47 lines
1.8 KiB
LLVM
47 lines
1.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
|
|
; RUN: opt -S -mtriple=amdgcn-- -structurizecfg -si-annotate-control-flow %s | FileCheck -check-prefix=IR %s
|
|
; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 < %s | FileCheck %s
|
|
|
|
define void @loop_on_argument(i1 %arg) {
|
|
; IR-LABEL: @loop_on_argument(
|
|
; IR-NEXT: entry:
|
|
; IR-NEXT: br label [[LOOP:%.*]]
|
|
; IR: loop:
|
|
; IR-NEXT: [[PHI_BROKEN:%.*]] = phi i64 [ [[TMP0:%.*]], [[LOOP]] ], [ 0, [[ENTRY:%.*]] ]
|
|
; IR-NEXT: [[TMP0]] = call i64 @llvm.amdgcn.if.break.i64(i1 [[ARG:%.*]], i64 [[PHI_BROKEN]])
|
|
; IR-NEXT: store volatile i32 0, i32 addrspace(1)* undef, align 4
|
|
; IR-NEXT: [[TMP1:%.*]] = call i1 @llvm.amdgcn.loop.i64(i64 [[TMP0]])
|
|
; IR-NEXT: br i1 [[TMP1]], label [[EXIT:%.*]], label [[LOOP]]
|
|
; IR: exit:
|
|
; IR-NEXT: call void @llvm.amdgcn.end.cf.i64(i64 [[TMP0]])
|
|
; IR-NEXT: ret void
|
|
;
|
|
; CHECK-LABEL: loop_on_argument:
|
|
; CHECK: ; %bb.0: ; %entry
|
|
; CHECK-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
|
|
; CHECK-NEXT: v_and_b32_e32 v0, 1, v0
|
|
; CHECK-NEXT: v_cmp_eq_u32_e32 vcc, 1, v0
|
|
; CHECK-NEXT: s_mov_b64 s[4:5], 0
|
|
; CHECK-NEXT: v_mov_b32_e32 v0, 0
|
|
; CHECK-NEXT: .LBB0_1: ; %loop
|
|
; CHECK-NEXT: ; =>This Inner Loop Header: Depth=1
|
|
; CHECK-NEXT: s_and_b64 s[6:7], exec, vcc
|
|
; CHECK-NEXT: s_or_b64 s[4:5], s[6:7], s[4:5]
|
|
; CHECK-NEXT: global_store_dword v[0:1], v0, off
|
|
; CHECK-NEXT: s_waitcnt vmcnt(0)
|
|
; CHECK-NEXT: s_andn2_b64 exec, exec, s[4:5]
|
|
; CHECK-NEXT: s_cbranch_execnz .LBB0_1
|
|
; CHECK-NEXT: ; %bb.2: ; %exit
|
|
; CHECK-NEXT: s_or_b64 exec, exec, s[4:5]
|
|
; CHECK-NEXT: s_setpc_b64 s[30:31]
|
|
entry:
|
|
br label %loop
|
|
|
|
loop:
|
|
store volatile i32 0, i32 addrspace(1)* undef
|
|
br i1 %arg, label %exit, label %loop
|
|
|
|
exit:
|
|
ret void
|
|
}
|