llvm-6502/test/Analysis/BasicAA/2007-08-05-GetOverloadedModRef.ll

18 lines
549 B
LLVM

; PR1600
; RUN: llvm-as < %s | opt -basicaa -load-vn -gcse -instcombine | llvm-dis | \
; RUN: grep {ret i32 0}
; END.
declare i16 @llvm.cttz.i16(i16)
define i32 @test(i32* %P, i16* %Q) {
%A = load i16* %Q ; <i16> [#uses=1]
%x = load i32* %P ; <i32> [#uses=1]
%B = call i16 @llvm.cttz.i16( i16 %A ) ; <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
}