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authormarha <marha@users.sourceforge.net>2014-04-13 14:28:06 +0200
committermarha <marha@users.sourceforge.net>2014-04-13 14:28:06 +0200
commit0bd141efd4832e01c8b269b8566dd5749e30ed55 (patch)
treecdad95c688236c6e2e36f13a3495c498393dabc8 /mesalib/src/glsl/opt_algebraic.cpp
parentfeab85024204c7db3ad243697fe06bf3960349a9 (diff)
parentd2ad10d03be8e6d4b150bbdf2a28ea3d5a18a2ed (diff)
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Merge remote-tracking branch 'origin/released'
Diffstat (limited to 'mesalib/src/glsl/opt_algebraic.cpp')
-rw-r--r--mesalib/src/glsl/opt_algebraic.cpp30
1 files changed, 27 insertions, 3 deletions
diff --git a/mesalib/src/glsl/opt_algebraic.cpp b/mesalib/src/glsl/opt_algebraic.cpp
index 8494bd9ec..9d5539252 100644
--- a/mesalib/src/glsl/opt_algebraic.cpp
+++ b/mesalib/src/glsl/opt_algebraic.cpp
@@ -45,10 +45,11 @@ namespace {
class ir_algebraic_visitor : public ir_rvalue_visitor {
public:
- ir_algebraic_visitor()
+ ir_algebraic_visitor(bool native_integers)
{
this->progress = false;
this->mem_ctx = NULL;
+ this->native_integers = native_integers;
}
virtual ~ir_algebraic_visitor()
@@ -70,6 +71,7 @@ public:
void *mem_ctx;
+ bool native_integers;
bool progress;
};
@@ -445,6 +447,28 @@ ir_algebraic_visitor::handle_expression(ir_expression *ir)
}
break;
+ case ir_binop_less:
+ case ir_binop_lequal:
+ case ir_binop_greater:
+ case ir_binop_gequal:
+ case ir_binop_equal:
+ case ir_binop_nequal:
+ for (int add_pos = 0; add_pos < 2; add_pos++) {
+ ir_expression *add = op_expr[add_pos];
+
+ if (!add || add->operation != ir_binop_add)
+ continue;
+
+ ir_constant *zero = op_const[1 - add_pos];
+ if (!is_vec_zero(zero))
+ continue;
+
+ return new(mem_ctx) ir_expression(ir->operation,
+ add->operands[0],
+ neg(add->operands[1]));
+ }
+ break;
+
case ir_binop_rshift:
case ir_binop_lshift:
/* 0 >> x == 0 */
@@ -623,9 +647,9 @@ ir_algebraic_visitor::handle_rvalue(ir_rvalue **rvalue)
}
bool
-do_algebraic(exec_list *instructions)
+do_algebraic(exec_list *instructions, bool native_integers)
{
- ir_algebraic_visitor v;
+ ir_algebraic_visitor v(native_integers);
visit_list_elements(&v, instructions);