; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt -mtriple=amdgcn -mcpu=gfx900 -amdgpu-aa -amdgpu-aa-wrapper -amdgpu-annotate-uniform -S < %s | FileCheck %s ; RUN: llc -mtriple=amdgcn -mcpu=gfx900 -amdgpu-atomic-optimizer-strategy=None < %s | FileCheck -check-prefix=GCN %s ; Check that barrier or fence in between of loads is not considered a clobber ; for the purpose of converting vector loads into scalar. @LDS = linkonce_odr hidden local_unnamed_addr addrspace(3) global i32 poison define amdgpu_kernel void @simple_barrier(ptr addrspace(1) %arg) { ; CHECK-LABEL: @simple_barrier( ; CHECK-NEXT: bb: ; CHECK-NEXT: [[I:%.*]] = load i32, ptr addrspace(1) [[ARG:%.*]], align 4, !amdgpu.noclobber [[META0:![0-9]+]] ; CHECK-NEXT: fence syncscope("workgroup") release ; CHECK-NEXT: tail call void @llvm.amdgcn.s.barrier() ; CHECK-NEXT: fence syncscope("workgroup") acquire ; CHECK-NEXT: tail call void @llvm.amdgcn.wave.barrier() ; CHECK-NEXT: [[I1:%.*]] = getelementptr inbounds i32, ptr addrspace(1) [[ARG]], i64 1, !amdgpu.uniform [[META0]] ; CHECK-NEXT: [[I2:%.*]] = load i32, ptr addrspace(1) [[I1]], align 4, !amdgpu.noclobber [[META0]] ; CHECK-NEXT: [[I3:%.*]] = add i32 [[I2]], [[I]] ; CHECK-NEXT: [[I4:%.*]] = getelementptr inbounds i32, ptr addrspace(1) [[ARG]], i64 2 ; CHECK-NEXT: store i32 [[I3]], ptr addrspace(1) [[I4]], align 4 ; CHECK-NEXT: ret void ; ; GCN-LABEL: simple_barrier: ; GCN: ; %bb.0: ; %bb ; GCN-NEXT: s_load_dwordx2 s[0:1], s[4:5], 0x24 ; GCN-NEXT: v_mov_b32_e32 v0, 0 ; GCN-NEXT: s_waitcnt lgkmcnt(0) ; GCN-NEXT: s_load_dword s2, s[0:1], 0x0 ; GCN-NEXT: s_waitcnt lgkmcnt(0) ; GCN-NEXT: s_barrier ; GCN-NEXT: ; wave barrier ; GCN-NEXT: s_load_dword s3, s[0:1], 0x4 ; GCN-NEXT: s_waitcnt lgkmcnt(0) ; GCN-NEXT: s_add_i32 s2, s3, s2 ; GCN-NEXT: v_mov_b32_e32 v1, s2 ; GCN-NEXT: global_store_dword v0, v1, s[0:1] offset:8 ; GCN-NEXT: s_endpgm bb: %i = load i32, ptr addrspace(1) %arg, align 4 fence syncscope("workgroup") release tail call void @llvm.amdgcn.s.barrier() fence syncscope("workgroup") acquire tail call void @llvm.amdgcn.wave.barrier() %i1 = getelementptr inbounds i32, ptr addrspace(1) %arg, i64 1 %i2 = load i32, ptr addrspace(1) %i1, align 4 %i3 = add i32 %i2, %i %i4 = getelementptr inbounds i32, ptr addrspace(1) %arg, i64 2 store i32 %i3, ptr addrspace(1) %i4, align 4 ret void } define amdgpu_kernel void @memory_phi_no_clobber(ptr addrspace(1) %arg, i1 %cond) { ; CHECK-LABEL: @memory_phi_no_clobber( ; CHECK-NEXT: bb: ; CHECK-NEXT: [[I:%.*]] = load i32, ptr addrspace(1) [[ARG:%.*]], align 4, !amdgpu.noclobber [[META0]] ; CHECK-NEXT: br i1 [[COND:%.*]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]], !amdgpu.uniform [[META0]] ; CHECK: if.then: ; CHECK-NEXT: tail call void @llvm.amdgcn.s.barrier() ; CHECK-NEXT: br label [[IF_END:%.*]] ; CHECK: if.else: ; CHECK-NEXT: fence syncscope("workgroup") release ; CHECK-NEXT: br label [[IF_END]] ; CHECK: if.end: ; CHECK-NEXT: [[I1:%.*]] = getelementptr inbounds i32, ptr addrspace(1) [[ARG]], i64 1, !amdgpu.uniform [[META0]] ; CHECK-NEXT: [[I2:%.*]] = load i32, ptr addrspace(1) [[I1]], align 4, !amdgpu.noclobber [[META0]] ; CHECK-NEXT: [[I3:%.*]] = add i32 [[I2]], [[I]] ; CHECK-NEXT: [[I4:%.*]] = getelementptr inbounds i32, ptr addrspace(1) [[ARG]], i64 2 ; CHECK-NEXT: store i32 [[I3]], ptr addrspace(1) [[I4]], align 4 ; CHECK-NEXT: ret void ; ; GCN-LABEL: memory_phi_no_clobber: ; GCN: ; %bb.0: ; %bb ; GCN-NEXT: s_load_dwordx2 s[0:1], s[4:5], 0x24 ; GCN-NEXT: s_load_dword s2, s[4:5], 0x2c ; GCN-NEXT: s_waitcnt lgkmcnt(0) ; GCN-NEXT: s_bitcmp0_b32 s2, 0 ; GCN-NEXT: s_load_dword s4, s[0:1], 0x0 ; GCN-NEXT: s_mov_b64 s[2:3], -1 ; GCN-NEXT: s_cbranch_scc0 .LBB1_2 ; GCN-NEXT: ; %bb.1: ; %if.else ; GCN-NEXT: s_waitcnt lgkmcnt(0) ; GCN-NEXT: s_mov_b64 s[2:3], 0 ; GCN-NEXT: .LBB1_2: ; %Flow ; GCN-NEXT: s_andn2_b64 vcc, exec, s[2:3] ; GCN-NEXT: s_cbranch_vccnz .LBB1_4 ; GCN-NEXT: ; %bb.3: ; %if.then ; GCN-NEXT: s_waitcnt lgkmcnt(0) ; GCN-NEXT: s_barrier ; GCN-NEXT: .LBB1_4: ; %if.end ; GCN-NEXT: s_load_dword s2, s[0:1], 0x4 ; GCN-NEXT: v_mov_b32_e32 v0, 0 ; GCN-NEXT: s_waitcnt