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[Bug rtl-optimization/64037] [4.8/4.9/5 Regression] Miscompilation with -Os and enum class : char parameter
- From: "hjl at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sun, 14 Dec 2014 16:07:35 +0000
- Subject: [Bug rtl-optimization/64037] [4.8/4.9/5 Regression] Miscompilation with -Os and enum class : char parameter
- Auto-submitted: auto-generated
- References: <bug-64037-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64037
--- Comment #25 from hjl at gcc dot gnu.org <hjl at gcc dot gnu.org> ---
Author: hjl
Date: Sun Dec 14 16:07:03 2014
New Revision: 218721
URL: https://gcc.gnu.org/viewcvs?rev=218721&root=gcc&view=rev
Log:
Pass unpromoted argument to promote_function_mode
This patch updates setup_incoming_promotions in combine.c to match what
is actually passed in assign_parm_setup_reg in function.c.
Backported from mainline:
gcc/
PR rtl-optimization/64037
* combine.c (setup_incoming_promotions): Pass the argument
before any promotions happen to promote_function_mode.
gcc/testsuite/
PR rtl-optimization/64037
* g++.dg/pr64037.C: New test.
Added:
branches/gcc-4_9-branch/gcc/testsuite/g++.dg/pr64037.C
Modified:
branches/gcc-4_9-branch/gcc/ChangeLog
branches/gcc-4_9-branch/gcc/combine.c
branches/gcc-4_9-branch/gcc/testsuite/ChangeLog