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New testcase that causes the code extractor to generate bogus code. 

llvm-svn: 12404
This commit is contained in:
Chris Lattner 2004-03-15 00:08:49 +00:00
parent 2f155d8734
commit fec74e7ce2
1 changed files with 34 additions and 0 deletions
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34
llvm/test/Regression/Transforms/CodeExtractor/2004-03-14-DominanceProblem.ll Normal file
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; RUN: llvm-as < %s | opt -loop-extract -disable-output
; This testcase is failing the loop extractor because not all exit blocks
; are dominated by all of the live-outs.
implementation ; Functions:
int %ab(int %alpha, int %beta) {
entry:
br label %loopentry.1.preheader
loopentry.1.preheader: ; preds = %then.1
br label %loopentry.1
loopentry.1: ; preds = %loopentry.1.preheader, %no_exit.1
br bool false, label %no_exit.1, label %loopexit.0.loopexit1
no_exit.1: ; preds = %loopentry.1
%tmp.53 = load int* null ; <int> [#uses=1]
br bool false, label %shortcirc_next.2, label %loopentry.1
shortcirc_next.2: ; preds = %no_exit.1
%tmp.563 = call int %wins( int 0, int %tmp.53, int 3 ) ; <int> [#uses=0]
ret int 0
loopexit.0.loopexit1: ; preds = %loopentry.1
br label %loopexit.0
loopexit.0: ; preds = %loopexit.0.loopexit, %loopexit.0.loopexit1
ret int 0
}
declare int %wins(int, int, int)
declare ushort %ab_code()