lgkmcnt(0) ; GCN-NEXT: s_add_i32 s2, s2, s4 ; GCN-NEXT: v_mov_b32_e32 v1, s2 ; GCN-NEXT: global_store_dword v0, v1, s[0:1] offset:8 ; GCN-NEXT: s_endpgm bb: %i = load i32, ptr addrspace(1) %arg, align 4 br i1 %cond, label %if.then, label %if.else if.then: tail call void @llvm.amdgcn.s.barrier() br label %if.end if.else: fence syncscope("workgroup") release br label %if.end if.end: %i1 = getelementptr inbounds i32, ptr addrspace(1) %arg, i64 1 %i2 = load i32, ptr addrspace(1) %i1, align 4 %i3 = add i32 %i2, %i %i4 = getelementptr inbounds i32, ptr addrspace(1) %arg, i64 2 store i32 %i3, ptr addrspace(1) %i4, align 4 ret void } define amdgpu_kernel void @memory_phi_clobber1(ptr addrspace(1) %arg, i1 %cond) { ; CHECK-LABEL: @memory_phi_clobber1( ; CHECK-NEXT: bb: ; CHECK-NEXT: [[I:%.*]] = load i32, ptr addrspace(1) [[ARG:%.*]], align 4, !amdgpu.noclobber [[META0]] ; CHECK-NEXT: br i1 [[COND:%.*]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]], !amdgpu.uniform [[META0]] ; CHECK: if.then: ; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds i32, ptr addrspace(1) [[ARG]], i64 3 ; CHECK-NEXT: store i32 1, ptr addrspace(1) [[GEP]], align 4 ; CHECK-NEXT: br label [[IF_END:%.*]] ; CHECK: if.else: ; CHECK-NEXT: tail call void @llvm.amdgcn.s.barrier() ; CHECK-NEXT: br label [[IF_END]] ; CHECK: if.end: ; CHECK-NEXT: [[I1:%.*]] = getelementptr inbounds i32, ptr addrspace(1) [[ARG]], i64 1, !amdgpu.uniform [[META0]] ; CHECK-NEXT: [[I2:%.*]] = load i32, ptr addrspace(1) [[I1]], align 4 ; CHECK-NEXT: [[I3:%.*]] = add i32 [[I2]], [[I]] ; CHECK-NEXT: [[I4:%.*]] = getelementptr inbounds i32, ptr addrspace(1) [[ARG]], i64 2 ; CHECK-NEXT: store i32 [[I3]], ptr addrspace(1) [[I4]], align 4 ; CHECK-NEXT: ret void ; ; GCN-LABEL: memory_phi_clobber1: ; GCN: ; %bb.0: ; %bb ; GCN-NEXT: s_load_dwordx2 s[0:1], s[4:5], 0x24 ; GCN-NEXT: s_load_dword s2, s[4:5], 0x2c ; GCN-NEXT: s_waitcnt lgkmcnt(0) ; GCN-NEXT: s_bitcmp0_b32 s2, 0 ; GCN-NEXT: s_load_dword s4, s[0:1], 0x0 ; GCN-NEXT: s_mov_b64 s[2:3], -1 ; GCN-NEXT: s_cbranch_scc0 .LBB2_2 ; GCN-NEXT: ; %bb.1: ; %if.else ; GCN-NEXT: s_waitcnt lgkmcnt(0) ; GCN-NEXT: s_barrier ; GCN-NEXT: s_mov_b64 s[2:3], 0 ; GCN-NEXT: .LBB2_2: ; %Flow ; GCN-NEXT: s_andn2_b64 vcc, exec, s[2:3] ; GCN-NEXT: s_cbranch_vccnz .LBB2_4 ; GCN-NEXT: ; %bb.3: ; %if.then ; GCN-NEXT: v_mov_b32_e32 v0, 0 ; GCN-NEXT: v_mov_b32_e32 v1, 1 ; GCN-NEXT: global_store_dword v0, v1, s[0:1] offset:12 ; GCN-NEXT: .LBB2_4: ; %if.end ; GCN-NEXT: v_mov_b32_e32 v0, 0 ; GCN-NEXT: global_load_dword v1, v0, s[0:1] offset:4 ; GCN-NEXT: s_waitcnt vmcnt(0) lgkmcnt(0) ; GCN-NEXT: v_add_u32_e32 v1, s4, v1 ; GCN-NEXT: global_store_dword v0, v1, s[0:1] offset:8 ; GCN-NEXT: s_endpgm bb: %i = load i32, ptr addrspace(1) %arg, align 4 br i1 %cond, label %if.then, label %if.else if.then: %gep = getelementptr inbounds i32, ptr addrspace(1) %arg, i64 3 store i32 1, ptr addrspace(1) %gep, align 4 br label %if.end if.else: tail call void @llvm.amdgcn.s.barrier() br label %if.end if.end: %i1 = getelementptr inbounds i32, ptr addrspace(1) %arg, i64 1 %i2 = load i32, ptr addrspace(1) %i1, align 4 %i3 = add i32 %i2, %i %i4 = getelementptr inbounds i32, ptr addrspace(1) %arg, i64 2 store i32 %i3, ptr addrspace(1) %i4, align 4 ret void } define amdgpu_kernel void @memory_phi_clobber2(ptr addrspace(1) %arg, i1 %cond) { ; CHECK-LABEL: @memory_phi_clobber2( ; CHECK-NEXT: bb: ; CHECK-NEXT: [[I:%.*]] = load i32, ptr addrspace(1) [[ARG:%.*]], align 4, !amdgpu.noclobber [[META0]] ; CHECK-NEXT: br i1 [[COND:%.*]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]], !amdgpu.uniform [[META0]] ; CHECK: if.then: ; CHECK-NEXT: tail call void @llvm.amdgcn.s.barrier() ; CHECK-NEXT: br label [[IF_END:%.*]] ; CHECK: if.else: ; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds i32, ptr addrspace(1) [[ARG]], i64 3 ; CHECK-NEXT: store i32 1, ptr addrspace(1) [[GEP]], align 4 ; CHECK-NEXT: br label [[IF_END]] ; CHECK: if.end: ; CHECK-NEXT: [[I1:%.*]] = getelementptr inbounds i32, ptr addrspace(1) [[ARG]], i64 1, !amdgpu.uniform [[META0]] ; CHECK-NEXT: [[I2:%.*]] = load i32, ptr addrspace(1) [[I1]], align 4 ; CHECK-NEXT: [[I3:%.