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2eb832d47c
This patch adds IR tests for the known NewGVN issues. The intention is that adding them now will make it easier to keep track of fixes.
33 lines
793 B
LLVM
33 lines
793 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -newgvn -S %s | FileCheck %s
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; TODO: NewGVN currently miscomiles the function below. PR36335.
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declare void @foo(i32)
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define void @main(i1 %c1, i1 %c2, i32 %x) {
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; CHECK-LABEL: @main(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br i1 [[C1:%.*]], label [[L:%.*]], label [[END:%.*]]
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; CHECK: L:
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; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[X:%.*]], -1
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; CHECK-NEXT: call void @foo(i32 [[XOR]])
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; CHECK-NEXT: br label [[L]]
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; CHECK: end:
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; CHECK-NEXT: ret void
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;
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entry:
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br i1 %c1, label %L, label %end
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L:
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%d.1 = phi i8 [ undef, %entry ], [ -1, %L ]
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%conv = sext i8 %d.1 to i32
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%xor = xor i32 %x, %conv
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%neg = xor i32 %xor, -1
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call void @foo(i32 %neg)
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br label %L
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end:
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ret void
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}
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