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]] 15 define void @test(i32 addrspace(1)* %out, i32 %cond) { 16 entry: 17 %tmp0 = icmp eq i32 %cond, 0 18 br i1 %tmp0, label %if, label %loop 19 20 if: 21 store i32 0, i32 addrspace(1)* %out 22 br label %loop 23 24 loop: 25 %tmp1 = phi i32 [0, %entry], [0, %if], [%inc, %loop] 26 %inc = add i32 %tmp1, %cond 27 %tmp2 = icmp ugt i32 %inc, 10 28 br i1 %tmp2, label %done, label %loop 29 30 done: 31 %tmp3 = getelementptr i32, i32 addrspace(1)* %out, i64 1 32 store i32 %inc, i32 addrspace(1)* %tmp3 33 ret void 34 } 35
