forked from OSchip/llvm-project
40 lines
1.1 KiB
LLVM
40 lines
1.1 KiB
LLVM
; RUN: llc < %s -march=amdgcn -verify-machineinstrs | FileCheck %s
|
|
|
|
; This tests that the llvm.SI.end.cf intrinsic is not inserted into the
|
|
; loop block. This intrinsic will be lowered to s_or_b64 by the code
|
|
; generator.
|
|
|
|
; CHECK-LABEL: {{^}}test:
|
|
|
|
; This is was lowered from the llvm.SI.end.cf intrinsic:
|
|
; CHECK: s_or_b64 exec, exec
|
|
|
|
; CHECK: [[LOOP_LABEL:[0-9A-Za-z_]+]]: ; %loop{{$}}
|
|
; CHECK-NOT: s_or_b64 exec, exec
|
|
; CHECK: s_cbranch_execnz [[LOOP_LABEL]]
|
|
define amdgpu_kernel void @test(i32 addrspace(1)* %out) {
|
|
entry:
|
|
%cond = call i32 @llvm.amdgcn.workitem.id.x() #0
|
|
%tmp0 = icmp eq i32 %cond, 0
|
|
br i1 %tmp0, label %if, label %loop
|
|
|
|
if:
|
|
store i32 0, i32 addrspace(1)* %out
|
|
br label %loop
|
|
|
|
loop:
|
|
%tmp1 = phi i32 [0, %entry], [0, %if], [%inc, %loop]
|
|
%inc = add i32 %tmp1, %cond
|
|
%tmp2 = icmp ugt i32 %inc, 10
|
|
br i1 %tmp2, label %done, label %loop
|
|
|
|
done:
|
|
%tmp3 = getelementptr i32, i32 addrspace(1)* %out, i64 1
|
|
store i32 %inc, i32 addrspace(1)* %tmp3
|
|
ret void
|
|
}
|
|
|
|
declare i32 @llvm.amdgcn.workitem.id.x() #0
|
|
|
|
attributes #0 = { nounwind readnone }
|