| /* |
| * Copyright © 2020 Valve Corporation |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the next |
| * paragraph) shall be included in all copies or substantial portions of the |
| * Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
| * IN THE SOFTWARE. |
| * |
| */ |
| |
| #include "aco_ir.h" |
| |
| #include "aco_builder.h" |
| |
| #include "util/u_debug.h" |
| |
| #include "c11/threads.h" |
| |
| namespace aco { |
| |
| thread_local aco::monotonic_buffer_resource* instruction_buffer = nullptr; |
| |
| uint64_t debug_flags = 0; |
| |
| static const struct debug_control aco_debug_options[] = {{"validateir", DEBUG_VALIDATE_IR}, |
| {"validatera", DEBUG_VALIDATE_RA}, |
| {"novalidateir", DEBUG_NO_VALIDATE_IR}, |
| {"perfwarn", DEBUG_PERFWARN}, |
| {"force-waitcnt", DEBUG_FORCE_WAITCNT}, |
| {"force-waitdeps", DEBUG_FORCE_WAITDEPS}, |
| {"novn", DEBUG_NO_VN}, |
| {"noopt", DEBUG_NO_OPT}, |
| {"nosched", DEBUG_NO_SCHED}, |
| {"perfinfo", DEBUG_PERF_INFO}, |
| {"liveinfo", DEBUG_LIVE_INFO}, |
| {NULL, 0}}; |
| |
| static once_flag init_once_flag = ONCE_FLAG_INIT; |
| |
| static void |
| init_once() |
| { |
| debug_flags = parse_debug_string(getenv("ACO_DEBUG"), aco_debug_options); |
| |
| #ifndef NDEBUG |
| /* enable some flags by default on debug builds */ |
| debug_flags |= aco::DEBUG_VALIDATE_IR; |
| #endif |
| |
| if (debug_flags & aco::DEBUG_NO_VALIDATE_IR) |
| debug_flags &= ~aco::DEBUG_VALIDATE_IR; |
| } |
| |
| void |
| init() |
| { |
| call_once(&init_once_flag, init_once); |
| } |
| |
| void |
| init_program(Program* program, Stage stage, const struct aco_shader_info* info, |
| enum amd_gfx_level gfx_level, enum radeon_family family, bool wgp_mode, |
| ac_shader_config* config) |
| { |
| instruction_buffer = &program->m; |
| program->stage = stage; |
| program->config = config; |
| program->info = *info; |
| program->gfx_level = gfx_level; |
| if (family == CHIP_UNKNOWN) { |
| switch (gfx_level) { |
| case GFX6: program->family = CHIP_TAHITI; break; |
| case GFX7: program->family = CHIP_BONAIRE; break; |
| case GFX8: program->family = CHIP_POLARIS10; break; |
| case GFX9: program->family = CHIP_VEGA10; break; |
| case GFX10: program->family = CHIP_NAVI10; break; |
| case GFX10_3: program->family = CHIP_NAVI21; break; |
| case GFX11: program->family = CHIP_GFX1100; break; |
| default: program->family = CHIP_UNKNOWN; break; |
| } |
| } else { |
| program->family = family; |
| } |
| program->wave_size = info->wave_size; |
| program->lane_mask = program->wave_size == 32 ? s1 : s2; |
| |
| program->dev.lds_encoding_granule = gfx_level >= GFX11 && stage == fragment_fs ? 1024 : |
| gfx_level >= GFX7 ? 512 : 256; |
| program->dev.lds_alloc_granule = gfx_level >= GFX10_3 ? 1024 : program->dev.lds_encoding_granule; |
| program->dev.lds_limit = gfx_level >= GFX7 ? 65536 : 32768; |
| /* apparently gfx702 also has 16-bank LDS but I can't find a family for that */ |
| program->dev.has_16bank_lds = family == CHIP_KABINI || family == CHIP_STONEY; |
| |
| program->dev.vgpr_limit = gfx_level >= GFX11 ? 128 : 256; //TODO: fix encoding for 16-bit v128+ |
| program->dev.physical_vgprs = 256; |
| program->dev.vgpr_alloc_granule = 4; |
| |
| if (gfx_level >= GFX10) { |
| program->dev.physical_sgprs = 5120; /* doesn't matter as long as it's at least 128 * 40 */ |
| program->dev.sgpr_alloc_granule = 128; |
| program->dev.sgpr_limit = |
| 108; /* includes VCC, which can be treated as s[106-107] on GFX10+ */ |
| |
| if (family == CHIP_GFX1100 || family == CHIP_GFX1101) { |
| program->dev.physical_vgprs = program->wave_size == 32 ? 1536 : 768; |
| program->dev.vgpr_alloc_granule = program->wave_size == 32 ? 24 : 12; |
| } else { |
| program->dev.physical_vgprs = program->wave_size == 32 ? 1024 : 512; |
| if (gfx_level >= GFX10_3) |
| program->dev.vgpr_alloc_granule = program->wave_size == 32 ? 16 : 8; |
| else |
| program->dev.vgpr_alloc_granule = program->wave_size == 32 ? 8 : 4; |
| } |
| } else if (program->gfx_level >= GFX8) { |
| program->dev.physical_sgprs = 800; |
| program->dev.sgpr_alloc_granule = 16; |
