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.
25 lines
828 B
LLVM
25 lines
828 B
LLVM
; RUN: opt < %s -passes=loop-vectorize -force-vector-interleave=1 -force-vector-width=4
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target datalayout =
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"e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
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define void @test(ptr %p, i1 %arg) {
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entry:
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br i1 %arg, label %while.end, label %while.body.lr.ph
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while.body.lr.ph:
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br label %while.body
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while.body:
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%it.sroa.0.091 = phi ptr [ %p, %while.body.lr.ph ], [ %incdec.ptr.i, %while.body ]
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%incdec.ptr.i = getelementptr inbounds i32, ptr %it.sroa.0.091, i64 1
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%inc32 = add i32 undef, 1 ; <------------- Make sure we don't set NSW flags to the undef.
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%cmp.i11 = icmp eq ptr %incdec.ptr.i, undef
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br i1 %cmp.i11, label %while.end, label %while.body
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while.end:
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ret void
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}
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