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https://github.com/c64scene-ar/llvm-6502.git
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d7d003c2b7
Machine CSE and other optimizations can remove instructions so folding is possible at peephole while not possible at ISel. This patch is a rework of r160919 and was tested on clang self-host on my local machine. rdar://10554090 and rdar://11873276 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161152 91177308-0d34-0410-b5e6-96231b3b80d8
44 lines
966 B
LLVM
44 lines
966 B
LLVM
; RUN: llc < %s -march=x86 -mcpu=yonah -mtriple=i386-apple-darwin | FileCheck %s
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define <4 x i32> @test1(<4 x i32> %A, <4 x i32> %B) nounwind {
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; CHECK: test1:
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; CHECK: pcmpgtd
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; CHECK: ret
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%C = icmp sgt <4 x i32> %A, %B
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%D = sext <4 x i1> %C to <4 x i32>
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ret <4 x i32> %D
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}
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define <4 x i32> @test2(<4 x i32> %A, <4 x i32> %B) nounwind {
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; CHECK: test2:
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; CHECK: pcmp
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; CHECK: pxor LCP
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; CHECK: movdqa
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; CHECK: ret
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%C = icmp sge <4 x i32> %A, %B
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%D = sext <4 x i1> %C to <4 x i32>
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ret <4 x i32> %D
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}
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define <4 x i32> @test3(<4 x i32> %A, <4 x i32> %B) nounwind {
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; CHECK: test3:
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; CHECK: pcmpgtd
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; CHECK: movdqa
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; CHECK: ret
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%C = icmp slt <4 x i32> %A, %B
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%D = sext <4 x i1> %C to <4 x i32>
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ret <4 x i32> %D
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}
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define <4 x i32> @test4(<4 x i32> %A, <4 x i32> %B) nounwind {
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; CHECK: test4:
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; CHECK: movdqa
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; CHECK: pcmpgtd
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; CHECK: ret
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%C = icmp ugt <4 x i32> %A, %B
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%D = sext <4 x i1> %C to <4 x i32>
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ret <4 x i32> %D
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}
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