llvm-for-llvmta/test/Analysis/BasicAA/2003-09-19-LocalArgument.ll

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2022-04-25 10:02:23 +02:00
; In this test, a local alloca cannot alias an incoming argument.
; RUN: opt < %s -basic-aa -gvn -instcombine -S | FileCheck %s
; CHECK: define i32 @test
; CHECK-NEXT: ret i32 0
define i32 @test(i32* %P) {
%X = alloca i32
%V1 = load i32, i32* %P
store i32 0, i32* %X
%V2 = load i32, i32* %P
%Diff = sub i32 %V1, %V2
ret i32 %Diff
}