From 4d148f2eced444e063bede9a4bd289218c7f11ed Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Wed, 18 Jan 2006 19:13:11 +0000 Subject: [PATCH] this testcase sent the dag combiner spinning into an infinite loop llvm-svn: 25418 --- .../Generic/2005-01-18-SetUO-InfLoop.ll | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 llvm/test/Regression/CodeGen/Generic/2005-01-18-SetUO-InfLoop.ll diff --git a/llvm/test/Regression/CodeGen/Generic/2005-01-18-SetUO-InfLoop.ll b/llvm/test/Regression/CodeGen/Generic/2005-01-18-SetUO-InfLoop.ll new file mode 100644 index 000000000000..072841d948f0 --- /dev/null +++ b/llvm/test/Regression/CodeGen/Generic/2005-01-18-SetUO-InfLoop.ll @@ -0,0 +1,19 @@ +; RUN: llvm-as < %s | llc + +void %intersect_pixel() { +entry: + %tmp125 = call bool %llvm.isunordered.f64( double 0.000000e+00, double 0.000000e+00 ) ; [#uses=1] + %tmp126 = or bool %tmp125, false ; [#uses=1] + %tmp126.not = xor bool %tmp126, true ; [#uses=1] + %brmerge1 = or bool %tmp126.not, false ; [#uses=1] + br bool %brmerge1, label %bb154, label %cond_false133 + +cond_false133: ; preds = %entry + ret void + +bb154: ; preds = %entry + %tmp164 = seteq uint 0, 0 ; [#uses=0] + ret void +} + +declare bool %llvm.isunordered.f64(double, double)