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author | marha <marha@users.sourceforge.net> | 2015-02-22 14:31:16 +0100 |
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committer | marha <marha@users.sourceforge.net> | 2015-02-22 14:31:16 +0100 |
commit | f1c2db43dcf35d2cf4715390bd2391c28e42a8c2 (patch) | |
tree | 46b537271afe0f6534231b1bd4cc4f91ae1fb446 /mesalib/src/glsl/nir/nir_opt_global_to_local.c | |
parent | 5e5a48ff8cd08f123601cd0625ca62a86675aac9 (diff) | |
download | vcxsrv-f1c2db43dcf35d2cf4715390bd2391c28e42a8c2.tar.gz vcxsrv-f1c2db43dcf35d2cf4715390bd2391c28e42a8c2.tar.bz2 vcxsrv-f1c2db43dcf35d2cf4715390bd2391c28e42a8c2.zip |
xwininfo fontconfig libX11 libXdmcp libfontenc libxcb libxcb/xcb-proto mesalib xserver xkeyboard-config mkfontscale git update 22 Feb 2015
xserver commit 3a06faf3fcdb7451125a46181f9152e8e59e9770
libxcb commit e3ec1f74637237ce500dfd0ca59f2e422da4e019
libxcb/xcb-proto commit 4c550465934164aab2449a125f75f4ca07816233
xkeyboard-config commit 26f344c93f8c6141e9233eb68088ba4fd56bc9ef
libX11 commit c8e19b393defd53f046ddc2da3a16881221b3c34
libXdmcp commit 9f4cac7656b221ce2a8f97e7bd31e5e23126d001
libfontenc commit de1843aaf76015c9d99416f3122d169fe331b849
mkfontscale commit 87d628f8eec170ec13bb9feefb1ce05aed07d1d6
xwininfo commit 0c49f8f2bd56b1e77721e81030ea948386dcdf4e
fontconfig commit d6d5adeb7940c0d0beb86489c2a1c2ce59e5c044
mesa commit 4359954d842caa2a9f8d4b50d70ecc789884b68b
Diffstat (limited to 'mesalib/src/glsl/nir/nir_opt_global_to_local.c')
-rw-r--r-- | mesalib/src/glsl/nir/nir_opt_global_to_local.c | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/mesalib/src/glsl/nir/nir_opt_global_to_local.c b/mesalib/src/glsl/nir/nir_opt_global_to_local.c new file mode 100644 index 000000000..00db37ba7 --- /dev/null +++ b/mesalib/src/glsl/nir/nir_opt_global_to_local.c @@ -0,0 +1,103 @@ +/* + * Copyright © 2014 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. + * + * Authors: + * Connor Abbott (cwabbott0@gmail.com) + * + */ + +#include "nir.h" + +static bool +global_to_local(nir_register *reg) +{ + nir_function_impl *impl = NULL; + + assert(reg->is_global); + + struct set_entry *entry; + set_foreach(reg->defs, entry) { + nir_instr *instr = (nir_instr *) entry->key; + nir_function_impl *instr_impl = + nir_cf_node_get_function(&instr->block->cf_node); + if (impl != NULL) { + if (impl != instr_impl) + return false; + } else { + impl = instr_impl; + } + } + + set_foreach(reg->uses, entry) { + nir_instr *instr = (nir_instr *) entry->key; + nir_function_impl *instr_impl = + nir_cf_node_get_function(&instr->block->cf_node); + if (impl != NULL) { + if (impl != instr_impl) + return false; + } else { + impl = instr_impl; + } + } + + set_foreach(reg->if_uses, entry) { + nir_if *if_stmt = (nir_if *) entry->key; + nir_function_impl *if_impl = nir_cf_node_get_function(&if_stmt->cf_node); + if (impl != NULL) { + if (impl != if_impl) + return false; + } else { + impl = if_impl; + } + } + + if (impl == NULL) { + /* this instruction is never used/defined, delete it */ + nir_reg_remove(reg); + return true; + } + + /* + * if we've gotten to this point, the register is always used/defined in + * the same implementation so we can move it to be local to that + * implementation. + */ + + exec_node_remove(®->node); + exec_list_push_tail(&impl->registers, ®->node); + reg->index = impl->reg_alloc++; + reg->is_global = false; + return true; +} + +bool +nir_opt_global_to_local(nir_shader *shader) +{ + bool progress = false; + + foreach_list_typed_safe(nir_register, reg, node, &shader->registers) { + if (global_to_local(reg)) + progress = true; + } + + return progress; +} |