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27 lines
658 B
LLVM
27 lines
658 B
LLVM
; RUN: llc < %s -march=x86 | grep bsr | count 2
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; RUN: llc < %s -march=x86 | grep bsf
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; RUN: llc < %s -march=x86 | grep cmov | count 3
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define i32 @t1(i32 %x) nounwind {
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%tmp = tail call i32 @llvm.ctlz.i32( i32 %x )
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ret i32 %tmp
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}
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declare i32 @llvm.ctlz.i32(i32) nounwind readnone
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define i32 @t2(i32 %x) nounwind {
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%tmp = tail call i32 @llvm.cttz.i32( i32 %x )
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ret i32 %tmp
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}
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declare i32 @llvm.cttz.i32(i32) nounwind readnone
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define i16 @t3(i16 %x, i16 %y) nounwind {
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entry:
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%tmp1 = add i16 %x, %y
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%tmp2 = tail call i16 @llvm.ctlz.i16( i16 %tmp1 ) ; <i16> [#uses=1]
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ret i16 %tmp2
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}
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declare i16 @llvm.ctlz.i16(i16) nounwind readnone
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