glsl: Use signed array index in update_max_array_access()
Avoids a crash in case of negative array index is used in a
shader program.
Cc: <mesa-stable@lists.freedesktop.org>
Signed-off-by: Anuj Phogat <anuj.phogat@gmail.com>
Reviewed-by: Chris Forbes <chrisf@ijw.co.nz>
diff --git a/src/glsl/ast_array_index.cpp b/src/glsl/ast_array_index.cpp
index 49a8574..ff0c757 100644
--- a/src/glsl/ast_array_index.cpp
+++ b/src/glsl/ast_array_index.cpp
@@ -49,12 +49,12 @@
* loc and state to report the error.
*/
static void
-update_max_array_access(ir_rvalue *ir, unsigned idx, YYLTYPE *loc,
+update_max_array_access(ir_rvalue *ir, int idx, YYLTYPE *loc,
struct _mesa_glsl_parse_state *state)
{
if (ir_dereference_variable *deref_var = ir->as_dereference_variable()) {
ir_variable *var = deref_var->var;
- if (idx > var->data.max_array_access) {
+ if (idx > (int)var->data.max_array_access) {
var->data.max_array_access = idx;
/* Check whether this access will, as a side effect, implicitly cause
@@ -94,7 +94,7 @@
assert(max_ifc_array_access != NULL);
- if (idx > max_ifc_array_access[field_index]) {
+ if (idx > (int)max_ifc_array_access[field_index]) {
max_ifc_array_access[field_index] = idx;
/* Check whether this access will, as a side effect, implicitly