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; RUN: opt -passes=aa-eval -print-all-alias-modref-info -disable-output < %s 2>&1 | FileCheck %s
; CHECK: MayAlias: i8* %a, i8* %gep
define void @inttoptr_alloca() {
%a = alloca i8
%a.int = ptrtoint ptr %a to i64
%a.int.1 = add i64 %a.int, 1
%gep = getelementptr i8, ptr inttoptr (i64 -1 to ptr), i64 %a.int.1
%load = load i8, ptr %gep
store i8 1, ptr %a
ret void
}
; CHECK: MayAlias: i8* %a, i8* %gep
define void @inttoptr_alloca_unknown_relation(i64 %offset) {
%a = alloca i8
%a.int = ptrtoint ptr %a to i64
%gep = getelementptr i8, ptr inttoptr (i64 -1 to ptr), i64 %offset
%load = load i8, ptr %gep
store i8 1, ptr %a
ret void
}
; CHECK: NoAlias: i8* %a, i8* %gep
define void @inttoptr_alloca_noescape(i64 %offset) {
%a = alloca i8
%gep = getelementptr i8, ptr inttoptr (i64 -1 to ptr), i64 %offset
%load = load i8, ptr %gep
store i8 1, ptr %a
ret void
}
; CHECK: MayAlias: i8* %a, i8* %gep
define void @inttoptr_noalias(ptr noalias %a) {
%a.int = ptrtoint ptr %a to i64
%a.int.1 = add i64 %a.int, 1
%gep = getelementptr i8, ptr inttoptr (i64 -1 to ptr), i64 %a.int.1
%load = load i8, ptr %gep
store i8 1, ptr %a
ret void
}
; CHECK: NoAlias: i8* %a, i8* %gep
define void @inttoptr_noalias_noescape(ptr noalias %a, i64 %offset) {
%gep = getelementptr i8, ptr inttoptr (i64 -1 to ptr), i64 %offset
%load = load i8, ptr %gep
store i8 1, ptr %a
ret void
}
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