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205b641954
input filename so that opt doesn't print the input filename in the output so that grep lines in the tests don't unintentionally match strings in the input filename. llvm-svn: 81537
37 lines
1.1 KiB
LLVM
37 lines
1.1 KiB
LLVM
; LoopSimplify is breaking LICM on this testcase because the exit blocks from
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; the loop are reachable from more than just the exit nodes: the exit blocks
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; have predecessors from outside of the loop!
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;
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; This is distilled from a monsterous crafty example.
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; RUN: opt < %s -licm -disable-output
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@G = weak global i32 0 ; <i32*> [#uses=7]
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define i32 @main() {
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entry:
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store i32 123, i32* @G
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br label %loopentry.i
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loopentry.i: ; preds = %endif.1.i, %entry
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%tmp.0.i = load i32* @G ; <i32> [#uses=1]
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%tmp.1.i = icmp eq i32 %tmp.0.i, 123 ; <i1> [#uses=1]
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br i1 %tmp.1.i, label %Out.i, label %endif.0.i
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endif.0.i: ; preds = %loopentry.i
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%tmp.3.i = load i32* @G ; <i32> [#uses=1]
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%tmp.4.i = icmp eq i32 %tmp.3.i, 126 ; <i1> [#uses=1]
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br i1 %tmp.4.i, label %ExitBlock.i, label %endif.1.i
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endif.1.i: ; preds = %endif.0.i
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%tmp.6.i = load i32* @G ; <i32> [#uses=1]
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%inc.i = add i32 %tmp.6.i, 1 ; <i32> [#uses=1]
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store i32 %inc.i, i32* @G
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br label %loopentry.i
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Out.i: ; preds = %loopentry.i
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store i32 0, i32* @G
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br label %ExitBlock.i
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ExitBlock.i: ; preds = %Out.i, %endif.0.i
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%tmp.7.i = load i32* @G ; <i32> [#uses=1]
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ret i32 %tmp.7.i
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}
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