| program->dev.sgpr_limit = 102; |
| if (family == CHIP_TONGA || family == CHIP_ICELAND) |
| program->dev.sgpr_alloc_granule = 96; /* workaround hardware bug */ |
| } else { |
| program->dev.physical_sgprs = 512; |
| program->dev.sgpr_alloc_granule = 8; |
| program->dev.sgpr_limit = 104; |
| } |
| |
| program->dev.max_wave64_per_simd = 10; |
| if (program->gfx_level >= GFX10_3) |
| program->dev.max_wave64_per_simd = 16; |
| else if (program->gfx_level == GFX10) |
| program->dev.max_wave64_per_simd = 20; |
| else if (program->family >= CHIP_POLARIS10 && program->family <= CHIP_VEGAM) |
| program->dev.max_wave64_per_simd = 8; |
| |
| program->dev.simd_per_cu = program->gfx_level >= GFX10 ? 2 : 4; |
| |
| switch (program->family) { |
| /* GFX8 APUs */ |
| case CHIP_CARRIZO: |
| case CHIP_STONEY: |
| /* GFX9 APUS */ |
| case CHIP_RAVEN: |
| case CHIP_RAVEN2: |
| case CHIP_RENOIR: program->dev.xnack_enabled = true; break; |
| default: break; |
| } |
| |
| program->dev.sram_ecc_enabled = program->family == CHIP_ARCTURUS; |
| /* apparently gfx702 also has fast v_fma_f32 but I can't find a family for that */ |
| program->dev.has_fast_fma32 = program->gfx_level >= GFX9; |
| if (program->family == CHIP_TAHITI || program->family == CHIP_CARRIZO || |
| program->family == CHIP_HAWAII) |
| program->dev.has_fast_fma32 = true; |
| program->dev.has_mac_legacy32 = program->gfx_level <= GFX7 || program->gfx_level >= GFX10; |
| |
| program->dev.fused_mad_mix = program->gfx_level >= GFX10; |
| if (program->family == CHIP_VEGA12 || program->family == CHIP_VEGA20 || |
| program->family == CHIP_ARCTURUS || program->family == CHIP_ALDEBARAN) |
| program->dev.fused_mad_mix = true; |
| |
| if (program->gfx_level >= GFX11) { |
| program->dev.scratch_global_offset_min = -4096; |
| program->dev.scratch_global_offset_max = 4095; |
| } else if (program->gfx_level >= GFX10 || program->gfx_level == GFX8) { |
| program->dev.scratch_global_offset_min = -2048; |
| program->dev.scratch_global_offset_max = 2047; |
| } else if (program->gfx_level == GFX9) { |
| /* The minimum is actually -4096, but negative offsets are broken when SADDR is used. */ |
| program->dev.scratch_global_offset_min = 0; |
| program->dev.scratch_global_offset_max = 4095; |
| } |
| |
| program->wgp_mode = wgp_mode; |
| |
| program->progress = CompilationProgress::after_isel; |
| |
| program->next_fp_mode.preserve_signed_zero_inf_nan32 = false; |
| program->next_fp_mode.preserve_signed_zero_inf_nan16_64 = false; |
| program->next_fp_mode.must_flush_denorms32 = false; |
| program->next_fp_mode.must_flush_denorms16_64 = false; |
| program->next_fp_mode.care_about_round32 = false; |
| program->next_fp_mode.care_about_round16_64 = false; |
| program->next_fp_mode.denorm16_64 = fp_denorm_keep; |
| program->next_fp_mode.denorm32 = 0; |
| program->next_fp_mode.round16_64 = fp_round_ne; |
| program->next_fp_mode.round32 = fp_round_ne; |
| } |
| |
| memory_sync_info |
| get_sync_info(const Instruction* instr) |
| { |
| switch (instr->format) { |
| case Format::SMEM: return instr->smem().sync; |
| case Format::MUBUF: return instr->mubuf().sync; |
| case Format::MIMG: return instr->mimg().sync; |
| case Format::MTBUF: return instr->mtbuf().sync; |
| case Format::FLAT: |
| case Format::GLOBAL: |
| case Format::SCRATCH: return instr->flatlike().sync; |
| case Format::DS: return instr->ds().sync; |
| case Format::LDSDIR: return instr->ldsdir().sync; |
| default: return memory_sync_info(); |
| } |
| } |
| |
| bool |
| can_use_SDWA(amd_gfx_level gfx_level, const aco_ptr<Instruction>& instr, bool pre_ra) |
| { |
| if (!instr->isVALU()) |
| return false; |
| |
| if (gfx_level < GFX8 || gfx_level >= GFX11 || instr->isDPP() || instr->isVOP3P()) |
| return false; |
| |
| if (instr->isSDWA()) |
| return true; |
| |
| if (instr->isVOP3()) { |
| VOP3_instruction& vop3 = instr->vop3(); |
| if (instr->format == Format::VOP3) |
| return false; |
| if (vop3.clamp && instr->isVOPC() && gfx_level != GFX8) |
| return false; |
| if (vop3.omod && gfx_level < GFX9) |
| return false; |
