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https://github.com/c64scene-ar/llvm-6502.git
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952e40ff00
No reason to limit it only to GEP-related crashes. More tests are to come here. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@243543 91177308-0d34-0410-b5e6-96231b3b80d8
35 lines
938 B
LLVM
35 lines
938 B
LLVM
; Check that we don't crash on corner cases.
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; RUN: opt < %s -S -loop-unroll -unroll-max-iteration-count-to-analyze=1000 -unroll-threshold=10 -unroll-percent-dynamic-cost-saved-threshold=20 -o /dev/null
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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define void @foo1() {
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entry:
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br label %for.body
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for.body:
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%phi = phi i64 [ 0, %entry ], [ %inc, %for.body ]
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%idx = zext i32 undef to i64
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%add.ptr = getelementptr inbounds i64, i64* null, i64 %idx
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%inc = add nuw nsw i64 %phi, 1
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%cmp = icmp ult i64 %inc, 999
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br i1 %cmp, label %for.body, label %for.exit
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for.exit:
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ret void
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}
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define void @foo2() {
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entry:
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br label %for.body
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for.body:
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%phi = phi i64 [ 0, %entry ], [ %inc, %for.body ]
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%x = getelementptr i32, <4 x i32*> undef, <4 x i32> <i32 1, i32 1, i32 1, i32 1>
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%inc = add nuw nsw i64 %phi, 1
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%cmp = icmp ult i64 %inc, 999
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br i1 %cmp, label %for.body, label %for.exit
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for.exit:
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ret void
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}
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