[patch, driver] Ignore -ftree-parallelize-loops={0,1}
Thomas Schwinge
thomas@codesourcery.com
Thu Mar 17 16:28:00 GMT 2016
Hi!
On Tue, 14 Jul 2015 10:36:25 +0200, Tom de Vries <Tom_deVries@mentor.com> wrote:
> On 14/07/15 06:54, Jeff Law wrote:
> > On 07/13/2015 04:58 AM, Tom de Vries wrote:
> >> On 07/07/15 09:53, Tom de Vries wrote:
> >>> currently, we have these spec strings in gcc/gcc.c involving
> >>> ftree-parallelize-loops:
> >>> ...
> >>> %{fopenacc|fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)}
> >>>
> >>>
> >>>
> >>> %{fopenacc|fopenmp|ftree-parallelize-loops=*:-pthread}"
> >>> ...
> >>>
> >>> Actually, ftree-parallelize-loops={0,1} means that no parallelization is
> >>> done, but these spec strings still get activated for these values.
> >>>
> >>>
> >>> Attached patch fixes that, by introducing a spec function gt (short for
> >>> greather than), and using it in the spec lines.
> Committed the patch using the gt function, as attached (formatting
> fixed, ChangeLog entry added).
> Ignore -ftree-parallelize-loops={0,1} using gt
>
> 2015-07-14 Tom de Vries <tom@codesourcery.com>
>
> * gcc.c (greater_than_spec_func): Declare forward.
> (LINK_COMMAND_SPEC, GOMP_SELF_SPECS): Use gt to ignore
> -ftree-parallelize-loops={0,1}.
> (static_spec_functions): Add greater_than_spec_func function with name
> "gt".
> (greater_than_spec_func): New function.
I recently noticed that this change failed to update the instances of
ftree-parallelize-loops in other spec strings. I can't easily test my
proposed changes, but I just mechanically changed
"ftree-parallelize-loops=*" to "%:gt(%{ftree-parallelize-loops=*:%*} 1)"
(which is the spelling to use after Jakub's "[PATCH] Fix driver handling
of multiple -ftree-parallelize-loops=<n> options (PR driver/69805)",
<http://news.gmane.org/find-root.php?message_id=%3C20160216152439.GT3017%40tucnak.redhat.com%3E>).
OK to commit?
commit df7d7943ae64f6df74d360e71f7c495c78647fda
Author: Thomas Schwinge <thomas@codesourcery.com>
Date: Thu Mar 17 17:17:36 2016 +0100
Complete changes to "Ignore -ftree-parallelize-loops={0,1} using gt"
Apply the r225764 and r233573 changes to all relevant spec strings.
gcc/
* config/arc/arc.h (LINK_COMMAND_SPEC): Use gt to ignore
-ftree-parallelize-loops={0,1}.
* config/darwin.h (LINK_COMMAND_SPEC_A): Likewise.
* config/i386/mingw32.h (GOMP_SELF_SPECS): Likewise.
* config/ia64/hpux.h (LIB_SPEC): Likewise.
* config/pa/pa-hpux11.h (LIB_SPEC): Likewise.
* config/pa/pa64-hpux.h (LIB_SPEC): Likewise.
---
gcc/config/arc/arc.h | 3 ++-
gcc/config/darwin.h | 2 +-
gcc/config/i386/mingw32.h | 2 +-
gcc/config/ia64/hpux.h | 2 +-
gcc/config/pa/pa-hpux11.h | 2 +-
gcc/config/pa/pa64-hpux.h | 12 ++++++------
6 files changed, 12 insertions(+), 11 deletions(-)
diff --git gcc/config/arc/arc.h gcc/config/arc/arc.h
index 21c049f..1c2a38d 100644
--- gcc/config/arc/arc.h
+++ gcc/config/arc/arc.h
@@ -188,7 +188,8 @@ along with GCC; see the file COPYING3. If not see
%(linker) %l " LINK_PIE_SPEC "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
%{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
%{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
- %{fopenacc|fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)}\
+ %{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):\
+ %:include(libgomp.spec)%(link_gomp)}\
%(mflib)\
%{fprofile-arcs|fprofile-generate|coverage:-lgcov}\
%{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
diff --git gcc/config/darwin.h gcc/config/darwin.h
index 9f686d3..c9981b8 100644
--- gcc/config/darwin.h
+++ gcc/config/darwin.h
@@ -177,7 +177,7 @@ extern GTY(()) int darwin_ms_struct;
%{o*}%{!o:-o a.out} \
%{!nostdlib:%{!nostartfiles:%S}} \
%{L*} %(link_libgcc) %o %{fprofile-arcs|fprofile-generate*|coverage:-lgcov} \
- %{fopenacc|fopenmp|ftree-parallelize-loops=*: \
+ %{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1): \
%{static|static-libgcc|static-libstdc++|static-libgfortran: libgomp.a%s; : -lgomp } } \
%{fgnu-tm: \
%{static|static-libgcc|static-libstdc++|static-libgfortran: libitm.a%s; : -litm } } \
