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added some null ptr checks to handle error recovery

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This commit is contained in:
Brian 2007-03-28 13:29:57 -06:00
parent 7e4a7fdddd
commit b463d52143
1 changed files with 15 additions and 2 deletions
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17
src/mesa/shader/slang/slang_emit.c
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@ -508,8 +508,13 @@ emit_arith(slang_emit_info *emitInfo, slang_ir_node *n)
/* normal case */
/* gen code for children */
for (i = 0; i < info->NumParams; i++)
for (i = 0; i < info->NumParams; i++) {
emit(emitInfo, n->Children[i]);
if (!n->Children[i] || !n->Children[i]->Store) {
/* error recovery */
return NULL;
}
}
/* gen this instruction and src registers */
inst = new_instruction(emitInfo, info->InstOpcode);
@ -997,6 +1002,11 @@ emit_cond(slang_emit_info *emitInfo, slang_ir_node *n)
/* emit code for the expression */
inst = emit(emitInfo, n->Children[0]);
if (!n->Children[0]->Store) {
/* error recovery */
return NULL;
}
assert(n->Children[0]->Store);
/*assert(n->Children[0]->Store->Size == 1);*/
@ -1074,7 +1084,10 @@ emit_if(slang_emit_info *emitInfo, slang_ir_node *n)
inst = emit(emitInfo, n->Children[0]); /* the condition */
if (emitInfo->EmitCondCodes) {
assert(inst);
if (!inst) {
/* error recovery */
return NULL;
}
condWritemask = inst->DstReg.WriteMask;
}