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freedreno/ir3: add ir3_cp_ctx

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Needed in next commit.. just split out to reduce noise.

Signed-off-by: Rob Clark <robclark@freedesktop.org>
This commit is contained in:
Rob Clark 2016-04-11 14:33:01 -04:00
parent b9985e5bde
commit b15c7fc268
3 changed files with 22 additions and 12 deletions
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3
src/gallium/drivers/freedreno/ir3/ir3.h
View file

@ -910,7 +910,8 @@ void ir3_insert_by_depth(struct ir3_instruction *instr, struct list_head *list);
void ir3_depth(struct ir3 *ir);
/* copy-propagate: */
void ir3_cp(struct ir3 *ir);
struct ir3_shader_variant;
void ir3_cp(struct ir3 *ir, struct ir3_shader_variant *so);
/* group neighbors and insert mov's to resolve conflicts: */
void ir3_group(struct ir3 *ir);

2
src/gallium/drivers/freedreno/ir3/ir3_compiler_nir.c
View file

@ -2419,7 +2419,7 @@ ir3_compile_shader_nir(struct ir3_compiler *compiler,
ir3_print(ir);
}
ir3_cp(ir);
ir3_cp(ir, so);
if (fd_mesa_debug & FD_DBG_OPTMSGS) {
printf("BEFORE GROUPING:\n");

29
src/gallium/drivers/freedreno/ir3/ir3_cp.c
View file

@ -34,6 +34,10 @@
* Copy Propagate:
*/
struct ir3_cp_ctx {
struct ir3_shader_variant *so;
};
/* is it a type preserving mov, with ok flags? */
static bool is_eligible_mov(struct ir3_instruction *instr, bool allow_flags)
{
@ -237,7 +241,8 @@ static void combine_flags(unsigned *dstflags, struct ir3_instruction *src)
* instruction).
*/
static void
reg_cp(struct ir3_instruction *instr, struct ir3_register *reg, unsigned n)
reg_cp(struct ir3_cp_ctx *ctx, struct ir3_instruction *instr,
struct ir3_register *reg, unsigned n)
{
struct ir3_instruction *src = ssa(reg);
@ -404,7 +409,7 @@ eliminate_output_mov(struct ir3_instruction *instr)
* the mov dst with the mov src
*/
static void
instr_cp(struct ir3_instruction *instr)
instr_cp(struct ir3_cp_ctx *ctx, struct ir3_instruction *instr)
{
struct ir3_register *reg;
@ -421,7 +426,7 @@ instr_cp(struct ir3_instruction *instr)
if (!src)
continue;
instr_cp(src);
instr_cp(ctx, src);
/* TODO non-indirect access we could figure out which register
* we actually want and allow cp..
@ -429,17 +434,17 @@ instr_cp(struct ir3_instruction *instr)
if (reg->flags & IR3_REG_ARRAY)
continue;
reg_cp(instr, reg, n);
reg_cp(ctx, instr, reg, n);
}
if (instr->regs[0]->flags & IR3_REG_ARRAY) {
struct ir3_instruction *src = ssa(instr->regs[0]);
if (src)
instr_cp(src);
instr_cp(ctx, src);
}
if (instr->address) {
instr_cp(instr->address);
instr_cp(ctx, instr->address);
ir3_instr_set_address(instr, eliminate_output_mov(instr->address));
}
@ -476,25 +481,29 @@ instr_cp(struct ir3_instruction *instr)
}
void
ir3_cp(struct ir3 *ir)
ir3_cp(struct ir3 *ir, struct ir3_shader_variant *so)
{
struct ir3_cp_ctx ctx = {
.so = so,
};
ir3_clear_mark(ir);
for (unsigned i = 0; i < ir->noutputs; i++) {
if (ir->outputs[i]) {
instr_cp(ir->outputs[i]);
instr_cp(&ctx, ir->outputs[i]);
ir->outputs[i] = eliminate_output_mov(ir->outputs[i]);
}
}
for (unsigned i = 0; i < ir->keeps_count; i++) {
instr_cp(ir->keeps[i]);
instr_cp(&ctx, ir->keeps[i]);
ir->keeps[i] = eliminate_output_mov(ir->keeps[i]);
}
list_for_each_entry (struct ir3_block, block, &ir->block_list, node) {
if (block->condition) {
instr_cp(block->condition);
instr_cp(&ctx, block->condition);
block->condition = eliminate_output_mov(block->condition);
}
}