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authorEmil Velikov <[email protected]>2016-01-18 12:16:48 +0200
committerEmil Velikov <[email protected]>2016-01-26 16:08:33 +0000
commiteb63640c1d38a200a7b1540405051d3ff79d0d8a (patch)
treeda46321a41f309b1d02aeb14d5d5487791c45aeb /src/glsl/opt_conditional_discard.cpp
parenta39a8fbbaa129f4e52f2a3ad2747182e9a74d910 (diff)
glsl: move to compiler/
Signed-off-by: Emil Velikov <[email protected]> Acked-by: Matt Turner <[email protected]> Acked-by: Jose Fonseca <[email protected]>
Diffstat (limited to 'src/glsl/opt_conditional_discard.cpp')
-rw-r--r--src/glsl/opt_conditional_discard.cpp81
1 files changed, 0 insertions, 81 deletions
diff --git a/src/glsl/opt_conditional_discard.cpp b/src/glsl/opt_conditional_discard.cpp
deleted file mode 100644
index 1ca8803f643..00000000000
--- a/src/glsl/opt_conditional_discard.cpp
+++ /dev/null
@@ -1,81 +0,0 @@
-/*
- * 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.
- */
-
-/**
- * \file opt_conditional_discard.cpp
- *
- * Replace
- *
- * if (cond) discard;
- *
- * with
- *
- * (discard <condition>)
- */
-
-#include "compiler/glsl_types.h"
-#include "ir.h"
-
-namespace {
-
-class opt_conditional_discard_visitor : public ir_hierarchical_visitor {
-public:
- opt_conditional_discard_visitor()
- {
- progress = false;
- }
-
- ir_visitor_status visit_leave(ir_if *);
-
- bool progress;
-};
-
-} /* anonymous namespace */
-
-bool
-opt_conditional_discard(exec_list *instructions)
-{
- opt_conditional_discard_visitor v;
- v.run(instructions);
- return v.progress;
-}
-
-ir_visitor_status
-opt_conditional_discard_visitor::visit_leave(ir_if *ir)
-{
- /* Look for "if (...) discard" with no else clause or extra statements. */
- if (ir->then_instructions.is_empty() ||
- !ir->then_instructions.head->next->is_tail_sentinel() ||
- !((ir_instruction *) ir->then_instructions.head)->as_discard() ||
- !ir->else_instructions.is_empty())
- return visit_continue;
-
- /* Move the condition and replace the ir_if with the ir_discard. */
- ir_discard *discard = (ir_discard *) ir->then_instructions.head;
- discard->condition = ir->condition;
- ir->replace_with(discard);
-
- progress = true;
-
- return visit_continue;
-}