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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -inline < %s | FileCheck %s
; This tests cases where instructions in the callee are simplified to
; instructions in the caller, thus making VMap contain instructions from
; the caller. We should not be assigning incorrect noalias metadata in
; that case.
declare { i64* } @opaque_callee()
define { i64* } @callee(i64* %x) {
; CHECK-LABEL: @callee(
; CHECK-NEXT: [[RES:%.*]] = insertvalue { i64* } undef, i64* [[X:%.*]], 0
; CHECK-NEXT: ret { i64* } [[RES]]
;
%res = insertvalue { i64* } undef, i64* %x, 0
ret { i64* } %res
}
; @opaque_callee() should not receive noalias metadata here.
define void @caller() {
; CHECK-LABEL: @caller(
; CHECK-NEXT: call void @llvm.experimental.noalias.scope.decl(metadata !0)
; CHECK-NEXT: [[S:%.*]] = call { i64* } @opaque_callee()
; CHECK-NEXT: [[X:%.*]] = extractvalue { i64* } [[S]], 0
; CHECK-NEXT: ret void
;
call void @llvm.experimental.noalias.scope.decl(metadata !0)
%s = call { i64* } @opaque_callee()
%x = extractvalue { i64* } %s, 0
call { i64* } @callee(i64* %x), !noalias !0
ret void
}
; @opaque_callee() should no the same noalias metadata as the load from the
; else branch, not as the load in the if branch.
define { i64* } @self_caller(i1 %c, i64* %a) {
; CHECK-LABEL: @self_caller(
; CHECK-NEXT: call void @llvm.experimental.noalias.scope.decl(metadata !0)
; CHECK-NEXT: br i1 [[C:%.*]], label [[IF:%.*]], label [[ELSE:%.*]]
; CHECK: if:
; CHECK-NEXT: [[S:%.*]] = call { i64* } @opaque_callee(), !noalias !0
; CHECK-NEXT: [[X:%.*]] = extractvalue { i64* } [[S]], 0
; CHECK-NEXT: call void @llvm.experimental.noalias.scope.decl(metadata !3)
; CHECK-NEXT: [[TMP1:%.*]] = load volatile i64, i64* [[X]], align 4, !alias.scope !3
; CHECK-NEXT: ret { i64* } [[S]]
; CHECK: else:
; CHECK-NEXT: [[R2:%.*]] = insertvalue { i64* } undef, i64* [[A:%.*]], 0
; CHECK-NEXT: [[TMP2:%.*]] = load volatile i64, i64* [[A]], align 4, !alias.scope !0
; CHECK-NEXT: ret { i64* } [[R2]]
;
call void @llvm.experimental.noalias.scope.decl(metadata !0)
br i1 %c, label %if, label %else
if:
%s = call { i64* } @opaque_callee(), !noalias !0
%x = extractvalue { i64* } %s, 0
%r = call { i64* } @self_caller(i1 false, i64* %x)
ret { i64* } %r
else:
%r2 = insertvalue { i64* } undef, i64* %a, 0
load volatile i64, i64* %a, !alias.scope !0
ret { i64* } %r2
}
declare void @llvm.experimental.noalias.scope.decl(metadata)
!0 = !{!1}
!1 = !{!1, !2, !"scope"}
!2 = !{!2, !"domain"}
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