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view test/CodeGen/X86/popcnt.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 1172e4bd9c6f
line wrap: on
line source

; RUN: llc -march=x86-64 -mattr=+popcnt < %s | FileCheck %s

define i8 @cnt8(i8 %x) nounwind readnone {
  %cnt = tail call i8 @llvm.ctpop.i8(i8 %x)
  ret i8 %cnt
; CHECK-LABEL: cnt8:
; CHECK: popcntw
; CHECK: ret
}

define i16 @cnt16(i16 %x) nounwind readnone {
  %cnt = tail call i16 @llvm.ctpop.i16(i16 %x)
  ret i16 %cnt
; CHECK-LABEL: cnt16:
; CHECK: popcntw
; CHECK: ret
}

define i32 @cnt32(i32 %x) nounwind readnone {
  %cnt = tail call i32 @llvm.ctpop.i32(i32 %x)
  ret i32 %cnt
; CHECK-LABEL: cnt32:
; CHECK: popcntl
; CHECK: ret
}

define i64 @cnt64(i64 %x) nounwind readnone {
  %cnt = tail call i64 @llvm.ctpop.i64(i64 %x)
  ret i64 %cnt
; CHECK-LABEL: cnt64:
; CHECK: popcntq
; CHECK: ret
}

declare i8 @llvm.ctpop.i8(i8) nounwind readnone
declare i16 @llvm.ctpop.i16(i16) nounwind readnone
declare i32 @llvm.ctpop.i32(i32) nounwind readnone
declare i64 @llvm.ctpop.i64(i64) nounwind readnone