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[Bug rtl-optimization/48455] [4.7 Regression] Huge code size regression for all ARM configurations
- From: "rearnsha at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 8 Apr 2011 13:02:02 +0000
- Subject: [Bug rtl-optimization/48455] [4.7 Regression] Huge code size regression for all ARM configurations
- Auto-submitted: auto-generated
- References: <bug-48455-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48455
--- Comment #5 from Richard Earnshaw <rearnsha at gcc dot gnu.org> 2011-04-08 13:01:41 UTC ---
Created attachment 23928
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23928
second testcase
Compile with -Os -mcpu=arm7tdmi -marm -fno-short-enums
Note, it looks like a common problem in compiling this file is that the
compiler has created a CSE of SP+const which now needs another call-saved reg,
rather than re-materializing the value on each use.