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ae3a0be92e
integer and floating-point opcodes, introducing FAdd, FSub, and FMul. For now, the AsmParser, BitcodeReader, and IRBuilder all preserve backwards compatability, and the Core LLVM APIs preserve backwards compatibility for IR producers. Most front-ends won't need to change immediately. This implements the first step of the plan outlined here: http://nondot.org/sabre/LLVMNotes/IntegerOverflow.txt git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72897 91177308-0d34-0410-b5e6-96231b3b80d8
15 lines
484 B
LLVM
15 lines
484 B
LLVM
; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse2 -enable-unsafe-fp-math | \
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; RUN: grep -v sp | grep xorps | count 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 = fsub float -0.0, %s
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%yy = fsub 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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