new testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27803 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/PowerPC/vec_br_cmp.ll b/test/CodeGen/PowerPC/vec_br_cmp.ll
new file mode 100644 (file)
index 0000000..3ce99aa
--- /dev/null
+++ b/test/CodeGen/PowerPC/vec_br_cmp.ll
@@ -0,0 +1,22 @@
+; RUN: llvm-as < %s | llc -march=ppc32 -mcpu=g5 | grep vcmpeqfp. &&
+; RUN: llvm-as < %s | llc -march=ppc32 -mcpu=g5 | not grep mfcr
+
+; A predicate compare used immediately by a branch should not generate an mfcr.
+
+void %test(<4 x float>* %A, <4 x float>* %B) {
+        %tmp = load <4 x float>* %A
+        %tmp3 = load <4 x float>* %B
+        %tmp = tail call int %llvm.ppc.altivec.vcmpeqfp.p( int 1, <4 x float> %tmp, <4 x float> %tmp3 )
+        %tmp = seteq int %tmp, 0
+        br bool %tmp, label %cond_true, label %UnifiedReturnBlock
+
+cond_true:
+        store <4 x float> zeroinitializer, <4 x float>* %B
+        ret void
+
+UnifiedReturnBlock:
+        ret void
+}
+
+declare int %llvm.ppc.altivec.vcmpeqfp.p(int, <4 x float>, <4 x float>)
+