| |
| // TODO: return true if we know we will use vcc |
| if (!pre_ra && instr->definitions.size() >= 2) |
| return false; |
| |
| for (unsigned i = 1; i < instr->operands.size(); i++) { |
| if (instr->operands[i].isLiteral()) |
| return false; |
| if (gfx_level < GFX9 && !instr->operands[i].isOfType(RegType::vgpr)) |
| return false; |
| } |
| } |
| |
| if (!instr->definitions.empty() && instr->definitions[0].bytes() > 4 && !instr->isVOPC()) |
| return false; |
| |
| if (!instr->operands.empty()) { |
| if (instr->operands[0].isLiteral()) |
| return false; |
| if (gfx_level < GFX9 && !instr->operands[0].isOfType(RegType::vgpr)) |
| return false; |
| if (instr->operands[0].bytes() > 4) |
| return false; |
| if (instr->operands.size() > 1 && instr->operands[1].bytes() > 4) |
| return false; |
| } |
| |
| bool is_mac = instr->opcode == aco_opcode::v_mac_f32 || instr->opcode == aco_opcode::v_mac_f16 || |
| instr->opcode == aco_opcode::v_fmac_f32 || instr->opcode == aco_opcode::v_fmac_f16; |
| |
| if (gfx_level != GFX8 && is_mac) |
| return false; |
| |
| // TODO: return true if we know we will use vcc |
| if (!pre_ra && instr->isVOPC() && gfx_level == GFX8) |
| return false; |
| if (!pre_ra && instr->operands.size() >= 3 && !is_mac) |
| return false; |
| |
| return instr->opcode != aco_opcode::v_madmk_f32 && instr->opcode != aco_opcode::v_madak_f32 && |
| instr->opcode != aco_opcode::v_madmk_f16 && instr->opcode != aco_opcode::v_madak_f16 && |
| instr->opcode != aco_opcode::v_fmamk_f32 && instr->opcode != aco_opcode::v_fmaak_f32 && |
| instr->opcode != aco_opcode::v_fmamk_f16 && instr->opcode != aco_opcode::v_fmaak_f16 && |
| instr->opcode != aco_opcode::v_readfirstlane_b32 && |
| instr->opcode != aco_opcode::v_clrexcp && instr->opcode != aco_opcode::v_swap_b32; |
| } |
| |
| /* updates "instr" and returns the old instruction (or NULL if no update was needed) */ |
| aco_ptr<Instruction> |
| convert_to_SDWA(amd_gfx_level gfx_level, aco_ptr<Instruction>& instr) |
| { |
| if (instr->isSDWA()) |
| return NULL; |
| |
| aco_ptr<Instruction> tmp = std::move(instr); |
| Format format = |
| (Format)(((uint16_t)tmp->format & ~(uint16_t)Format::VOP3) | (uint16_t)Format::SDWA); |
| instr.reset(create_instruction<SDWA_instruction>(tmp->opcode, format, tmp->operands.size(), |
| tmp->definitions.size())); |
| std::copy(tmp->operands.cbegin(), tmp->operands.cend(), instr->operands.begin()); |
| std::copy(tmp->definitions.cbegin(), tmp->definitions.cend(), instr->definitions.begin()); |
| |
| SDWA_instruction& sdwa = instr->sdwa(); |
| |
| if (tmp->isVOP3()) { |
| VOP3_instruction& vop3 = tmp->vop3(); |
| memcpy(sdwa.neg, vop3.neg, sizeof(sdwa.neg)); |
| memcpy(sdwa.abs, vop3.abs, sizeof(sdwa.abs)); |
| sdwa.omod = vop3.omod; |
| sdwa.clamp = vop3.clamp; |
| } |
| |
| for (unsigned i = 0; i < instr->operands.size(); i++) { |
| /* SDWA only uses operands 0 and 1. */ |
| if (i >= 2) |
| break; |
| |
| sdwa.sel[i] = SubdwordSel(instr->operands[i].bytes(), 0, false); |
| } |
| |
| sdwa.dst_sel = SubdwordSel(instr->definitions[0].bytes(), 0, false); |
| |
| if (instr->definitions[0].getTemp().type() == RegType::sgpr && gfx_level == GFX8) |
| instr->definitions[0].setFixed(vcc); |
| if (instr->definitions.size() >= 2) |
| instr->definitions[1].setFixed(vcc); |
| if (instr->operands.size() >= 3) |
| instr->operands[2].setFixed(vcc); |
| |
| instr->pass_flags = tmp->pass_flags; |
| |
| return tmp; |
| } |
| |
| bool |
| can_use_DPP(const aco_ptr<Instruction>& instr, bool pre_ra, bool dpp8) |
| { |
| assert(instr->isVALU() && !instr->operands.empty()); |
| |
| if (instr->isDPP()) |
| return instr->isDPP8() == dpp8; |
| |
| if (instr->operands.size() && instr->operands[0].isLiteral()) |
| return false; |
| |
| if (instr->isSDWA()) |
| return false; |
| |
| if (!pre_ra && (instr->isVOPC() || instr->definitions.size() > 1) && |
| instr->definitions.back().physReg() != vcc) |
| return false; |
| |
| if (!pre_ra && instr->operands.size() >= 3 && instr->operands[2].physReg() != vcc) |
| return false; |
| |
| if (instr->isVOP3()) { |
