[Bug c/42682] floating point optimizations needlessly shuffle xmm registers

[matti dot aarnio--gcc-bugs at zmailer dot org]

------- Comment #1 from matti dot aarnio--gcc-bugs at zmailer dot org  2010-01-10 15:40 -------
Created an attachment (id=19530)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=19530&action=view)
example code showing  minss  related unnecessary temp registers

Compile command:  (on x86_64 machine with SSE2 instructions)

gcc -g -O9 -c -Xassembler -ahl minsamplefloat.c > minsamplefloat.lst


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42682