*]] = add i32 [[I2]], [[I]] ; CHECK-NEXT: [[I4:%.*]] = getelementptr inbounds i32, ptr addrspace(1) [[ARG]], i64 2 ; CHECK-NEXT: store i32 [[I3]], ptr addrspace(1) [[I4]], align 4 ; CHECK-NEXT: ret void ; ; GCN-LABEL: memory_phi_clobber2: ; GCN: ; %bb.0: ; %bb ; GCN-NEXT: s_load_dword s2, s[4:5], 0x2c ; GCN-NEXT: s_load_dwordx2 s[0:1], s[4:5], 0x24 ; GCN-NEXT: s_waitcnt lgkmcnt(0) ; GCN-NEXT: s_bitcmp0_b32 s2, 0 ; GCN-NEXT: s_mov_b64 s[2:3], -1 ; GCN-NEXT: s_cbranch_scc0 .LBB3_2 ; GCN-NEXT: ; %bb.1: ; %if.else ; GCN-NEXT: v_mov_b32_e32 v0, 0 ; GCN-NEXT: v_mov_b32_e32 v1, 1 ; GCN-NEXT: global_store_dword v0, v1, s[0:1] offset:12 ; GCN-NEXT: s_mov_b64 s[2:3], 0 ; GCN-NEXT: .LBB3_2: ; %Flow ; GCN-NEXT: s_load_dword s4, s[0:1], 0x0 ; GCN-NEXT: s_andn2_b64 vcc, exec, s[2:3] ; GCN-NEXT: s_cbranch_vccnz .LBB3_4 ; GCN-NEXT: ; %bb.3: ; %if.then ; GCN-NEXT: s_waitcnt vmcnt(0) lgkmcnt(0) ; GCN-NEXT: s_barrier ; GCN-NEXT: .LBB3_4: ; %if.end ; GCN-NEXT: v_mov_b32_e32 v0, 0 ; GCN-NEXT: global_load_dword v1, v0, s[0:1] offset:4 ; GCN-NEXT: s_waitcnt vmcnt(0) lgkmcnt(0) ; GCN-NEXT: v_add_u32_e32 v1, s4, v1 ; GCN-NEXT: global_store_dword v0, v1, s[0:1] offset:8 ; GCN-NEXT: s_endpgm bb: %i = load i32, ptr addrspace(1) %arg, align 4 br i1 %cond, label %if.then, label %if.else if.then: tail call void @llvm.amdgcn.s.barrier() br label %if.end if.else: %gep = getelementptr inbounds i32, ptr addrspace(1) %arg, i64 3 store i32 1, ptr addrspace(1) %gep, align 4 br label %if.end if.end: %i1 = getelementptr inbounds i32, ptr addrspace(1) %arg, i64 1 %i2 = load i32, ptr addrspace(1) %i1, align 4 %i3 = add i32 %i2, %i %i4 = getelementptr inbounds i32, ptr addrspace(1) %arg, i64 2 store i32 %i3, ptr addrspace(1) %i4, align 4 ret void } define amdgpu_kernel void @no_clobbering_loop1(ptr addrspace(1) %arg, i1 %cc) { ; CHECK-LABEL: @no_clobbering_loop1( ; CHECK-NEXT: bb: ; CHECK-NEXT: [[I:%.*]] = load i32, ptr addrspace(1) [[ARG:%.*]], align 4, !amdgpu.noclobber [[META0]] ; CHECK-NEXT: br label [[WHILE_COND:%.*]] ; CHECK: while.cond: ; CHECK-NEXT: [[I1:%.*]] = getelementptr inbounds i32, ptr addrspace(1) [[ARG]], i64 1, !amdgpu.uniform [[META0]] ; CHECK-NEXT: [[I2:%.*]] = load i32, ptr addrspace(1) [[I1]], align 4, !amdgpu.noclobber [[META0]] ; CHECK-NEXT: [[I3:%.*]] = add i32 [[I2]], [[I]] ; CHECK-NEXT: [[I4:%.*]] = getelementptr inbounds i32, ptr addrspace(1) [[ARG]], i64 2 ; CHECK-NEXT: store i32 [[I3]], ptr addrspace(1) [[I4]], align 4 ; CHECK-NEXT: tail call void @llvm.amdgcn.wave.barrier() ; CHECK-NEXT: br i1 [[CC:%.*]], label [[WHILE_COND]], label [[END:%.*]], !amdgpu.uniform [[META0]] ; CHECK: end: ; CHECK-NEXT: ret void ; ; GCN-LABEL: no_clobbering_loop1: ; GCN: ; %bb.0: ; %bb ; GCN-NEXT: s_load_dword s0, s[4:5], 0x2c ; GCN-NEXT: s_load_dwordx2 s[2:3], s[4:5], 0x24 ; GCN-NEXT: v_mov_b32_e32 v0, 0 ; GCN-NEXT: s_waitcnt lgkmcnt(0) ; GCN-NEXT: s_bitcmp1_b32 s0, 0 ; GCN-NEXT: s_load_dword s4, s[2:3], 0x0 ; GCN-NEXT: s_cselect_b64 s[0:1], -1, 0 ; GCN-NEXT: s_xor_b64 s[0:1], s[0:1], -1 ; GCN-NEXT: v_cndmask_b32_e64 v1, 0, 1, s[0:1] ; GCN-NEXT: v_cmp_ne_u32_e64 s[0:1], 1, v1 ; GCN-NEXT: .LBB4_1: ; %while.cond ; GCN-NEXT: ; =>This Inner Loop Header: Depth=1 ; GCN-NEXT: s_load_dword s5, s[2:3], 0x4 ; GCN-NEXT: s_and_b64 vcc, exec, s[0:1] ; GCN-NEXT: s_waitcnt lgkmcnt(0) ; GCN-NEXT: s_add_i32 s5, s5, s4 ; GCN-NEXT: v_mov_b32_e32 v1, s5 ; GCN-NEXT: global_store_dword v0, v1, s[2:3] offset:8 ; GCN-NEXT: ; wave barrier ; GCN-NEXT: s_cbranch_vccnz .LBB4_1 ; GCN-NEXT: ; %bb.2: ; %end ; GCN-NEXT: s_endpgm bb: %i = load i32, ptr addrspace(1) %arg, align 4 br label %while.cond while.cond: %i1 = getelementptr inbounds i32, ptr addrspace(1) %arg, i64 1 %i2 = load i32, ptr addrspace(1) %i1, align 4 %i3 = add i32 %i2, %i %i4 = getelementptr inbounds i32, ptr addrspace(1) %arg, i64 2 store i32 %i3, ptr addrspace(1) %i4, align 4 tail call void @llvm.amdgcn.wave.barrier() br i1 %cc, label %while.cond, label %end end: ret void } define amdgpu_kernel void @no_clobbering_loop2(ptr addrspace(1) noalias %arg, ptr addrspace(1) noalias %out, i32 %n) { ; CHECK-LABEL: @no_clobbering_loop2( ; CHECK-NEXT: bb: ; CHECK-NEXT: [[I:%.