Re: -fwhopr and -flto options reorg

[Xinliang David Li <davidxl at google dot com>]

-flto=jobserv sounds confusing.  -flto=auto?  Somehow it sounds more
natural (to me) to make partition strategy an argument for -flto
instead of make the parallelism level.

-flto=[none|balanced|....]

-flto-parallel=[n|auto]

Does -flto imply -fwpa by default or not?

Thanks,

David

On Thu, Nov 11, 2010 at 10:01 AM, Jan Hubicka <hubicka@ucw.cz> wrote:
> Hi,
> this patch does the change discussed on gcc summit converting -fwhopr to -flto.
> -flto=n and -flto=jobserv syntax is supported.
> -flto can be done by -flto-partition=none -flto.
>
> I did not made other changes, like enabling linker plugin by default or autodetecting
> jobserv as this is boring and large enough already.
>
> Bootstrapped/regtested x86_64-linux, OK?
>
> Honza
>
> ? ? ? ?* doc/invoke.texi (-fwhopr): Merge into -flto section.
> ? ? ? ?(-flto-partition): Document none.
> ? ? ? ?* flags.h (flag_whopr): Declare.
> ? ? ? ?* gcc.c (LINK_COMMAND_SPEC): Remove -fwhopr.
> ? ? ? ?* toplev.c (flag_whopr): Define.
> ? ? ? ?* lto-wrapper.c: Update comment.
> ? ? ? ?(run_gcc): Update LTO option parsing.
> ? ? ? ?* opts.c (finish_options): -flto really enables flag_whopr;
> ? ? ? ?add support -flto-partition=none
> ? ? ? ?(common_handle_option): Remove fwhopr.
> ? ? ? ?* common.opt: Turn fwhopr into flto.
> ? ? ? ?* collect2.c (main): Update option handling.
>
> ? ? ? ?* gcc.dg/20081223-1.c: Update LTO options.
> ? ? ? ?* gcc.dg/lto/20090206-1_0.c: Update LTO options.
> ? ? ? ?* gcc.dg/lto/20081118_0.c: Update LTO options.
> ? ? ? ?* gcc.dg/lto/ipareference_0.c: Update LTO options.
> ? ? ? ?* gcc.dg/lto/20100423-2_0.c: Update LTO options.
> ? ? ? ?* gcc.dg/lto/20081201-1_0.c: Update LTO options.
> ? ? ? ?* gcc.dg/lto/ipacp_0.c: Update LTO options.
> ? ? ? ?* gcc.dg/lto/20090116_0.c: Update LTO options.
> ? ? ? ?* gcc.dg/lto/20091015-1_0.c: Update LTO options.
> ? ? ? ?* gcc.dg/lto/20090126-2_0.c: Update LTO options.
> ? ? ? ?* gcc.dg/lto/20081202-2_0.c: Update LTO options.
> ? ? ? ?* gcc.dg/lto/20081204-1_0.c: Update LTO options.
> ? ? ? ?* gcc.dg/lto/const-uniq_0.c: Update LTO options.
> ? ? ? ?* gcc.dg/lto/20081224_0.c: Update LTO options.
> ? ? ? ?* gcc.dg/lto/20090219_0.c: Update LTO options.
> ? ? ? ?* gcc.dg/lto/ipareference2_0.c: Update LTO options.
> ? ? ? ?* gcc.dg/lto/20090206-2_0.c: Update LTO options.
> ? ? ? ?* gcc.dg/lto/20081115_0.c: Update LTO options.
> ? ? ? ?* gcc.dg/lto/20081201-2_0.c: Update LTO options.
> ? ? ? ?* gcc.dg/lto/20081120-2_0.c: Update LTO options.
> ? ? ? ?* gcc.dg/lto/materialize-1_0.c: Update LTO options.
> ? ? ? ?* gcc.dg/lto/20090126-1_0.c: Update LTO options.
> ? ? ? ?* gcc.dg/lto/20081202-1_0.c: Update LTO options.
> ? ? ? ?* gcc.dg/lto/noreturn-1_0.c: Update LTO options.
> ? ? ? ?* g++.dg/20090107-1.C: Update LTO options.
> ? ? ? ?* g++.dg/lto/pr45679-2_0.C: Update LTO options.
> ? ? ? ?* g++.dg/lto/20081123_0.C: Update LTO options.
> ? ? ? ?* g++.dg/lto/20090313_0.C: Update LTO options.
> ? ? ? ?* g++.dg/lto/20081125_0.C: Update LTO options.
> ? ? ? ?* g++.dg/lto/20081109-1_0.C: Update LTO options.
> ? ? ? ?* g++.dg/lto/20081219_0.C: Update LTO options.
> ? ? ? ?* g++.dg/lto/20100724-1_0.C: Update LTO options.
> ? ? ? ?* g++.dg/lto/20081204-1_0.C: Update LTO options.
> ? ? ? ?* g++.dg/lto/20090303_0.C: Update LTO options.
> ? ? ? ?* g++.dg/lto/20100723-1_0.C: Update LTO options.
> ? ? ? ?* g++.dg/lto/pr45679-1_0.C: Update LTO options.
> ? ? ? ?* g++.dg/lto/20090128_0.C: Update LTO options.
> ? ? ? ?* g++.dg/lto/20081204-2_0.C: Update LTO options.
> ? ? ? ?* g++.dg/lto/20090302_0.C: Update LTO options.
> ? ? ? ?* g++.dg/lto/20081119-1_0.C: Update LTO options.
> ? ? ? ?* g++.dg/lto/20081118_0.C: Update LTO options.
> ? ? ? ?* g++.dg/20090121-1.C: Update LTO options.
> ? ? ? ?* objc.dg/lto/lto.exp: Update LTO options.
> ? ? ? ?* lib/lto.exp: Update LTO options.
> ? ? ? ?* lib/gcc-dg.exp: Update LTO options.
> ? ? ? ?* lib/c-torture.exp: Update LTO options.
> ? ? ? ?* obj-c++.dg/lto/lto.exp: Update LTO options.
> Index: doc/invoke.texi
> ===================================================================
> *** doc/invoke.texi ? ? (revision 166582)
> --- doc/invoke.texi ? ? (working copy)
> *************** and those merged by attribute @code{exte
> *** 7429,7442 ****
> ?and in effect are optimized more aggressively by interprocedural optimizers. If @command{gold} is used as the linker plugin, @code{externally_visible} attributes are automatically added to functions (not variable yet due to a current @command{gold} issue) that are accessed outside of LTO objects according to resolution file produced by @command{gold}. ?For other linkers that cannot generate resolution file, explicit @code{externally_visible} attributes are still necessary.
> ?While this option is equivalent to proper use of the @code{static} keyword for
> ?programs consisting of a single file, in combination with option
> ! @option{-flto} or @option{-fwhopr} this flag can be used to
> ?compile many smaller scale programs since the functions and variables become
> ?local for the whole combined compilation unit, not for the single source file
> ?itself.
>
> ?This option implies @option{-fwhole-file} for Fortran programs.
>
> ! @item -flto
> ?@opindex flto
> ?This option runs the standard link-time optimizer. ?When invoked
> ?with source code, it generates GIMPLE (one of GCC's internal
> --- 7429,7442 ----
> ?and in effect are optimized more aggressively by interprocedural optimizers. If @command{gold} is used as the linker plugin, @code{externally_visible} attributes are automatically added to functions (not variable yet due to a current @command{gold} issue) that are accessed outside of LTO objects according to resolution file produced by @command{gold}. ?For other linkers that cannot generate resolution file, explicit @code{externally_visible} attributes are still necessary.
> ?While this option is equivalent to proper use of the @code{static} keyword for
> ?programs consisting of a single file, in combination with option
> ! @option{-flto} this flag can be used to
> ?compile many smaller scale programs since the functions and variables become
> ?local for the whole combined compilation unit, not for the single source file
> ?itself.
>
> ?This option implies @option{-fwhole-file} for Fortran programs.
>
> ! @item -flto[=@var{n}]
> ?@opindex flto
> ?This option runs the standard link-time optimizer. ?When invoked
> ?with source code, it generates GIMPLE (one of GCC's internal
> *************** If you are not using @command{gold} and/
> *** 7575,7586 ****
> ?will be extracted and linked as usual, but they will not participate
> ?in the LTO optimization process.
>
> ! Link time optimizations do not require the presence of the whole
> ! program to operate. ?If the program does not require any symbols to
> ! be exported, it is possible to combine @option{-flto} and
> ! @option{-fwhopr} with @option{-fwhole-program} to allow the
> ! interprocedural optimizers to use more aggressive assumptions which
> ! may lead to improved optimization opportunities.
>
> ?Regarding portability: the current implementation of LTO makes no
> ?attempt at generating bytecode that can be ported between different
> --- 7575,7587 ----
> ?will be extracted and linked as usual, but they will not participate
> ?in the LTO optimization process.
>
> ! Link time optimizations do not require the presence of the whole program to
> ! operate. ?If the program does not require any symbols to be exported, it is
> ! possible to combine @option{-flto} and with @option{-fwhole-program} to allow
> ! the interprocedural optimizers to use more aggressive assumptions which may
> ! lead to improved optimization opportunities.
