1; RUN: llc < %s -march=amdgcn -mcpu=SI -verify-machineinstrs | FileCheck %s
2
3; This tests that the llvm.SI.end.cf intrinsic is not inserted into the
4; loop block.  This intrinsic will be lowered to s_or_b64 by the code
5; generator.
6
7; CHECK-LABEL: {{^}}test:
8
9; This is was lowered from the llvm.SI.end.cf intrinsic:
10; CHECK: s_or_b64 exec, exec
11
12; CHECK: [[LOOP_LABEL:[0-9A-Za-z_]+]]: ; %loop{{$}}
13; CHECK-NOT: s_or_b64 exec, exec
14; CHECK: s_cbranch_execnz [[LOOP_LABEL]]
15define void @test(i32 addrspace(1)* %out) {
16entry:
17  %cond = call i32 @llvm.r600.read.tidig.x() #0
18  %tmp0 = icmp eq i32 %cond, 0
19  br i1 %tmp0, label %if, label %loop
20
21if:
22  store i32 0, i32 addrspace(1)* %out
23  br label %loop
24
25loop:
26  %tmp1 = phi i32 [0, %entry], [0, %if], [%inc, %loop]
27  %inc = add i32 %tmp1, %cond
28  %tmp2 = icmp ugt i32 %inc, 10
29  br i1 %tmp2, label %done, label %loop
30
31done:
32  %tmp3 = getelementptr i32, i32 addrspace(1)* %out, i64 1
33  store i32 %inc, i32 addrspace(1)* %tmp3
34  ret void
35}
36
37declare i32 @llvm.r600.read.tidig.x() #0
38
39attributes #0 = { readnone }
40