*]] = load i32, ptr addrspace(1) [[ARG:%.*]], align 4, !amdgpu.noclobber [[META0]] ; CHECK-NEXT: br label [[WHILE_COND:%.*]] ; CHECK: while.cond: ; CHECK-NEXT: [[C:%.*]] = phi i32 [ 0, [[BB:%.*]] ], [ [[INC:%.*]], [[WHILE_COND]] ] ; CHECK-NEXT: [[ACC:%.*]] = phi i32 [ [[I]], [[BB]] ], [ [[I3:%.*]], [[WHILE_COND]] ] ; CHECK-NEXT: [[I1:%.*]] = getelementptr inbounds i32, ptr addrspace(1) [[ARG]], i32 [[C]], !amdgpu.uniform [[META0]] ; CHECK-NEXT: [[I2:%.*]] = load i32, ptr addrspace(1) [[I1]], align 4, !amdgpu.noclobber [[META0]] ; CHECK-NEXT: [[I3]] = add i32 [[I2]], [[ACC]] ; CHECK-NEXT: tail call void @llvm.amdgcn.wave.barrier() ; CHECK-NEXT: [[INC]] = add nuw nsw i32 [[C]], 1 ; CHECK-NEXT: [[CC:%.*]] = icmp eq i32 [[INC]], [[N:%.*]] ; CHECK-NEXT: br i1 [[CC]], label [[WHILE_COND]], label [[END:%.*]], !amdgpu.uniform [[META0]] ; CHECK: end: ; CHECK-NEXT: store i32 [[I3]], ptr addrspace(1) [[OUT:%.*]], align 4 ; CHECK-NEXT: ret void ; ; GCN-LABEL: no_clobbering_loop2: ; GCN: ; %bb.0: ; %bb ; GCN-NEXT: s_load_dwordx4 s[0:3], s[4:5], 0x24 ; GCN-NEXT: s_load_dword s6, s[4:5], 0x34 ; GCN-NEXT: s_waitcnt lgkmcnt(0) ; GCN-NEXT: s_load_dword s4, s[0:1], 0x0 ; GCN-NEXT: .LBB5_1: ; %while.cond ; GCN-NEXT: ; =>This Inner Loop Header: Depth=1 ; GCN-NEXT: s_load_dword s5, s[0:1], 0x0 ; GCN-NEXT: ; wave barrier ; GCN-NEXT: s_waitcnt lgkmcnt(0) ; GCN-NEXT: s_add_i32 s4, s5, s4 ; GCN-NEXT: s_add_u32 s0, s0, 4 ; GCN-NEXT: s_addc_u32 s1, s1, 0 ; GCN-NEXT: s_add_i32 s6, s6, -1 ; GCN-NEXT: s_cmp_eq_u32 s6, 0 ; GCN-NEXT: s_cbranch_scc1 .LBB5_1 ; GCN-NEXT: ; %bb.2: ; %end ; GCN-NEXT: v_mov_b32_e32 v0, 0 ; GCN-NEXT: v_mov_b32_e32 v1, s4 ; GCN-NEXT: global_store_dword v0, v1, s[2:3] ; GCN-NEXT: s_endpgm bb: %i = load i32, ptr addrspace(1) %arg, align 4 br label %while.cond while.cond: %c = phi i32 [ 0, %bb ], [ %inc, %while.cond ] %acc = phi i32 [ %i, %bb ], [ %i3, %while.cond ] %i1 = getelementptr inbounds i32, ptr addrspace(1) %arg, i32 %c %i2 = load i32, ptr addrspace(1) %i1, align 4 %i3 = add i32 %i2, %acc tail call void @llvm.amdgcn.wave.barrier() %inc = add nuw nsw i32 %c, 1 %cc = icmp eq i32 %inc, %n br i1 %cc, label %while.cond, label %end end: store i32 %i3, ptr addrspace(1) %out, align 4 ret void } define amdgpu_kernel void @clobbering_loop(ptr addrspace(1) %arg, ptr addrspace(1) %out, i1 %cc) { ; CHECK-LABEL: @clobbering_loop( ; CHECK-NEXT: bb: ; CHECK-NEXT: [[I:%.*]] = load i32, ptr addrspace(1) [[ARG:%.*]], align 4, !amdgpu.noclobber [[META0]] ; CHECK-NEXT: br label [[WHILE_COND:%.*]] ; CHECK: while.cond: ; CHECK-NEXT: [[I1:%.*]] = getelementptr inbounds i32, ptr addrspace(1) [[ARG]], i64 1, !amdgpu.uniform [[META0]] ; CHECK-NEXT: [[I2:%.*]] = load i32, ptr addrspace(1) [[I1]], align 4 ; CHECK-NEXT: [[I3:%.*]] = add i32 [[I2]], [[I]] ; CHECK-NEXT: [[I4:%.*]] = getelementptr inbounds i32, ptr addrspace(1) [[OUT:%.*]], i64 1 ; CHECK-NEXT: store i32 [[I3]], ptr addrspace(1) [[I4]], align 4 ; CHECK-NEXT: tail call void @llvm.amdgcn.wave.barrier() ; CHECK-NEXT: br i1 [[CC:%.*]], label [[WHILE_COND]], label [[END:%.*]], !amdgpu.uniform [[META0]] ; CHECK: end: ; CHECK-NEXT: ret void ; ; GCN-LABEL: clobbering_loop: ; GCN: ; %bb.0: ; %bb ; GCN-NEXT: s_load_dword s0, s[4:5], 0x34 ; GCN-NEXT: s_load_dwordx4 s[8:11], s[4:5], 0x24 ; GCN-NEXT: v_mov_b32_e32 v0, 0 ; GCN-NEXT: s_waitcnt lgkmcnt(0) ; GCN-NEXT: s_bitcmp1_b32 s0, 0 ; GCN-NEXT: s_load_dword s2, s[8:9], 0x0 ; GCN-NEXT: s_cselect_b64 s[0:1], -1, 0 ; GCN-NEXT: s_xor_b64 s[0:1], s[0:1], -1 ; GCN-NEXT: v_cndmask_b32_e64 v1, 0, 1, s[0:1] ; GCN-NEXT: v_cmp_ne_u32_e64 s[0:1], 1, v1 ; GCN-NEXT: .LBB6_1: ; %while.cond ; GCN-NEXT: ; =>This Inner Loop Header: Depth=1 ; GCN-NEXT: global_load_dword v1, v0, s[8:9] offset:4 ; GCN-NEXT: s_and_b64 vcc, exec, s[0:1] ; GCN-NEXT: s_waitcnt vmcnt(0) lgkmcnt(0) ; GCN-NEXT: v_add_u32_e32 v1, s2, v1 ; GCN-NEXT: global_store_dword v0, v1, s[10:11] offset:4 ; GCN-NEXT: ; wave barrier ; GCN-NEXT: s_cbranch_vccnz .LBB6_1 ; GCN-NEXT: ; %bb.2: ; %end ; GCN-NEXT: s_endpgm bb: %i = load i32, ptr addrspace(1) %arg, align 4 br label %while.cond while.cond: %i1 = getelementptr inbounds i32, ptr addrspace(1) %arg, i64 1 %i2 = load i32, ptr addrspace(1) %i1, align 4 %i3 = add i32 %i2, %i %i4 = getelementptr inbounds i32, ptr addrspace(1) %out, i64 1 store i32 %i3, ptr addrspace(1) %i4, align 4 tail call void @llvm.amdgcn.wave.barrier() br i1 %cc, label %while.cond, label %end end: ret void } define amdgpu_kernel void @clobber_by_atomic_load(ptr addrspace(1) %arg) { ; CHECK-LABEL: @clobber_by_atomic_load( ; CHECK-NEXT: bb: ; CHECK-NEXT: [[I:%.