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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S < %s -passes=early-cse -earlycse-debug-hash | FileCheck %s
; Store-to-load forwarding across a @llvm.experimental.noalias.scope.decl.
define float @s2l(ptr %p) {
; CHECK-LABEL: @s2l(
; CHECK-NEXT: store float 0.000000e+00, ptr [[P:%.*]], align 4
; CHECK-NEXT: call void @llvm.experimental.noalias.scope.decl(metadata !0)
; CHECK-NEXT: ret float 0.000000e+00
;
store float 0.0, ptr %p
call void @llvm.experimental.noalias.scope.decl(metadata !0)
%t = load float, ptr %p
ret float %t
}
; Redundant load elimination across a @llvm.experimental.noalias.scope.decl.
define float @rle(ptr %p) {
; CHECK-LABEL: @rle(
; CHECK-NEXT: [[R:%.*]] = load float, ptr [[P:%.*]], align 4
; CHECK-NEXT: call void @llvm.experimental.noalias.scope.decl(metadata !0)
; CHECK-NEXT: [[T:%.*]] = fadd float [[R]], [[R]]
; CHECK-NEXT: ret float [[T]]
;
%r = load float, ptr %p
call void @llvm.experimental.noalias.scope.decl(metadata !0)
%s = load float, ptr %p
%t = fadd float %r, %s
ret float %t
}
declare void @llvm.experimental.noalias.scope.decl(metadata)
!0 = !{ !1 }
!1 = distinct !{ !1, !2 }
!2 = distinct !{ !2 }
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