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Diffstat (limited to 'src/mesa/shader/slang/slang_emit.c')
-rw-r--r--src/mesa/shader/slang/slang_emit.c115
1 files changed, 66 insertions, 49 deletions
diff --git a/src/mesa/shader/slang/slang_emit.c b/src/mesa/shader/slang/slang_emit.c
index dd719337657..46d72e24e3c 100644
--- a/src/mesa/shader/slang/slang_emit.c
+++ b/src/mesa/shader/slang/slang_emit.c
@@ -171,7 +171,7 @@ free_temp_storage(slang_var_table *vt, slang_ir_node *n)
_slang_free_temp(vt, n->Store);
n->Store->Index = -1;
n->Store->Size = -1;
- _mesa_free(n->Store);
+ /*_mesa_free(n->Store);*/ /* XXX leak */
n->Store = NULL;
}
}
@@ -1078,17 +1078,20 @@ static struct prog_instruction *
emit_if(slang_emit_info *emitInfo, slang_ir_node *n)
{
struct gl_program *prog = emitInfo->prog;
- struct prog_instruction *ifInst, *inst;
GLuint ifInstLoc, elseInstLoc = 0;
GLuint condWritemask = 0;
- inst = emit(emitInfo, n->Children[0]); /* the condition */
- if (emitInfo->EmitCondCodes) {
- if (!inst) {
- /* error recovery */
- return NULL;
+ /* emit condition expression code */
+ {
+ struct prog_instruction *inst;
+ inst = emit(emitInfo, n->Children[0]);
+ if (emitInfo->EmitCondCodes) {
+ if (!inst) {
+ /* error recovery */
+ return NULL;
+ }
+ condWritemask = inst->DstReg.WriteMask;
}
- condWritemask = inst->DstReg.WriteMask;
}
#if 0
@@ -1097,7 +1100,7 @@ emit_if(slang_emit_info *emitInfo, slang_ir_node *n)
ifInstLoc = prog->NumInstructions;
if (emitInfo->EmitHighLevelInstructions) {
- ifInst = new_instruction(emitInfo, OPCODE_IF);
+ struct prog_instruction *ifInst = new_instruction(emitInfo, OPCODE_IF);
if (emitInfo->EmitCondCodes) {
ifInst->DstReg.CondMask = COND_NE; /* if cond is non-zero */
/* only test the cond code (1 of 4) that was updated by the
@@ -1112,7 +1115,7 @@ emit_if(slang_emit_info *emitInfo, slang_ir_node *n)
}
else {
/* conditional jump to else, or endif */
- ifInst = new_instruction(emitInfo, OPCODE_BRA);
+ struct prog_instruction *ifInst = new_instruction(emitInfo, OPCODE_BRA);
ifInst->DstReg.CondMask = COND_EQ; /* BRA if cond is zero */
ifInst->Comment = _mesa_strdup("if zero");
ifInst->DstReg.CondSwizzle = writemask_to_swizzle(condWritemask);
@@ -1134,15 +1137,12 @@ emit_if(slang_emit_info *emitInfo, slang_ir_node *n)
inst->Comment = _mesa_strdup("else");
inst->DstReg.CondMask = COND_TR; /* always branch */
}
- ifInst = prog->Instructions + ifInstLoc;
- ifInst->BranchTarget = prog->NumInstructions;
-
+ prog->Instructions[ifInstLoc].BranchTarget = prog->NumInstructions;
emit(emitInfo, n->Children[2]);
}
else {
/* no else body */
- ifInst = prog->Instructions + ifInstLoc;
- ifInst->BranchTarget = prog->NumInstructions /*+ 1*/;
+ prog->Instructions[ifInstLoc].BranchTarget = prog->NumInstructions;
}
if (emitInfo->EmitHighLevelInstructions) {
@@ -1150,9 +1150,7 @@ emit_if(slang_emit_info *emitInfo, slang_ir_node *n)
}
if (n->Children[2]) {
- struct prog_instruction *elseInst;
- elseInst = prog->Instructions + elseInstLoc;
- elseInst->BranchTarget = prog->NumInstructions;
+ prog->Instructions[elseInstLoc].BranchTarget = prog->NumInstructions;
}
return NULL;
}
@@ -1162,7 +1160,7 @@ static struct prog_instruction *
emit_loop(slang_emit_info *emitInfo, slang_ir_node *n)
{
struct gl_program *prog = emitInfo->prog;
- struct prog_instruction *beginInst, *endInst;
+ struct prog_instruction *endInst;
GLuint beginInstLoc, tailInstLoc, endInstLoc;
slang_ir_node *ir;
@@ -1198,8 +1196,7 @@ emit_loop(slang_emit_info *emitInfo, slang_ir_node *n)
if (emitInfo->EmitHighLevelInstructions) {
/* BGNLOOP's BranchTarget points to the ENDLOOP inst */
- beginInst = prog->Instructions + beginInstLoc;
- beginInst->BranchTarget = prog->NumInstructions - 1;
