Add target-specific dag combines for FAND(x,0) and FOR(x,0). This allows

[oota-llvm.git] / test / CodeGen / X86 / copysign-zero.ll

diff --git a/test/CodeGen/X86/copysign-zero.ll b/test/CodeGen/X86/copysign-zero.ll
new file mode 100644 (file)
index 0000000..a08fa65
--- /dev/null
+++ b/test/CodeGen/X86/copysign-zero.ll
@@ -0,0 +1,14 @@
+; RUN: llvm-as < %s | llc | not grep orpd
+; RUN: llvm-as < %s | llc | grep andpd | count 1
+
+target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
+target triple = "x86_64-apple-darwin8"
+
+define double @test(double %X) nounwind  {
+entry:
+       %tmp2 = tail call double @copysign( double 0.000000e+00, double %X ) nounwind readnone          ; <double> [#uses=1]
+       ret double %tmp2
+}
+
+declare double @copysign(double, double) nounwind readnone 
+