fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-05-05 00:58:05 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 2

don't generate IR_BREAK_IF_FALSE

Browse source
This commit is contained in:
Brian 2007-03-28 14:33:25 -06:00
parent 393a93ea32
commit 8128f7143d
1 changed files with 17 additions and 10 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

27
src/mesa/shader/slang/slang_codegen.c
View file

@ -469,6 +469,13 @@ new_float_literal(const float v[4], GLuint size)
}
static slang_ir_node *
new_not(slang_ir_node *n)
{
return new_node1(IR_NOT, n);
}
/**
* Inlined subroutine.
*/
@ -520,15 +527,15 @@ new_break(slang_ir_node *loopNode)
/**
* Make new IR_BREAK_IF_TRUE or IR_BREAK_IF_FALSE node.
* Make new IR_BREAK_IF_TRUE.
*/
static slang_ir_node *
new_break_if(slang_ir_node *loopNode, slang_ir_node *cond, GLboolean breakTrue)
new_break_if_true(slang_ir_node *loopNode, slang_ir_node *cond)
{
slang_ir_node *n;
assert(loopNode);
assert(loopNode->Opcode == IR_LOOP);
n = new_node1(breakTrue ? IR_BREAK_IF_TRUE : IR_BREAK_IF_FALSE, cond);
n = new_node1(IR_BREAK_IF_TRUE, cond);
if (n) {
/* insert this node at head of linked list */
n->List = loopNode->List;
@ -1420,8 +1427,8 @@ _slang_gen_while(slang_assemble_ctx * A, const slang_operation *oper)
}
else {
slang_ir_node *cond
= new_cond(_slang_gen_operation(A, &oper->children[0]));
breakIf = new_break_if(A->CurLoop, cond, GL_FALSE);
= new_cond(new_not(_slang_gen_operation(A, &oper->children[0])));
breakIf = new_break_if_true(A->CurLoop, cond);
}
body = _slang_gen_operation(A, &oper->children[1]);
loop->Children[0] = new_seq(breakIf, body);
@ -1480,8 +1487,8 @@ _slang_gen_do(slang_assemble_ctx * A, const slang_operation *oper)
}
else {
slang_ir_node *cond
= new_cond(_slang_gen_operation(A, &oper->children[1]));
loop->Children[1] = new_break_if(A->CurLoop, cond, GL_FALSE);
= new_cond(new_not(_slang_gen_operation(A, &oper->children[1])));
loop->Children[1] = new_break_if_true(A->CurLoop, cond);
}
/* XXX we should do infinite loop detection, as above */
@ -1516,8 +1523,8 @@ _slang_gen_for(slang_assemble_ctx * A, const slang_operation *oper)
prevLoop = A->CurLoop;
A->CurLoop = loop;
cond = new_cond(_slang_gen_operation(A, &oper->children[1]));
breakIf = new_break_if(A->CurLoop, cond, GL_FALSE);
cond = new_cond(new_not(_slang_gen_operation(A, &oper->children[1])));
breakIf = new_break_if_true(A->CurLoop, cond);
body = _slang_gen_operation(A, &oper->children[3]);
incr = _slang_gen_operation(A, &oper->children[2]);
@ -1609,7 +1616,7 @@ _slang_gen_if(slang_assemble_ctx * A, const slang_operation *oper)
if (is_operation_type(&oper->children[1], SLANG_OPER_BREAK)) {
/* Special case: generate a conditional break */
ifBody = new_break_if(A->CurLoop, cond, GL_TRUE);
ifBody = new_break_if_true(A->CurLoop, cond);
if (haveElseClause) {
elseBody = _slang_gen_operation(A, &oper->children[2]);
return new_seq(ifBody, elseBody);