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[Bug target/61578] [4.9 regression] Code size increase for ARM thumb compared to 4.8.x when compiling with -Os
- From: "vogt at linux dot vnet.ibm.com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 25 Sep 2015 09:12:46 +0000
- Subject: [Bug target/61578] [4.9 regression] Code size increase for ARM thumb compared to 4.8.x when compiling with -Os
- Auto-submitted: auto-generated
- References: <bug-61578-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61578
--- Comment #32 from Dominik Vogt <vogt at linux dot vnet.ibm.com> ---
Update: We've stepped through the code with gdb and noticed that the change in
lra-lives.c has nothing to do with our observations. The new condition there
is never executed, so it must be just the change in match_reload().