> ! Use of @option{-fwhole-program} is not needed when linker plugin is
> ! active (see @option{-fuse-linker-plugin}).
>
> ?Regarding portability: the current implementation of LTO makes no
> ?attempt at generating bytecode that can be ported between different
> *************** strict version check, so bytecode files
> *** 7589,7611 ****
> ?GCC will not work with an older/newer version of GCC.
>
> ?Link time optimization does not play well with generating debugging
> ! information. ?Combining @option{-flto} or @option{-fwhopr} with
> ?@option{-g} is experimental.
>
> - This option is disabled by default.
> -
> - @item -fwhopr[=@var{n}]
> - @opindex fwhopr
> - This option is identical in functionality to @option{-flto} but it
> - differs in how the final link stage is executed. ?Instead of loading
> - all the function bodies in memory, the callgraph is analyzed and
> - optimization decisions are made (whole program analysis or WPA). Once
> - optimization decisions are made, the callgraph is partitioned and the
> - different sections are compiled separately (local transformations or
> - LTRANS)@. ?This process allows optimizations on very large programs
> - that otherwise would not fit in memory. ?This option enables
> - @option{-fwpa} and @option{-fltrans} automatically.
> -
> ?If you specify the optional @var{n} the link stage is executed in
> ?parallel using @var{n} parallel jobs by utilizing an installed
> ?@command{make} program. ?The environment variable @env{MAKE} may be
> --- 7590,7598 ----
> ?GCC will not work with an older/newer version of GCC.
>
> ?Link time optimization does not play well with generating debugging
> ! information. ?Combining @option{-flto} with
> ?@option{-g} is experimental.
>
> ?If you specify the optional @var{n} the link stage is executed in
> ?parallel using @var{n} parallel jobs by utilizing an installed
> ?@command{make} program. ?The environment variable @env{MAKE} may be
> *************** The parent Makefile will need a @samp{+}
> *** 7618,7631 ****
> ?for this to work. This will likely only work if @env{MAKE} is
> ?GNU make.
>
> ! Disabled by default.
>
> ?@item -flto-partition=@var{alg}
> ?@opindex flto-partition
> ?Specify partitioning algorithm used by @option{-fwhopr} mode. ?The value is
> ?either @code{1to1} to specify partitioning corresponding to source files
> ?or @code{balanced} to specify partitioning into, if possible, equally sized
> ! chunks. ?The default value is @code{balanced}.
>
> ?@item -fwpa
> ?@opindex fwpa
> --- 7605,7620 ----
> ?for this to work. This will likely only work if @env{MAKE} is
> ?GNU make.
>
> ! This option is disabled by default.
>
> ?@item -flto-partition=@var{alg}
> ?@opindex flto-partition
> ?Specify partitioning algorithm used by @option{-fwhopr} mode. ?The value is
> ?either @code{1to1} to specify partitioning corresponding to source files
> ?or @code{balanced} to specify partitioning into, if possible, equally sized
> ! chunks. ?Specifying @code{none} as an algorithm disables partitioning
> ! and streaming completely.
> ! The default value is @code{balanced}.
>
> ?@item -fwpa
> ?@opindex fwpa
> Index: flags.h
> ===================================================================
> *** flags.h ? ? (revision 166582)
> --- flags.h ? ? (working copy)
> *************** extern int flag_debug_asm;
> *** 101,106 ****
> --- 101,109 ----
> ?extern int flag_next_runtime;
>
> ?extern int flag_dump_rtl_in_asm;
> +
> + /* WHOPR mode. ?*/
> + extern bool flag_whopr;
>
> ?/* Other basic status info about current function. ?*/
>
> Index: gcc.c
> ===================================================================
> *** gcc.c ? ? ? (revision 166582)
> --- gcc.c ? ? ? (working copy)
> *************** proper position among the other output f
> *** 645,651 ****
> ?/* We want %{T*} after %{L*} and %D so that it can be used to specify linker
> ? ? scripts which exist in user specified directories, or in standard
> ? ? directories. ?*/
> ! /* We pass any -flto and -fwhopr flags on to the linker, which is expected
> ? ? to understand them. ?In practice, this means it had better be collect2. ?*/
> ?#ifndef LINK_COMMAND_SPEC
> ?#define LINK_COMMAND_SPEC "\
> --- 645,651 ----
> ?/* We want %{T*} after %{L*} and %D so that it can be used to specify linker
> ? ? scripts which exist in user specified directories, or in standard
> ? ? directories. ?*/
> ! /* We pass any -flto flags on to the linker, which is expected
> ? ? to understand them. ?In practice, this means it had better be collect2. ?*/
> ?#ifndef LINK_COMMAND_SPEC
> ?#define LINK_COMMAND_SPEC "\
> *************** proper position among the other output f
> *** 658,665 ****
> ? ? ?%{static|static-libgcc:-plugin-opt=-pass-through=%(lto_libgcc)} ? \
> ? ? ?%{static:-plugin-opt=-pass-through=-lc} ? \
> ? ? ?} \
> ! ? ? %{flto:%<fcompare-debug*} %{fwhopr*:%<fcompare-debug*} \
> ! ? ? %{flto} %{fwhopr*} %l " LINK_PIE_SPEC \
> ? ? "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
> ? ? ?%{s} %{t} %{u*} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
> ? ? ?%{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
> --- 658,665 ----
> ? ? ?%{static|static-libgcc:-plugin-opt=-pass-through=%(lto_libgcc)} ? \
> ? ? ?%{static:-plugin-opt=-pass-through=-lc} ? \
> ? ? ?} \
> ! ? ? %{flto*:%<fcompare-debug*} \
> ! ? ? %{flto*} %l " LINK_PIE_SPEC \
> ? ? "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
> ? ? ?%{s} %{t} %{u*} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
> ? ? ?%{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
> Index: toplev.c
> ===================================================================
> *** toplev.c ? ?(revision 166582)
> --- toplev.c ? ?(working copy)
> *************** int flag_debug_asm = 0;
> *** 203,208 ****
> --- 203,211 ----
>
> ?int flag_dump_rtl_in_asm = 0;
>
> + /* Is WHOPR mode enabled? ?*/
> + bool flag_whopr = 0;
> +
> ?/* When non-NULL, indicates that whenever space is allocated on the
> ? ? stack, the resulting stack pointer must not pass this
> ? ? address---that is, for stacks that grow downward, the stack pointer
> Index: testsuite/gcc.dg/20081223-1.c
> ===================================================================
> *** testsuite/gcc.dg/20081223-1.c ? ? ? (revision 166582)
> --- testsuite/gcc.dg/20081223-1.c ? ? ? (working copy)
> ***************
> *** 1,5 ****
> ?/* { dg-do compile } */
> ! /* { dg-options "-fwhopr" { target lto } } ?*/
>
> ?typedef struct foo_ foo_t;
> ?foo_t bar; ?/* { dg-error "storage size of 'bar' isn't known" } ?*/
> --- 1,5 ----
> ?/* { dg-do compile } */
> ! /* { dg-options "-flto" { target lto } } ?*/
>
> ?typedef struct foo_ foo_t;
> ?foo_t bar; ?/* { dg-error "storage size of 'bar' isn't known" } ?*/
> Index: testsuite/gcc.dg/lto/20090206-1_0.c
> ===================================================================
> *** testsuite/gcc.dg/lto/20090206-1_0.c (revision 166582)
> --- testsuite/gcc.dg/lto/20090206-1_0.c (working copy)
> ***************
> *** 1,6 ****
> ?/* { dg-lto-do link } */
> ?/* { dg-skip-if "" { ! { i?86-*-linux* x86_64-*-linux* } } { "*" } { "" } } */
