xref: /llvm-project/llvm/test/CodeGen/PowerPC/vec_br_cmp.ll (revision 5403c59c608c08c8ecd4303763f08eb046eb5e4d) 
1; RUN: llc -verify-machineinstrs < %s -mtriple=ppc32-- -mcpu=g5 -o %t
2; RUN: grep vcmpeqfp. %t
3; RUN: not grep mfcr %t
4
5; A predicate compare used immediately by a branch should not generate an mfcr.
6
7define void @test(ptr %A, ptr %B) {
8	%tmp = load <4 x float>, ptr %A		; <<4 x float>> [#uses=1]
9	%tmp3 = load <4 x float>, ptr %B		; <<4 x float>> [#uses=1]
10	%tmp.upgrd.1 = tail call i32 @llvm.ppc.altivec.vcmpeqfp.p( i32 1, <4 x float> %tmp, <4 x float> %tmp3 )		; <i32> [#uses=1]
11	%tmp.upgrd.2 = icmp eq i32 %tmp.upgrd.1, 0		; <i1> [#uses=1]
12	br i1 %tmp.upgrd.2, label %cond_true, label %UnifiedReturnBlock
13
14cond_true:		; preds = %0
15	store <4 x float> zeroinitializer, ptr %B
16	ret void
17
18UnifiedReturnBlock:		; preds = %0
19	ret void
20}
21
22declare i32 @llvm.ppc.altivec.vcmpeqfp.p(i32, <4 x float>, <4 x float>)
23