| const VOP3_instruction* vop3 = &instr->vop3(); |
| if (vop3->clamp || vop3->omod || vop3->opsel) |
| return false; |
| if (dpp8) |
| return false; |
| if (instr->format == Format::VOP3) |
| return false; |
| if (instr->operands.size() > 1 && !instr->operands[1].isOfType(RegType::vgpr)) |
| return false; |
| } |
| |
| /* there are more cases but those all take 64-bit inputs */ |
| return instr->opcode != aco_opcode::v_madmk_f32 && instr->opcode != aco_opcode::v_madak_f32 && |
| instr->opcode != aco_opcode::v_madmk_f16 && instr->opcode != aco_opcode::v_madak_f16 && |
| instr->opcode != aco_opcode::v_readfirstlane_b32 && |
| instr->opcode != aco_opcode::v_cvt_f64_i32 && |
| instr->opcode != aco_opcode::v_cvt_f64_f32 && instr->opcode != aco_opcode::v_cvt_f64_u32; |
| } |
| |
| aco_ptr<Instruction> |
| convert_to_DPP(aco_ptr<Instruction>& instr, bool dpp8) |
| { |
| if (instr->isDPP()) |
| return NULL; |
| |
| aco_ptr<Instruction> tmp = std::move(instr); |
| Format format = (Format)(((uint32_t)tmp->format & ~(uint32_t)Format::VOP3) | |
| (dpp8 ? (uint32_t)Format::DPP8 : (uint32_t)Format::DPP16)); |
| if (dpp8) |
| instr.reset(create_instruction<DPP8_instruction>(tmp->opcode, format, tmp->operands.size(), |
| tmp->definitions.size())); |
| else |
| instr.reset(create_instruction<DPP16_instruction>(tmp->opcode, format, tmp->operands.size(), |
| tmp->definitions.size())); |
| std::copy(tmp->operands.cbegin(), tmp->operands.cend(), instr->operands.begin()); |
| for (unsigned i = 0; i < instr->definitions.size(); i++) |
| instr->definitions[i] = tmp->definitions[i]; |
| |
| if (dpp8) { |
| DPP8_instruction* dpp = &instr->dpp8(); |
| for (unsigned i = 0; i < 8; i++) |
| dpp->lane_sel[i] = i; |
| } else { |
| DPP16_instruction* dpp = &instr->dpp16(); |
| dpp->dpp_ctrl = dpp_quad_perm(0, 1, 2, 3); |
| dpp->row_mask = 0xf; |
| dpp->bank_mask = 0xf; |
| |
| if (tmp->isVOP3()) { |
| const VOP3_instruction* vop3 = &tmp->vop3(); |
| memcpy(dpp->neg, vop3->neg, sizeof(dpp->neg)); |
| memcpy(dpp->abs, vop3->abs, sizeof(dpp->abs)); |
| } |
| } |
| |
| if (instr->isVOPC() || instr->definitions.size() > 1) |
| instr->definitions.back().setFixed(vcc); |
| |
| if (instr->operands.size() >= 3) |
| instr->operands[2].setFixed(vcc); |
| |
| instr->pass_flags = tmp->pass_flags; |
| |
| return tmp; |
| } |
| |
| bool |
| can_use_opsel(amd_gfx_level gfx_level, aco_opcode op, int idx) |
| { |
| /* opsel is only GFX9+ */ |
| if (gfx_level < GFX9) |
| return false; |
| |
| switch (op) { |
| case aco_opcode::v_div_fixup_f16: |
| case aco_opcode::v_fma_f16: |
| case aco_opcode::v_mad_f16: |
| case aco_opcode::v_mad_u16: |
| case aco_opcode::v_mad_i16: |
| case aco_opcode::v_med3_f16: |
| case aco_opcode::v_med3_i16: |
| case aco_opcode::v_med3_u16: |
| case aco_opcode::v_min3_f16: |
| case aco_opcode::v_min3_i16: |
| case aco_opcode::v_min3_u16: |
| case aco_opcode::v_max3_f16: |
| case aco_opcode::v_max3_i16: |
| case aco_opcode::v_max3_u16: |
| case aco_opcode::v_max_u16_e64: |
| case aco_opcode::v_max_i16_e64: |
| case aco_opcode::v_min_u16_e64: |
| case aco_opcode::v_min_i16_e64: |
| case aco_opcode::v_add_i16: |
| case aco_opcode::v_sub_i16: |
| case aco_opcode::v_add_u16_e64: |
| case aco_opcode::v_sub_u16_e64: |
| case aco_opcode::v_lshlrev_b16_e64: |
| case aco_opcode::v_lshrrev_b16_e64: |
| case aco_opcode::v_ashrrev_i16_e64: |
| case aco_opcode::v_mul_lo_u16_e64: return true; |
| case aco_opcode::v_pack_b32_f16: |
| case aco_opcode::v_cvt_pknorm_i16_f16: |
| case aco_opcode::v_cvt_pknorm_u16_f16: return idx != -1; |
| case aco_opcode::v_mad_u32_u16: |
| case aco_opcode::v_mad_i32_i16: return idx >= 0 && idx < 2; |
| case aco_opcode::v_dot2_f16_f16: |
| case aco_opcode::v_dot2_bf16_bf16: return idx == -1 || idx == 2; |
| // TODO: This matches what LLVM allows. We should see if this matches what the hardware allows. |
| case aco_opcode::v_interp_p10_f16_f32_inreg: |
| case aco_opcode::v_interp_p10_rtz_f16_f32_inreg: return idx == 0 || idx == 2; |
| case aco_opcode::v_interp_p2_f16_f32_inreg: |