> ! /* { dg-lto-options {{-fPIC -r -nostdlib -fwhopr -msse2}} } */
> ?/* { dg-require-effective-target sse2 } */
> ?/* { dg-suppress-ld-options {-fPIC -msse2} } */
>
> --- 1,6 ----
> ?/* { dg-lto-do link } */
> ?/* { dg-skip-if "" { ! { i?86-*-linux* x86_64-*-linux* } } { "*" } { "" } } */
> ! /* { dg-lto-options {{-fPIC -r -nostdlib -flto -flto-partition=1to1 -msse2}} } */
> ?/* { dg-require-effective-target sse2 } */
> ?/* { dg-suppress-ld-options {-fPIC -msse2} } */
>
> Index: testsuite/gcc.dg/lto/20081118_0.c
> ===================================================================
> *** testsuite/gcc.dg/lto/20081118_0.c ? (revision 166582)
> --- testsuite/gcc.dg/lto/20081118_0.c ? (working copy)
> ***************
> *** 1,4 ****
> ! /* { dg-lto-options {{-O2 -DOPTIMIZE -fwhopr} {-O0 -fwhopr}} } */
>
> ?extern void abort (void);
> ?extern int f (void);
> --- 1,4 ----
> ! /* { dg-lto-options {{-O2 -DOPTIMIZE -flto -flto-partition=1to1} {-O0 -flto -flto-partition=1to1}} } */
>
> ?extern void abort (void);
> ?extern int f (void);
> Index: testsuite/gcc.dg/lto/ipareference_0.c
> ===================================================================
> *** testsuite/gcc.dg/lto/ipareference_0.c ? ? ? (revision 166582)
> --- testsuite/gcc.dg/lto/ipareference_0.c ? ? ? (working copy)
> ***************
> *** 1,4 ****
> ! /* { dg-lto-options {{ -O1 -fwhopr }} } */
> ?/* { dg-lto-do run } */
>
> ?/* Test that ipa-reference notice that get_val will not change since do_nothing does not
> --- 1,4 ----
> ! /* { dg-lto-options {{ -O1 -flto -flto-partition=1to1 }} } */
> ?/* { dg-lto-do run } */
>
> ?/* Test that ipa-reference notice that get_val will not change since do_nothing does not
> Index: testsuite/gcc.dg/lto/20100423-2_0.c
> ===================================================================
> *** testsuite/gcc.dg/lto/20100423-2_0.c (revision 166582)
> --- testsuite/gcc.dg/lto/20100423-2_0.c (working copy)
> ***************
> *** 1,5 ****
> ?/* { dg-lto-do link } */
> ! /* { dg-lto-options {{-O2 -flto} {-O2 -fwhopr} {-O3 -flto} {-O3 -fwhopr}} } */
>
> ?#include <stdio.h>
>
> --- 1,5 ----
> ?/* { dg-lto-do link } */
> ! /* { dg-lto-options {{-O2 -flto -flto-partition=none} {-O2 -flto -flto-partition=1to1} {-O3 -flto -flto-partition=none} {-O3 -flto -flto-partition=1to1}} } */
>
> ?#include <stdio.h>
>
> Index: testsuite/gcc.dg/lto/20081201-1_0.c
> ===================================================================
> *** testsuite/gcc.dg/lto/20081201-1_0.c (revision 166582)
> --- testsuite/gcc.dg/lto/20081201-1_0.c (working copy)
> ***************
> *** 1,4 ****
> ! /* { dg-lto-options {{-O2 -DOPTIMIZE -fwhopr} {-O0 -fwhopr}} } */
>
> ?extern void abort (void);
>
> --- 1,4 ----
> ! /* { dg-lto-options {{-O2 -DOPTIMIZE -flto -flto-partition=1to1} {-O0 -flto -flto-partition=1to1}} } */
>
> ?extern void abort (void);
>
> Index: testsuite/gcc.dg/lto/ipacp_0.c
> ===================================================================
> *** testsuite/gcc.dg/lto/ipacp_0.c ? ? ?(revision 166582)
> --- testsuite/gcc.dg/lto/ipacp_0.c ? ? ?(working copy)
> ***************
> *** 1,4 ****
> ! /* { dg-lto-options {{ -O1 -fwhopr -fipa-cp -fipa-cp-clone}} } */
> ?/* { dg-lto-do run } */
>
> ?/* Test that clonning happens and we unify declarations of a from both units. ?*/
> --- 1,4 ----
> ! /* { dg-lto-options {{ -O1 -flto -flto-partition=1to1 -fipa-cp -fipa-cp-clone}} } */
> ?/* { dg-lto-do run } */
>
> ?/* Test that clonning happens and we unify declarations of a from both units. ?*/
> Index: testsuite/gcc.dg/lto/20090116_0.c
> ===================================================================
> *** testsuite/gcc.dg/lto/20090116_0.c ? (revision 166582)
> --- testsuite/gcc.dg/lto/20090116_0.c ? (working copy)
> ***************
> *** 1,5 ****
> ?/* { dg-lto-do link } */
> ! /* { dg-lto-options {{-O1 -fwhopr -fPIC}} } */
> ?/* { dg-extra-ld-options {-r -nostdlib -O0} } */
>
> ?int foo(void) {
> --- 1,5 ----
> ?/* { dg-lto-do link } */
> ! /* { dg-lto-options {{-O1 -flto -flto-partition=1to1 -fPIC}} } */
> ?/* { dg-extra-ld-options {-r -nostdlib -O0} } */
>
> ?int foo(void) {
> Index: testsuite/gcc.dg/lto/20091015-1_0.c
> ===================================================================
> *** testsuite/gcc.dg/lto/20091015-1_0.c (revision 166582)
> --- testsuite/gcc.dg/lto/20091015-1_0.c (working copy)
> ***************
> *** 1,5 ****
> ?/* { dg-lto-do link } */
> ! /* { dg-lto-options {{-fPIC -r -nostdlib -O2 -flto} {-fPIC -r -nostdlib -O2 -fwhopr}} } */
>
> ?#include "20091015-1_b.h"
> ?void diagnostic_initialize (FILE **stream) { *stream = stderr; }
> --- 1,5 ----
> ?/* { dg-lto-do link } */
> ! /* { dg-lto-options {{-fPIC -r -nostdlib -O2 -flto} {-fPIC -r -nostdlib -O2 -flto -flto-partition=1to1}} } */
>
> ?#include "20091015-1_b.h"
> ?void diagnostic_initialize (FILE **stream) { *stream = stderr; }
> Index: testsuite/gcc.dg/lto/20090126-2_0.c
> ===================================================================
> *** testsuite/gcc.dg/lto/20090126-2_0.c (revision 166582)
> --- testsuite/gcc.dg/lto/20090126-2_0.c (working copy)
> ***************
> *** 1,6 ****
> ?/* { dg-lto-do link } */
> ! /* { dg-lto-options {{-fPIC -O2 -fwhopr}} } */
> ! /* { dg-extra-ld-options {-fno-PIC -r -nostdlib -O2 -fwhopr} } */
>
> ?int main(int argc, char **argv) {
> ? ?return 0;
> --- 1,6 ----
> ?/* { dg-lto-do link } */
> ! /* { dg-lto-options {{-fPIC -O2 -flto -flto-partition=1to1}} } */
> ! /* { dg-extra-ld-options {-fno-PIC -r -nostdlib -O2 -flto -flto-partition=1to1} } */
>
> ?int main(int argc, char **argv) {
> ? ?return 0;
> Index: testsuite/gcc.dg/lto/20081202-2_0.c
> ===================================================================
> *** testsuite/gcc.dg/lto/20081202-2_0.c (revision 166582)
> --- testsuite/gcc.dg/lto/20081202-2_0.c (working copy)
> ***************
> *** 1,4 ****
> ! /* { dg-lto-options {{-fwhopr -O3}} } */
>
> ?extern void exit (int);
> ?extern void *foo (void);
> --- 1,4 ----
> ! /* { dg-lto-options {{-flto -flto-partition=1to1 -O3}} } */
>
> ?extern void exit (int);
> ?extern void *foo (void);
> Index: testsuite/gcc.dg/lto/20081204-1_0.c
> ===================================================================
> *** testsuite/gcc.dg/lto/20081204-1_0.c (revision 166582)
> --- testsuite/gcc.dg/lto/20081204-1_0.c (working copy)
> ***************
> *** 1,5 ****
> ?/* { dg-lto-do link } */
> ! /* { dg-lto-options {{-fwhopr -fPIC -r -nostdlib}} } */
>
> ?/* Tests for the absence during linking of:
> ? ? lto1: error: type of 'i' does not match original declaration ?*/
> --- 1,5 ----
> ?/* { dg-lto-do link } */
> ! /* { dg-lto-options {{-flto -flto-partition=1to1 -fPIC -r -nostdlib}} } */
>
> ?/* Tests for the absence during linking of:
> ? ? lto1: error: type of 'i' does not match original declaration ?*/
> Index: testsuite/gcc.dg/lto/const-uniq_0.c
> ===================================================================
> *** testsuite/gcc.dg/lto/const-uniq_0.c (revision 166582)
> --- testsuite/gcc.dg/lto/const-uniq_0.c (working copy)
> ***************
> *** 1,7 ****
> ?/* The 3 constant initializers should be uniquized. ?*/
