match a reassociated form of fnmul

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36659 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/ARM/fnmul.ll b/test/CodeGen/ARM/fnmul.ll
new file mode 100644 (file)
index 0000000..87a30c9
--- /dev/null
+++ b/test/CodeGen/ARM/fnmul.ll
@@ -0,0 +1,11 @@
+; RUN: llvm-as < %s | llc -march=arm -mattr=+v6,+vfp2 | grep fnmuld
+; RUN: llvm-as < %s | llc -march=arm -mattr=+v6,+vfp2 -enable-sign-dependent-rounding-fp-math | grep fmul
+
+
+define double @t1(double %a, double %b) {
+entry:
+        %tmp2 = sub double -0.000000e+00, %a            ; <double> [#uses=1]
+        %tmp4 = mul double %tmp2, %b            ; <double> [#uses=1]
+        ret double %tmp4
+}
+