diff --git gcc/config/i386/mingw32.h gcc/config/i386/mingw32.h
index 4ac5f68..e048189 100644
--- gcc/config/i386/mingw32.h
+++ gcc/config/i386/mingw32.h
@@ -207,7 +207,7 @@ do { \
/* mingw32 uses the -mthreads option to enable thread support. */
#undef GOMP_SELF_SPECS
-#define GOMP_SELF_SPECS "%{fopenacc|fopenmp|ftree-parallelize-loops=*: " \
+#define GOMP_SELF_SPECS "%{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1): " \
"-mthreads -pthread}"
#undef GTM_SELF_SPECS
#define GTM_SELF_SPECS "%{fgnu-tm:-mthreads -pthread}"
diff --git gcc/config/ia64/hpux.h gcc/config/ia64/hpux.h
index 8b90c99..008c4f6 100644
--- gcc/config/ia64/hpux.h
+++ gcc/config/ia64/hpux.h
@@ -92,7 +92,7 @@ do { \
#undef LIB_SPEC
#define LIB_SPEC \
"%{!shared: \
- %{mt|pthread:%{fopenacc|fopenmp|ftree-parallelize-loops=*:-lrt} -lpthread} \
+ %{mt|pthread:%{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):-lrt} -lpthread} \
%{p:%{!mlp64:-L/usr/lib/hpux32/libp} \
%{mlp64:-L/usr/lib/hpux64/libp} -lprof} \
%{pg:%{!mlp64:-L/usr/lib/hpux32/libp} \
diff --git gcc/config/pa/pa-hpux11.h gcc/config/pa/pa-hpux11.h
index 3e5207a..600b677 100644
--- gcc/config/pa/pa-hpux11.h
+++ gcc/config/pa/pa-hpux11.h
@@ -147,7 +147,7 @@ along with GCC; see the file COPYING3. If not see
#undef LIB_SPEC
#define LIB_SPEC \
"%{!shared:\
- %{fopenacc|fopenmp|ftree-parallelize-loops=*:\
+ %{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):\
%{static:-a archive_shared} -lrt %{static:-a archive}}\
%{mt|pthread:-lpthread} -lc\
%{static:%{!nolibdld:-a archive_shared -ldld -a archive -lc}\
diff --git gcc/config/pa/pa64-hpux.h gcc/config/pa/pa64-hpux.h
index a5ccb4a..279406a 100644
--- gcc/config/pa/pa64-hpux.h
+++ gcc/config/pa/pa64-hpux.h
@@ -58,21 +58,21 @@ along with GCC; see the file COPYING3. If not see
#if ((TARGET_DEFAULT | TARGET_CPU_DEFAULT) & MASK_GNU_LD)
#define LIB_SPEC \
"%{!shared:\
- %{!p:%{!pg:%{fopenacc|fopenmp|ftree-parallelize-loops=*:\
+ %{!p:%{!pg:%{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):\
%{static:-a shared} -lrt %{static:-a archive}}\
%{mt|pthread:-lpthread} -lc\
%{static:%{!nolibdld:-a shared -ldld -a archive -lc}\
%{!mt:%{!pthread:-a shared -lc -a archive}}}}}\
%{p:%{!pg:%{static:%{!mhp-ld:-a shared}%{mhp-ld:-a archive_shared}}\
-lprof %{static:-a archive}\
- %{fopenacc|fopenmp|ftree-parallelize-loops=*:\
+ %{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):\
%{static:-a shared} -lrt %{static:-a archive}}\
%{mt|pthread:-lpthread} -lc\
%{static:%{!nolibdld:-a shared -ldld -a archive -lc}\
%{!mt:%{!pthread:-a shared -lc -a archive}}}}}\
%{pg:%{static:%{!mhp-ld:-a shared}%{mhp-ld:-a archive_shared}}\
-lgprof %{static:-a archive}\
- %{fopenacc|fopenmp|ftree-parallelize-loops=*:\
+ %{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):\
%{static:-a shared} -lrt %{static:-a archive}}\
%{mt|pthread:-lpthread} -lc\
%{static:%{!nolibdld:-a shared -ldld -a archive -lc}\
@@ -81,21 +81,21 @@ along with GCC; see the file COPYING3. If not see
#else
#define LIB_SPEC \
"%{!shared:\
- %{!p:%{!pg:%{fopenacc|fopenmp|ftree-parallelize-loops=*:\
+ %{!p:%{!pg:%{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):\
%{static:-a shared} -lrt %{static:-a archive}}\
%{mt|pthread:-lpthread} -lc\
%{static:%{!nolibdld:-a shared -ldld -a archive -lc}\
%{!mt:%{!pthread:-a shared -lc -a archive}}}}}\
%{p:%{!pg:%{static:%{mgnu-ld:-a shared}%{!mgnu-ld:-a archive_shared}}\
-lprof %{static:-a archive}\
- %{fopenacc|fopenmp|ftree-parallelize-loops=*:\
+ %{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):\
%{static:-a shared} -lrt %{static:-a archive}}\
%{mt|pthread:-lpthread} -lc\
%{static:%{!nolibdld:-a shared -ldld -a archive -lc}\
%{!mt:%{!pthread:-a shared -lc -a archive}}}}}\
%{pg:%{static:%{mgnu-ld:-a shared}%{!mgnu-ld:-a archive_shared}}\
-lgprof %{static:-a archive}\
- %{fopenacc|fopenmp|ftree-parallelize-loops=*:\
+ %{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):\
%{static:-a shared} -lrt %{static:-a archive}}\
%{mt|pthread:-lpthread} -lc\
%{static:%{!nolibdld:-a shared -ldld -a archive -lc}\
Grüße
Thomas
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