forked from OSchip/llvm-project
37 lines
1.1 KiB
LLVM
37 lines
1.1 KiB
LLVM
; RUN: opt < %s -basicaa -gvn -S | FileCheck %s
|
|
|
|
; PR15967
|
|
; BasicAA claims no alias when there is (due to a problem when the MaxLookup
|
|
; limit was reached).
|
|
|
|
target datalayout = "e"
|
|
|
|
%struct.foo = type { i32, i32 }
|
|
|
|
define i32 @main() {
|
|
%t = alloca %struct.foo, align 4
|
|
%1 = getelementptr inbounds %struct.foo, %struct.foo* %t, i32 0, i32 0
|
|
store i32 1, i32* %1, align 4
|
|
%2 = getelementptr inbounds %struct.foo, %struct.foo* %t, i64 1
|
|
%3 = bitcast %struct.foo* %2 to i8*
|
|
%4 = getelementptr inbounds i8, i8* %3, i32 -1
|
|
store i8 0, i8* %4
|
|
%5 = getelementptr inbounds i8, i8* %4, i32 -1
|
|
store i8 0, i8* %5
|
|
%6 = getelementptr inbounds i8, i8* %5, i32 -1
|
|
store i8 0, i8* %6
|
|
%7 = getelementptr inbounds i8, i8* %6, i32 -1
|
|
store i8 0, i8* %7
|
|
%8 = getelementptr inbounds i8, i8* %7, i32 -1
|
|
store i8 0, i8* %8
|
|
%9 = getelementptr inbounds i8, i8* %8, i32 -1
|
|
store i8 0, i8* %9
|
|
%10 = getelementptr inbounds i8, i8* %9, i32 -1
|
|
store i8 0, i8* %10
|
|
%11 = getelementptr inbounds i8, i8* %10, i32 -1
|
|
store i8 0, i8* %11
|
|
%12 = load i32, i32* %1, align 4
|
|
ret i32 %12
|
|
; CHECK: ret i32 %12
|
|
}
|