3c514d31d7
Update the EarlyCSE tests to use opaque pointers. Worth noting that this leaves some bitcast ptr to ptr instructions in the input IR behind which are no longer necessary. This is because these use numbered instructions, so it's hard to drop them in an automated fashion (as it would require renumbering all other instructions as well). I'm leaving that as a problem for another day. The test updates have been performed using https://gist.github.com/nikic/98357b71fd67756b0f064c9517b62a34. Differential Revision: https://reviews.llvm.org/D127278
39 lines
1.2 KiB
LLVM
39 lines
1.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S < %s -early-cse -earlycse-debug-hash | FileCheck %s
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; Store-to-load forwarding across a @llvm.experimental.noalias.scope.decl.
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define float @s2l(ptr %p) {
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; CHECK-LABEL: @s2l(
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; CHECK-NEXT: store float 0.000000e+00, ptr [[P:%.*]], align 4
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; CHECK-NEXT: call void @llvm.experimental.noalias.scope.decl(metadata !0)
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; CHECK-NEXT: ret float 0.000000e+00
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;
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store float 0.0, ptr %p
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call void @llvm.experimental.noalias.scope.decl(metadata !0)
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%t = load float, ptr %p
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ret float %t
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}
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; Redundant load elimination across a @llvm.experimental.noalias.scope.decl.
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define float @rle(ptr %p) {
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; CHECK-LABEL: @rle(
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; CHECK-NEXT: [[R:%.*]] = load float, ptr [[P:%.*]], align 4
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; CHECK-NEXT: call void @llvm.experimental.noalias.scope.decl(metadata !0)
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; CHECK-NEXT: [[T:%.*]] = fadd float [[R]], [[R]]
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; CHECK-NEXT: ret float [[T]]
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;
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%r = load float, ptr %p
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call void @llvm.experimental.noalias.scope.decl(metadata !0)
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%s = load float, ptr %p
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%t = fadd float %r, %s
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ret float %t
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}
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declare void @llvm.experimental.noalias.scope.decl(metadata)
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!0 = !{ !1 }
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!1 = distinct !{ !1, !2 }
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!2 = distinct !{ !2 }
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