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this testcase sent the dag combiner spinning into an infinite loop

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25418 91177308-0d34-0410-b5e6-96231b3b80d8
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Chris Lattner 2006-01-18 19:13:11 +00:00
parent e719a7c40b
commit a076787d7b
1 changed files with 19 additions and 0 deletions
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test/CodeGen/Generic/2005-01-18-SetUO-InfLoop.ll Normal file
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; RUN: llvm-as < %s | llc
void %intersect_pixel() {
entry:
%tmp125 = call bool %llvm.isunordered.f64( double 0.000000e+00, double 0.000000e+00 ) ; <bool> [#uses=1]
%tmp126 = or bool %tmp125, false ; <bool> [#uses=1]
%tmp126.not = xor bool %tmp126, true ; <bool> [#uses=1]
%brmerge1 = or bool %tmp126.not, false ; <bool> [#uses=1]
br bool %brmerge1, label %bb154, label %cond_false133
cond_false133: ; preds = %entry
ret void
bb154: ; preds = %entry
%tmp164 = seteq uint 0, 0 ; <bool> [#uses=0]
ret void
}
declare bool %llvm.isunordered.f64(double, double)