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[Bug bootstrap/53266] Error: Unrecognized opcode: `mulhwu'
- From: "skunk at iskunk dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 07 May 2012 17:42:43 +0000
- Subject: [Bug bootstrap/53266] Error: Unrecognized opcode: `mulhwu'
- Auto-submitted: auto-generated
- References: <bug-53266-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53266
--- Comment #2 from Daniel Richard G. <skunk at iskunk dot org> 2012-05-07 17:42:43 UTC ---
(In reply to comment #1)
> mulhwu is a powerpc but not rs6000 instruction.
When a file failed to compile, I noticed that specifying -mcpu=powerpc got
things going again. I'm not clear on how GCC distinguishes powerpc versus
rs6000, but as far as -mcpu is concerned, the former value seems to exclude
mulhwu.