New test case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29558 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/X86/2006-08-07-CycleInDAG.ll b/test/CodeGen/X86/2006-08-07-CycleInDAG.ll
new file mode 100644 (file)
index 0000000..a8a3732
--- /dev/null
+++ b/test/CodeGen/X86/2006-08-07-CycleInDAG.ll
@@ -0,0 +1,30 @@
+; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse2
+
+fastcc int %test(%struct.foo* %v, %struct.foo* %vi) {
+       br bool false, label %ilog2.exit, label %cond_true.i
+
+cond_true.i:           ; preds = %entry
+       ret int 0
+
+ilog2.exit:            ; preds = %entry
+       %tmp24.i = load int* null               ; <int> [#uses=1]
+       %tmp13.i12.i = tail call double %ldexp( double 0.000000e+00, int 0 )            ; <double> [#uses=1]
+       %tmp13.i13.i = cast double %tmp13.i12.i to float                ; <float> [#uses=1]
+       %tmp11.i = load int* null               ; <int> [#uses=1]
+       %tmp11.i = cast int %tmp11.i to uint            ; <uint> [#uses=1]
+       %n.i = cast int %tmp24.i to uint                ; <uint> [#uses=1]
+       %tmp13.i7 = mul uint %tmp11.i, %n.i             ; <uint> [#uses=1]
+       %tmp.i8 = tail call sbyte* %calloc( uint %tmp13.i7, uint 4 )            ; <sbyte*> [#uses=0]
+       br bool false, label %bb224.preheader.i, label %bb.i
+
+bb.i:          ; preds = %ilog2.exit
+       ret int 0
+
+bb224.preheader.i:             ; preds = %ilog2.exit
+       %tmp165.i = cast float %tmp13.i13.i to double           ; <double> [#uses=0]
+       ret int 0
+}
+
+declare sbyte* %calloc(uint, uint)
+
+declare double %ldexp(double, int)