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[Bug rtl-optimization/51667] [4.7 Regression] new FAIL: 27_io/basic_*stream/* execution test with -m32
- From: "ubizjak at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sat, 24 Dec 2011 12:46:38 +0000
- Subject: [Bug rtl-optimization/51667] [4.7 Regression] new FAIL: 27_io/basic_*stream/* execution test with -m32
- Auto-submitted: auto-generated
- References: <bug-51667-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51667
--- Comment #10 from Uros Bizjak <ubizjak at gmail dot com> 2011-12-24 12:46:38 UTC ---
The problem is illustrated in the second code dump of Comment #7. The second
movzwl can be merged with the first one, but we still need movswl to correctly
extend the HImode value to SImode.