+ prog->Instructions[beginInstLoc].BranchTarget = prog->NumInstructions -1;
}
/* Done emitting loop code. Now walk over the loop's linked list of
@@ -1213,8 +1210,6 @@ emit_loop(slang_emit_info *emitInfo, slang_ir_node *n)
ir->Opcode == IR_BREAK_IF_FALSE ||
ir->Opcode == IR_BREAK_IF_TRUE) {
assert(inst->Opcode == OPCODE_BRK ||
- inst->Opcode == OPCODE_BRK0 ||
- inst->Opcode == OPCODE_BRK1 ||
inst->Opcode == OPCODE_BRA);
/* go to instruction after end of loop */
inst->BranchTarget = endInstLoc + 1;
@@ -1224,8 +1219,6 @@ emit_loop(slang_emit_info *emitInfo, slang_ir_node *n)
ir->Opcode == IR_CONT_IF_FALSE ||
ir->Opcode == IR_CONT_IF_TRUE);
assert(inst->Opcode == OPCODE_CONT ||
- inst->Opcode == OPCODE_CONT0 ||
- inst->Opcode == OPCODE_CONT1 ||
inst->Opcode == OPCODE_BRA);
/* go to instruction at tail of loop */
inst->BranchTarget = endInstLoc;
@@ -1280,7 +1273,6 @@ static struct prog_instruction *
emit_cont_break_if(slang_emit_info *emitInfo, slang_ir_node *n,
GLboolean breakTrue)
{
- gl_inst_opcode opcode;
struct prog_instruction *inst;
assert(n->Opcode == IR_CONT_IF_TRUE ||
@@ -1300,36 +1292,61 @@ emit_cont_break_if(slang_emit_info *emitInfo, slang_ir_node *n,
/* opcode selection */
if (emitInfo->EmitHighLevelInstructions) {
if (emitInfo->EmitCondCodes) {
- if (n->Opcode == IR_CONT_IF_TRUE ||
- n->Opcode == IR_CONT_IF_FALSE)
- opcode = OPCODE_CONT;
- else
- opcode = OPCODE_BRK;
+ gl_inst_opcode opcode
+ = (n->Opcode == IR_CONT_IF_TRUE || n->Opcode == IR_CONT_IF_FALSE)
+ ? OPCODE_CONT : OPCODE_BRK;
+ inst = new_instruction(emitInfo, opcode);
+ inst->DstReg.CondMask = breakTrue ? COND_NE : COND_EQ;
+ return inst;
}
else {
- if (n->Opcode == IR_CONT_IF_TRUE)
- opcode = OPCODE_CONT1;
- else if (n->Opcode == IR_CONT_IF_FALSE)
- opcode = OPCODE_CONT0;
- else if (n->Opcode == IR_BREAK_IF_TRUE)
- opcode = OPCODE_BRK1;
- else if (n->Opcode == IR_BREAK_IF_FALSE)
- opcode = OPCODE_BRK0;
+ /* IF reg
+ * BRK/CONT;
+ * ENDIF
+ */
+ GLint ifInstLoc;
+ if (n->Opcode == IR_CONT_IF_TRUE ||
+ n->Opcode == IR_BREAK_IF_TRUE) {
+ ifInstLoc = emitInfo->prog->NumInstructions;
+ inst = new_instruction(emitInfo, OPCODE_IF);
+ storage_to_src_reg(&inst->SrcReg[0], n->Children[0]->Store);
+ }
+ else {
+ /* invert the expression */
+ if (!alloc_temp_storage(emitInfo, n, 1))
+ return NULL;
+ inst = new_instruction(emitInfo, OPCODE_SEQ);
+ storage_to_src_reg(&inst->SrcReg[0], n->Children[0]->Store);
+ constant_to_src_reg(&inst->SrcReg[1], 0.0, emitInfo);
+ storage_to_dst_reg(&inst->DstReg, n->Store, n->Writemask);
+ inst->Comment = _mesa_strdup("Invert true/false");
+
+ ifInstLoc = emitInfo->prog->NumInstructions;
+ inst = new_instruction(emitInfo, OPCODE_IF);
+ storage_to_src_reg(&inst->SrcReg[0], n->Store);
+ free_temp_storage(emitInfo->vt, n);
+ }
+ n->InstLocation = emitInfo->prog->NumInstructions;
+ if (n->Opcode == IR_BREAK_IF_TRUE ||
+ n->Opcode == IR_BREAK_IF_FALSE) {
+ inst = new_instruction(emitInfo, OPCODE_BRK);
+ }
+ else {
+ inst = new_instruction(emitInfo, OPCODE_CONT);
+ }
+ inst = new_instruction(emitInfo, OPCODE_ENDIF);
+
+ emitInfo->prog->Instructions[ifInstLoc].BranchTarget
+ = emitInfo->prog->NumInstructions;
+ return inst;
}
}
else {
- opcode = OPCODE_BRA;
- }
-
- inst = new_instruction(emitInfo, opcode);
- if (emitInfo->EmitCondCodes) {
+ assert(emitInfo->EmitCondCodes);
+ inst = new_instruction(emitInfo, OPCODE_BRA);
inst->DstReg.CondMask = breakTrue ? COND_NE : COND_EQ;
+ return inst;
}
- else {
- /* BRK0, BRK1, CONT0, CONT1 uses SrcReg[0] as the condition */
- storage_to_src_reg(&inst->SrcReg[0], n->Children[0]->Store);
- }
- return inst;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-16 11:55:41 +0000