| ; RUN: llc -march=amdgcn -mcpu=verde -enable-misched=0 -post-RA-scheduler=0 < %s | FileCheck %s |
| ; RUN: llc -regalloc=basic -march=amdgcn -mcpu=tonga -enable-misched=0 -post-RA-scheduler=0 < %s | FileCheck %s |
| ; |
| ; There is something about Tonga that causes this test to spend a lot of time |
| ; in the default register allocator. |
| |
| |
| ; When the offset of VGPR spills into scratch space gets too large, an additional SGPR |
| ; is used to calculate the scratch load/store address. Make sure that this |
| ; mechanism works even when many spills happen. |
| |
| ; Just test that it compiles successfully. |
| ; CHECK-LABEL: test |
| define amdgpu_kernel void @test(<1280 x i32> addrspace(1)* %out, <1280 x i32> addrspace(1)* %in) { |
| entry: |
| %lo = call i32 @llvm.amdgcn.mbcnt.lo(i32 -1, i32 0) |
| %tid = call i32 @llvm.amdgcn.mbcnt.hi(i32 -1, i32 %lo) |
| |
| %aptr = getelementptr <1280 x i32>, <1280 x i32> addrspace(1)* %in, i32 %tid |
| %a = load <1280 x i32>, <1280 x i32> addrspace(1)* %aptr |
| |
| ; mark most VGPR registers as used to increase register pressure |
| call void asm sideeffect "", "~{v4},~{v8},~{v12},~{v16},~{v20},~{v24},~{v28},~{v32}" () |
| call void asm sideeffect "", "~{v36},~{v40},~{v44},~{v48},~{v52},~{v56},~{v60},~{v64}" () |
| call void asm sideeffect "", "~{v68},~{v72},~{v76},~{v80},~{v84},~{v88},~{v92},~{v96}" () |
| call void asm sideeffect "", "~{v100},~{v104},~{v108},~{v112},~{v116},~{v120},~{v124},~{v128}" () |
| call void asm sideeffect "", "~{v132},~{v136},~{v140},~{v144},~{v148},~{v152},~{v156},~{v160}" () |
| call void asm sideeffect "", "~{v164},~{v168},~{v172},~{v176},~{v180},~{v184},~{v188},~{v192}" () |
| call void asm sideeffect "", "~{v196},~{v200},~{v204},~{v208},~{v212},~{v216},~{v220},~{v224}" () |
| |
| %outptr = getelementptr <1280 x i32>, <1280 x i32> addrspace(1)* %out, i32 %tid |
| store <1280 x i32> %a, <1280 x i32> addrspace(1)* %outptr |
| |
| ret void |
| } |
| |
| declare i32 @llvm.amdgcn.mbcnt.lo(i32, i32) #1 |
| declare i32 @llvm.amdgcn.mbcnt.hi(i32, i32) #1 |
| |
| attributes #1 = { nounwind readnone } |
