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ec1f59a19a
Summary: (Note: the problematic invocation of hoistIVInc that caused PR24804 came from IndVarSimplify, not from SCEVExpander itself) Fixes PR24804. Test case by David Majnemer. Reviewers: hfinkel, majnemer, atrick, mzolotukhin Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D15058 llvm-svn: 254976
26 lines
805 B
LLVM
26 lines
805 B
LLVM
; RUN: opt -indvars -loop-idiom -loop-deletion -S < %s | FileCheck %s
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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; Checking for a crash
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define void @f(i32* %a) {
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; CHECK-LABEL: @f(
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entry:
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br label %for.cond
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for.cond: ; preds = %for.inc, %for.cond, %entry
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%iv = phi i32 [ 0, %entry ], [ %add, %for.inc ], [ %iv, %for.cond ]
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%add = add nsw i32 %iv, 1
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%idxprom = sext i32 %add to i64
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%arrayidx = getelementptr inbounds i32, i32* %a, i64 %idxprom
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br i1 undef, label %for.cond, label %for.inc
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for.inc: ; preds = %for.cond
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br i1 undef, label %for.cond, label %for.end
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for.end: ; preds = %for.inc
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ret void
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}
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