[Bug ipa/86395] add support of -fopt-info-inline in inliner

[dmalcolm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86395

--- Comment #5 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
Author: dmalcolm
Date: Thu Nov  8 15:38:30 2018
New Revision: 265920

URL: https://gcc.gnu.org/viewcvs?rev=265920&root=gcc&view=rev
Log:
ipa-inline.c/tree-inline.c: port from fprintf to dump API (PR ipa/86395)

This patch ports various fprintf calls in the inlining code to using
the dump API, using the %C format code for printing cgraph_node *.
I focussed on the dump messages that seemed most significant to
end-users; I didn't port all of the calls.

Doing so makes this information appear in -fopt-info and in
optimization records, rather than just in the dump_file.

It also changes the affected dumpfile-dumps from being unconditional
(assuming the dump_file is enabled) to being guarded by the MSG_*
status.  Hence various tests with dg-final scan-*-dump directives
need to gain "-all" or "-optimized" suffixes to -fdump-ipa-inline.

The use of %C throughout also slightly changes the dump format for
several messages, e.g. changing:

 Inlining void inline_me(char*) into int main(int, char**).

to:

../../src/gcc/testsuite/g++.dg/tree-ssa/inline-1.C:13:8: optimized:  Inlining
void inline_me(char*)/0 into int main(int, char**)/2.

amongst other things adding "/order" suffixes to the cgraph node
names.

gcc/ChangeLog:
        PR ipa/86395
        * doc/invoke.texi (-fdump-ipa-): Document the "-optimized",
        "-missed", "-note", and "-all" sub-options.
        * ipa-inline.c (caller_growth_limits): Port from fprintf to dump
        API.
        (can_early_inline_edge_p): Likewise.
        (want_early_inline_function_p): Likewise.
        (want_inline_self_recursive_call_p): Likewise.
        (recursive_inlining): Likewise.
        (inline_small_functions): Likewise.
        (flatten_function): Likewise.
        (ipa_inline): Likewise.
        (inline_always_inline_functions): Likewise.
        (early_inline_small_functions): Likewise.
        (early_inliner): Likewise.
        * tree-inline.c (expand_call_inline): Likewise.

gcc/testsuite/ChangeLog:
        PR ipa/86395
        * g++.dg/ipa/devirt-12.C: Add "-all" suffix to
        "-fdump-ipa-inline".
        * g++.dg/ipa/imm-devirt-1.C: Add "-optimized" suffix to
        "-fdump-tree-einline".
        * g++.dg/tree-prof/inline_mismatch_args.C: Add "-all" suffix to
        "-fdump-tree-einline".
        * g++.dg/tree-ssa/inline-1.C: Add "-optimized" suffix to
        "-fdump-tree-einline".
        * g++.dg/tree-ssa/inline-2.C: Likewise.
        * g++.dg/tree-ssa/inline-3.C: Likewise.
        * g++.dg/tree-ssa/inline-4.C: New test, based on inline-1.C, but
        using "-fopt-info-inline".
        * gcc.dg/ipa/fopt-info-inline-1.c: New test.
        * gcc.dg/ipa/inline-4.c:  Add "-all" suffix to
        "-fdump-ipa-inline".  Add "-fopt-info-inline" and dg-optimized
        directive.
        * gcc.dg/ipa/inline-7.c: Add "-optimized" suffix to
        "-fdump-tree-einline".  Add "-fopt-info-inline" and dg-optimized
        directive.  Update scan-tree-dump-times to reflect /order
        suffixes.
        * gcc.dg/ipa/inlinehint-4.c: Update scan-tree-dump-times to
        reflect /order suffixes.
        * gcc.dg/plugin/dump-1.c: Add "-loop" to "-fopt-info-note" to
        avoid getting extra messages from inliner.
        * gcc.dg/plugin/dump-2.c: Likewise.
        * gcc.dg/pr26570.c: Add dg-prune-output to ignore new
        "function body not available" missed optimization messages.
        * gcc.dg/pr71969-2.c: Update scan-tree-dump-times to reflect
        /order suffixes.
        * gcc.dg/pr71969-3.c: Likewise.
        * gcc.dg/tree-ssa/inline-11.c: Add "-all" suffix to
        "-fdump-tree-einline".
        * gcc.dg/tree-ssa/inline-3.c: Add "-optimized" suffix to
        "-fdump-tree-einline".  Update scan-tree-dump-times to reflect
        /order suffixes.
        * gcc.dg/tree-ssa/inline-4.c: Add "-optimized" suffix to
        "-fdump-tree-einline".  Add "-fopt-info-inline" and dg-optimized
        directive.
        * gcc.dg/tree-ssa/inline-8.c: Add "-optimized" suffix to
        "-fdump-tree-einline".
        * gfortran.dg/pr79966.f90: Update scan-ipa-dump to reflect /order
        suffixes.


Added:
    trunk/gcc/testsuite/g++.dg/tree-ssa/inline-4.C
    trunk/gcc/testsuite/gcc.dg/ipa/fopt-info-inline-1.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/doc/invoke.texi
    trunk/gcc/ipa-inline.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/g++.dg/ipa/devirt-12.C
    trunk/gcc/testsuite/g++.dg/ipa/imm-devirt-1.C
    trunk/gcc/testsuite/g++.dg/tree-prof/inline_mismatch_args.C
    trunk/gcc/testsuite/g++.dg/tree-ssa/inline-1.C
    trunk/gcc/testsuite/g++.dg/tree-ssa/inline-2.C
    trunk/gcc/testsuite/g++.dg/tree-ssa/inline-3.C
    trunk/gcc/testsuite/gcc.dg/ipa/inline-4.c
    trunk/gcc/testsuite/gcc.dg/ipa/inline-7.c
    trunk/gcc/testsuite/gcc.dg/ipa/inlinehint-4.c
    trunk/gcc/testsuite/gcc.dg/plugin/dump-1.c
    trunk/gcc/testsuite/gcc.dg/plugin/dump-2.c
    trunk/gcc/testsuite/gcc.dg/pr26570.c
    trunk/gcc/testsuite/gcc.dg/pr71969-2.c
    trunk/gcc/testsuite/gcc.dg/pr71969-3.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/inline-11.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/inline-3.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/inline-4.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/inline-8.c
    trunk/gcc/testsuite/gfortran.dg/pr79966.f90
    trunk/gcc/tree-inline.c