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[Bug target/30961] [4.1/4.2/4.3 regression] redundant reg/mem stores/moves
- From: "hjl at lucon dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 8 Aug 2007 00:33:30 -0000
- Subject: [Bug target/30961] [4.1/4.2/4.3 regression] redundant reg/mem stores/moves
- References: <bug-30961-7667@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #29 from hjl at lucon dot org 2007-08-08 00:33 -------
With revision 85770, I got
[hjl@gnu-27 rrs]$ cat convert.s
.file "convert.c"
.text
.align 4
.p2align 4,,15
.globl convert4
.type convert4, @function
convert4:
movq %rdi, -8(%rsp)
movq %rdi, -16(%rsp)
movlpd -8(%rsp), %xmm0
ret
.size convert4, .-convert4
.ident "GCC: (GNU) 3.5.0 20040810 (experimental)"
.section .note.GNU-stack,"",@progbits
Remove the extra mvoq won't solve this regression.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30961