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authormarha <marha@users.sourceforge.net>2014-07-19 15:12:53 +0200
committermarha <marha@users.sourceforge.net>2014-07-19 15:12:53 +0200
commit61c36feba19d918885022042ea62d068a698c83d (patch)
treefd351953eb2193fe548e7d0e2dca06b34b7c4f4d /mesalib/src/glsl/ast_to_hir.cpp
parent3865d60ef607cbb00c819e905e40d3628b8eca29 (diff)
parentd0c30e7945e76ac119f6d867e27137c8a76f7e15 (diff)
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Merge remote-tracking branch 'origin/released'
Conflicts: mesalib/src/glsl/ir.cpp xorg-server/config/config.c xorg-server/include/callback.h xorg-server/include/colormap.h xorg-server/include/cursor.h xorg-server/include/dix.h xorg-server/include/dixfont.h xorg-server/include/dixgrabs.h xorg-server/include/gc.h xorg-server/include/gcstruct.h xorg-server/include/input.h xorg-server/include/os.h xorg-server/include/pixmap.h xorg-server/include/property.h xorg-server/include/resource.h xorg-server/include/scrnintstr.h xorg-server/include/window.h xorg-server/include/xkbsrv.h xorg-server/mi/mi.h
Diffstat (limited to 'mesalib/src/glsl/ast_to_hir.cpp')
-rw-r--r--mesalib/src/glsl/ast_to_hir.cpp87
1 files changed, 81 insertions, 6 deletions
diff --git a/mesalib/src/glsl/ast_to_hir.cpp b/mesalib/src/glsl/ast_to_hir.cpp
index 885bee547..328cd1b1b 100644
--- a/mesalib/src/glsl/ast_to_hir.cpp
+++ b/mesalib/src/glsl/ast_to_hir.cpp
@@ -4513,6 +4513,12 @@ ast_switch_statement::hir(exec_list *instructions,
instructions->push_tail(new(ctx) ir_assignment(deref_is_break_var,
is_break_val));
+ state->switch_state.run_default =
+ new(ctx) ir_variable(glsl_type::bool_type,
+ "run_default_tmp",
+ ir_var_temporary);
+ instructions->push_tail(state->switch_state.run_default);
+
/* Cache test expression.
*/
test_to_hir(instructions, state);
@@ -4567,8 +4573,71 @@ ir_rvalue *
ast_case_statement_list::hir(exec_list *instructions,
struct _mesa_glsl_parse_state *state)
{
- foreach_list_typed (ast_case_statement, case_stmt, link, & this->cases)
- case_stmt->hir(instructions, state);
+ exec_list default_case, after_default, tmp;
+
+ foreach_list_typed (ast_case_statement, case_stmt, link, & this->cases) {
+ case_stmt->hir(&tmp, state);
+
+ /* Default case. */
+ if (state->switch_state.previous_default && default_case.is_empty()) {
+ default_case.append_list(&tmp);
+ continue;
+ }
+
+ /* If default case found, append 'after_default' list. */
+ if (!default_case.is_empty())
+ after_default.append_list(&tmp);
+ else
+ instructions->append_list(&tmp);
+ }
+
+ /* Handle the default case. This is done here because default might not be
+ * the last case. We need to add checks against following cases first to see
+ * if default should be chosen or not.
+ */
+ if (!default_case.is_empty()) {
+
+ /* Default case was the last one, no checks required. */
+ if (after_default.is_empty()) {
+ instructions->append_list(&default_case);
+ return NULL;
+ }
+
+ ir_rvalue *const true_val = new (state) ir_constant(true);
+ ir_dereference_variable *deref_run_default_var =
+ new(state) ir_dereference_variable(state->switch_state.run_default);
+
+ /* Choose to run default case initially, following conditional
+ * assignments might change this.
+ */
+ ir_assignment *const init_var =
+ new(state) ir_assignment(deref_run_default_var, true_val);
+ instructions->push_tail(init_var);
+
+ foreach_in_list(ir_instruction, ir, &after_default) {
+ ir_assignment *assign = ir->as_assignment();
+
+ if (!assign)
+ continue;
+
+ /* Clone the check between case label and init expression. */
+ ir_expression *exp = (ir_expression*) assign->condition;
+ ir_expression *clone = exp->clone(state, NULL);
+
+ ir_dereference_variable *deref_var =
+ new(state) ir_dereference_variable(state->switch_state.run_default);
+ ir_rvalue *const false_val = new (state) ir_constant(false);
+
+ ir_assignment *const set_false =
+ new(state) ir_assignment(deref_var, false_val, clone);
+
+ instructions->push_tail(set_false);
+ }
+
+ /* Append default case and all cases after it. */
+ instructions->append_list(&default_case);
+ instructions->append_list(&after_default);
+ }
/* Case statements do not have r-values. */
return NULL;
@@ -4728,9 +4797,17 @@ ast_case_label::hir(exec_list *instructions,
}
state->switch_state.previous_default = this;
+ /* Set fallthru condition on 'run_default' bool. */
+ ir_dereference_variable *deref_run_default =
+ new(ctx) ir_dereference_variable(state->switch_state.run_default);
+ ir_rvalue *const cond_true = new(ctx) ir_constant(true);
+ ir_expression *test_cond = new(ctx) ir_expression(ir_binop_all_equal,
+ cond_true,
+ deref_run_default);
+
/* Set falltrhu state. */
ir_assignment *set_fallthru =
- new(ctx) ir_assignment(deref_fallthru_var, true_val);
+ new(ctx) ir_assignment(deref_fallthru_var, true_val, test_cond);
instructions->push_tail(set_fallthru);
}
@@ -5007,9 +5084,7 @@ ast_process_structure_or_interface_block(exec_list *instructions,
* 'declarations' list in each of the elements.
*/
foreach_list_typed (ast_declarator_list, decl_list, link, declarations) {
- foreach_list_typed (ast_declaration, decl, link, &decl_list->declarations) {
- decl_count++;
- }
+ decl_count += decl_list->declarations.length();
}
/* Allocate storage for the fields and process the field