Fix an erroneous check for isFNeg; the FNeg case is handled
a few lines later on.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72904 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/CBackend/fneg.ll b/test/CodeGen/CBackend/fneg.ll
new file mode 100644
index 0000000..68849b2
--- /dev/null
+++ b/test/CodeGen/CBackend/fneg.ll
@@ -0,0 +1,7 @@
+; RUN: llvm-as < %s | llc -march=c
+
+define void @func() nounwind {
+  entry:
+  %0 = fsub double -0.0, undef
+  ret void
+}