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agx: Split up RA from post-RA lowering 

This allows us to validate results in the middle.

Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16268>
This commit is contained in:
Alyssa Rosenzweig 2022-04-13 21:05:02 -04:00 committed by Alyssa Rosenzweig
parent ea065537cb
commit 860832e41b
1 changed files with 15 additions and 13 deletions
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28
src/asahi/compiler/agx_register_allocate.c
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@ -286,7 +286,21 @@ agx_ra(agx_context *ctx)
agx_ra_assign_local(block, ssa_to_reg, ncomps, ctx->max_register);
}
/* TODO: Coalesce combines */
agx_foreach_instr_global(ctx, ins) {
agx_foreach_src(ins, s) {
if (ins->src[s].type == AGX_INDEX_NORMAL) {
unsigned v = ssa_to_reg[ins->src[s].value];
ins->src[s] = agx_replace_index(ins->src[s], agx_register(v, ins->src[s].size));
}
}
agx_foreach_dest(ins, d) {
if (ins->dest[d].type == AGX_INDEX_NORMAL) {
unsigned v = ssa_to_reg[ins->dest[d].value];
ins->dest[d] = agx_replace_index(ins->dest[d], agx_register(v, ins->dest[d].size));
}
}
}
agx_foreach_instr_global_safe(ctx, ins) {
/* Lower away RA pseudo-instructions */
@ -353,19 +367,7 @@ agx_ra(agx_context *ctx)
continue;
}
agx_foreach_src(ins, s) {
if (ins->src[s].type == AGX_INDEX_NORMAL) {
unsigned v = ssa_to_reg[ins->src[s].value];
ins->src[s] = agx_replace_index(ins->src[s], agx_register(v, ins->src[s].size));
}
}
agx_foreach_dest(ins, d) {
if (ins->dest[d].type == AGX_INDEX_NORMAL) {
unsigned v = ssa_to_reg[ins->dest[d].value];
ins->dest[d] = agx_replace_index(ins->dest[d], agx_register(v, ins->dest[d].size));
}
}
}
/* Insert parallel copies lowering phi nodes */