>
> ?/* { dg-lto-do run } */
> ! /* { dg-lto-options {{-Os -flto} {-Os -fwhopr} } } */
>
> ?int lookup1 (int i)
> ?{
> --- 1,7 ----
> ?/* The 3 constant initializers should be uniquized. ?*/
>
> ?/* { dg-lto-do run } */
> ! /* { dg-lto-options {{-Os -flto -flto-partition=none} {-Os -flto -flto-partition=1to1} } } */
>
> ?int lookup1 (int i)
> ?{
> Index: testsuite/gcc.dg/lto/20081224_0.c
> ===================================================================
> *** testsuite/gcc.dg/lto/20081224_0.c ? (revision 166582)
> --- testsuite/gcc.dg/lto/20081224_0.c ? (working copy)
> ***************
> *** 1,5 ****
> ?/* { dg-lto-do link } */
> ! /* { dg-lto-options {{-fwhopr -r -nostdlib -fPIC}} } */
> ?#include "20081224_0.h"
>
> ?extern struct foo x;
> --- 1,5 ----
> ?/* { dg-lto-do link } */
> ! /* { dg-lto-options {{-flto -flto-partition=1to1 -r -nostdlib -fPIC}} } */
> ?#include "20081224_0.h"
>
> ?extern struct foo x;
> Index: testsuite/gcc.dg/lto/20090219_0.c
> ===================================================================
> *** testsuite/gcc.dg/lto/20090219_0.c ? (revision 166582)
> --- testsuite/gcc.dg/lto/20090219_0.c ? (working copy)
> ***************
> *** 1,5 ****
> ?/* { dg-lto-do link } */
> ! /* { dg-lto-options {{-O3 -fwhopr -fPIC -r -nostdlib}} } */
>
> ?struct Foo { int f1, f2, f3, f4, f5; };
>
> --- 1,5 ----
> ?/* { dg-lto-do link } */
> ! /* { dg-lto-options {{-O3 -flto -flto-partition=1to1 -fPIC -r -nostdlib}} } */
>
> ?struct Foo { int f1, f2, f3, f4, f5; };
>
> Index: testsuite/gcc.dg/lto/ipareference2_0.c
> ===================================================================
> *** testsuite/gcc.dg/lto/ipareference2_0.c ? ? ?(revision 166582)
> --- testsuite/gcc.dg/lto/ipareference2_0.c ? ? ?(working copy)
> ***************
> *** 1,4 ****
> ! /* { dg-lto-options {{ -O1 -fwhopr -fwhole-program}} } */
> ?/* { dg-lto-do run } */
>
> ?/* Verify that ipa-reference marks A as constant and we fold references
> --- 1,4 ----
> ! /* { dg-lto-options {{ -O1 -flto -flto-partition=1to1 -fwhole-program}} } */
> ?/* { dg-lto-do run } */
>
> ?/* Verify that ipa-reference marks A as constant and we fold references
> Index: testsuite/gcc.dg/lto/20090206-2_0.c
> ===================================================================
> *** testsuite/gcc.dg/lto/20090206-2_0.c (revision 166582)
> --- testsuite/gcc.dg/lto/20090206-2_0.c (working copy)
> ***************
> *** 1,6 ****
> ?/* { dg-lto-do link } */
> ?/* { dg-skip-if "" { ! { i?86-*-linux* x86_64-*-linux* } } { "*" } { "" } } */
> ! /* { dg-lto-options {{-fwhopr -fPIC}} } */
> ?/* { dg-suppress-ld-options {-fPIC} } */
>
> ?void func(int n) {
> --- 1,6 ----
> ?/* { dg-lto-do link } */
> ?/* { dg-skip-if "" { ! { i?86-*-linux* x86_64-*-linux* } } { "*" } { "" } } */
> ! /* { dg-lto-options {{-flto -flto-partition=1to1 -fPIC}} } */
> ?/* { dg-suppress-ld-options {-fPIC} } */
>
> ?void func(int n) {
> Index: testsuite/gcc.dg/lto/20081115_0.c
> ===================================================================
> *** testsuite/gcc.dg/lto/20081115_0.c ? (revision 166582)
> --- testsuite/gcc.dg/lto/20081115_0.c ? (working copy)
> ***************
> *** 1,4 ****
> ! /* { dg-lto-options {{-O2 -DOPTIMIZE -fwhopr} {-O0 -fwhopr}} } */
>
> ?extern void abort (void);
>
> --- 1,4 ----
> ! /* { dg-lto-options {{-O2 -DOPTIMIZE -flto -flto-partition=1to1} {-O0 -flto -flto-partition=1to1}} } */
>
> ?extern void abort (void);
>
> Index: testsuite/gcc.dg/lto/20100423-1_0.c
> ===================================================================
> *** testsuite/gcc.dg/lto/20100423-1_0.c (revision 166582)
> --- testsuite/gcc.dg/lto/20100423-1_0.c (working copy)
> ***************
> *** 1,5 ****
> ?/* { dg-lto-do run } */
> ! /* { dg-lto-options {{-O2 -flto}} } */
>
> ?struct bar {int x;};
> ?extern struct bar foo(void);
> --- 1,5 ----
> ?/* { dg-lto-do run } */
> ! /* { dg-lto-options {{-O2 -flto -flto-partition=none}} } */
>
> ?struct bar {int x;};
> ?extern struct bar foo(void);
> Index: testsuite/gcc.dg/lto/20081201-2_0.c
> ===================================================================
> *** testsuite/gcc.dg/lto/20081201-2_0.c (revision 166582)
> --- testsuite/gcc.dg/lto/20081201-2_0.c (working copy)
> ***************
> *** 1,4 ****
> ! /* { dg-lto-options {{-O3 -fwhopr}} } */
>
> ?/* Test that cross-TU inlining works. ?*/
>
> --- 1,4 ----
> ! /* { dg-lto-options {{-O3 -flto -flto-partition=1to1}} } */
>
> ?/* Test that cross-TU inlining works. ?*/
>
> Index: testsuite/gcc.dg/lto/20081120-2_0.c
> ===================================================================
> *** testsuite/gcc.dg/lto/20081120-2_0.c (revision 166582)
> --- testsuite/gcc.dg/lto/20081120-2_0.c (working copy)
> ***************
> *** 1,3 ****
> ?/* { dg-lto-do link } */
> ! /* { dg-lto-options {{-fwhopr -r -nostdlib}} } */
> ?void bar(void) {}
> --- 1,3 ----
> ?/* { dg-lto-do link } */
> ! /* { dg-lto-options {{-flto -flto-partition=1to1 -r -nostdlib}} } */
> ?void bar(void) {}
> Index: testsuite/gcc.dg/lto/materialize-1_0.c
> ===================================================================
> *** testsuite/gcc.dg/lto/materialize-1_0.c ? ? ?(revision 166582)
> --- testsuite/gcc.dg/lto/materialize-1_0.c ? ? ?(working copy)
> ***************
> *** 1,4 ****
> ! /* { dg-lto-options {{ -O3 -fwhopr}} } */
> ?/* { dg-lto-do run } */
> ?extern void clone_me (int, int);
> ?int a=15;
> --- 1,4 ----
> ! /* { dg-lto-options {{ -O3 -flto -flto-partition=1to1}} } */
> ?/* { dg-lto-do run } */
> ?extern void clone_me (int, int);
> ?int a=15;
> Index: testsuite/gcc.dg/lto/20090126-1_0.c
> ===================================================================
> *** testsuite/gcc.dg/lto/20090126-1_0.c (revision 166582)
> --- testsuite/gcc.dg/lto/20090126-1_0.c (working copy)
> ***************
> *** 1,6 ****
> ?/* { dg-lto-do link } */
> ! /* { dg-lto-options {{-O0 -fwhopr}} } */
> ! /* { dg-extra-ld-options {-r -nostdlib -O2 -fwhopr} } */
>
> ?int main(int argc, char **argv) {
> ? ?return 0;
> --- 1,6 ----
> ?/* { dg-lto-do link } */
> ! /* { dg-lto-options {{-O0 -flto -flto-partition=1to1}} } */
> ! /* { dg-extra-ld-options {-r -nostdlib -O2 -flto -flto-partition=1to1} } */
>
> ?int main(int argc, char **argv) {
> ? ?return 0;
> Index: testsuite/gcc.dg/lto/20081202-1_0.c
> ===================================================================
> *** testsuite/gcc.dg/lto/20081202-1_0.c (revision 166582)
> --- testsuite/gcc.dg/lto/20081202-1_0.c (working copy)
> ***************
> *** 1,4 ****
> ! /* { dg-lto-options {{-fwhopr -O3}} } */
>
> ?extern void exit (int);
> ?extern void foo (void);
> --- 1,4 ----
> ! /* { dg-lto-options {{-flto -flto-partition=1to1 -O3}} } */
>
> ?extern void exit (int);
> ?extern void foo (void);
> Index: testsuite/gcc.dg/lto/noreturn-1_0.c
> ===================================================================
> *** testsuite/gcc.dg/lto/noreturn-1_0.c (revision 166582)
> --- testsuite/gcc.dg/lto/noreturn-1_0.c (working copy)
> ***************
> *** 1,5 ****
> ?/* { dg-lto-do run } */
> ! /* { dg-lto-options {{-O2 -fwhopr} } } */
>
> ?void exit (int);
