1; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=bonaire -verify-machineinstrs < %s | FileCheck -enable-var-scope %s 2 3declare i32 @llvm.read_register.i32(metadata) #0 4declare i64 @llvm.read_register.i64(metadata) #0 5 6; CHECK-LABEL: {{^}}test_read_m0: 7; CHECK: s_mov_b32 m0, -1 8; CHECK: v_mov_b32_e32 [[COPY:v[0-9]+]], m0 9; CHECK: flat_store_dword v{{\[[0-9]+:[0-9]+\]}}, [[COPY]] 10define amdgpu_kernel void @test_read_m0(i32 addrspace(1)* %out) #0 { 11 store volatile i32 0, i32 addrspace(3)* undef 12 %m0 = call i32 @llvm.read_register.i32(metadata !0) 13 store i32 %m0, i32 addrspace(1)* %out 14 ret void 15} 16 17; CHECK-LABEL: {{^}}test_read_exec: 18; CHECK: v_mov_b32_e32 v[[LO:[0-9]+]], exec_lo 19; CHECK: v_mov_b32_e32 v[[HI:[0-9]+]], exec_hi 20; CHECK: flat_store_dwordx2 v{{\[[0-9]+:[0-9]+\]}}, v{{\[}}[[LO]]:[[HI]]{{\]}} 21define amdgpu_kernel void @test_read_exec(i64 addrspace(1)* %out) #0 { 22 %exec = call i64 @llvm.read_register.i64(metadata !1) 23 store i64 %exec, i64 addrspace(1)* %out 24 ret void 25} 26 27; CHECK-LABEL: {{^}}test_read_flat_scratch: 28; CHECK: v_mov_b32_e32 v[[LO:[0-9]+]], flat_scratch_lo 29; CHECK: v_mov_b32_e32 v[[HI:[0-9]+]], flat_scratch_hi 30; CHECK: flat_store_dwordx2 v{{\[[0-9]+:[0-9]+\]}}, v{{\[}}[[LO]]:[[HI]]{{\]}} 31define amdgpu_kernel void @test_read_flat_scratch(i64 addrspace(1)* %out) #0 { 32 %flat_scratch = call i64 @llvm.read_register.i64(metadata !2) 33 store i64 %flat_scratch, i64 addrspace(1)* %out 34 ret void 35} 36 37; CHECK-LABEL: {{^}}test_read_flat_scratch_lo: 38; CHECK: v_mov_b32_e32 [[COPY:v[0-9]+]], flat_scratch_lo 39; CHECK: flat_store_dword v{{\[[0-9]+:[0-9]+\]}}, [[COPY]] 40define amdgpu_kernel void @test_read_flat_scratch_lo(i32 addrspace(1)* %out) #0 { 41 %flat_scratch_lo = call i32 @llvm.read_register.i32(metadata !3) 42 store i32 %flat_scratch_lo, i32 addrspace(1)* %out 43 ret void 44} 45 46; CHECK-LABEL: {{^}}test_read_flat_scratch_hi: 47; CHECK: v_mov_b32_e32 [[COPY:v[0-9]+]], flat_scratch_hi 48; CHECK: flat_store_dword v{{\[[0-9]+:[0-9]+\]}}, [[COPY]] 49define amdgpu_kernel void @test_read_flat_scratch_hi(i32 addrspace(1)* %out) #0 { 50 %flat_scratch_hi = call i32 @llvm.read_register.i32(metadata !4) 51 store i32 %flat_scratch_hi, i32 addrspace(1)* %out 52 ret void 53} 54 55; CHECK-LABEL: {{^}}test_read_exec_lo: 56; CHECK: v_mov_b32_e32 [[COPY:v[0-9]+]], exec_lo 57; CHECK: flat_store_dword v{{\[[0-9]+:[0-9]+\]}}, [[COPY]] 58define amdgpu_kernel void @test_read_exec_lo(i32 addrspace(1)* %out) #0 { 59 %exec_lo = call i32 @llvm.read_register.i32(metadata !5) 60 store i32 %exec_lo, i32 addrspace(1)* %out 61 ret void 62} 63 64; CHECK-LABEL: {{^}}test_read_exec_hi: 65; CHECK: v_mov_b32_e32 [[COPY:v[0-9]+]], exec_hi 66; CHECK: flat_store_dword v{{\[[0-9]+:[0-9]+\]}}, [[COPY]] 67define amdgpu_kernel void @test_read_exec_hi(i32 addrspace(1)* %out) #0 { 68 %exec_hi = call i32 @llvm.read_register.i32(metadata !6) 69 store i32 %exec_hi, i32 addrspace(1)* %out 70 ret void 71} 72 73attributes #0 = { nounwind } 74 75!0 = !{!"m0"} 76!1 = !{!"exec"} 77!2 = !{!"flat_scratch"} 78!3 = !{!"flat_scratch_lo"} 79!4 = !{!"flat_scratch_hi"} 80!5 = !{!"exec_lo"} 81!6 = !{!"exec_hi"} 82