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[Bug target/19530] MMX load intrinsic produces SSE superfluous instructions (movlps)
- From: "guardia at sympatico dot ca" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 27 Jan 2005 00:08:10 -0000
- Subject: [Bug target/19530] MMX load intrinsic produces SSE superfluous instructions (movlps)
- References: <20050119145614.19530.guardia@sympatico.ca>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From guardia at sympatico dot ca 2005-01-27 00:08 -------
Oh oh, I think I'm getting somewhere... if I use both -march=athlon and -msse
flags I get the "bad" code. Let me summarize this :
-march=pentium3 = bad
-msse = bad
-march=athlon = good (ie.: no weird movss or movlps, everything looks good)
however
-march=athlon -msse = bad
hum...
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19530