| case aco_opcode::v_interp_p2_rtz_f16_f32_inreg: return idx == -1 || idx == 0; |
| default: return false; |
| } |
| } |
| |
| bool |
| instr_is_16bit(amd_gfx_level gfx_level, aco_opcode op) |
| { |
| // TODO: VINTERP (v_interp_p2_f16_f32, v_interp_p2_rtz_f16_f32) |
| |
| /* partial register writes are GFX9+, only */ |
| if (gfx_level < GFX9) |
| return false; |
| |
| switch (op) { |
| /* VOP3 */ |
| case aco_opcode::v_mad_f16: |
| case aco_opcode::v_mad_u16: |
| case aco_opcode::v_mad_i16: |
| case aco_opcode::v_fma_f16: |
| case aco_opcode::v_div_fixup_f16: |
| case aco_opcode::v_interp_p2_f16: |
| case aco_opcode::v_fma_mixlo_f16: |
| case aco_opcode::v_fma_mixhi_f16: |
| /* VOP2 */ |
| case aco_opcode::v_mac_f16: |
| case aco_opcode::v_madak_f16: |
| case aco_opcode::v_madmk_f16: return gfx_level >= GFX9; |
| case aco_opcode::v_add_f16: |
| case aco_opcode::v_sub_f16: |
| case aco_opcode::v_subrev_f16: |
| case aco_opcode::v_mul_f16: |
| case aco_opcode::v_max_f16: |
| case aco_opcode::v_min_f16: |
| case aco_opcode::v_ldexp_f16: |
| case aco_opcode::v_fmac_f16: |
| case aco_opcode::v_fmamk_f16: |
| case aco_opcode::v_fmaak_f16: |
| /* VOP1 */ |
| case aco_opcode::v_cvt_f16_f32: |
| case aco_opcode::v_cvt_f16_u16: |
| case aco_opcode::v_cvt_f16_i16: |
| case aco_opcode::v_rcp_f16: |
| case aco_opcode::v_sqrt_f16: |
| case aco_opcode::v_rsq_f16: |
| case aco_opcode::v_log_f16: |
| case aco_opcode::v_exp_f16: |
| case aco_opcode::v_frexp_mant_f16: |
| case aco_opcode::v_frexp_exp_i16_f16: |
| case aco_opcode::v_floor_f16: |
| case aco_opcode::v_ceil_f16: |
| case aco_opcode::v_trunc_f16: |
| case aco_opcode::v_rndne_f16: |
| case aco_opcode::v_fract_f16: |
| case aco_opcode::v_sin_f16: |
| case aco_opcode::v_cos_f16: return gfx_level >= GFX10; |
| // TODO: confirm whether these write 16 or 32 bit on GFX10+ |
| // case aco_opcode::v_cvt_u16_f16: |
| // case aco_opcode::v_cvt_i16_f16: |
| // case aco_opcode::p_cvt_f16_f32_rtne: |
| // case aco_opcode::v_cvt_norm_i16_f16: |
| // case aco_opcode::v_cvt_norm_u16_f16: |
| /* on GFX10, all opsel instructions preserve the high bits */ |
| default: return gfx_level >= GFX10 && can_use_opsel(gfx_level, op, -1); |
| } |
| } |
| |
| uint32_t |
| get_reduction_identity(ReduceOp op, unsigned idx) |
| { |
| switch (op) { |
| case iadd8: |
| case iadd16: |
| case iadd32: |
| case iadd64: |
| case fadd16: |
| case fadd32: |
| case fadd64: |
| case ior8: |
| case ior16: |
| case ior32: |
| case ior64: |
| case ixor8: |
| case ixor16: |
| case ixor32: |
| case ixor64: |
| case umax8: |
| case umax16: |
| case umax32: |
| case umax64: return 0; |
| case imul8: |
| case imul16: |
| case imul32: |
| case imul64: return idx ? 0 : 1; |
| case fmul16: return 0x3c00u; /* 1.0 */ |
| case fmul32: return 0x3f800000u; /* 1.0 */ |
| case fmul64: return idx ? 0x3ff00000u : 0u; /* 1.0 */ |
| case imin8: return INT8_MAX; |
| case imin16: return INT16_MAX; |
| case imin32: return INT32_MAX; |
| case imin64: return idx ? 0x7fffffffu : 0xffffffffu; |
| case imax8: return INT8_MIN; |
| case imax16: return INT16_MIN; |
| case imax32: return INT32_MIN; |
| case imax64: return idx ? 0x80000000u : 0; |
| case umin8: |
| case umin16: |
| case iand8: |
| case iand16: return 0xffffffffu; |
| case umin32: |
| case umin64: |
| case iand32: |
| case iand64: return 0xffffffffu; |
| case fmin16: return 0x7c00u; /* infinity */ |
| case fmin32: return 0x7f800000u; /* infinity */ |
| case fmin64: return idx ? 0x7ff00000u : 0u; /* infinity */ |
| case fmax16: return 0xfc00u; /* negative infinity */ |
| case fmax32: return 0xff800000u; /* negative infinity */ |
| case fmax64: return idx ? 0xfff00000u : 0u; /* negative infinity */ |
| default: unreachable("Invalid reduction operation"); break; |
| } |
| return 0; |
| } |
| |
| bool |
| needs_exec_mask(const Instruction* instr) |
| { |
| if (instr->isVALU()) { |
| return instr->opcode != aco_opcode::v_readlane_b32 && |
| instr->opcode != aco_opcode::v_readlane_b32_e64 && |
| instr->opcode != aco_opcode::v_writelane_b32 && |
| instr->opcode != aco_opcode::v_writelane_b32_e64; |