*]] = load i32, ptr addrspace(1) [[ARG:%.*]], align 4, !amdgpu.noclobber [[META0]] ; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds i32, ptr addrspace(1) [[ARG]], i64 2, !amdgpu.uniform [[META0]] ; CHECK-NEXT: [[VAL:%.*]] = load atomic i32, ptr addrspace(1) [[GEP]] seq_cst, align 4, !amdgpu.noclobber [[META0]] ; CHECK-NEXT: [[I1:%.*]] = getelementptr inbounds i32, ptr addrspace(1) [[ARG]], i64 3, !amdgpu.uniform [[META0]] ; CHECK-NEXT: [[I2:%.*]] = load i32, ptr addrspace(1) [[I1]], align 4 ; CHECK-NEXT: [[I3:%.*]] = add i32 [[I2]], [[I]] ; CHECK-NEXT: [[I4:%.*]] = getelementptr inbounds i32, ptr addrspace(1) [[ARG]], i64 4 ; CHECK-NEXT: store i32 [[I3]], ptr addrspace(1) [[I4]], align 4 ; CHECK-NEXT: ret void ; ; GCN-LABEL: clobber_by_atomic_load: ; GCN: ; %bb.0: ; %bb ; GCN-NEXT: s_load_dwordx2 s[0:1], s[4:5], 0x24 ; GCN-NEXT: v_mov_b32_e32 v0, 0 ; GCN-NEXT: s_waitcnt lgkmcnt(0) ; GCN-NEXT: s_load_dword s2, s[0:1], 0x0 ; GCN-NEXT: s_waitcnt lgkmcnt(0) ; GCN-NEXT: global_load_dword v1, v0, s[0:1] offset:8 glc ; GCN-NEXT: s_waitcnt vmcnt(0) ; GCN-NEXT: buffer_wbinvl1_vol ; GCN-NEXT: global_load_dword v1, v0, s[0:1] offset:12 ; GCN-NEXT: s_waitcnt vmcnt(0) ; GCN-NEXT: v_add_u32_e32 v1, s2, v1 ; GCN-NEXT: global_store_dword v0, v1, s[0:1] offset:16 ; GCN-NEXT: s_endpgm bb: %i = load i32, ptr addrspace(1) %arg, align 4 %gep = getelementptr inbounds i32, ptr addrspace(1) %arg, i64 2 %val = load atomic i32, ptr addrspace(1) %gep seq_cst, align 4 %i1 = getelementptr inbounds i32, ptr addrspace(1) %arg, i64 3 %i2 = load i32, ptr addrspace(1) %i1, align 4 %i3 = add i32 %i2, %i %i4 = getelementptr inbounds i32, ptr addrspace(1) %arg, i64 4 store i32 %i3, ptr addrspace(1) %i4, align 4 ret void } define protected amdgpu_kernel void @no_alias_store(ptr addrspace(1) %in, ptr addrspace(1) %out) { ; CHECK-LABEL: @no_alias_store( ; CHECK-NEXT: entry: ; CHECK-NEXT: store i32 0, ptr addrspace(3) @LDS, align 4 ; CHECK-NEXT: fence syncscope("workgroup") release ; CHECK-NEXT: tail call void @llvm.amdgcn.s.barrier() ; CHECK-NEXT: fence syncscope("workgroup") acquire ; CHECK-NEXT: [[LD:%.*]] = load i32, ptr addrspace(1) [[IN:%.*]], align 4, !amdgpu.noclobber [[META0]] ; CHECK-NEXT: store i32 [[LD]], ptr addrspace(1) [[OUT:%.*]], align 4 ; CHECK-NEXT: ret void ; ; GCN-LABEL: no_alias_store: ; GCN: ; %bb.0: ; %entry ; GCN-NEXT: s_load_dwordx4 s[0:3], s[4:5], 0x24 ; GCN-NEXT: v_mov_b32_e32 v0, 0 ; GCN-NEXT: ds_write_b32 v0, v0 ; GCN-NEXT: s_waitcnt lgkmcnt(0) ; GCN-NEXT: s_barrier ; GCN-NEXT: s_load_dword s0, s[0:1], 0x0 ; GCN-NEXT: s_waitcnt lgkmcnt(0) ; GCN-NEXT: v_mov_b32_e32 v1, s0 ; GCN-NEXT: global_store_dword v0, v1, s[2:3] ; GCN-NEXT: s_endpgm entry: store i32 0, ptr addrspace(3) @LDS, align 4 fence syncscope("workgroup") release tail call void @llvm.amdgcn.s.barrier() fence syncscope("workgroup") acquire %ld = load i32, ptr addrspace(1) %in, align 4 store i32 %ld, ptr addrspace(1) %out, align 4 ret void } define protected amdgpu_kernel void @may_alias_store(ptr addrspace(1) %in, ptr addrspace(1) %out) { ; CHECK-LABEL: @may_alias_store( ; CHECK-NEXT: entry: ; CHECK-NEXT: store i32 0, ptr addrspace(1) [[OUT:%.*]], align 4 ; CHECK-NEXT: fence syncscope("workgroup") release ; CHECK-NEXT: tail call void @llvm.amdgcn.s.barrier() ; CHECK-NEXT: fence syncscope("workgroup") acquire ; CHECK-NEXT: [[LD:%.*]] = load i32, ptr addrspace(1) [[IN:%.*]], align 4 ; CHECK-NEXT: store i32 [[LD]], ptr addrspace(1) [[OUT]], align 4 ; CHECK-NEXT: ret void ; ; GCN-LABEL: may_alias_store: ; GCN: ; %bb.0: ; %entry ; GCN-NEXT: s_load_dwordx4 s[0:3], s[4:5], 0x24 ; GCN-NEXT: v_mov_b32_e32 v0, 0 ; GCN-NEXT: s_waitcnt lgkmcnt(0) ; GCN-NEXT: global_store_dword v0, v0, s[2:3] ; GCN-NEXT: s_waitcnt vmcnt(0) ; GCN-NEXT: s_barrier ; GCN-NEXT: global_load_dword v1, v0, s[0:1] ; GCN-NEXT: s_waitcnt vmcnt(0) ; GCN-NEXT: global_store_dword v0, v1, s[2:3] ; GCN-NEXT: s_endpgm entry: store i32 0, ptr addrspace(1) %out, align 4 fence syncscope("workgroup") release tail call void @llvm.amdgcn.s.barrier() fence syncscope("workgroup") acquire %ld = load i32, ptr addrspace(1) %in, align 4 store i32 %ld, ptr addrspace(1) %out, align 4 ret void } define protected amdgpu_kernel void @no_alias_volatile_store(ptr addrspace(1) %in, ptr addrspace(1) %out) { ; CHECK-LABEL: @no_alias_volatile_store( ; CHECK-NEXT: entry: ; CHECK-NEXT: store volatile i32 0, ptr addrspace(3) @LDS, align 4 ; CHECK-NEXT: fence syncscope("workgroup") release ; CHECK-NEXT: tail call void @llvm.amdgcn.s.barrier() ; CHECK-NEXT: fence syncscope("workgroup") acquire ; CHECK-NEXT: [[LD:%.*]] = load i32, ptr addrspace(1) [[IN:%.*]], align 4, !amdgpu.noclobber [[META0]] ; CHECK-NEXT: store i32 [[LD]], ptr addrspace(1) [[OUT:%.*]], align 4 ; CHECK-NEXT: ret void ; ; GCN-LABEL: no_alias_volatile_store: ; GCN: ; %bb.0: ; %entry ; GCN-NEXT: s_load_dwordx4 s[0:3], s[4:5], 0x24 ; GCN-NEXT: v_mov_b32_e32 v0, 0 ; GCN-NEXT: ds_write_b32 v0, v0 ; GCN-NEXT: s_waitcnt lgkmcnt(0) ; GCN-NEXT: s_barrier ; GCN-NEXT: s_load_dword s0, s[0:1], 0x0 ; GCN-NEXT: s_waitcnt lgkmcnt(0) ; GCN-NEXT: v_mov_b32_e32 v1, s0 ; GCN-NEXT: global_store_dword v0, v1, s[2:3] ; GCN-NEXT: s_endpgm entry: store volatile i32 0, ptr addrspace(3) @LDS, align 4 fence syncscope("workgroup") release tail call void @llvm.amdgcn.s.barrier() fence syncscope("workgroup") acquire %ld = load i32, ptr addrspace(1) %in, align 4 store i32 %ld, ptr addrspace(1) %out, align 4 ret void } define protected amdgpu_kernel void @no_alias_atomic_rmw_relaxed(ptr addrspace(1) %in, ptr addrspace(1) %out) { ; CHECK-LABEL: @no_alias_atomic_rmw_relaxed( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[UNUSED:%.*]] = atomicrmw add ptr addrspace(3) @LDS, i32 5 monotonic, align 4 ; CHECK-NEXT: [[LD:%.*]] = load i32, ptr addrspace(1) [[IN:%.*]], align 4, !amdgpu.noclobber [[META0]] ; CHECK-NEXT: store i32 [[LD]], ptr addrspace(1) [[OUT:%.*]], align 4 ; CHECK-NEXT: ret void ; ; GCN-LABEL: no_alias_atomic_rmw_relaxed: ; GCN: ; %bb.0: ; %entry ; GCN-NEXT: s_load_dwordx4 s[0:3], s[4:5], 0x24 ; GCN-NEXT: v_mov_b32_e32 v0, 5 ; GCN-NEXT: v_mov_b32_e32 v1, 0 ; GCN-NEXT: ds_add_u32 v1, v0 ; GCN-NEXT: s_waitcnt lgkmcnt(0) ; GCN-NEXT: s_load_dword s0, s[0:1], 0x0 ; GCN-NEXT: s_waitcnt lgkmcnt(0) ; GCN-NEXT: v_mov_b32_e32 v0, s0 ; GCN-NEXT: global_store_dword v1, v0, s[2:3] ; GCN-NEXT: s_endpgm entry: %unused = atomicrmw add ptr addrspace(3) @LDS, i32 5 monotonic %ld = load i32, ptr addrspace(1) %in, align 4 store i32 %ld, ptr addrspace(1) %out, align 4 ret void } define protected amdgpu_kernel void @no_alias_atomic_cmpxchg(ptr addrspace(1) %in, ptr addrspace(1) %out, i32 %swap) { ; CHECK-LABEL: @no_alias_atomic_cmpxchg( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[UNUSED:%.*]] = cmpxchg ptr addrspace(3) @LDS, i32 7, i32 [[SWAP:%.*]] seq_cst monotonic, align 4 ; CHECK-NEXT: fence syncscope("workgroup") release ; CHECK-NEXT: tail call void @llvm.amdgcn.s.barrier() ; CHECK-NEXT: fence syncscope("workgroup") acquire ; CHECK-NEXT: [[LD:%.*]] = load i32, ptr addrspace(1) [[IN:%.*]], align 4, !amdgpu.noclobber [[META0]] ; CHECK-NEXT: store i32 [[LD]], ptr addrspace(1) [[OUT:%.