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[Bug rtl-optimization/51924] [4.7 Regression] wrong code with -O -free -fno-rename-registers -ftree-vectorize -funroll-loops
- From: "zsojka at seznam dot cz" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 20 Jan 2012 21:00:21 +0000
- Subject: [Bug rtl-optimization/51924] [4.7 Regression] wrong code with -O -free -fno-rename-registers -ftree-vectorize -funroll-loops
- Auto-submitted: auto-generated
- References: <bug-51924-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51924
--- Comment #1 from Zdenek Sojka <zsojka at seznam dot cz> 2012-01-20 21:00:21 UTC ---
> With -free (top), the value is extended r10d -> rax (where only r10b is valid -
it is missing the r10b->r10d step)
The value is just moved from r10, not extended from r10d, but the effect is the
same...