forked from OSchip/llvm-project
17 lines
531 B
LLVM
17 lines
531 B
LLVM
; RUN: opt < %s -basicaa -gvn -instcombine -S | FileCheck %s
|
|
; PR1600
|
|
|
|
declare i16 @llvm.cttz.i16(i16, i1)
|
|
|
|
define i32 @test(i32* %P, i16* %Q) {
|
|
; CHECK: ret i32 0
|
|
%A = load i16* %Q ; <i16> [#uses=1]
|
|
%x = load i32* %P ; <i32> [#uses=1]
|
|
%B = call i16 @llvm.cttz.i16( i16 %A, i1 true ) ; <i16> [#uses=1]
|
|
%y = load i32* %P ; <i32> [#uses=1]
|
|
store i16 %B, i16* %Q
|
|
%z = sub i32 %x, %y ; <i32> [#uses=1]
|
|
ret i32 %z
|
|
}
|
|
|