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[Bug rtl-optimization/42511] [4.5 Regression] bootstrap error in stage3 on alpha-linux-gnu
- From: "ubizjak at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 6 Jan 2010 18:14:20 -0000
- Subject: [Bug rtl-optimization/42511] [4.5 Regression] bootstrap error in stage3 on alpha-linux-gnu
- References: <bug-42511-5724@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #17 from ubizjak at gmail dot com 2010-01-06 18:14 -------
This bug is similar (or even a duplicate of) PR21767. ifcvt.c has a fixup code
for cases like this, grep ifcvt.c for:
/* PR 21767: When moving insns above a conditional branch, REG_EQUAL
notes might become invalid. */
So, let's analyse why this fixup doesn't trigger for attached testcase.
--
ubizjak at gmail dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
BugsThisDependsOn| |21767
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42511