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[Bug c/36370] Is the sse2 psrlq insn accessible ?
- From: "Emmanuel dot Thome at inria dot fr" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 29 May 2008 14:09:39 -0000
- Subject: [Bug c/36370] Is the sse2 psrlq insn accessible ?
- References: <bug-36370-717@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #4 from Emmanuel dot Thome at inria dot fr 2008-05-29 14:09 -------
This leaves the ICE problem in attachment 15700. Is my assembly constraint
bogus (in which case I'd prefer a nice diagnostic, as was the case in gcc
4.2.4, to an ICE) ? I tried three choices for the inline asm:
__asm__("psrlq %1,%0" : "+x,x"(x) : "x,m"(sh)); --> ICE
__asm__("psrlq %2,%0" : "=x,x"(x) : "0,0"(x), "x,m"(sh)); --> ICE
__asm__("psrlq %2,%0" : "+x,x"(x) : "0,0"(x), "x,m"(sh)); --> ok
But having + _and_ a back reference is superfluous, isn't it ?
E.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36370