> ?__attribute__ ((noreturn))
> --- 1,5 ----
> ?/* { dg-lto-do run } */
> ! /* { dg-lto-options {{-O2 -flto -flto-partition=1to1} } } */
>
> ?void exit (int);
> ?__attribute__ ((noreturn))
> Index: testsuite/g++.dg/20090107-1.C
> ===================================================================
> *** testsuite/g++.dg/20090107-1.C ? ? ? (revision 166582)
> --- testsuite/g++.dg/20090107-1.C ? ? ? (working copy)
> ***************
> *** 1,6 ****
> ?/* { dg-do compile } */
> ?/* { dg-require-effective-target lto } */
> ! /* { dg-options "-fwhopr -Wuninitialized -O1" } ?*/
>
> ?template <typename T> struct Q1 { typedef int x; };
> ?template <typename T> struct Q2 {
> --- 1,6 ----
> ?/* { dg-do compile } */
> ?/* { dg-require-effective-target lto } */
> ! /* { dg-options "-flto -Wuninitialized -O1" } ?*/
>
> ?template <typename T> struct Q1 { typedef int x; };
> ?template <typename T> struct Q2 {
> Index: testsuite/g++.dg/lto/pr45679-2_0.C
> ===================================================================
> *** testsuite/g++.dg/lto/pr45679-2_0.C ?(revision 166582)
> --- testsuite/g++.dg/lto/pr45679-2_0.C ?(working copy)
> ***************
> *** 1,6 ****
> ?// { dg-lto-do link }
> ?// { dg-lto-options {{-O3 -Wno-multichar}} }
> ! // { dg-extra-ld-options "-fwhopr -r -nostdlib" }
> ? ? ?extern "C" {
> ? ?typedef struct {
> ? ? ?union ? {
> --- 1,6 ----
> ?// { dg-lto-do link }
> ?// { dg-lto-options {{-O3 -Wno-multichar}} }
> ! // { dg-extra-ld-options "-flto -flto-partition=1to1 -r -nostdlib" }
> ? ? ?extern "C" {
> ? ?typedef struct {
> ? ? ?union ? {
> Index: testsuite/g++.dg/lto/20081123_0.C
> ===================================================================
> *** testsuite/g++.dg/lto/20081123_0.C ? (revision 166582)
> --- testsuite/g++.dg/lto/20081123_0.C ? (working copy)
> ***************
> *** 1,5 ****
> ?// { dg-lto-do link }
> ! // { dg-lto-options {{-fwhopr -r -nostdlib -fPIC}} }
>
> ?int
> ?f(void)
> --- 1,5 ----
> ?// { dg-lto-do link }
> ! // { dg-lto-options {{-flto -flto-partition=1to1 -r -nostdlib -fPIC}} }
>
> ?int
> ?f(void)
> Index: testsuite/g++.dg/lto/20090313_0.C
> ===================================================================
> *** testsuite/g++.dg/lto/20090313_0.C ? (revision 166582)
> --- testsuite/g++.dg/lto/20090313_0.C ? (working copy)
> ***************
> *** 1,5 ****
> ?// { dg-lto-do link }
> ! // { dg-lto-options {{-fwhopr -fPIC}} }
> ! // { dg-extra-ld-options "-fwhopr -r -nostdlib" }
>
> ?int X;
> --- 1,5 ----
> ?// { dg-lto-do link }
> ! // { dg-lto-options {{-flto -flto-partition=1to1 -fPIC}} }
> ! // { dg-extra-ld-options "-flto -flto-partition=1to1 -r -nostdlib" }
>
> ?int X;
> Index: testsuite/g++.dg/lto/20081125_0.C
> ===================================================================
> *** testsuite/g++.dg/lto/20081125_0.C ? (revision 166582)
> --- testsuite/g++.dg/lto/20081125_0.C ? (working copy)
> ***************
> *** 1,5 ****
> ?// { dg-lto-do link }
> ! // { dg-lto-options {{-fwhopr}} }
> ?#include "20081125.h"
>
> ?object::object (int x)
> --- 1,5 ----
> ?// { dg-lto-do link }
> ! // { dg-lto-options {{-flto -flto-partition=1to1}} }
> ?#include "20081125.h"
>
> ?object::object (int x)
> Index: testsuite/g++.dg/lto/20081109-1_0.C
> ===================================================================
> *** testsuite/g++.dg/lto/20081109-1_0.C (revision 166582)
> --- testsuite/g++.dg/lto/20081109-1_0.C (working copy)
> ***************
> *** 1,5 ****
> ?// { dg-lto-do link }
> ! // { dg-lto-options {{-fPIC -fwhopr}} }
> ! // { dg-extra-ld-options "-fPIC -fwhopr -r -nostdlib -fno-exceptions" }
> ?void func(); class Foo { };
> ?void bar() { try { func(); } catch (Foo) { } };
> --- 1,5 ----
> ?// { dg-lto-do link }
> ! // { dg-lto-options {{-fPIC -flto -flto-partition=1to1}} }
> ! // { dg-extra-ld-options "-fPIC -flto -flto-partition=1to1 -r -nostdlib -fno-exceptions" }
> ?void func(); class Foo { };
> ?void bar() { try { func(); } catch (Foo) { } };
> Index: testsuite/g++.dg/lto/20081219_0.C
> ===================================================================
> *** testsuite/g++.dg/lto/20081219_0.C ? (revision 166582)
> --- testsuite/g++.dg/lto/20081219_0.C ? (working copy)
> ***************
> *** 1,6 ****
> ?// { dg-lto-do link }
> ! // { dg-lto-options {{-fPIC -fwhopr -O2}} }
> ! // { dg-extra-ld-options "-O2 -fPIC -fwhopr -r -nostdlib" }
>
> ?typedef long int ptrdiff_t;
> ?extern "C"
> --- 1,6 ----
> ?// { dg-lto-do link }
> ! // { dg-lto-options {{-fPIC -flto -flto-partition=1to1 -O2}} }
> ! // { dg-extra-ld-options "-O2 -fPIC -flto -flto-partition=1to1 -r -nostdlib" }
>
> ?typedef long int ptrdiff_t;
> ?extern "C"
> Index: testsuite/g++.dg/lto/20100724-1_0.C
> ===================================================================
> *** testsuite/g++.dg/lto/20100724-1_0.C (revision 166582)
> --- testsuite/g++.dg/lto/20100724-1_0.C (working copy)
> ***************
> *** 1,5 ****
> ?/* { dg-lto-do link } */
> ! /* { dg-lto-options {{-ftoplevel-reorder -flto} {-ftoplevel-reorder -fwhopr}} } */
> ?/* { dg-extra-ld-options {-r -nostdlib} } */
>
> ?struct Foo { virtual ~Foo(); };
> --- 1,5 ----
> ?/* { dg-lto-do link } */
> ! /* { dg-lto-options {{-ftoplevel-reorder -flto -flto-partition=none} {-ftoplevel-reorder -flto -flto-partition=1to1}} } */
> ?/* { dg-extra-ld-options {-r -nostdlib} } */
>
> ?struct Foo { virtual ~Foo(); };
> Index: testsuite/g++.dg/lto/20081204-1_0.C
> ===================================================================
> *** testsuite/g++.dg/lto/20081204-1_0.C (revision 166582)
> --- testsuite/g++.dg/lto/20081204-1_0.C (working copy)
> ***************
> *** 1,5 ****
> ?/* { dg-lto-do link } */
> ! /* { dg-lto-options {{-fwhopr -fPIC -r -nostdlib}} } */
>
> ?/* Tests for the absence during linking of:
> ? ? lto1: error: type of '_ZTVN10__cxxabiv120__si_class_type_infoE' does
> --- 1,5 ----
> ?/* { dg-lto-do link } */
> ! /* { dg-lto-options {{-flto -flto-partition=1to1 -fPIC -r -nostdlib}} } */
>
> ?/* Tests for the absence during linking of:
> ? ? lto1: error: type of '_ZTVN10__cxxabiv120__si_class_type_infoE' does
> Index: testsuite/g++.dg/lto/20090303_0.C
> ===================================================================
> *** testsuite/g++.dg/lto/20090303_0.C ? (revision 166582)
> --- testsuite/g++.dg/lto/20090303_0.C ? (working copy)
> ***************
> *** 1,5 ****
> ?/* { dg-lto-do run } */
> ! /* { dg-lto-options {{-fwhopr -fPIC}} } */
> ?/* { dg-suppress-ld-options {-fPIC} } ?*/
> ?void foobar(int *, int* __x) ? ?;
> ?int test_ints[30];
> --- 1,5 ----
> ?/* { dg-lto-do run } */
> ! /* { dg-lto-options {{-flto -flto-partition=1to1 -fPIC}} } */
> ?/* { dg-suppress-ld-options {-fPIC} } ?*/
> ?void foobar(int *, int* __x) ? ?;
> ?int test_ints[30];
> Index: testsuite/g++.dg/lto/20100723-1_0.C
> ===================================================================
> *** testsuite/g++.dg/lto/20100723-1_0.C (revision 166582)
> --- testsuite/g++.dg/lto/20100723-1_0.C (working copy)
> ***************
> *** 1,5 ****
> ?/* { dg-lto-do link } */
> ! /* { dg-lto-options {{-fcompare-debug -flto} {-fcompare-debug -fwhopr}} } */
