7b3fe5fd42
Split off from PR #163525, this standalone patch replaces simple cases where undef is used as a value for arithmetic or getelementptr instructions. This will reduce the likelihood of contributors hitting the `undef deprecator` warning in github.
21 lines
490 B
LLVM
21 lines
490 B
LLVM
; RUN: opt < %s -passes=loop-vectorize -S | FileCheck %s
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; getDemandedBits() is called on the pointer-typed GEP instruction here.
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; Only make sure we do not crash.
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; CHECK: @test
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define void @test(i8 %v, ptr %ptr, ptr %ptr_end) {
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start:
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br label %loop
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loop:
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%ptr2 = phi ptr [ %ptr3, %loop ], [ %ptr, %start ]
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%x = sext i8 %v to i64
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%ptr3 = getelementptr inbounds i8, ptr %ptr2, i64 1
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%cmp = icmp ult ptr %ptr3, %ptr_end
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br i1 %cmp, label %loop, label %end
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end:
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ret void
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}
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