1 ; RUN: llc -march=r600 -mcpu=redwood < %s | FileCheck -check-prefix=EG %s -check-prefix=FUNC 2 ; RUN: llc -march=amdgcn -mcpu=verde -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s 3 ; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s 4 5 ; mul24 and mad24 are affected 6 7 ; FUNC-LABEL: {{^}}test_mul_v2i32: 8 ; EG: MULLO_INT {{\*? *}}T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}} 9 ; EG: MULLO_INT {{\*? *}}T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}} 10 11 ; SI: v_mul_lo_i32 v{{[0-9]+, v[0-9]+, v[0-9]+}} 12 ; SI: v_mul_lo_i32 v{{[0-9]+, v[0-9]+, v[0-9]+}} 13 14 define void @test_mul_v2i32(<2 x i32> addrspace(1)* %out, <2 x i32> addrspace(1)* %in) { 15 %b_ptr = getelementptr <2 x i32>, <2 x i32> addrspace(1)* %in, i32 1 16 %a = load <2 x i32>, <2 x i32> addrspace(1) * %in 17 %b = load <2 x i32>, <2 x i32> addrspace(1) * %b_ptr 18 %result = mul <2 x i32> %a, %b 19 store <2 x i32> %result, <2 x i32> addrspace(1)* %out 20 ret void 21 } 22 23 ; FUNC-LABEL: {{^}}v_mul_v4i32: 24 ; EG: MULLO_INT {{\*? *}}T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}} 25 ; EG: MULLO_INT {{\*? *}}T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}} 26 ; EG: MULLO_INT {{\*? *}}T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}} 27 ; EG: MULLO_INT {{\*? *}}T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}} 28 29 ; SI: v_mul_lo_i32 v{{[0-9]+, v[0-9]+, v[0-9]+}} 30 ; SI: v_mul_lo_i32 v{{[0-9]+, v[0-9]+, v[0-9]+}} 31 ; SI: v_mul_lo_i32 v{{[0-9]+, v[0-9]+, v[0-9]+}} 32 ; SI: v_mul_lo_i32 v{{[0-9]+, v[0-9]+, v[0-9]+}} 33 34 define void @v_mul_v4i32(<4 x i32> addrspace(1)* %out, <4 x i32> addrspace(1)* %in) { 35 %b_ptr = getelementptr <4 x i32>, <4 x i32> addrspace(1)* %in, i32 1 36 %a = load <4 x i32>, <4 x i32> addrspace(1) * %in 37 %b = load <4 x i32>, <4 x i32> addrspace(1) * %b_ptr 38 %result = mul <4 x i32> %a, %b 39 store <4 x i32> %result, <4 x i32> addrspace(1)* %out 40 ret void 41 } 42 43 ; FUNC-LABEL: {{^}}s_trunc_i64_mul_to_i32: 44 ; SI: s_load_dword 45 ; SI: s_load_dword 46 ; SI: s_mul_i32 47 ; SI: buffer_store_dword 48 define void @s_trunc_i64_mul_to_i32(i32 addrspace(1)* %out, i64 %a, i64 %b) { 49 %mul = mul i64 %b, %a 50 %trunc = trunc i64 %mul to i32 51 store i32 %trunc, i32 addrspace(1)* %out, align 8 52 ret void 53 } 54 55 ; FUNC-LABEL: {{^}}v_trunc_i64_mul_to_i32: 56 ; SI: s_load_dword 57 ; SI: s_load_dword 58 ; SI: v_mul_lo_i32 59 ; SI: buffer_store_dword 60 define void @v_trunc_i64_mul_to_i32(i32 addrspace(1)* %out, i64 addrspace(1)* %aptr, i64 addrspace(1)* %bptr) nounwind { 61 %a = load i64, i64 addrspace(1)* %aptr, align 8 62 %b = load i64, i64 addrspace(1)* %bptr, align 8 63 %mul = mul i64 %b, %a 64 %trunc = trunc i64 %mul to i32 65 store i32 %trunc, i32 addrspace(1)* %out, align 8 66 ret void 67 } 68 69 ; This 64-bit multiply should just use MUL_HI and MUL_LO, since the top 70 ; 32-bits of both arguments are sign bits. 71 ; FUNC-LABEL: {{^}}mul64_sext_c: 72 ; EG-DAG: MULLO_INT 73 ; EG-DAG: MULHI_INT 74 ; SI-DAG: s_mul_i32 75 ; SI-DAG: v_mul_hi_i32 76 define void @mul64_sext_c(i64 addrspace(1)* %out, i32 %in) { 77 entry: 78 %0 = sext i32 %in to i64 79 %1 = mul i64 %0, 80 80 store i64 %1, i64 addrspace(1)* %out 81 ret void 82 } 83 84 ; FUNC-LABEL: {{^}}v_mul64_sext_c: 85 ; EG-DAG: MULLO_INT 86 ; EG-DAG: MULHI_INT 87 ; SI-DAG: v_mul_lo_i32 88 ; SI-DAG: v_mul_hi_i32 89 ; SI: s_endpgm 90 define void @v_mul64_sext_c(i64 addrspace(1)* %out, i32 addrspace(1)* %in) { 91 %val = load i32, i32 addrspace(1)* %in, align 