forked from OSchip/llvm-project
45 lines
1009 B
LLVM
45 lines
1009 B
LLVM
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; RUN: opt < %s -scalar-evolution-max-arith-depth=0 -indvars -S | FileCheck %s
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target datalayout = "e-m:e-i32:64-f80:128-n8:16:32:64-S128-ni:1"
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target triple = "x86_64-unknown-linux-gnu"
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; Check that it does not crash because SCEVAddRec's step is not an AddRec.
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define void @pr35890(i32* %inc_ptr, i32 %a) {
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; CHECK-LABEL: @pr35890(
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entry:
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%inc = load i32, i32* %inc_ptr, !range !0
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%ne.cond = icmp ne i32 %inc, 0
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br i1 %ne.cond, label %loop, label %bail
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loop:
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%iv = phi i32 [ 0, %entry ], [ %iv.next, %backedge ]
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%a.1 = add i32 %a, 1
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%iv.next = add i32 %iv, %a.1
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%iv.wide = zext i32 %iv to i64
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%iv.square = mul i64 %iv.wide, %iv.wide
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%iv.cube = mul i64 %iv.square, %iv.wide
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%brcond = icmp slt i64 %iv.wide, %iv.cube
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br i1 %brcond, label %if.true, label %if.false
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if.true:
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br label %backedge
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if.false:
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br label %backedge
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backedge:
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%loopcond = icmp slt i32 %iv, 200
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br i1 %loopcond, label %loop, label %exit
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exit:
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ret void
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bail:
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ret void
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}
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!0 = !{i32 0, i32 100}
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