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[Bug rtl-optimization/23812] swapping DImode halves produces poor x86 register allocation
- From: "ian at airs dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 7 Feb 2006 08:31:46 -0000
- Subject: [Bug rtl-optimization/23812] swapping DImode halves produces poor x86 register allocation
- References: <bug-23812-11337@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #4 from ian at airs dot com 2006-02-07 08:31 -------
With my current set of subreg patches, for this test case with -O2
-momit-leaf-frame-pointer, I get this:
foo:
movl 4(%esp), %edx
movl 8(%esp), %eax
ret
which I suspect is optimal.
--
ian at airs dot com changed:
What |Removed |Added
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CC| |ian at airs dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23812