952e069393
This is UB and allows the compiler to give any result, so these tests weren't meaningful InstCombine tests are now clean of 'br undef'
30 lines
891 B
LLVM
30 lines
891 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -passes=instcombine -S | FileCheck %s
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target datalayout = "n32"
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define i1 @oss_fuzz_32759(i1 %y, i1 %c1) {
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; CHECK-LABEL: @oss_fuzz_32759(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br i1 [[C1:%.*]], label [[COND_TRUE:%.*]], label [[END:%.*]]
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; CHECK: cond.true:
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; CHECK-NEXT: br label [[END]]
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; CHECK: end:
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; CHECK-NEXT: ret i1 false
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;
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entry:
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br i1 %c1, label %cond.true, label %end
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cond.true: ; preds = %entry
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%zy = zext i1 %y to i32
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%B6 = shl i32 %zy, 2147483647
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%B3 = ashr i32 %B6, 2147483647
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%B7 = srem i32 %B3, 123
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%cond = xor i32 %B7, %B3
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br label %end
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end: ; preds = %cond.true, %entry
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%p = phi i32 [ %cond, %cond.true ], [ -1, %entry ]
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%r = icmp eq i32 %p, 0
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ret i1 %r
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}
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