>
> ?struct S {
> ? ? ?virtual void f() { }
> --- 1,5 ----
> ?/* { dg-lto-do link } */
> ! /* { dg-lto-options {{-fcompare-debug -flto -flto-partition=none} {-fcompare-debug -flto -flto-partition=1to1}} } */
>
> ?struct S {
> ? ? ?virtual void f() { }
> Index: testsuite/g++.dg/lto/pr45679-1_0.C
> ===================================================================
> *** testsuite/g++.dg/lto/pr45679-1_0.C ?(revision 166582)
> --- testsuite/g++.dg/lto/pr45679-1_0.C ?(working copy)
> ***************
> *** 1,6 ****
> ?// { dg-lto-do link }
> ?// { dg-lto-options {{-O3 -Wno-multichar}} }
> ! // { dg-extra-ld-options "-fwhopr -r -nostdlib" }
>
> ? ? ? extern "C" {
> ? ? typedef struct __locale_struct {
> --- 1,6 ----
> ?// { dg-lto-do link }
> ?// { dg-lto-options {{-O3 -Wno-multichar}} }
> ! // { dg-extra-ld-options "-flto -flto-partition=1to1 -r -nostdlib" }
>
> ? ? ? extern "C" {
> ? ? typedef struct __locale_struct {
> Index: testsuite/g++.dg/lto/20090128_0.C
> ===================================================================
> *** testsuite/g++.dg/lto/20090128_0.C ? (revision 166582)
> --- testsuite/g++.dg/lto/20090128_0.C ? (working copy)
> ***************
> *** 1,5 ****
> ?// { dg-lto-do assemble }
> ! // { dg-lto-options {{-fpreprocessed -O2 -fwhopr -funsigned-char}} }
> ?typedef unsigned char uint8;
> ?extern const uint8 array[256];
> ?static inline bool
> --- 1,5 ----
> ?// { dg-lto-do assemble }
> ! // { dg-lto-options {{-fpreprocessed -O2 -flto -flto-partition=1to1 -funsigned-char}} }
> ?typedef unsigned char uint8;
> ?extern const uint8 array[256];
> ?static inline bool
> Index: testsuite/g++.dg/lto/20081204-2_0.C
> ===================================================================
> *** testsuite/g++.dg/lto/20081204-2_0.C (revision 166582)
> --- testsuite/g++.dg/lto/20081204-2_0.C (working copy)
> ***************
> *** 1,5 ****
> ?// { dg-lto-do link }
> ! // { dg-lto-options {{-fwhopr -O3}} }
> ?extern void foo (void);
>
> ?int
> --- 1,5 ----
> ?// { dg-lto-do link }
> ! // { dg-lto-options {{-flto -flto-partition=1to1 -O3}} }
> ?extern void foo (void);
>
> ?int
> Index: testsuite/g++.dg/lto/20090302_0.C
> ===================================================================
> *** testsuite/g++.dg/lto/20090302_0.C ? (revision 166582)
> --- testsuite/g++.dg/lto/20090302_0.C ? (working copy)
> ***************
> *** 1,5 ****
> ?/* { dg-lto-do link } */
> ! /* { dg-lto-options {{-fPIC -fwhopr -r -nostdlib}} } */
> ?struct Foo {
> ? ?bool Mumble();
> ? ?static void Bar() { if (foo_->Mumble()) foo_ = 0; }
> --- 1,5 ----
> ?/* { dg-lto-do link } */
> ! /* { dg-lto-options {{-fPIC -flto -flto-partition=1to1 -r -nostdlib}} } */
> ?struct Foo {
> ? ?bool Mumble();
> ? ?static void Bar() { if (foo_->Mumble()) foo_ = 0; }
> Index: testsuite/g++.dg/lto/20081119-1_0.C
> ===================================================================
> *** testsuite/g++.dg/lto/20081119-1_0.C (revision 166582)
> --- testsuite/g++.dg/lto/20081119-1_0.C (working copy)
> ***************
> *** 1,5 ****
> ?/* { dg-lto-do link } */
> ! /* { dg-lto-options {{-fPIC -fwhopr -r -nostdlib}} } */
>
> ?#include "20081119-1.h"
>
> --- 1,5 ----
> ?/* { dg-lto-do link } */
> ! /* { dg-lto-options {{-fPIC -flto -flto-partition=1to1 -r -nostdlib}} } */
>
> ?#include "20081119-1.h"
>
> Index: testsuite/g++.dg/lto/20081118_0.C
> ===================================================================
> *** testsuite/g++.dg/lto/20081118_0.C ? (revision 166582)
> --- testsuite/g++.dg/lto/20081118_0.C ? (working copy)
> ***************
> *** 1,5 ****
> ?/* { dg-lto-do link } */
> ! /* { dg-lto-options {{-fPIC -fwhopr -r -nostdlib}} } */
>
> ?/* We used to ICE because of dangling pointers. ?*/
>
> --- 1,5 ----
> ?/* { dg-lto-do link } */
> ! /* { dg-lto-options {{-fPIC -flto -flto-partition=1to1 -r -nostdlib}} } */
>
> ?/* We used to ICE because of dangling pointers. ?*/
>
> Index: testsuite/g++.dg/20090121-1.C
> ===================================================================
> *** testsuite/g++.dg/20090121-1.C ? ? ? (revision 166582)
> --- testsuite/g++.dg/20090121-1.C ? ? ? (working copy)
> ***************
> *** 1,6 ****
> ?// { dg-do compile }
> ?// { dg-require-effective-target lto }
> ! // { dg-options "-fwhopr -Wuninitialized -O2" }
> ?class A
> ?{
> ?private:
> --- 1,6 ----
> ?// { dg-do compile }
> ?// { dg-require-effective-target lto }
> ! // { dg-options "-flto -Wuninitialized -O2" }
> ?class A
> ?{
> ?private:
> Index: testsuite/objc.dg/lto/lto.exp
> ===================================================================
> *** testsuite/objc.dg/lto/lto.exp ? ? ? (revision 166582)
> --- testsuite/objc.dg/lto/lto.exp ? ? ? (working copy)
> *************** if { ![check_effective_target_lto] } {
> *** 41,50 ****
> ?global LTO_OPTIONS
>
> ?set LTO_OPTIONS [list \
> ! ? {-O0 -fwhopr -fgnu-runtime} \
> ! ? {-O2 -fwhopr -fgnu-runtime} \
> ! ? {-O0 -flto -fgnu-runtime} ? \
> ? ?{-O2 -flto -fgnu-runtime} ? \
> ?]
>
> ?objc_init
> --- 41,50 ----
> ?global LTO_OPTIONS
>
> ?set LTO_OPTIONS [list \
> ! ? {-O0 -flto -fgnu-runtime} ? \
> ? ?{-O2 -flto -fgnu-runtime} ? \
> + ? {-O0 -flto -flto-partition=none -fgnu-runtime} ? ? ?\
> + ? {-O2 -flto -flto-partition=none -fgnu-runtime} ? ? ?\
> ?]
>
> ?objc_init
> *************** foreach src $tests {
> *** 67,76 ****
> ?# darwin targets can also run code with the NeXT runtime.
> ?if [istarget "*-*-darwin*" ] {
> ?set LTO_OPTIONS [list \
> ! ? {-O0 -fwhopr -fnext-runtime} ? ? ? ?\
> ! ? {-O2 -fwhopr -fnext-runtime} ? ? ? ?\
> ! ? {-O0 -flto -fnext-runtime} ?\
> ? ?{-O2 -flto -fnext-runtime} ?\
> ?]
> ? ?foreach src $tests {
> ? ? ?# If we're only testing specific files and this isn't one of them, skip it.
> --- 67,76 ----
> ?# darwin targets can also run code with the NeXT runtime.
> ?if [istarget "*-*-darwin*" ] {
> ?set LTO_OPTIONS [list \
> ! ? {-O0 -flto -fnext-runtime} ?\
> ? ?{-O2 -flto -fnext-runtime} ?\
> + ? {-O0 -flto -flto-partition=none -fnext-runtime} ? ? \
> + ? {-O2 -flto -flto-partition=none -fnext-runtime} ? ? \
> ?]
> ? ?foreach src $tests {
> ? ? ?# If we're only testing specific files and this isn't one of them, skip it.
> Index: testsuite/lib/lto.exp
> ===================================================================
> *** testsuite/lib/lto.exp ? ? ? (revision 166582)
> --- testsuite/lib/lto.exp ? ? ? (working copy)
> *************** proc lto_init { args } {
> *** 64,71 ****
> ? ? ?# add it to site.exp directly.
> ? ? ?if ![info exists LTO_OPTIONS] {
> ? ? ? ?set LTO_OPTIONS [list ? \
> ! ? ? ? ? ? {-O0 -fwhopr} ? ? ? \
> ! ? ? ? ? ? {-O2 -fwhopr} ? ? ? \
> ? ? ? ? ? ?{-O0 -flto} ? ? ? ? \
> ? ? ? ? ? ?{-O2 -flto} ? ? ? ? \
> ? ? ? ?]
> --- 64,73 ----
> ? ? ?# add it to site.exp directly.
> ? ? ?if ![info exists LTO_OPTIONS] {
> ? ? ? ?set LTO_OPTIONS [list ? \
> ! ? ? ? ? ? {-O0 -flto -flto-partition=none } \
> ! ? ? ? ? ? {-O2 -flto -flto-partition=none } \
> ! ? ? ? ? ? {-O0 -flto -flto-partition=1to1 } \
> ! ? ? ? ? ? {-O2 -flto -flto-partition=1to1 } \
> ? ? ? ? ? ?{-O0 -flto} ? ? ? ? \
> ? ? ? ? ? ?{-O2 -flto} ? ? ? ? \
> ? ? ? ?]
