head 1.1; branch 1.1.1; access; symbols netbsd-11-0-RC5:1.1.1.2 netbsd-11-0-RC4:1.1.1.2 netbsd-11-0-RC3:1.1.1.2 netbsd-11-0-RC2:1.1.1.2 netbsd-11-0-RC1:1.1.1.2 netbsd-11:1.1.1.2.0.4 netbsd-11-base:1.1.1.2 netbsd-10-1-RELEASE:1.1.1.2 netbsd-9-4-RELEASE:1.1.1.1 netbsd-10-0-RELEASE:1.1.1.2 netbsd-10-0-RC6:1.1.1.2 netbsd-10-0-RC5:1.1.1.2 netbsd-10-0-RC4:1.1.1.2 netbsd-10-0-RC3:1.1.1.2 netbsd-10-0-RC2:1.1.1.2 netbsd-10-0-RC1:1.1.1.2 netbsd-10:1.1.1.2.0.2 netbsd-10-base:1.1.1.2 netbsd-9-3-RELEASE:1.1.1.1 mesa-21-3-7:1.1.1.2 netbsd-9-2-RELEASE:1.1.1.1 netbsd-9-1-RELEASE:1.1.1.1 netbsd-9-0-RELEASE:1.1.1.1 netbsd-9-0-RC2:1.1.1.1 netbsd-9-0-RC1:1.1.1.1 mesalib-19-1-7:1.1.1.1 netbsd-9:1.1.1.1.0.2 netbsd-9-base:1.1.1.1 mesa-18-3-6:1.1.1.1 mesa-18-3-4:1.1.1.1 xorg:1.1.1; locks; strict; comment @// @; 1.1 date 2019.03.10.03.42.41; author mrg; state Exp; branches 1.1.1.1; next ; commitid r12jo1Nf3ebQKLeB; 1.1.1.1 date 2019.03.10.03.42.41; author mrg; state Exp; branches; next 1.1.1.2; commitid r12jo1Nf3ebQKLeB; 1.1.1.2 date 2022.05.09.01.23.36; author mrg; state Exp; branches; next ; commitid UEBs6hNk81DdQjDD; desc @@ 1.1 log @Initial revision @ text @/* * Copyright © 2013 Intel 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. */ /** @@file brw_dead_control_flow.cpp * * This file implements the dead control flow elimination optimization pass. */ #include "brw_shader.h" #include "brw_cfg.h" /* Look for and eliminate dead control flow: * * - if/endif * - else in else/endif * - then in if/else/endif */ bool dead_control_flow_eliminate(backend_shader *s) { bool progress = false; foreach_block_safe (block, s->cfg) { bblock_t *prev_block = block->prev(); if (!prev_block) continue; backend_instruction *const inst = block->start(); backend_instruction *const prev_inst = prev_block->end(); /* ENDIF instructions, by definition, can only be found at the start of * basic blocks. */ if (inst->opcode == BRW_OPCODE_ENDIF && prev_inst->opcode == BRW_OPCODE_ELSE) { bblock_t *const else_block = prev_block; backend_instruction *const else_inst = prev_inst; else_inst->remove(else_block); progress = true; } else if (inst->opcode == BRW_OPCODE_ENDIF && prev_inst->opcode == BRW_OPCODE_IF) { bblock_t *const endif_block = block; bblock_t *const if_block = prev_block; backend_instruction *const endif_inst = inst; backend_instruction *const if_inst = prev_inst; bblock_t *earlier_block = NULL, *later_block = NULL; if (if_block->start_ip == if_block->end_ip) { earlier_block = if_block->prev(); } else { earlier_block = if_block; } if_inst->remove(if_block); if (endif_block->start_ip == endif_block->end_ip) { later_block = endif_block->next(); } else { later_block = endif_block; } endif_inst->remove(endif_block); assert((earlier_block == NULL) == (later_block == NULL)); if (earlier_block && earlier_block->can_combine_with(later_block)) { earlier_block->combine_with(later_block); /* If ENDIF was in its own block, then we've now deleted it and * merged the two surrounding blocks, the latter of which the * __next block pointer was pointing to. */ if (endif_block != later_block) { __next = earlier_block->next(); } } progress = true; } else if (inst->opcode == BRW_OPCODE_ELSE && prev_inst->opcode == BRW_OPCODE_IF) { bblock_t *const else_block = block; backend_instruction *const if_inst = prev_inst; backend_instruction *const else_inst = inst; /* Since the else-branch is becoming the new then-branch, the * condition has to be inverted. */ if_inst->predicate_inverse = !if_inst->predicate_inverse; else_inst->remove(else_block); progress = true; } } if (progress) s->invalidate_live_intervals(); return progress; } @ 1.1.1.1 log @from maya: Import mesa 18.3.4. Mesa 18.3.4 implements the OpenGL 4.5 API. Some drivers don't support all the features required in OpenGL 4.5. @ text @@ 1.1.1.2 log @initial import of mesa 21.3.7 main changes since 19.1.7 include: - more support for Vulkan functions - better supported for newer radeonsi (both amdgpu and radeon backends) - various bug fixes in many drivers - many fixes and enhancements for intel drivers - some fixes for nvidia - OpenGL 4.6 for some drivers (intel, radeonsi) - intel Tigerlake and Rocketlake support - Vulkan 1.2 for some drivers - OpenGL 4.5, GLES 3.2, and more on llvmpipe - working Panfrost and Midgard drivers - fix warnings in radeonsi vs newer llvm @ text @a31 2 using namespace brw; d116 1 a116 1 s->invalidate_analysis(DEPENDENCY_BLOCKS | DEPENDENCY_INSTRUCTIONS); @