1 ; RUN: llc -amdgpu-scalarize-global-loads=false -march=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s 2 ; RUN: llc -amdgpu-scalarize-global-loads=false -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s 3 ; RUN: llc -amdgpu-scalarize-global-loads=false -march=r600 -mcpu=redwood < %s | FileCheck -check-prefix=R600 -check-prefix=FUNC %s 4 5 ; FUNC-LABEL: {{^}}v_fsub_f32: 6 ; SI: v_sub_f32_e32 {{v[0-9]+}}, {{v[0-9]+}}, {{v[0-9]+}} 7 define amdgpu_kernel void @v_fsub_f32(float addrspace(1)* %out, float addrspace(1)* %in) { 8 %b_ptr = getelementptr float, float addrspace(1)* %in, i32 1 9 %a = load float, float addrspace(1)* %in, align 4 10 %b = load float, float addrspace(1)* %b_ptr, align 4 11 %result = fsub float %a, %b 12 store float %result, float addrspace(1)* %out, align 4 13 ret void 14 } 15 16 ; FUNC-LABEL: {{^}}s_fsub_f32: 17 ; R600: ADD {{\** *}}T{{[0-9]+\.[XYZW]}}, KC0[2].Z, -KC0[2].W 18 19 ; SI: v_sub_f32_e32 {{v[0-9]+}}, {{s[0-9]+}}, {{v[0-9]+}} 20 define amdgpu_kernel void @s_fsub_f32(float addrspace(1)* %out, float %a, float %b) { 21 %sub = fsub float %a, %b 22 store float %sub, float addrspace(1)* %out, align 4 23 ret void 24 } 25 26 ; FUNC-LABEL: {{^}}fsub_v2f32: 27 ; R600-DAG: ADD {{\** *}}T{{[0-9]+\.[XYZW]}}, KC0[3].X, -KC0[3].Z 28 ; R600-DAG: ADD {{\** *}}T{{[0-9]+\.[XYZW]}}, KC0[2].W, -KC0[3].Y 29 30 ; SI: v_subrev_f32_e32 {{v[0-9]+}}, {{s[0-9]+}}, {{v[0-9]+}} 31 ; SI: v_subrev_f32_e32 {{v[0-9]+}}, {{s[0-9]+}}, {{v[0-9]+}} 32 define amdgpu_kernel void @fsub_v2f32(<2 x float> addrspace(1)* %out, <2 x float> %a, <2 x float> %b) { 33 %sub = fsub <2 x float> %a, %b 34 store <2 x float> %sub, <2 x float> addrspace(1)* %out, align 8 35 ret void 36 } 37 38 ; FUNC-LABEL: {{^}}v_fsub_v4f32: 39 ; R600: ADD {{\** *}}T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW], -T[0-9]+\.[XYZW]}} 40 ; R600: ADD {{\** *}}T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW], -T[0-9]+\.[XYZW]}} 41 ; R600: ADD {{\** *}}T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW], -T[0-9]+\.[XYZW]}} 42 ; R600: ADD {{\** *}}T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW], -T[0-9]+\.[XYZW]}} 43 44 ; SI: v_sub_f32_e32 {{v[0-9]+}}, {{v[0-9]+}}, {{v[0-9]+}} 45 ; SI: v_sub_f32_e32 {{v[0-9]+}}, {{v[0-9]+}}, {{v[0-9]+}} 46 ; SI: v_sub_f32_e32 {{v[0-9]+}}, {{v[0-9]+}}, {{v[0-9]+}} 47 ; SI: v_sub_f32_e32 {{v[0-9]+}}, {{v[0-9]+}}, {{v[0-9]+}} 48 define amdgpu_kernel void @v_fsub_v4f32(<4 x float> addrspace(1)* %out, <4 x float> addrspace(1)* %in) { 49 %b_ptr = getelementptr <4 x float>, <4 x float> addrspace(1)* %in, i32 1 50 %a = load <4 x float>, <4 x float> addrspace(1)* %in, align 16 51 %b = load <4 x float>, <4 x float> addrspace(1)* %b_ptr, align 16 52 %result = fsub <4 x float> %a, %b 53 store <4 x float> %result, <4 x float> addrspace(1)* %out, align 16 54 ret void 55 } 56 57 ; FUNC-LABEL: {{^}}s_fsub_v4f32: 58 ; SI: v_subrev_f32_e32 {{v[0-9]+}}, {{s[0-9]+}}, {{v[0-9]+}} 59 ; SI: v_subrev_f32_e32 {{v[0-9]+}}, {{s[0-9]+}}, {{v[0-9]+}} 60 ; SI: v_subrev_f32_e32 {{v[0-9]+}}, {{s[0-9]+}}, {{v[0-9]+}} 61 ; SI: v_subrev_f32_e32 {{v[0-9]+}}, {{s[0-9]+}}, {{v[0-9]+}} 62 ; SI: s_endpgm 63 define amdgpu_kernel void @s_fsub_v4f32(<4 x