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[Bug inline-asm/30505] [4.2 regression] asm operand has impossible constraints.
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 18 Jan 2007 22:40:21 -0000
- Subject: [Bug inline-asm/30505] [4.2 regression] asm operand has impossible constraints.
- References: <bug-30505-7667@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #1 from pinskia at gcc dot gnu dot org 2007-01-18 22:40 -------
I think the problem is that we don't combine
(subreg:SI (reg:DI 63) 0)
with
(insn 11 10 12 2 (parallel [
(set (reg:DI 63)
(lshiftrt:DI (reg:DI 61 [ dividend.0 ])
(const_int 32 [0x20])))
(clobber (reg:CC 17 flags))
]) 322 {*lshrdi3_1} (insn_list:REG_DEP_TRUE 10 (nil))
(expr_list:REG_UNUSED (reg:CC 17 flags)
(nil)))
into:
(subreg:SI (reg:DI 63) 4)
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30505