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pan/bi: Scalarize modifier propagation

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Reduces memory footprint.

Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16585>
This commit is contained in:
Alyssa Rosenzweig 2022-05-11 12:24:31 -04:00 • committed by Marge Bot
parent e332e2edc1
commit c6349278f9
1 changed files with 7 additions and 7 deletions
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14
src/panfrost/bifrost/bi_opt_mod_props.c
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@ -155,17 +155,17 @@ bi_fuse_discard_fcmp(bi_instr *I, bi_instr *mod, unsigned arch)
void
bi_opt_mod_prop_forward(bi_context *ctx)
{
bi_instr **lut = calloc(sizeof(bi_instr *), ((ctx->ssa_alloc + 1) << 2));
bi_instr **lut = calloc(sizeof(bi_instr *), ctx->ssa_alloc);
bi_foreach_instr_global_safe(ctx, I) {
if (bi_is_ssa(I->dest[0]))
lut[bi_word_node(I->dest[0])] = I;
lut[I->dest[0].value] = I;
bi_foreach_src(I, s) {
if (!bi_is_ssa(I->src[s]))
continue;
bi_instr *mod = lut[bi_word_node(I->src[s])];
bi_instr *mod = lut[I->src[s].value];
if (!mod)
continue;
@ -263,14 +263,14 @@ bi_optimizer_var_tex(bi_context *ctx, bi_instr *var, bi_instr *tex)
void
bi_opt_mod_prop_backward(bi_context *ctx)
{
unsigned count = ((ctx->ssa_alloc + 1) << 2);
unsigned count = ctx->ssa_alloc;
bi_instr **uses = calloc(count, sizeof(*uses));
BITSET_WORD *multiple = calloc(BITSET_WORDS(count), sizeof(*multiple));
bi_foreach_instr_global_rev(ctx, I) {
bi_foreach_src(I, s) {
if (bi_is_ssa(I->src[s])) {
unsigned v = bi_word_node(I->src[s]);
unsigned v = I->src[s].value;
if (uses[v] && uses[v] != I)
BITSET_SET(multiple, v);
@ -282,9 +282,9 @@ bi_opt_mod_prop_backward(bi_context *ctx)
if (!bi_is_ssa(I->dest[0]))
continue;
bi_instr *use = uses[bi_word_node(I->dest[0])];
bi_instr *use = uses[I->dest[0].value];
if (!use || BITSET_TEST(multiple, bi_word_node(I->dest[0])))
if (!use || BITSET_TEST(multiple, I->dest[0].value))
continue;
/* Destination has a single use, try to propagate */