| } |
| |
| if (instr->isVMEM() || instr->isFlatLike()) |
| return true; |
| |
| if (instr->isSALU() || instr->isBranch() || instr->isSMEM() || instr->isBarrier()) |
| return instr->reads_exec(); |
| |
| if (instr->isPseudo()) { |
| switch (instr->opcode) { |
| case aco_opcode::p_create_vector: |
| case aco_opcode::p_extract_vector: |
| case aco_opcode::p_split_vector: |
| case aco_opcode::p_phi: |
| case aco_opcode::p_parallelcopy: |
| for (Definition def : instr->definitions) { |
| if (def.getTemp().type() == RegType::vgpr) |
| return true; |
| } |
| return instr->reads_exec(); |
| case aco_opcode::p_spill: |
| case aco_opcode::p_reload: |
| case aco_opcode::p_end_linear_vgpr: |
| case aco_opcode::p_logical_start: |
| case aco_opcode::p_logical_end: |
| case aco_opcode::p_startpgm: |
| case aco_opcode::p_init_scratch: return instr->reads_exec(); |
| default: break; |
| } |
| } |
| |
| return true; |
| } |
| |
| struct CmpInfo { |
| aco_opcode ordered; |
| aco_opcode unordered; |
| aco_opcode swapped; |
| aco_opcode inverse; |
| aco_opcode vcmpx; |
| aco_opcode f32; |
| unsigned size; |
| }; |
| |
| ALWAYS_INLINE bool |
| get_cmp_info(aco_opcode op, CmpInfo* info) |
| { |
| info->ordered = aco_opcode::num_opcodes; |
| info->unordered = aco_opcode::num_opcodes; |
| info->swapped = aco_opcode::num_opcodes; |
| info->inverse = aco_opcode::num_opcodes; |
| info->f32 = aco_opcode::num_opcodes; |
| switch (op) { |
| // clang-format off |
| #define CMP2(ord, unord, ord_swap, unord_swap, sz) \ |
| case aco_opcode::v_cmp_##ord##_f##sz: \ |
| case aco_opcode::v_cmp_n##unord##_f##sz: \ |
| info->ordered = aco_opcode::v_cmp_##ord##_f##sz; \ |
| info->unordered = aco_opcode::v_cmp_n##unord##_f##sz; \ |
| info->swapped = op == aco_opcode::v_cmp_##ord##_f##sz ? aco_opcode::v_cmp_##ord_swap##_f##sz \ |
| : aco_opcode::v_cmp_n##unord_swap##_f##sz; \ |
| info->inverse = op == aco_opcode::v_cmp_n##unord##_f##sz ? aco_opcode::v_cmp_##unord##_f##sz \ |
| : aco_opcode::v_cmp_n##ord##_f##sz; \ |
| info->f32 = op == aco_opcode::v_cmp_##ord##_f##sz ? aco_opcode::v_cmp_##ord##_f32 \ |
| : aco_opcode::v_cmp_n##unord##_f32; \ |
| info->vcmpx = op == aco_opcode::v_cmp_##ord##_f##sz ? aco_opcode::v_cmpx_##ord##_f##sz \ |
| : aco_opcode::v_cmpx_n##unord##_f##sz; \ |
| info->size = sz; \ |
| return true; |
| #define CMP(ord, unord, ord_swap, unord_swap) \ |
| CMP2(ord, unord, ord_swap, unord_swap, 16) \ |
| CMP2(ord, unord, ord_swap, unord_swap, 32) \ |
| CMP2(ord, unord, ord_swap, unord_swap, 64) |
| CMP(lt, /*n*/ge, gt, /*n*/le) |
| CMP(eq, /*n*/lg, eq, /*n*/lg) |
| CMP(le, /*n*/gt, ge, /*n*/lt) |
| CMP(gt, /*n*/le, lt, /*n*/ge) |
| CMP(lg, /*n*/eq, lg, /*n*/eq) |
| CMP(ge, /*n*/lt, le, /*n*/gt) |
| #undef CMP |
| #undef CMP2 |
| #define ORD_TEST(sz) \ |
| case aco_opcode::v_cmp_u_f##sz: \ |
| info->f32 = aco_opcode::v_cmp_u_f32; \ |
| info->swapped = aco_opcode::v_cmp_u_f##sz; \ |
| info->inverse = aco_opcode::v_cmp_o_f##sz; \ |
| info->vcmpx = aco_opcode::v_cmpx_u_f##sz; \ |
| info->size = sz; \ |
| return true; \ |
| case aco_opcode::v_cmp_o_f##sz: \ |
| info->f32 = aco_opcode::v_cmp_o_f32; \ |
| info->swapped = aco_opcode::v_cmp_o_f##sz; \ |
| info->inverse = aco_opcode::v_cmp_u_f##sz; \ |
| info->vcmpx = aco_opcode::v_cmpx_o_f##sz; \ |
| info->size = sz; \ |
| return true; |
| ORD_TEST(16) |
| ORD_TEST(32) |
| ORD_TEST(64) |
| #undef ORD_TEST |
| #define CMPI2(op, swap, inv, type, sz) \ |
| case aco_opcode::v_cmp_##op##_##type##sz: \ |
| info->swapped = aco_opcode::v_cmp_##swap##_##type##sz; \ |
| info->inverse = aco_opcode::v_cmp_##inv##_##type##sz; \ |
| info->vcmpx = aco_opcode::v_cmpx_##op##_##type##sz; \ |
| info->size = sz; \ |
| return true; |
| #define CMPI(op, swap, inv) \ |
| CMPI2(op, swap, inv, i, 16) \ |
| CMPI2(op, swap, inv, u, 16) \ |
| CMPI2(op, swap, inv, i, 32) \ |
| CMPI2(op, swap, inv, u, 32) \ |
| CMPI2(op, swap, inv, i, 64) \ |
| CMPI2(op, swap, inv, u, 64) |
| CMPI(lt, gt, ge) |
| CMPI(eq, eq, lg) |
| CMPI(le, ge, gt) |
| CMPI(gt, lt, le) |
| CMPI(lg, lg, eq) |
| CMPI(ge, le, lt) |
| #undef CMPI |