> Index: testsuite/lib/gcc-dg.exp
> ===================================================================
> *** testsuite/lib/gcc-dg.exp ? ?(revision 166582)
> --- testsuite/lib/gcc-dg.exp ? ?(working copy)
> *************** if [info exists ADDITIONAL_TORTURE_OPTIO
> *** 70,77 ****
> ?set LTO_TORTURE_OPTIONS ""
> ?if [check_effective_target_lto] {
> ? ? ?set LTO_TORTURE_OPTIONS [list \
> ! ? ? ? { -O2 -flto } \
> ! ? ? ? { -O2 -fwhopr }
> ? ? ?]
> ?}
>
> --- 70,77 ----
> ?set LTO_TORTURE_OPTIONS ""
> ?if [check_effective_target_lto] {
> ? ? ?set LTO_TORTURE_OPTIONS [list \
> ! ? ? ? { -O2 -flto -flto-partition=none } \
> ! ? ? ? { -O2 -flto }
> ? ? ?]
> ?}
>
> Index: testsuite/lib/c-torture.exp
> ===================================================================
> *** testsuite/lib/c-torture.exp (revision 166582)
> --- testsuite/lib/c-torture.exp (working copy)
> *************** if [info exists ADDITIONAL_TORTURE_OPTIO
> *** 53,60 ****
> ?set LTO_TORTURE_OPTIONS ""
> ?if [check_effective_target_lto] {
> ? ? ?set LTO_TORTURE_OPTIONS [list \
> ! ? ? ? { -O2 -flto } \
> ! ? ? ? { -O2 -fwhopr }
> ? ? ?]
> ?}
>
> --- 53,60 ----
> ?set LTO_TORTURE_OPTIONS ""
> ?if [check_effective_target_lto] {
> ? ? ?set LTO_TORTURE_OPTIONS [list \
> ! ? ? ? { -O2 -flto -flto-partition=none } \
> ! ? ? ? { -O2 -flto }
> ? ? ?]
> ?}
>
> Index: testsuite/obj-c++.dg/lto/lto.exp
> ===================================================================
> *** testsuite/obj-c++.dg/lto/lto.exp ? ?(revision 166582)
> --- testsuite/obj-c++.dg/lto/lto.exp ? ?(working copy)
> *************** if { ![check_effective_target_lto] } {
> *** 41,50 ****
> ?global LTO_OPTIONS
>
> ?set LTO_OPTIONS [list \
> ! ? {-O0 -fwhopr -fgnu-runtime} \
> ! ? {-O2 -fwhopr -fgnu-runtime} \
> ! ? {-O0 -flto -fgnu-runtime} ? \
> ? ?{-O2 -flto -fgnu-runtime} ? \
> ?]
>
> ?obj-c++_init
> --- 41,50 ----
> ?global LTO_OPTIONS
>
> ?set LTO_OPTIONS [list \
> ! ? {-O0 -flto -fgnu-runtime} ? \
> ? ?{-O2 -flto -fgnu-runtime} ? \
> + ? {-O0 -flto -flto-partition=none -fgnu-runtime} ? ? ?\
> + ? {-O2 -flto -flto-partition=none -fgnu-runtime} ? ? ?\
> ?]
>
> ?obj-c++_init
> *************** foreach src $tests {
> *** 67,76 ****
> ?# darwin targets can also run code with the NeXT runtime.
> ?if [istarget "*-*-darwin*" ] {
> ?set LTO_OPTIONS [list \
> ! ? {-O0 -fwhopr -fnext-runtime} ? ? ? ?\
> ! ? {-O2 -fwhopr -fnext-runtime} ? ? ? ?\
> ! ? {-O0 -flto -fnext-runtime} ?\
> ? ?{-O2 -flto -fnext-runtime} ?\
> ?]
> ? ?foreach src $tests {
> ? ? ?# If we're only testing specific files and this isn't one of them, skip it.
> --- 67,76 ----
> ?# darwin targets can also run code with the NeXT runtime.
> ?if [istarget "*-*-darwin*" ] {
> ?set LTO_OPTIONS [list \
> ! ? {-O0 -flto -fnext-runtime} ?\
> ? ?{-O2 -flto -fnext-runtime} ?\
> + ? {-O0 -flto -flto-partition=none -fnext-runtime} ? ? \
> + ? {-O2 -flto -flto-partition=none -fnext-runtime} ? ? \
> ?]
> ? ?foreach src $tests {
> ? ? ?# If we're only testing specific files and this isn't one of them, skip it.
> Index: lto-wrapper.c
> ===================================================================
> *** lto-wrapper.c ? ? ? (revision 166582)
> --- lto-wrapper.c ? ? ? (working copy)
> *************** along with GCC; see the file COPYING3.
> *** 32,38 ****
> ? ? The above will print something like
> ? ? /tmp/ccwbQ8B2.lto.o
>
> ! ? ?If -fwhopr is used instead, more than one file might be produced
> ? ? ./ccXj2DTk.lto.ltrans.o
> ? ? ./ccCJuXGv.lto.ltrans.o
> ?*/
> --- 32,38 ----
> ? ? The above will print something like
> ? ? /tmp/ccwbQ8B2.lto.o
>
> ! ? ?If WHOPR is used instead, more than one file might be produced
> ? ? ./ccXj2DTk.lto.ltrans.o
> ? ? ./ccCJuXGv.lto.ltrans.o
> ?*/
> *************** run_gcc (unsigned argc, char *argv[])
> *** 304,309 ****
> --- 304,310 ----
> ? ?bool seen_o = false;
> ? ?int parallel = 0;
> ? ?int jobserver = 0;
> + ? bool no_partition = false;
>
> ? ?/* Get the driver and options. ?*/
> ? ?collect_gcc = getenv ("COLLECT_GCC");
> *************** run_gcc (unsigned argc, char *argv[])
> *** 366,380 ****
> ? ? ? ?if (strcmp (option, "-v") == 0)
> ? ? ? ? ?verbose = 1;
>
> ? ? ? ?/* We've handled these LTO options, do not pass them on. ?*/
> ! ? ? ? if (strcmp (option, "-flto") == 0)
> ! ? ? ? ? lto_mode = LTO_MODE_LTO;
> ! ? ? ? else if (strncmp (option, "-fwhopr", 7) == 0)
> ? ? ? ? ?{
> ? ? ? ? ? ?lto_mode = LTO_MODE_WHOPR;
> ! ? ? ? ? ? if (option[7] == '=')
> ? ? ? ? ? ? ?{
> ! ? ? ? ? ? ? ? if (!strcmp (option + 8, "jobserver"))
> ? ? ? ? ? ? ? ? ?{
> ? ? ? ? ? ? ? ? ? ?jobserver = 1;
> ? ? ? ? ? ? ? ? ? ?parallel = 1;
> --- 367,382 ----
> ? ? ? ?if (strcmp (option, "-v") == 0)
> ? ? ? ? ?verbose = 1;
>
> + ? ? ? if (strcmp (option, "-flto-partition=none") == 0)
> + ? ? ? ? no_partition = true;
> ? ? ? ?/* We've handled these LTO options, do not pass them on. ?*/
> ! ? ? ? if (strncmp (option, "-flto=", 6) == 0
> ! ? ? ? ? ? || !strcmp (option, "-flto"))
> ? ? ? ? ?{
> ? ? ? ? ? ?lto_mode = LTO_MODE_WHOPR;
> ! ? ? ? ? ? if (option[5] == '=')
> ? ? ? ? ? ? ?{
> ! ? ? ? ? ? ? ? if (!strcmp (option + 6, "jobserver"))
> ? ? ? ? ? ? ? ? ?{
> ? ? ? ? ? ? ? ? ? ?jobserver = 1;
> ? ? ? ? ? ? ? ? ? ?parallel = 1;
> *************** run_gcc (unsigned argc, char *argv[])
> *** 390,395 ****
> --- 392,403 ----
> ? ? ? ?else
> ? ? ? ? ?*argv_ptr++ = option;
> ? ? ? ?}
> + ? if (no_partition)
> + ? ? {
> + ? ? ? lto_mode = LTO_MODE_LTO;
> + ? ? ? jobserver = 0;
> + ? ? ? parallel = 0;
> + ? ? }
>
> ? ?if (linker_output)
> ? ? ?{
> Index: opts.c
> ===================================================================
> *** opts.c ? ? ?(revision 166582)
> --- opts.c ? ? ?(working copy)
> *************** finish_options (struct gcc_options *opts
> *** 1218,1224 ****
> ? ? ? ?opts->x_flag_ipa_struct_reorg = 0;
> ? ? ?}
>
> ! ? if (opts->x_flag_lto || opts->x_flag_whopr)
> ? ? ?{
> ?#ifdef ENABLE_LTO
> ? ? ? ?opts->x_flag_generate_lto = 1;
> --- 1218,1224 ----
> ? ? ? ?opts->x_flag_ipa_struct_reorg = 0;
> ? ? ?}
>
> ! ? if (flag_whopr || opts->x_flag_lto)
> ? ? ?{
> ?#ifdef ENABLE_LTO
> ? ? ? ?opts->x_flag_generate_lto = 1;
> *************** finish_options (struct gcc_options *opts
> *** 1231,1249 ****
> ? ? ? ?error ("LTO support has not been enabled in this configuration");
> ?#endif
> ? ? ?}
> ! ? if (opts->x_flag_lto_partition_balanced || opts->x_flag_lto_partition_1to1)
> ? ? ?{
> ? ? ? ?if (opts->x_flag_lto_partition_balanced
> ? ? ? ? ?&& opts->x_flag_lto_partition_1to1)
> ? ? ? ?error ("only one -flto-partition value can be specified");
> ! ? ? ? if (!opts->x_flag_whopr && !opts->x_flag_wpa && !opts->x_flag_ltrans)
> ! ? ? ? error ("-flto-partition has no effect without -fwhopr");
> ? ? ?}
> !
