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authorJulien Cristau <jcristau@debian.org>2007-07-27 19:58:30 +0200
committerJulien Cristau <jcristau@debian.org>2007-07-27 19:58:30 +0200
commit04eee290c8dddfccf30376e60b525da136047492 (patch)
treee3a0e59857dc1d66cedef2cbeabde35dc000d19f /src/mesa/shader/slang/slang_codegen.c
parentd3a160e2174eafa68bbdbb0cf7955e23d26ea66b (diff)
parent121b4ac22072a0fbd2f3ed30cafe4e69403c72c2 (diff)
Merge branch 'mesa_7_0_branch' of git://anongit.freedesktop.org/git/mesa/mesa into debian-experimental
Diffstat (limited to 'src/mesa/shader/slang/slang_codegen.c')
-rw-r--r--src/mesa/shader/slang/slang_codegen.c56
1 files changed, 35 insertions, 21 deletions
diff --git a/src/mesa/shader/slang/slang_codegen.c b/src/mesa/shader/slang/slang_codegen.c
index 94cb6b38a46..8b2bdd74b59 100644
--- a/src/mesa/shader/slang/slang_codegen.c
+++ b/src/mesa/shader/slang/slang_codegen.c
@@ -1,6 +1,6 @@
/*
* Mesa 3-D graphics library
- * Version: 7.0.1
+ * Version: 7.1
*
* Copyright (C) 2005-2007 Brian Paul All Rights Reserved.
*
@@ -37,13 +37,13 @@
-#include "imports.h"
-#include "macros.h"
-#include "mtypes.h"
-#include "program.h"
-#include "prog_instruction.h"
-#include "prog_parameter.h"
-#include "prog_statevars.h"
+#include "main/imports.h"
+#include "main/macros.h"
+#include "main/mtypes.h"
+#include "shader/program.h"
+#include "shader/prog_instruction.h"
+#include "shader/prog_parameter.h"
+#include "shader/prog_statevars.h"
#include "slang_typeinfo.h"
#include "slang_codegen.h"
#include "slang_compile.h"
@@ -536,7 +536,7 @@ new_not(slang_ir_node *n)
static slang_ir_node *
new_inlined_function_call(slang_ir_node *code, slang_label *name)
{
- slang_ir_node *n = new_node1(IR_FUNC, code);
+ slang_ir_node *n = new_node1(IR_CALL, code);
assert(name);
if (n)
n->Label = name;
@@ -1202,17 +1202,29 @@ _slang_gen_function_call(slang_assemble_ctx *A, slang_function *fun,
/* non-assembly function */
inlined = slang_inline_function_call(A, fun, oper, dest);
if (inlined && _slang_find_node_type(inlined, SLANG_OPER_RETURN)) {
- /* This inlined function has one or more 'return' statements.
+ slang_operation *callOper;
+ /* The function we're calling has one or more 'return' statements.
* So, we can't truly inline this function because we need to
* implement 'return' with RET (and CAL).
+ * Nevertheless, we performed "inlining" to make a new instance
+ * of the function body to deal with static register allocation.
+ *
* XXX check if there's one 'return' and if it's the very last
* statement in the function - we can optimize that case.
*/
assert(inlined->type == SLANG_OPER_BLOCK_NEW_SCOPE ||
inlined->type == SLANG_OPER_SEQUENCE);
- inlined->type = SLANG_OPER_INLINED_CALL;
- inlined->fun = fun;
- inlined->label = _slang_label_new_unique((char*) fun->header.a_name);
+ if (_slang_function_has_return_value(fun) && !dest) {
+ assert(inlined->children[0].type == SLANG_OPER_VARIABLE_DECL);
+ assert(inlined->children[2].type == SLANG_OPER_IDENTIFIER);
+ callOper = &inlined->children[1];
+ }
+ else {
+ callOper = inlined;
+ }
+ callOper->type = SLANG_OPER_INLINED_CALL;
+ callOper->fun = fun;
+ callOper->label = _slang_label_new_unique((char*) fun->header.a_name);
}
}
@@ -1949,8 +1961,7 @@ static slang_ir_node *
_slang_gen_return(slang_assemble_ctx * A, slang_operation *oper)
{
const GLboolean haveReturnValue
- = (oper->num_children == 1 &&
- oper->children[0].type != SLANG_OPER_VOID);
+ = (oper->num_children == 1 && oper->children[0].type != SLANG_OPER_VOID);
/* error checking */
assert(A->CurFunction);
@@ -1960,7 +1971,7 @@ _slang_gen_return(slang_assemble_ctx * A, slang_operation *oper)
return NULL;
}
else if (!haveReturnValue &&
- A->CurFunction->header.type.specifier.type != SLANG_SPEC_VOID) {
+ A->CurFunction->header.type.specifier.type != SLANG_SPEC_VOID) {
slang_info_log_error(A->log, "return statement requires an expression");
return NULL;
}
@@ -2236,7 +2247,9 @@ _slang_gen_assignment(slang_assemble_ctx * A, slang_operation *oper)
}
if (var->type.qualifier == SLANG_QUAL_CONST ||
var->type.qualifier == SLANG_QUAL_ATTRIBUTE ||
- var->type.qualifier == SLANG_QUAL_UNIFORM) {
+ var->type.qualifier == SLANG_QUAL_UNIFORM ||
+ (var->type.qualifier == SLANG_QUAL_VARYING &&
+ A->program->Target == GL_FRAGMENT_PROGRAM_ARB)) {
slang_info_log_error(A->log,
"illegal assignment to read-only variable '%s'",
(char *) oper->children[0].a_id);
@@ -2264,10 +2277,11 @@ _slang_gen_assignment(slang_assemble_ctx * A, slang_operation *oper)
lhs = _slang_gen_operation(A, &oper->children[0]);
if (lhs) {
- if (lhs->Store->File != PROGRAM_OUTPUT &&
- lhs->Store->File != PROGRAM_TEMPORARY &&
- lhs->Store->File != PROGRAM_VARYING &&
- lhs->Store->File != PROGRAM_UNDEFINED) {
+ if (!(lhs->Store->File == PROGRAM_OUTPUT ||
+ lhs->Store->File == PROGRAM_TEMPORARY ||
+ (lhs->Store->File == PROGRAM_VARYING &&
+ A->program->Target == GL_VERTEX_PROGRAM_ARB) ||
+ lhs->Store->File == PROGRAM_UNDEFINED)) {
slang_info_log_error(A->log,
"illegal assignment to read-only l-value");
return NULL;