| #undef CMPI2 |
| #define CMPCLASS(sz) \ |
| case aco_opcode::v_cmp_class_f##sz: \ |
| info->vcmpx = aco_opcode::v_cmpx_class_f##sz; \ |
| info->size = sz; \ |
| return true; |
| CMPCLASS(16) |
| CMPCLASS(32) |
| CMPCLASS(64) |
| #undef CMPCLASS |
| // clang-format on |
| default: return false; |
| } |
| } |
| |
| aco_opcode |
| get_ordered(aco_opcode op) |
| { |
| CmpInfo info; |
| return get_cmp_info(op, &info) ? info.ordered : aco_opcode::num_opcodes; |
| } |
| |
| aco_opcode |
| get_unordered(aco_opcode op) |
| { |
| CmpInfo info; |
| return get_cmp_info(op, &info) ? info.unordered : aco_opcode::num_opcodes; |
| } |
| |
| aco_opcode |
| get_inverse(aco_opcode op) |
| { |
| CmpInfo info; |
| return get_cmp_info(op, &info) ? info.inverse : aco_opcode::num_opcodes; |
| } |
| |
| aco_opcode |
| get_f32_cmp(aco_opcode op) |
| { |
| CmpInfo info; |
| return get_cmp_info(op, &info) ? info.f32 : aco_opcode::num_opcodes; |
| } |
| |
| aco_opcode |
| get_vcmpx(aco_opcode op) |
| { |
| CmpInfo info; |
| return get_cmp_info(op, &info) ? info.vcmpx : aco_opcode::num_opcodes; |
| } |
| |
| unsigned |
| get_cmp_bitsize(aco_opcode op) |
| { |
| CmpInfo info; |
| return get_cmp_info(op, &info) ? info.size : 0; |
| } |
| |
| bool |
| is_fp_cmp(aco_opcode op) |
| { |
| CmpInfo info; |
| return get_cmp_info(op, &info) && info.ordered != aco_opcode::num_opcodes; |
| } |
| |
| bool |
| is_cmpx(aco_opcode op) |
| { |
| CmpInfo info; |
| return !get_cmp_info(op, &info); |
| } |
| |
| bool |
| can_swap_operands(aco_ptr<Instruction>& instr, aco_opcode* new_op) |
| { |
| if (instr->isDPP()) |
| return false; |
| |
| if (instr->operands[0].isConstant() || |
| (instr->operands[0].isTemp() && instr->operands[0].getTemp().type() == RegType::sgpr)) |
| return false; |
| |
| switch (instr->opcode) { |
| case aco_opcode::v_add_u32: |
| case aco_opcode::v_add_co_u32: |
| case aco_opcode::v_add_co_u32_e64: |
| case aco_opcode::v_add_i32: |
| case aco_opcode::v_add_f16: |
| case aco_opcode::v_add_f32: |
| case aco_opcode::v_mul_f16: |
| case aco_opcode::v_mul_f32: |
| case aco_opcode::v_or_b32: |
| case aco_opcode::v_and_b32: |
| case aco_opcode::v_xor_b32: |
| case aco_opcode::v_max_f16: |
| case aco_opcode::v_max_f32: |
| case aco_opcode::v_min_f16: |
| case aco_opcode::v_min_f32: |
| case aco_opcode::v_max_i32: |
| case aco_opcode::v_min_i32: |
| case aco_opcode::v_max_u32: |
| case aco_opcode::v_min_u32: |
| case aco_opcode::v_max_i16: |
| case aco_opcode::v_min_i16: |
| case aco_opcode::v_max_u16: |
| case aco_opcode::v_min_u16: |
| case aco_opcode::v_max_i16_e64: |
| case aco_opcode::v_min_i16_e64: |
| case aco_opcode::v_max_u16_e64: |
| case aco_opcode::v_min_u16_e64: *new_op = instr->opcode; return true; |
| case aco_opcode::v_sub_f16: *new_op = aco_opcode::v_subrev_f16; return true; |
| case aco_opcode::v_sub_f32: *new_op = aco_opcode::v_subrev_f32; return true; |
| case aco_opcode::v_sub_co_u32: *new_op = aco_opcode::v_subrev_co_u32; return true; |
| case aco_opcode::v_sub_u16: *new_op = aco_opcode::v_subrev_u16; return true; |
| case aco_opcode::v_sub_u32: *new_op = aco_opcode::v_subrev_u32; return true; |
| default: { |
| CmpInfo info; |
| if (get_cmp_info(instr->opcode, &info) && info.swapped != aco_opcode::num_opcodes) { |
| *new_op = info.swapped; |
| return true; |
| } |
| return false; |
| } |
| } |
| } |
| |
| wait_imm::wait_imm() : vm(unset_counter), exp(unset_counter), lgkm(unset_counter), vs(unset_counter) |
| {} |
| wait_imm::wait_imm(uint16_t vm_, uint16_t exp_, uint16_t lgkm_, uint16_t vs_) |
| : vm(vm_), exp(exp_), lgkm(lgkm_), vs(vs_) |
| {} |
| |
| wait_imm::wait_imm(enum amd_gfx_level gfx_level, uint16_t packed) : vs(unset_counter) |
| { |
| if (gfx_level == GFX11) { |
| vm = (packed >> 10) & 0x3f; |
| lgkm = (packed >> 4) & 0x3f; |
| exp = packed & 0x7; |
| } else { |
| vm = packed & 0xf; |
| if (gfx_level >= GFX9) |
| vm |= (packed >> 10) & 0x30; |
| |
| exp = (packed >> 4) & 0x7; |
| |
| lgkm = (packed >> 8) & 0xf; |
| if (gfx_level >= GFX10) |
| lgkm |= (packed >> 8) & 0x30; |
| } |
| |
