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view test/CodeGen/Mips/2010-11-09-CountLeading.ll @ 33:e4204d083e25

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LLVM 3.5
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Thu, 12 Dec 2013 14:32:10 +0900
parents 95c75e76d11b
children
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; RUN: llc -march=mips < %s | FileCheck %s

; CHECK: clz $2, $4
define i32 @t1(i32 %X) nounwind readnone {
entry:
  %tmp1 = tail call i32 @llvm.ctlz.i32(i32 %X, i1 true)
  ret i32 %tmp1
}

declare i32 @llvm.ctlz.i32(i32, i1) nounwind readnone

; CHECK: clz $2, $4
define i32 @t2(i32 %X) nounwind readnone {
entry:
  %tmp1 = tail call i32 @llvm.ctlz.i32(i32 %X, i1 true)
  ret i32 %tmp1
}

; CHECK: clo $2, $4
define i32 @t3(i32 %X) nounwind readnone {
entry:
  %neg = xor i32 %X, -1
  %tmp1 = tail call i32 @llvm.ctlz.i32(i32 %neg, i1 true)
  ret i32 %tmp1
}

; CHECK: clo $2, $4
define i32 @t4(i32 %X) nounwind readnone {
entry:
  %neg = xor i32 %X, -1
  %tmp1 = tail call i32 @llvm.ctlz.i32(i32 %neg, i1 true)
  ret i32 %tmp1
}