| ; RUN: llc -global-isel=0 -mtriple=amdgpu12.50-amd-amdhsa < %s | FileCheck %s |
| ; RUN: llc -global-isel=1 -mtriple=amdgpu12.50-amd-amdhsa < %s | FileCheck %s |
| |
| ; src_flat_scratch_base{,_lo,_hi} are isConstant register aliases, so writes to |
| ; them are dead and get silently eliminated rather than lowered to a copy. |
| |
| declare void @llvm.write_register.i32(metadata, i32) #0 |
| declare void @llvm.write_register.i64(metadata, i64) #0 |
| |
| ; CHECK-LABEL: {{^}}test_write_src_flat_scratch_base:{{.*$}} |
| ; CHECK-NOT: src_flat_scratch_base |
| ; CHECK: s_endpgm |
| define amdgpu_kernel void @test_write_src_flat_scratch_base(i64 %val) #0 { |
| call void @llvm.write_register.i64(metadata !0, i64 %val) |
| ret void |
| } |
| |
| ; CHECK-LABEL: {{^}}test_write_src_flat_scratch_base_lo:{{.*$}} |
| ; CHECK-NOT: src_flat_scratch_base |
| ; CHECK: s_endpgm |
| define amdgpu_kernel void @test_write_src_flat_scratch_base_lo(i32 %val) #0 { |
| call void @llvm.write_register.i32(metadata !1, i32 %val) |
| ret void |
| } |
| |
| ; CHECK-LABEL: {{^}}test_write_src_flat_scratch_base_hi:{{.*$}} |
| ; CHECK-NOT: src_flat_scratch_base |
| ; CHECK: s_endpgm |
| define amdgpu_kernel void @test_write_src_flat_scratch_base_hi(i32 %val) #0 { |
| call void @llvm.write_register.i32(metadata !2, i32 %val) |
| ret void |
| } |
| |
| attributes #0 = { nounwind } |
| |
| !0 = !{!"src_flat_scratch_base"} |
| !1 = !{!"src_flat_scratch_base_lo"} |
| !2 = !{!"src_flat_scratch_base_hi"} |
