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d300622eba
Make the alignedload and alignedstore patterns always require 16-byte alignment. This way when they are used in the "Fs" instructions, in which a vector instruction is used for a scalar purpose, they can still require the full vector alignment. And add a regression test for this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40555 91177308-0d34-0410-b5e6-96231b3b80d8
15 lines
488 B
LLVM
15 lines
488 B
LLVM
; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse -enable-unsafe-fp-math | \
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; RUN: grep -v sp | grep xorps | wc -l | grep 2
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; Don't fold the incoming stack arguments into the xorps instructions used
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; to do floating-point negations, because the arguments aren't vectors
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; and aren't vector-aligned.
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define void @foo(float* %p, float* %q, float %s, float %y) {
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%ss = sub float -0.0, %s
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%yy = sub float -0.0, %y
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store float %ss, float* %p
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store float %yy, float* %q
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ret void
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}
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