add a partial test for the fma operations that ppc supports. I'm sure I'm

missing some and not all of these match yet, but I'm sure that Nate will
clean up my mess :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21168 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/PowerPC/fma.ll b/test/CodeGen/PowerPC/fma.ll
new file mode 100644 (file)
index 0000000..26b8aac
--- /dev/null
+++ b/test/CodeGen/PowerPC/fma.ll
@@ -0,0 +1,30 @@
+; RUN: llvm-as < %s | llc -march=ppc32 -enable-ppc-pattern-isel | grep 'fn\?madd\|fn\?msub' | wc -l | grep 5
+
+double %test_FMADD(double %A, double %B, double %C) {
+       %D = mul double %A, %B
+       %E = add double %D, %C
+       ret double %E
+}
+double %test_FMSUB(double %A, double %B, double %C) {
+       %D = mul double %A, %B
+       %E = sub double %D, %C
+       ret double %E
+}
+double %test_FNMADD1(double %A, double %B, double %C) {
+       %D = mul double %A, %B
+       %E = sub double %D, %C
+       %F = sub double -0.0, %E
+       ret double %F
+}
+double %test_FNMADD2(double %A, double %B, double %C) {
+       %D = mul double %A, %B
+       %E = add double %D, %C
+       %F = sub double -0.0, %E
+       ret double %F
+}
+double %test_FNMADD3(double %A, double %B, double %C) {
+       %D = mul double %A, %B
+       %E = add double %C, %D
+       %F = sub double -0.0, %E
+       ret double %F
+}