> ! ? /* Reconcile -flto and -fwhopr. ?Set additional flags as appropriate and
> ! ? ? ?check option consistency. ?*/
> ! ? if (opts->x_flag_lto && opts->x_flag_whopr)
> ! ? ? error ("-flto and -fwhopr are mutually exclusive");
>
> ? ?/* We initialize opts->x_flag_split_stack to -1 so that targets can set a
> ? ? ? default value if they choose based on other options. ?*/
> --- 1231,1247 ----
> ? ? ? ?error ("LTO support has not been enabled in this configuration");
> ?#endif
> ? ? ?}
> ! ? if ((opts->x_flag_lto_partition_balanced != 0) + (opts->x_flag_lto_partition_1to1 != 0)
> ! ? ? ? ?+ (opts->x_flag_lto_partition_none != 0) > 1)
> ? ? ?{
> ? ? ? ?if (opts->x_flag_lto_partition_balanced
> ? ? ? ? ?&& opts->x_flag_lto_partition_1to1)
> ? ? ? ?error ("only one -flto-partition value can be specified");
> ! ? ? ? if (!opts->x_flag_lto && !opts->x_flag_wpa && !opts->x_flag_ltrans)
> ! ? ? ? error ("-flto-partition has no effect without -flto");
> ? ? ?}
> ! ? if (!flag_lto_partition_none && opts->x_flag_lto)
> ! ? ? ?opts->x_flag_lto = 0, flag_whopr = 1;
>
> ? ?/* We initialize opts->x_flag_split_stack to -1 so that targets can set a
> ? ? ? default value if they choose based on other options. ?*/
> *************** common_handle_option (struct gcc_options
> *** 2152,2159 ****
> ? ? ? ?dc->pedantic_errors = 1;
> ? ? ? ?break;
>
> ! ? ? case OPT_fwhopr:
> ! ? ? ? opts->x_flag_whopr = "";
> ? ? ? ?break;
>
> ? ? ?case OPT_w:
> --- 2150,2157 ----
> ? ? ? ?dc->pedantic_errors = 1;
> ? ? ? ?break;
>
> ! ? ? case OPT_flto:
> ! ? ? ? opts->x_flag_lto = "";
> ? ? ? ?break;
>
> ? ? ?case OPT_w:
> Index: common.opt
> ===================================================================
> *** common.opt ?(revision 166582)
> --- common.opt ?(working copy)
> *************** Common Ignore
> *** 1138,1146 ****
> ?Does nothing. ?Preserved for backward compatibility.
>
> ?flto
> ! Common Var(flag_lto)
> ?Enable link-time optimization.
>
> ?flto-partition=1to1
> ?Common Var(flag_lto_partition_1to1)
> ?Partition functions and vars at linktime based on object files they originate from
> --- 1138,1150 ----
> ?Does nothing. ?Preserved for backward compatibility.
>
> ?flto
> ! Common
> ?Enable link-time optimization.
>
> + flto=
> + Common RejectNegative Joined Var(flag_lto)
> + Link-time optimization with number of parallel jobs or jobserver.
> +
> ?flto-partition=1to1
> ?Common Var(flag_lto_partition_1to1)
> ?Partition functions and vars at linktime based on object files they originate from
> *************** flto-partition=balanced
> *** 1149,1154 ****
> --- 1153,1162 ----
> ?Common Var(flag_lto_partition_balanced)
> ?Partition functions and vars at linktime into approximately same sized buckets
>
> + flto-partition=none
> + Common Var(flag_lto_partition_none)
> + Disable partioning and streaming
> +
> ?; The initial value of -1 comes from Z_DEFAULT_COMPRESSION in zlib.h.
> ?flto-compression-level=
> ?Common Joined RejectNegative UInteger Var(flag_lto_compression_level) Init(-1)
> *************** fdse
> *** 1217,1222 ****
> --- 1225,1234 ----
> ?Common Var(flag_dse) Init(1) Optimization
> ?Use the RTL dead store elimination pass
>
> + freorder-functions
> + Common Report Var(flag_ipa_reorder) Init(1) Optimization
> + Reroder functions for better locality at execution time
> +
> ?freschedule-modulo-scheduled-loops
> ?Common Report Var(flag_resched_modulo_sched) Optimization
> ?Enable/Disable the traditional scheduling in loops that already passed modulo scheduling
> *************** fweb
> *** 1879,1892 ****
> ?Common Report Var(flag_web) Init(2) Optimization
> ?Construct webs and split unrelated uses of single variable
>
> - fwhopr
> - Common
> - Enable partitioned link-time optimization
> -
> - fwhopr=
> - Common RejectNegative Joined Var(flag_whopr)
> - Partitioned link-time optimization with number of parallel jobs or jobserver.
> -
> ?ftree-builtin-call-dce
> ?Common Report Var(flag_tree_builtin_call_dce) Init(0) Optimization
> ?Enable conditional dead code elimination for builtin calls
> --- 1891,1896 ----
> Index: collect2.c
> ===================================================================
> *** collect2.c ?(revision 166582)
> --- collect2.c ?(working copy)
> *************** main (int argc, char **argv)
> *** 1196,1216 ****
>
> ? ?/* Parse command line early for instances of -debug. ?This allows
> ? ? ? the debug flag to be set before functions like find_a_file()
> ! ? ? ?are called. ?We also look for the -flto or -fwhopr flag to know
> ? ? ? what LTO mode we are in. ?*/
> ? ?{
> ? ? ?int i;
>
> ? ? ?for (i = 1; argv[i] != NULL; i ++)
> ? ? ? ?{
> ? ? ? ?if (! strcmp (argv[i], "-debug"))
> ? ? ? ? ?debug = true;
> ! ? ? ? ? else if (! strcmp (argv[i], "-flto") && ! use_plugin)
> ! ? ? ? ? {
> ! ? ? ? ? ? use_verbose = true;
> ! ? ? ? ? ? lto_mode = LTO_MODE_LTO;
> ! ? ? ? ? }
> ! ? ? ? ? else if (! strncmp (argv[i], "-fwhopr", 7) && ! use_plugin)
> ? ? ? ? ?{
> ? ? ? ? ? ?use_verbose = true;
> ? ? ? ? ? ?lto_mode = LTO_MODE_WHOPR;
> --- 1196,1215 ----
>
> ? ?/* Parse command line early for instances of -debug. ?This allows
> ? ? ? the debug flag to be set before functions like find_a_file()
> ! ? ? ?are called. ?We also look for the -flto or -flto-partition=none flag to know
> ? ? ? what LTO mode we are in. ?*/
> ? ?{
> ? ? ?int i;
> + ? ? bool no_partition = false;
>
> ? ? ?for (i = 1; argv[i] != NULL; i ++)
> ? ? ? ?{
> ? ? ? ?if (! strcmp (argv[i], "-debug"))
> ? ? ? ? ?debug = true;
> ! ? ? ? ? else if (! strcmp (argv[i], "-flto-partition=none"))
> ! ? ? ? ? no_partition = true;
> ! ? ? ? ? else if ((! strncmp (argv[i], "-flto=", 6)
> ! ? ? ? ? ? ? ? ? || ! strcmp (argv[i], "-flto")) && ! use_plugin)
> ? ? ? ? ?{
> ? ? ? ? ? ?use_verbose = true;
> ? ? ? ? ? ?lto_mode = LTO_MODE_WHOPR;
> *************** main (int argc, char **argv)
> *** 1239,1244 ****
> --- 1238,1245 ----
> ?#endif
> ? ? ? ?}
> ? ? ?vflag = debug;
> + ? ? if (no_partition)
> + ? ? ? lto_mode = LTO_MODE_LTO;
> ? ?}
>
> ?#ifndef DEFAULT_A_OUT_NAME
> *************** main (int argc, char **argv)
> *** 1485,1492 ****
> ? ? ? ? ? ? ?break;
>
> ? ? ? ? ? ? ?case 'f':
> ! ? ? ? ? ? ? if (strcmp (arg, "-flto") == 0
> ! ? ? ? ? ? ? ? ? || strncmp (arg, "-fwhopr", 7) == 0)
> ? ? ? ? ? ? ? ?{
> ?#ifdef ENABLE_LTO
> ? ? ? ? ? ? ? ? ?/* Do not pass LTO flag to the linker. */
> --- 1486,1492 ----
> ? ? ? ? ? ? ?break;
>
> ? ? ? ? ? ? ?case 'f':
> ! ? ? ? ? ? ? if (strncmp (arg, "-flto", 5) == 0)
> ? ? ? ? ? ? ? ?{
> ?#ifdef ENABLE_LTO
> ? ? ? ? ? ? ? ? ?/* Do not pass LTO flag to the linker. */
>