diff --git a/test/CodeGen/PowerPC/vec_br_cmp.ll b/test/CodeGen/PowerPC/vec_br_cmp.ll new file mode 100644 index 00000000000..3ce99aa54aa --- /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>) +