| if (vm == (gfx_level >= GFX9 ? 0x3f : 0xf)) |
| vm = wait_imm::unset_counter; |
| if (exp == 0x7) |
| exp = wait_imm::unset_counter; |
| if (lgkm == (gfx_level >= GFX10 ? 0x3f : 0xf)) |
| lgkm = wait_imm::unset_counter; |
| } |
| |
| uint16_t |
| wait_imm::pack(enum amd_gfx_level gfx_level) const |
| { |
| uint16_t imm = 0; |
| assert(exp == unset_counter || exp <= 0x7); |
| switch (gfx_level) { |
| case GFX11: |
| assert(lgkm == unset_counter || lgkm <= 0x3f); |
| assert(vm == unset_counter || vm <= 0x3f); |
| imm = ((vm & 0x3f) << 10) | ((lgkm & 0x3f) << 4) | (exp & 0x7); |
| break; |
| case GFX10: |
| case GFX10_3: |
| assert(lgkm == unset_counter || lgkm <= 0x3f); |
| assert(vm == unset_counter || vm <= 0x3f); |
| imm = ((vm & 0x30) << 10) | ((lgkm & 0x3f) << 8) | ((exp & 0x7) << 4) | (vm & 0xf); |
| break; |
| case GFX9: |
| assert(lgkm == unset_counter || lgkm <= 0xf); |
| assert(vm == unset_counter || vm <= 0x3f); |
| imm = ((vm & 0x30) << 10) | ((lgkm & 0xf) << 8) | ((exp & 0x7) << 4) | (vm & 0xf); |
| break; |
| default: |
| assert(lgkm == unset_counter || lgkm <= 0xf); |
| assert(vm == unset_counter || vm <= 0xf); |
| imm = ((lgkm & 0xf) << 8) | ((exp & 0x7) << 4) | (vm & 0xf); |
| break; |
| } |
| if (gfx_level < GFX9 && vm == wait_imm::unset_counter) |
| imm |= 0xc000; /* should have no effect on pre-GFX9 and now we won't have to worry about the |
| architecture when interpreting the immediate */ |
| if (gfx_level < GFX10 && lgkm == wait_imm::unset_counter) |
| imm |= 0x3000; /* should have no effect on pre-GFX10 and now we won't have to worry about the |
| architecture when interpreting the immediate */ |
| return imm; |
| } |
| |
| bool |
| wait_imm::combine(const wait_imm& other) |
| { |
| bool changed = other.vm < vm || other.exp < exp || other.lgkm < lgkm || other.vs < vs; |
| vm = std::min(vm, other.vm); |
| exp = std::min(exp, other.exp); |
| lgkm = std::min(lgkm, other.lgkm); |
| vs = std::min(vs, other.vs); |
| return changed; |
| } |
| |
| bool |
| wait_imm::empty() const |
| { |
| return vm == unset_counter && exp == unset_counter && lgkm == unset_counter && |
| vs == unset_counter; |
| } |
| |
| bool |
| should_form_clause(const Instruction* a, const Instruction* b) |
| { |
| /* Vertex attribute loads from the same binding likely load from similar addresses */ |
| unsigned a_vtx_binding = |
| a->isMUBUF() ? a->mubuf().vtx_binding : (a->isMTBUF() ? a->mtbuf().vtx_binding : 0); |
| unsigned b_vtx_binding = |
| b->isMUBUF() ? b->mubuf().vtx_binding : (b->isMTBUF() ? b->mtbuf().vtx_binding : 0); |
| if (a_vtx_binding && a_vtx_binding == b_vtx_binding) |
| return true; |
| |
| if (a->format != b->format) |
| return false; |
| |
| /* Assume loads which don't use descriptors might load from similar addresses. */ |
| if (a->isFlatLike()) |
| return true; |
| if (a->isSMEM() && a->operands[0].bytes() == 8 && b->operands[0].bytes() == 8) |
| return true; |
| |
| /* If they load from the same descriptor, assume they might load from similar |
| * addresses. |
| */ |
| if (a->isVMEM() || a->isSMEM()) |
| return a->operands[0].tempId() == b->operands[0].tempId(); |
| |
| return false; |
| } |
| |
| bool |
| dealloc_vgprs(Program* program) |
| { |
| if (program->gfx_level < GFX11) |
| return false; |
| |
| /* skip if deallocating VGPRs won't increase occupancy */ |
| uint16_t max_waves = program->dev.max_wave64_per_simd * (64 / program->wave_size); |
| max_waves = max_suitable_waves(program, max_waves); |
| if (program->max_reg_demand.vgpr <= get_addr_vgpr_from_waves(program, max_waves)) |
| return false; |
| |
| Block& block = program->blocks.back(); |
| |
| /* don't bother checking if there is a pending VMEM store or export: there almost always is */ |
| Builder bld(program); |
| if (!block.instructions.empty() && block.instructions.back()->opcode == aco_opcode::s_endpgm) { |
| bld.reset(&block.instructions, block.instructions.begin() + (block.instructions.size() - 1)); |
| bld.sopp(aco_opcode::s_sendmsg, -1, sendmsg_dealloc_vgprs); |
| } |
| |
| return true; |
| } |
| |
| } // namespace aco |
