34 lines
700 B
LLVM
34 lines
700 B
LLVM
; RUN: llc < %s -march=x86 -mcpu=yonah | FileCheck %s
|
|
|
|
define i32 @t1(i32 %x) nounwind {
|
|
%tmp = tail call i32 @llvm.ctlz.i32( i32 %x )
|
|
ret i32 %tmp
|
|
; CHECK: t1:
|
|
; CHECK: bsrl
|
|
; CHECK: cmov
|
|
}
|
|
|
|
declare i32 @llvm.ctlz.i32(i32) nounwind readnone
|
|
|
|
define i32 @t2(i32 %x) nounwind {
|
|
%tmp = tail call i32 @llvm.cttz.i32( i32 %x )
|
|
ret i32 %tmp
|
|
; CHECK: t2:
|
|
; CHECK: bsfl
|
|
; CHECK: cmov
|
|
}
|
|
|
|
declare i32 @llvm.cttz.i32(i32) nounwind readnone
|
|
|
|
define i16 @t3(i16 %x, i16 %y) nounwind {
|
|
entry:
|
|
%tmp1 = add i16 %x, %y
|
|
%tmp2 = tail call i16 @llvm.ctlz.i16( i16 %tmp1 ) ; <i16> [#uses=1]
|
|
ret i16 %tmp2
|
|
; CHECK: t3:
|
|
; CHECK: bsrw
|
|
; CHECK: cmov
|
|
}
|
|
|
|
declare i16 @llvm.ctlz.i16(i16) nounwind readnone
|