*]], align 4 ; CHECK-NEXT: ret void ; ; GCN-LABEL: no_alias_atomic_cmpxchg: ; GCN: ; %bb.0: ; %entry ; GCN-NEXT: s_load_dword s6, s[4:5], 0x34 ; GCN-NEXT: s_load_dwordx4 s[0:3], s[4:5], 0x24 ; GCN-NEXT: v_mov_b32_e32 v0, 7 ; GCN-NEXT: v_mov_b32_e32 v1, 0 ; GCN-NEXT: s_waitcnt lgkmcnt(0) ; GCN-NEXT: v_mov_b32_e32 v2, s6 ; GCN-NEXT: ds_cmpst_b32 v1, v0, v2 ; GCN-NEXT: s_waitcnt lgkmcnt(0) ; GCN-NEXT: s_barrier ; GCN-NEXT: s_load_dword s0, s[0:1], 0x0 ; GCN-NEXT: s_waitcnt lgkmcnt(0) ; GCN-NEXT: v_mov_b32_e32 v0, s0 ; GCN-NEXT: global_store_dword v1, v0, s[2:3] ; GCN-NEXT: s_endpgm entry: %unused = cmpxchg ptr addrspace(3) @LDS, i32 7, i32 %swap seq_cst monotonic fence syncscope("workgroup") release tail call void @llvm.amdgcn.s.barrier() fence syncscope("workgroup") acquire %ld = load i32, ptr addrspace(1) %in, align 4 store i32 %ld, ptr addrspace(1) %out, align 4 ret void } define protected amdgpu_kernel void @no_alias_atomic_rmw(ptr addrspace(1) %in, ptr addrspace(1) %out) { ; CHECK-LABEL: @no_alias_atomic_rmw( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[UNUSED:%.*]] = atomicrmw add ptr addrspace(3) @LDS, i32 5 seq_cst, align 4 ; CHECK-NEXT: fence syncscope("workgroup") release ; CHECK-NEXT: tail call void @llvm.amdgcn.s.barrier() ; CHECK-NEXT: fence syncscope("workgroup") acquire ; CHECK-NEXT: [[LD:%.*]] = load i32, ptr addrspace(1) [[IN:%.*]], align 4, !amdgpu.noclobber [[META0]] ; CHECK-NEXT: store i32 [[LD]], ptr addrspace(1) [[OUT:%.*]], align 4 ; CHECK-NEXT: ret void ; ; GCN-LABEL: no_alias_atomic_rmw: ; GCN: ; %bb.0: ; %entry ; GCN-NEXT: s_load_dwordx4 s[0:3], s[4:5], 0x24 ; GCN-NEXT: v_mov_b32_e32 v0, 5 ; GCN-NEXT: v_mov_b32_e32 v1, 0 ; GCN-NEXT: s_waitcnt lgkmcnt(0) ; GCN-NEXT: ds_add_u32 v1, v0 ; GCN-NEXT: s_waitcnt lgkmcnt(0) ; GCN-NEXT: s_barrier ; GCN-NEXT: s_load_dword s0, s[0:1], 0x0 ; GCN-NEXT: s_waitcnt lgkmcnt(0) ; GCN-NEXT: v_mov_b32_e32 v0, s0 ; GCN-NEXT: global_store_dword v1, v0, s[2:3] ; GCN-NEXT: s_endpgm entry: %unused = atomicrmw add ptr addrspace(3) @LDS, i32 5 seq_cst fence syncscope("workgroup") release tail call void @llvm.amdgcn.s.barrier() fence syncscope("workgroup") acquire %ld = load i32, ptr addrspace(1) %in, align 4 store i32 %ld, ptr addrspace(1) %out, align 4 ret void } define protected amdgpu_kernel void @may_alias_atomic_cmpxchg(ptr addrspace(1) %in, ptr addrspace(1) %out, i32 %swap) { ; CHECK-LABEL: @may_alias_atomic_cmpxchg( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[UNUSED:%.*]] = cmpxchg ptr addrspace(1) [[OUT:%.*]], i32 7, i32 [[SWAP:%.*]] seq_cst monotonic, align 4 ; CHECK-NEXT: fence syncscope("workgroup") release ; CHECK-NEXT: tail call void @llvm.amdgcn.s.barrier() ; CHECK-NEXT: fence syncscope("workgroup") acquire ; CHECK-NEXT: [[LD:%.*]] = load i32, ptr addrspace(1) [[IN:%.*]], align 4 ; CHECK-NEXT: store i32 [[LD]], ptr addrspace(1) [[OUT]], align 4 ; CHECK-NEXT: ret void ; ; GCN-LABEL: may_alias_atomic_cmpxchg: ; GCN: ; %bb.0: ; %entry ; GCN-NEXT: s_load_dword s6, s[4:5], 0x34 ; GCN-NEXT: s_load_dwordx4 s[0:3], s[4:5], 0x24 ; GCN-NEXT: v_mov_b32_e32 v2, 0 ; GCN-NEXT: v_mov_b32_e32 v1, 7 ; GCN-NEXT: s_waitcnt lgkmcnt(0) ; GCN-NEXT: v_mov_b32_e32 v0, s6 ; GCN-NEXT: global_atomic_cmpswap v2, v[0:1], s[2:3] ; GCN-NEXT: s_waitcnt vmcnt(0) ; GCN-NEXT: buffer_wbinvl1_vol ; GCN-NEXT: s_barrier ; GCN-NEXT: global_load_dword v0, v2, s[0:1] ; GCN-NEXT: s_waitcnt vmcnt(0) ; GCN-NEXT: global_store_dword v2, v0, s[2:3] ; GCN-NEXT: s_endpgm entry: %unused = cmpxchg ptr addrspace(1) %out, i32 7, i32 %swap seq_cst monotonic fence syncscope("workgroup") release tail call void @llvm.amdgcn.s.barrier() fence syncscope("workgroup") acquire %ld = load i32, ptr addrspace(1) %in, align 4 store i32 %ld, ptr addrspace(1) %out, align 4 ret void } define protected amdgpu_kernel void @may_alias_atomic_rmw(ptr addrspace(1) %in, ptr addrspace(1) %out) { ; CHECK-LABEL: @may_alias_atomic_rmw( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[UNUSED:%.*]] = atomicrmw add ptr addrspace(1) [[OUT:%.*]], i32 5 syncscope("agent") seq_cst, align 4 ; CHECK-NEXT: fence syncscope("workgroup") release ; CHECK-NEXT: tail call void @llvm.amdgcn.s.barrier() ; CHECK-NEXT: fence syncscope("workgroup") acquire ; CHECK-NEXT: [[LD:%.*]] = load i32, ptr addrspace(1) [[IN:%.