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Viewing changes to test/Analysis/ScalarEvolution/2007-09-27-LargeStepping.ll

  • Committer: Package Import Robot
  • Author(s): Sylvestre Ledru
  • Date: 2015-07-15 17:51:08 UTC
  • Revision ID: package-import@ubuntu.com-20150715175108-l8mynwovkx4zx697
Tags: upstream-3.7~+rc2
Import upstream version 3.7~+rc2

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test/Analysis/ScalarEvolution/2007-09-27-LargeStepping.ll
 
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; RUN: opt < %s -analyze -scalar-evolution -scalar-evolution-max-iterations=0 | FileCheck %s
 
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; PR1706
 
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; CHECK: backedge-taken count is 13
 
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define i32 @f() {
 
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entry:
 
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        br label %bb5
 
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bb:             ; preds = %bb5
 
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        %tmp2 = shl i32 %j.0, 1         ; <i32> [#uses=1]
 
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        %tmp4 = add i32 %i.0, 268435456         ; <i32> [#uses=1]
 
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        br label %bb5
 
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bb5:            ; preds = %bb, %entry
 
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        %j.0 = phi i32 [ 1, %entry ], [ %tmp2, %bb ]            ; <i32> [#uses=2]
 
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        %i.0 = phi i32 [ -1879048192, %entry ], [ %tmp4, %bb ]          ; <i32> [#uses=2]
 
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        %tmp7 = icmp slt i32 %i.0, 1610612736           ; <i1> [#uses=1]
 
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        br i1 %tmp7, label %bb, label %return
 
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return:         ; preds = %bb5
 
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        ret i32 %j.0
 
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}