float> addrspace(1)* %out, <4 x float> %a, <4 x float> %b) { 64 %result = fsub <4 x float> %a, %b 65 store <4 x float> %result, <4 x float> addrspace(1)* %out, align 16 66 ret void 67 } 68 69 ; FUNC-LABEL: {{^}}v_fneg_fsub_f32: 70 ; SI: v_sub_f32_e32 [[SUB:v[0-9]+]], {{v[0-9]+}}, {{v[0-9]+}} 71 ; SI: v_xor_b32_e32 v{{[0-9]+}}, 0x80000000, [[SUB]] 72 define amdgpu_kernel void @v_fneg_fsub_f32(float addrspace(1)* %out, float addrspace(1)* %in) { 73 %b_ptr = getelementptr float, float addrspace(1)* %in, i32 1 74 %a = load float, float addrspace(1)* %in, align 4 75 %b = load float, float addrspace(1)* %b_ptr, align 4 76 %result = fsub float %a, %b 77 %neg.result = fsub float -0.0, %result 78 store float %neg.result, float addrspace(1)* %out, align 4 79 ret void 80 } 81 82 ; FUNC-LABEL: {{^}}v_fneg_fsub_nsz_f32: 83 ; SI: v_sub_f32_e32 [[SUB:v[0-9]+]], {{v[0-9]+}}, {{v[0-9]+}} 84 ; SI-NOT: xor 85 define amdgpu_kernel void @v_fneg_fsub_nsz_f32(float addrspace(1)* %out, float addrspace(1)* %in) { 86 %b_ptr = getelementptr float, float addrspace(1)* %in, i32 1 87 %a = load float, float addrspace(1)* %in, align 4 88 %b = load float, float addrspace(1)* %b_ptr, align 4 89 %result = fsub nsz float %a, %b 90 %neg.result = fsub float -0.0, %result 91 store float %neg.result, float addrspace(1)* %out, align 4 92 ret void 93 } 94 95 ; FUNC-LABEL: {{^}}v_fneg_fsub_nsz_attribute_f32: 96 ; SI: v_sub_f32_e32 [[SUB:v[0-9]+]], {{v[0-9]+}}, {{v[0-9]+}} 97 ; SI-NOT: xor 98 define amdgpu_kernel void @v_fneg_fsub_nsz_attribute_f32(float addrspace(1)* %out, float addrspace(1)* %in) #0 { 99 %b_ptr = getelementptr float, float addrspace(1)* %in, i32 1 100 %a = load float, float addrspace(1)* %in, align 4 101 %b = load float, float addrspace(1)* %b_ptr, align 4 102 %result = fsub float %a, %b 103 %neg.result = fsub float -0.0, %result 104 store float %neg.result, float addrspace(1)* %out, align 4 105 ret void 106 } 107 108 ; For some reason the attribute has a string "true" or "false", so 109 ; make sure it is disabled and the fneg is not folded if it is not 110 ; "true". 111 ; FUNC-LABEL: {{^}}v_fneg_fsub_nsz_false_attribute_f32: 112 ; SI: v_sub_f32_e32 [[SUB:v[0-9]+]], {{v[0-9]+}}, {{v[0-9]+}} 113 ; SI: v_xor_b32_e32 v{{[0-9]+}}, 0x80000000, [[SUB]] 114 define amdgpu_kernel void @v_fneg_fsub_nsz_false_attribute_f32(float addrspace(1)* %out, float addrspace(1)* %in) #1 { 115 %b_ptr = getelementptr float, float addrspace(1)* %in, i32 1 116 %a = load float, float addrspace(1)* %in, align 4 117 %b = load float, float addrspace(1)* %b_ptr, align 4 118 %result = fsub float %a, %b 119 %neg.result = fsub float -0.0, %result 120 store float %neg.result, float addrspace(1)* %out, align 4 121 ret void 122 } 123 124 ; FUNC-LABEL: {{^}}v_fsub_0_nsz_attribute_f32: 125 ; SI-NOT: v_sub 126 define amdgpu_kernel void @v_fsub_0_nsz_attribute_f32(float addrspace(1)* %out, float addrspace(1)* %in) #0 { 127 %a = load float, float addrspace(1)* %in, align 4 128 %result = fsub float %a, 0.0 129 store float %result, float addrspace(1)* %out, align 4 130 ret void 131 } 132 133 attributes #0 = { nounwind "no-signed-zeros-fp-math"="true" } 134 attributes #1 = { nounwind "no-signed-zeros-fp-math"="false" } 135
