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Diffstat (limited to 'test/CodeGen/PowerPC/vec_br_cmp.ll')
| -rw-r--r-- | test/CodeGen/PowerPC/vec_br_cmp.ll | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/test/CodeGen/PowerPC/vec_br_cmp.ll b/test/CodeGen/PowerPC/vec_br_cmp.ll new file mode 100644 index 0000000..c34d850 --- /dev/null +++ b/test/CodeGen/PowerPC/vec_br_cmp.ll @@ -0,0 +1,22 @@ +; RUN: llc < %s -march=ppc32 -mcpu=g5 -o %t +; RUN: grep vcmpeqfp. %t +; RUN: not grep mfcr %t + +; A predicate compare used immediately by a branch should not generate an mfcr. + +define void @test(<4 x float>* %A, <4 x float>* %B) { + %tmp = load <4 x float>* %A ; <<4 x float>> [#uses=1] + %tmp3 = load <4 x float>* %B ; <<4 x float>> [#uses=1] + %tmp.upgrd.1 = tail call i32 @llvm.ppc.altivec.vcmpeqfp.p( i32 1, <4 x float> %tmp, <4 x float> %tmp3 ) ; <i32> [#uses=1] + %tmp.upgrd.2 = icmp eq i32 %tmp.upgrd.1, 0 ; <i1> [#uses=1] + br i1 %tmp.upgrd.2, label %cond_true, label %UnifiedReturnBlock + +cond_true: ; preds = %0 + store <4 x float> zeroinitializer, <4 x float>* %B + ret void + +UnifiedReturnBlock: ; preds = %0 + ret void +} + +declare i32 @llvm.ppc.altivec.vcmpeqfp.p(i32, <4 x float>, <4 x float>) |