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For x86, if sse2 is available, it's not a good idea since cvtss2sd is slower than a movsd load and it prevents load folding. On x87, it's important to shrink fp constant since fldt is very expensive. llvm-svn: 47931
8 lines
180 B
LLVM
8 lines
180 B
LLVM
; RUN: llvm-as < %s | llc -march=x86-64 -mattr=+sse2 | not grep cvtss2sd
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; PR1264
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define double @foo(double %x) {
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%y = mul double %x, 5.000000e-01
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ret double %y
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}
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