| ; RUN: llc -march=amdgcn -mcpu=SI < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s |
| ; RUN: llc -march=amdgcn -mcpu=tonga < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s |
| ; RUN: llc -march=r600 -mcpu=redwood < %s | FileCheck -check-prefix=EG -check-prefix=FUNC %s |
| |
| ; The code generated by sdiv is long and complex and may frequently change. |
| ; The goal of this test is to make sure the ISel doesn't fail. |
| ; |
| ; This program was previously failing to compile when one of the selectcc |
| ; opcodes generated by the sdiv lowering was being legalized and optimized to: |
| ; selectcc Remainder -1, 0, -1, SETGT |
| ; This was fixed by adding an additional pattern in R600Instructions.td to |
| ; match this pattern with a CNDGE_INT. |
| |
| ; FUNC-LABEL: {{^}}sdiv_i32: |
| ; EG: CF_END |
| define void @sdiv_i32(i32 addrspace(1)* %out, i32 addrspace(1)* %in) { |
| %den_ptr = getelementptr i32, i32 addrspace(1)* %in, i32 1 |
| %num = load i32, i32 addrspace(1) * %in |
| %den = load i32, i32 addrspace(1) * %den_ptr |
| %result = sdiv i32 %num, %den |
| store i32 %result, i32 addrspace(1)* %out |
| ret void |
| } |
| |
| ; FUNC-LABEL: {{^}}sdiv_i32_4: |
| define void @sdiv_i32_4(i32 addrspace(1)* %out, i32 addrspace(1)* %in) { |
| %num = load i32, i32 addrspace(1) * %in |
| %result = sdiv i32 %num, 4 |
| store i32 %result, i32 addrspace(1)* %out |
| ret void |
| } |
| |
| ; Multiply by a weird constant to make sure setIntDivIsCheap is |
| ; working. |
| |
| ; FUNC-LABEL: {{^}}slow_sdiv_i32_3435: |
| ; SI: buffer_load_dword [[VAL:v[0-9]+]], |
| ; SI: v_mov_b32_e32 [[MAGIC:v[0-9]+]], 0x98a1930b |
| ; SI: v_mul_hi_i32 [[TMP:v[0-9]+]], [[MAGIC]], [[VAL]] |
| ; SI: v_add_i32 |
| ; SI: v_lshrrev_b32 |
| ; SI: v_ashrrev_i32 |
| ; SI: v_add_i32 |
| ; SI: buffer_store_dword |
| ; SI: s_endpgm |
| define void @slow_sdiv_i32_3435(i32 addrspace(1)* %out, i32 addrspace(1)* %in) { |
| %num = load i32, i32 addrspace(1) * %in |
| %result = sdiv i32 %num, 3435 |
| store i32 %result, i32 addrspace(1)* %out |
| ret void |
| } |
| |
| define void @sdiv_v2i32(<2 x i32> addrspace(1)* %out, <2 x i32> addrspace(1)* %in) { |
| %den_ptr = getelementptr <2 x i32>, <2 x i32> addrspace(1)* %in, i32 1 |
| %num = load <2 x i32>, <2 x i32> addrspace(1) * %in |
| %den = load <2 x i32>, <2 x i32> addrspace(1) * %den_ptr |
| %result = sdiv <2 x i32> %num, %den |
| store <2 x i32> %result, <2 x i32> addrspace(1)* %out |
| ret void |
| } |
| |
| define void @sdiv_v2i32_4(<2 x i32> addrspace(1)* %out, <2 x i32> addrspace(1)* %in) { |
| %num = load <2 x i32>, <2 x i32> addrspace(1) * %in |
| %result = sdiv <2 x i32> %num, <i32 4, i32 4> |
| store <2 x i32> %result, <2 x i32> addrspace(1)* %out |
| ret void |
| } |
| |
| define void @sdiv_v4i32(<4 x i32> addrspace(1)* %out, <4 x i32> addrspace(1)* %in) { |
| %den_ptr = getelementptr <4 x i32>, <4 x i32> addrspace(1)* %in, i32 1 |
| %num = load <4 x i32>, <4 x i32> addrspace(1) * %in |
| %den = load <4 x i32>, <4 x i32> addrspace(1) * %den_ptr |
| %result = sdiv <4 x i32> %num, %den |
| store <4 x i32> %result, <4 x i32> addrspace(1)* %out |
| ret void |
| } |
| |
| define void @sdiv_v4i32_4(<4 x i32> addrspace(1)* %out, <4 x i32> addrspace(1)* %in) { |
| %num = load <4 x i32>, <4 x i32> addrspace(1) * %in |
| %result = sdiv <4 x i32> %num, <i32 4, i32 4, i32 4, i32 4> |
| store <4 x i32> %result, <4 x i32> addrspace(1)* %out |
| ret void |
| } |
| |
| ; Tests for 64-bit divide bypass. |
| ; define void @test_get_quotient(i64 addrspace(1)* %out, i64 %a, i64 %b) nounwind { |
| ; %result = sdiv i64 %a, %b |
| ; store i64 %result, i64 addrspace(1)* %out, align 8 |
| ; ret void |
| ; } |
| |
| ; define void @test_get_remainder(i64 addrspace(1)* %out, i64 %a, i64 %b) nounwind { |
| ; %result = srem i64 %a, %b |
| ; store i64 %result, i64 addrspace(1)* %out, align 8 |
| ; ret void |
| ; } |
| |
| ; define void @test_get_quotient_and_remainder(i64 addrspace(1)* %out, i64 %a, i64 %b) nounwind { |
| ; %resultdiv = sdiv i64 %a, %b |
| ; %resultrem = srem i64 %a, %b |
| ; %result = add i64 %resultdiv, %resultrem |
| ; store i64 %result, i64 addrspace(1)* %out, align 8 |
| ; ret void |
| ; } |