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; RUN: opt -passes=gvn -S < %s | FileCheck %s
define i32 @test1(ptr %p, ptr %q) {
; CHECK-LABEL: @test1(ptr %p, ptr %q)
; CHECK: load i32, ptr %p
; CHECK-NOT: noalias
; CHECK: %c = add i32 %a, %a
%a = load i32, ptr %p, !noalias !3
%b = load i32, ptr %p
%c = add i32 %a, %b
ret i32 %c
}
define i32 @test2(ptr %p, ptr %q) {
; CHECK-LABEL: @test2(ptr %p, ptr %q)
; CHECK: load i32, ptr %p, align 4, !alias.scope ![[SCOPE1:[0-9]+]]
; CHECK: %c = add i32 %a, %a
%a = load i32, ptr %p, !alias.scope !3
%b = load i32, ptr %p, !alias.scope !3
%c = add i32 %a, %b
ret i32 %c
}
define i32 @test3(ptr %p, ptr %q) {
; CHECK-LABEL: @test3(ptr %p, ptr %q)
; CHECK: load i32, ptr %p, align 4, !alias.scope ![[SCOPE2:[0-9]+]]
; CHECK: %c = add i32 %a, %a
%a = load i32, ptr %p, !alias.scope !4
%b = load i32, ptr %p, !alias.scope !5
%c = add i32 %a, %b
ret i32 %c
}
; CHECK: ![[SCOPE1]] = !{!{{[0-9]+}}}
; CHECK: ![[SCOPE2]] = !{!{{[0-9]+}}, !{{[0-9]+}}}
declare i32 @foo(ptr) readonly
!0 = distinct !{!0, !2, !"callee0: %a"}
!1 = distinct !{!1, !2, !"callee0: %b"}
!2 = distinct !{!2, !"callee0"}
!3 = !{!0}
!4 = !{!1}
!5 = !{!0, !1}
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