*]], align 4 ; CHECK-NEXT: store i32 [[LD]], ptr addrspace(1) [[OUT]], align 4 ; CHECK-NEXT: ret void ; ; GCN-LABEL: may_alias_atomic_rmw: ; GCN: ; %bb.0: ; %entry ; GCN-NEXT: s_load_dwordx4 s[0:3], s[4:5], 0x24 ; GCN-NEXT: v_mov_b32_e32 v0, 0 ; GCN-NEXT: v_mov_b32_e32 v1, 5 ; GCN-NEXT: s_waitcnt lgkmcnt(0) ; GCN-NEXT: global_atomic_add v0, v1, s[2:3] ; GCN-NEXT: s_waitcnt vmcnt(0) ; GCN-NEXT: buffer_wbinvl1_vol ; GCN-NEXT: s_barrier ; GCN-NEXT: global_load_dword v1, v0, s[0:1] ; GCN-NEXT: s_waitcnt vmcnt(0) ; GCN-NEXT: global_store_dword v0, v1, s[2:3] ; GCN-NEXT: s_endpgm entry: %unused = atomicrmw add ptr addrspace(1) %out, i32 5 syncscope("agent") seq_cst fence syncscope("workgroup") release tail call void @llvm.amdgcn.s.barrier() fence syncscope("workgroup") acquire %ld = load i32, ptr addrspace(1) %in, align 4 store i32 %ld, ptr addrspace(1) %out, align 4 ret void } define protected amdgpu_kernel void @no_alias_atomic_rmw_then_clobber(ptr addrspace(1) %in, ptr addrspace(1) %out, ptr addrspace(1) noalias %noalias) { ; CHECK-LABEL: @no_alias_atomic_rmw_then_clobber( ; CHECK-NEXT: entry: ; CHECK-NEXT: store i32 1, ptr addrspace(1) [[OUT:%.*]], align 4 ; CHECK-NEXT: store i32 2, ptr addrspace(1) [[NOALIAS:%.*]], align 4 ; CHECK-NEXT: [[UNUSED:%.*]] = atomicrmw add ptr addrspace(3) @LDS, i32 5 seq_cst, align 4 ; CHECK-NEXT: fence syncscope("workgroup") release ; CHECK-NEXT: tail call void @llvm.amdgcn.s.barrier() ; CHECK-NEXT: fence syncscope("workgroup") acquire ; CHECK-NEXT: [[LD:%.*]] = load i32, ptr addrspace(1) [[IN:%.*]], align 4 ; CHECK-NEXT: store i32 [[LD]], ptr addrspace(1) [[OUT]], align 4 ; CHECK-NEXT: ret void ; ; GCN-LABEL: no_alias_atomic_rmw_then_clobber: ; GCN: ; %bb.0: ; %entry ; GCN-NEXT: s_load_dwordx4 s[0:3], s[4:5], 0x24 ; GCN-NEXT: s_load_dwordx2 s[6:7], s[4:5], 0x34 ; GCN-NEXT: v_mov_b32_e32 v0, 1 ; GCN-NEXT: v_mov_b32_e32 v1, 0 ; GCN-NEXT: v_mov_b32_e32 v2, 2 ; GCN-NEXT: s_waitcnt lgkmcnt(0) ; GCN-NEXT: global_store_dword v1, v0, s[2:3] ; GCN-NEXT: global_store_dword v1, v2, s[6:7] ; GCN-NEXT: v_mov_b32_e32 v0, 5 ; GCN-NEXT: ds_add_u32 v1, v0 ; GCN-NEXT: s_waitcnt vmcnt(0) lgkmcnt(0) ; GCN-NEXT: s_barrier ; GCN-NEXT: global_load_dword v0, v1, s[0:1] ; GCN-NEXT: s_waitcnt vmcnt(0) ; GCN-NEXT: global_store_dword v1, v0, s[2:3] ; GCN-NEXT: s_endpgm entry: store i32 1, ptr addrspace(1) %out, align 4 store i32 2, ptr addrspace(1) %noalias, align 4 %unused = atomicrmw add ptr addrspace(3) @LDS, i32 5 seq_cst fence syncscope("workgroup") release tail call void @llvm.amdgcn.s.barrier() fence syncscope("workgroup") acquire %ld = load i32, ptr addrspace(1) %in, align 4 store i32 %ld, ptr addrspace(1) %out, align 4 ret void } define protected amdgpu_kernel void @no_alias_atomic_rmw_then_no_alias_store(ptr addrspace(1) %in, ptr addrspace(1) %out, ptr addrspace(1) noalias %noalias) { ; CHECK-LABEL: @no_alias_atomic_rmw_then_no_alias_store( ; CHECK-NEXT: entry: ; CHECK-NEXT: store i32 2, ptr addrspace(1) [[NOALIAS:%.*]], align 4 ; CHECK-NEXT: [[UNUSED:%.*]] = atomicrmw add ptr addrspace(3) @LDS, i32 5 seq_cst, align 4 ; CHECK-NEXT: fence syncscope("workgroup") release ; CHECK-NEXT: tail call void @llvm.amdgcn.s.barrier() ; CHECK-NEXT: fence syncscope("workgroup") acquire ; CHECK-NEXT: [[LD:%.*]] = load i32, ptr addrspace(1) [[IN:%.*]], align 4, !amdgpu.noclobber [[META0]] ; CHECK-NEXT: store i32 [[LD]], ptr addrspace(1) [[OUT:%.*]], align 4 ; CHECK-NEXT: ret void ; ; GCN-LABEL: no_alias_atomic_rmw_then_no_alias_store: ; GCN: ; %bb.0: ; %entry ; GCN-NEXT: s_load_dwordx2 s[6:7], s[4:5], 0x34 ; GCN-NEXT: s_load_dwordx4 s[0:3], s[4:5], 0x24 ; GCN-NEXT: v_mov_b32_e32 v0, 2 ; GCN-NEXT: v_mov_b32_e32 v1, 0 ; GCN-NEXT: v_mov_b32_e32 v2, 5 ; GCN-NEXT: s_waitcnt lgkmcnt(0) ; GCN-NEXT: global_store_dword v1, v0, s[6:7] ; GCN-NEXT: ds_add_u32 v1, v2 ; GCN-NEXT: s_waitcnt vmcnt(0) lgkmcnt(0) ; GCN-NEXT: s_barrier ; GCN-NEXT: s_load_dword s0, s[0:1], 0x0 ; GCN-NEXT: s_waitcnt lgkmcnt(0) ; GCN-NEXT: v_mov_b32_e32 v0, s0 ; GCN-NEXT: global_store_dword v1, v0, s[2:3] ; GCN-NEXT: s_endpgm entry: store i32 2, ptr addrspace(1) %noalias, align 4 %unused = atomicrmw add ptr addrspace(3) @LDS, i32 5 seq_cst fence syncscope("workgroup") release tail call void @llvm.amdgcn.s.barrier() fence syncscope("workgroup") acquire %ld = load i32, ptr addrspace(1) %in, align 4 store i32 %ld, ptr addrspace(1) %out, align 4 ret void } declare void @llvm.amdgcn.s.barrier() declare void @llvm.amdgcn.wave.barrier()