Emit neg.s or neg.d only if -enable-no-nans-fp-math is supplied by user,
otherwise expand FNEG during legalization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154546 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/Mips/fneg.ll b/test/CodeGen/Mips/fneg.ll
new file mode 100644
index 0000000..162146f
--- /dev/null
+++ b/test/CodeGen/Mips/fneg.ll
@@ -0,0 +1,17 @@
+; RUN: llc < %s -march=mipsel -mcpu=mips32 | FileCheck %s
+
+define float @foo0(i32 %a, float %d) nounwind readnone {
+entry:
+; CHECK-NOT: fabs.s
+ %sub = fsub float -0.000000e+00, %d
+ ret float %sub
+}
+
+define double @foo1(i32 %a, double %d) nounwind readnone {
+entry:
+; CHECK: foo1
+; CHECK-NOT: fabs.d
+; CHECK: jr
+ %sub = fsub double -0.000000e+00, %d
+ ret double %sub
+}