Minor optimization: no-op CAL when ExecMask==0x0.

2007-10-02 14:25:43 -06:00
parent 6aab3e3d26
commit 8955bc3458
1 changed files with 6 additions and 3 deletions
@@ -1911,9 +1911,12 @@ exec_instruction(
      break;

   case TGSI_OPCODE_CAL:
-      /* note that PC was already incremented above */
-      mach->CallStack[mach->CallStackTop++] = *pc;
-      *pc = inst->InstructionExtLabel.Label;
+      /* skip the call if no execution channels are enabled */
+      if (mach->ExecMask) {
+         /* note that PC was already incremented above */
+         mach->CallStack[mach->CallStackTop++] = *pc;
+         *pc = inst->InstructionExtLabel.Label;
+      }
      break;

   case TGSI_OPCODE_RET: