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slang: Handle OOM condition in new_instruction().

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This commit is contained in:
Michal Krol 2009-11-10 02:46:24 +01:00
parent 031fbb9681
commit 83760d961f
1 changed files with 81 additions and 20 deletions
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101
src/mesa/shader/slang/slang_emit.c
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@ -431,6 +431,9 @@ new_instruction(slang_emit_info *emitInfo, gl_inst_opcode opcode)
_mesa_realloc_instructions(prog->Instructions,
prog->NumInstructions,
emitInfo->MaxInstructions);
if (!prog->Instructions) {
return NULL;
}
}
inst = prog->Instructions + prog->NumInstructions;
@ -451,12 +454,14 @@ emit_arl_load(slang_emit_info *emitInfo,
gl_register_file file, GLint index, GLuint swizzle)
{
struct prog_instruction *inst = new_instruction(emitInfo, OPCODE_ARL);
inst->SrcReg[0].File = file;
inst->SrcReg[0].Index = index;
inst->SrcReg[0].Swizzle = fix_swizzle(swizzle);
inst->DstReg.File = PROGRAM_ADDRESS;
inst->DstReg.Index = 0;
inst->DstReg.WriteMask = WRITEMASK_X;
if (inst) {
inst->SrcReg[0].File = file;
inst->SrcReg[0].Index = index;
inst->SrcReg[0].Swizzle = fix_swizzle(swizzle);
inst->DstReg.File = PROGRAM_ADDRESS;
inst->DstReg.Index = 0;
inst->DstReg.WriteMask = WRITEMASK_X;
}
return inst;
}
@ -765,7 +770,9 @@ static struct prog_instruction *
emit_comment(slang_emit_info *emitInfo, const char *comment)
{
struct prog_instruction *inst = new_instruction(emitInfo, OPCODE_NOP);
inst_comment(inst, comment);
if (inst) {
inst_comment(inst, comment);
}
return inst;
}
@ -1191,6 +1198,9 @@ emit_fcall(slang_emit_info *emitInfo, slang_ir_node *n)
* really just a NOP to attach the label to.
*/
inst = new_instruction(emitInfo, OPCODE_BGNSUB);
if (!inst) {
return NULL;
}
inst_comment(inst, n->Label->Name);
}
@ -1202,10 +1212,16 @@ emit_fcall(slang_emit_info *emitInfo, slang_ir_node *n)
inst = prev_instruction(emitInfo);
if (inst && inst->Opcode != OPCODE_RET) {
inst = new_instruction(emitInfo, OPCODE_RET);
if (!inst) {
return NULL;
}
}
if (emitInfo->EmitBeginEndSub) {
inst = new_instruction(emitInfo, OPCODE_ENDSUB);
if (!inst) {
return NULL;
}
inst_comment(inst, n->Label->Name);
}
@ -1215,6 +1231,9 @@ emit_fcall(slang_emit_info *emitInfo, slang_ir_node *n)
/* emit the function call */
inst = new_instruction(emitInfo, OPCODE_CAL);
if (!inst) {
return NULL;
}
/* The branch target is just the subroutine number (changed later) */
inst->BranchTarget = subroutineId;
inst_comment(inst, n->Label->Name);
@ -1249,6 +1268,9 @@ emit_kill(slang_emit_info *emitInfo)
* Note that ARB-KILL depends on sign of vector operand.
*/
inst = new_instruction(emitInfo, OPCODE_KIL_NV);
if (!inst) {
return NULL;
}
inst->DstReg.CondMask = COND_TR; /* always kill */
assert(emitInfo->prog->Target == GL_FRAGMENT_PROGRAM_ARB);
@ -1600,8 +1622,10 @@ emit_if(slang_emit_info *emitInfo, slang_ir_node *n)
if (emitInfo->EmitHighLevelInstructions) {
if (emitInfo->EmitCondCodes) {
/* IF condcode THEN ... */
struct prog_instruction *ifInst;
ifInst = new_instruction(emitInfo, OPCODE_IF);
struct prog_instruction *ifInst = new_instruction(emitInfo, OPCODE_IF);
if (!ifInst) {
return NULL;
}
ifInst->DstReg.CondMask = COND_NE; /* if cond is non-zero */
/* only test the cond code (1 of 4) that was updated by the
* previous instruction.
@ -1620,6 +1644,9 @@ emit_if(slang_emit_info *emitInfo, slang_ir_node *n)
else {
/* conditional jump to else, or endif */
struct prog_instruction *ifInst = new_instruction(emitInfo, OPCODE_BRA);
if (!ifInst) {
return NULL;
}
ifInst->DstReg.CondMask = COND_EQ; /* BRA if cond is zero */
inst_comment(ifInst, "if zero");
ifInst->DstReg.CondSwizzle = writemask_to_swizzle(condWritemask);
@ -1632,12 +1659,17 @@ emit_if(slang_emit_info *emitInfo, slang_ir_node *n)
/* have else body */
elseInstLoc = prog->NumInstructions;
if (emitInfo->EmitHighLevelInstructions) {
(void) new_instruction(emitInfo, OPCODE_ELSE);
struct prog_instruction *inst = new_instruction(emitInfo, OPCODE_ELSE);
if (!inst) {
return NULL;
}
}
else {
/* jump to endif instruction */
struct prog_instruction *inst;
inst = new_instruction(emitInfo, OPCODE_BRA);
struct prog_instruction *inst = new_instruction(emitInfo, OPCODE_BRA);
if (!inst) {
return NULL;
}
inst_comment(inst, "else");
inst->DstReg.CondMask = COND_TR; /* always branch */
}
@ -1650,7 +1682,10 @@ emit_if(slang_emit_info *emitInfo, slang_ir_node *n)
}
if (emitInfo->EmitHighLevelInstructions) {
(void) new_instruction(emitInfo, OPCODE_ENDIF);
struct prog_instruction *inst = new_instruction(emitInfo, OPCODE_ENDIF);
if (!inst) {
return NULL;
}
}
if (n->Children[2]) {
@ -1671,7 +1706,10 @@ emit_loop(slang_emit_info *emitInfo, slang_ir_node *n)
/* emit OPCODE_BGNLOOP */
beginInstLoc = prog->NumInstructions;
if (emitInfo->EmitHighLevelInstructions) {
(void) new_instruction(emitInfo, OPCODE_BGNLOOP);
struct prog_instruction *inst = new_instruction(emitInfo, OPCODE_BGNLOOP);
if (!inst) {
return NULL;
}
}
/* body */
@ -1689,10 +1727,16 @@ emit_loop(slang_emit_info *emitInfo, slang_ir_node *n)
if (emitInfo->EmitHighLevelInstructions) {
/* emit OPCODE_ENDLOOP */
endInst = new_instruction(emitInfo, OPCODE_ENDLOOP);
if (!endInst) {
return NULL;
}
}
else {
/* emit unconditional BRA-nch */
endInst = new_instruction(emitInfo, OPCODE_BRA);
if (!endInst) {
return NULL;
}
endInst->DstReg.CondMask = COND_TR; /* always true */
}
/* ENDLOOP's BranchTarget points to the BGNLOOP inst */
@ -1762,7 +1806,9 @@ emit_cont_break(slang_emit_info *emitInfo, slang_ir_node *n)
}
n->InstLocation = emitInfo->prog->NumInstructions;
inst = new_instruction(emitInfo, opcode);
inst->DstReg.CondMask = COND_TR; /* always true */
if (inst) {
inst->DstReg.CondMask = COND_TR; /* always true */
}
return inst;
}
@ -1798,8 +1844,10 @@ emit_cont_break_if_true(slang_emit_info *emitInfo, slang_ir_node *n)
*/
const GLuint condWritemask = inst->DstReg.WriteMask;
inst = new_instruction(emitInfo, opcode);
inst->DstReg.CondMask = COND_NE;
inst->DstReg.CondSwizzle = writemask_to_swizzle(condWritemask);
if (inst) {
inst->DstReg.CondMask = COND_NE;
inst->DstReg.CondSwizzle = writemask_to_swizzle(condWritemask);
}
return inst;
}
else {
@ -1817,7 +1865,13 @@ emit_cont_break_if_true(slang_emit_info *emitInfo, slang_ir_node *n)
n->InstLocation = emitInfo->prog->NumInstructions;
inst = new_instruction(emitInfo, opcode);
if (!inst) {
return NULL;
}
inst = new_instruction(emitInfo, OPCODE_ENDIF);
if (!inst) {
return NULL;
}
emitInfo->prog->Instructions[ifInstLoc].BranchTarget
= emitInfo->prog->NumInstructions;
@ -1828,8 +1882,10 @@ emit_cont_break_if_true(slang_emit_info *emitInfo, slang_ir_node *n)
const GLuint condWritemask = inst->DstReg.WriteMask;
assert(emitInfo->EmitCondCodes);
inst = new_instruction(emitInfo, OPCODE_BRA);
inst->DstReg.CondMask = COND_NE;
inst->DstReg.CondSwizzle = writemask_to_swizzle(condWritemask);
if (inst) {
inst->DstReg.CondMask = COND_NE;
inst->DstReg.CondSwizzle = writemask_to_swizzle(condWritemask);
}
return inst;
}
}
@ -2201,7 +2257,9 @@ emit(slang_emit_info *emitInfo, slang_ir_node *n)
if (n->Comment) {
inst = new_instruction(emitInfo, OPCODE_NOP);
inst->Comment = _mesa_strdup(n->Comment);
if (inst) {
inst->Comment = _mesa_strdup(n->Comment);
}
inst = NULL;
}
@ -2503,6 +2561,9 @@ _slang_emit_code(slang_ir_node *n, slang_var_table *vt,
if (withEnd) {
struct prog_instruction *inst;
inst = new_instruction(&emitInfo, OPCODE_END);
if (!inst) {
return GL_FALSE;
}
}
_slang_resolve_subroutines(&emitInfo);