fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-02-21 16:30:29 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions 4

ir3/spill: Mark reload destination as early-clobber

Browse source 
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14107>
This commit is contained in:
Connor Abbott 2022-03-10 11:24:44 +01:00 • committed by Marge Bot
parent 2ff5826f09
commit 72b32d83fb
1 changed files with 8 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
src/freedreno/ir3/ir3_spill.c
View file

@ -905,6 +905,14 @@ reload(struct ra_spill_ctx *ctx, struct ir3_register *reg,
ir3_instr_create(block, OPC_RELOAD_MACRO, 1, 3);
struct ir3_register *dst = __ssa_dst(reload);
dst->flags |= reg->flags & (IR3_REG_HALF | IR3_REG_ARRAY);
/* The reload may be split into multiple pieces, and if the destination
* overlaps with the base register then it could get clobbered before the
* last ldp in the sequence. Note that we always reserve space for the base
* register throughout the whole program, so effectively extending its live
* range past the end of the instruction isn't a problem for our pressure
* accounting.
*/
dst->flags |= IR3_REG_EARLY_CLOBBER;
ir3_src_create(reload, INVALID_REG, ctx->base_reg->flags)->def = ctx->base_reg;
struct ir3_register *offset_reg =
ir3_src_create(reload, INVALID_REG, IR3_REG_IMMED);