1; RUN: llc -march=r600 -mcpu=SI < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s 2; RUN: llc -march=r600 -mcpu=redwood < %s | FileCheck -check-prefix=EG -check-prefix=FUNC %s 3 4; The code generated by sdiv is long and complex and may frequently change. 5; The goal of this test is to make sure the ISel doesn't fail. 6; 7; This program was previously failing to compile when one of the selectcc 8; opcodes generated by the sdiv lowering was being legalized and optimized to: 9; selectcc Remainder -1, 0, -1, SETGT 10; This was fixed by adding an additional pattern in R600Instructions.td to 11; match this pattern with a CNDGE_INT. 12 13; FUNC-LABEL: @sdiv_i32 14; EG: CF_END 15define void @sdiv_i32(i32 addrspace(1)* %out, i32 addrspace(1)* %in) { 16 %den_ptr = getelementptr i32 addrspace(1)* %in, i32 1 17 %num = load i32 addrspace(1) * %in 18 %den = load i32 addrspace(1) * %den_ptr 19 %result = sdiv i32 %num, %den 20 store i32 %result, i32 addrspace(1)* %out 21 ret void 22} 23 24; FUNC-LABEL: @sdiv_i32_4 25define void @sdiv_i32_4(i32 addrspace(1)* %out, i32 addrspace(1)* %in) { 26 %num = load i32 addrspace(1) * %in 27 %result = sdiv i32 %num, 4 28 store i32 %result, i32 addrspace(1)* %out 29 ret void 30} 31 32; Multiply by a weird constant to make sure setIntDivIsCheap is 33; working. 34 35; FUNC-LABEL: @slow_sdiv_i32_3435 36; SI: BUFFER_LOAD_DWORD [[VAL:v[0-9]+]], 37; SI: V_MOV_B32_e32 [[MAGIC:v[0-9]+]], 0x98a1930b 38; SI: V_MUL_HI_I32 [[TMP:v[0-9]+]], [[VAL]], [[MAGIC]] 39; SI: V_ADD_I32 40; SI: V_LSHRREV_B32 41; SI: V_ASHRREV_I32 42; SI: V_ADD_I32 43; SI: BUFFER_STORE_DWORD 44; SI: S_ENDPGM 45define void @slow_sdiv_i32_3435(i32 addrspace(1)* %out, i32 addrspace(1)* %in) { 46 %num = load i32 addrspace(1) * %in 47 %result = sdiv i32 %num, 3435 48 store i32 %result, i32 addrspace(1)* %out 49 ret void 50} 51 52define void @sdiv_v2i32(<2 x i32> addrspace(1)* %out, <2 x i32> addrspace(1)* %in) { 53 %den_ptr = getelementptr <2 x i32> addrspace(1)* %in, i32 1 54 %num = load <2 x i32> addrspace(1) * %in 55 %den = load <2 x i32> addrspace(1) * %den_ptr 56 %result = sdiv <2 x i32> %num, %den 57 store <2 x i32> %result, <2 x i32> addrspace(1)* %out 58 ret void 59} 60 61define void @sdiv_v2i32_4(<2 x i32> addrspace(1)* %out, <2 x i32> addrspace(1)* %in) { 62 %num = load <2 x i32> addrspace(1) * %in 63 %result = sdiv <2 x i32> %num, <i32 4, i32 4> 64 store <2 x i32> %result, <2 x i32> addrspace(1)* %out 65 ret void 66} 67 68define void @sdiv_v4i32(<4 x i32> addrspace(1)* %out, <4 x i32> addrspace(1)* %in) { 69 %den_ptr = getelementptr <4 x i32> addrspace(1)* %in, i32 1 70 %num = load <4 x i32> addrspace(1) * %in 71 %den = load <4 x i32> addrspace(1) * %den_ptr 72 %result = sdiv <4 x i32> %num, %den 73 store <4 x i32> %result, <4 x i32> addrspace(1)* %out 74 ret void 75} 76 77define void @sdiv_v4i32_4(<4 x i32> addrspace(1)* %out, <4 x i32> addrspace(1)* %in) { 78 %num = load <4 x i32> addrspace(1) * %in 79 %result = sdiv <4 x i32> %num, <i32 4, i32 4, i32 4, i32 4> 80 store <4 x i32> %result, <4 x i32> addrspace(1)* %out 81 ret void 82} 83 84; Tests for 64-bit divide bypass. 85; define void @test_get_quotient(i64 addrspace(1)* %out, i64 %a, i64 %b) nounwind { 86; %result = sdiv i64 %a, %b 87; store i64 %result, i64 addrspace(1)* %out, align 8 88; ret void 89; } 90 91; define void @test_get_remainder(i64 addrspace(1)* %out, i64 %a, i64 %b) nounwind { 92; %result = srem i64 %a, %b 93; store i64 %result, i64 addrspace(1)* %out, align 8 94; ret void 95; } 96 97; define void @test_get_quotient_and_remainder(i64 addrspace(1)* %out, i64 %a, i64 %b) nounwind { 98; %resultdiv = sdiv i64 %a, %b 99; %resultrem = srem i64 %a, %b 100; %result = add i64 %resultdiv, %resultrem 101; store i64 %result, i64 addrspace(1)* %out, align 8 102; ret void 103; } 104