4 92 %ext = sext i32 %val to i64 93 %mul = mul i64 %ext, 80 94 store i64 %mul, i64 addrspace(1)* %out, align 8 95 ret void 96 } 97 98 ; FUNC-LABEL: {{^}}v_mul64_sext_inline_imm: 99 ; SI-DAG: v_mul_lo_i32 v{{[0-9]+}}, 9, v{{[0-9]+}} 100 ; SI-DAG: v_mul_hi_i32 v{{[0-9]+}}, 9, v{{[0-9]+}} 101 ; SI: s_endpgm 102 define void @v_mul64_sext_inline_imm(i64 addrspace(1)* %out, i32 addrspace(1)* %in) { 103 %val = load i32, i32 addrspace(1)* %in, align 4 104 %ext = sext i32 %val to i64 105 %mul = mul i64 %ext, 9 106 store i64 %mul, i64 addrspace(1)* %out, align 8 107 ret void 108 } 109 110 ; FUNC-LABEL: {{^}}s_mul_i32: 111 ; SI: s_load_dword [[SRC0:s[0-9]+]], 112 ; SI: s_load_dword [[SRC1:s[0-9]+]], 113 ; SI: s_mul_i32 [[SRESULT:s[0-9]+]], [[SRC0]], [[SRC1]] 114 ; SI: v_mov_b32_e32 [[VRESULT:v[0-9]+]], [[SRESULT]] 115 ; SI: buffer_store_dword [[VRESULT]], 116 ; SI: s_endpgm 117 define void @s_mul_i32(i32 addrspace(1)* %out, i32 %a, i32 %b) nounwind { 118 %mul = mul i32 %a, %b 119 store i32 %mul, i32 addrspace(1)* %out, align 4 120 ret void 121 } 122 123 ; FUNC-LABEL: {{^}}v_mul_i32: 124 ; SI: v_mul_lo_i32 v{{[0-9]+}}, v{{[0-9]+}}, v{{[0-9]+}} 125 define void @v_mul_i32(i32 addrspace(1)* %out, i32 addrspace(1)* %in) { 126 %b_ptr = getelementptr i32, i32 addrspace(1)* %in, i32 1 127 %a = load i32, i32 addrspace(1)* %in 128 %b = load i32, i32 addrspace(1)* %b_ptr 129 %result = mul i32 %a, %b 130 store i32 %result, i32 addrspace(1)* %out 131 ret void 132 } 133 134 ; A standard 64-bit multiply. The expansion should be around 6 instructions. 135 ; It would be difficult to match the expansion correctly without writing 136 ; a really complicated list of FileCheck expressions. I don't want 137 ; to confuse people who may 'break' this test with a correct optimization, 138 ; so this test just uses FUNC-LABEL to make sure the compiler does not 139 ; crash with a 'failed to select' error. 140 141 ; FUNC-LABEL: {{^}}s_mul_i64: 142 define void @s_mul_i64(i64 addrspace(1)* %out, i64 %a, i64 %b) nounwind { 143 %mul = mul i64 %a, %b 144 store i64 %mul, i64 addrspace(1)* %out, align 8 145 ret void 146 } 147 148 ; FUNC-LABEL: {{^}}v_mul_i64: 149 ; SI: v_mul_lo_i32 150 define void @v_mul_i64(i64 addrspace(1)* %out, i64 addrspace(1)* %aptr, i64 addrspace(1)* %bptr) { 151 %a = load i64, i64 addrspace(1)* %aptr, align 8 152 %b = load i64, i64 addrspace(1)* %bptr, align 8 153 %mul = mul i64 %a, %b 154 store i64 %mul, i64 addrspace(1)* %out, align 8 155 ret void 156 } 157 158 ; FUNC-LABEL: {{^}}mul32_in_branch: 159 ; SI: s_mul_i32 160 define void @mul32_in_branch(i32 addrspace(1)* %out, i32 addrspace(1)* %in, i32 %a, i32 %b, i32 %c) { 161 entry: 162 %0 = icmp eq i32 %a, 0 163 br i1 %0, label %if, label %else 164 165 if: 166 %1 = load i32, i32 addrspace(1)* %in 167 br label %endif 168 169 else: 170 %2 = mul i32 %a, %b 171 br label %endif 172 173 endif: 174 %3 = phi i32 [%1, %if], [%2, %else] 175 store i32 %3, i32 addrspace(1)* %out 176 ret void 177 } 178 179 ; FUNC-LABEL: {{^}}mul64_in_branch: 180 ; SI-DAG: s_mul_i32 181 ; SI-DAG: v_mul_hi_u32 182 ; SI: s_endpgm 183 define void @mul64_in_branch(i64 addrspace(1)* %out, i64 addrspace(1)* %in, i64 %a, i64 %b, i64 %c) { 184 entry: 185 %0 = icmp eq i64 %a, 0 186 br i1 %0, label %if, label %else 187 188 if: 189 %1 = load i64, i64 addrspace(1)* %in 190 br label %endif 191 192 else: 193 %2 = mul i64 %a, %b 194 br label %endif 195 196 endif: 197 %3 = phi i64 [%1, %if], [%2, %else] 198 store i64 %3, i64 addrspace(1)* %out 199 ret void 200 } 201
