diff options
| author | Connor Abbott <cwabbott0@gmail.com> | 2023-03-15 17:25:36 +0100 |
|---|---|---|
| committer | Marge Bot <emma+marge@anholt.net> | 2024-04-26 12:55:13 +0000 |
| commit | 0f62203edf3ec0ab6729bd69cf814b0e4480b0e8 (patch) | |
| tree | 3ce03ee8277acd55fe15d37ea9921b1d98b667ee | |
| parent | ef75ea18cd352e4bee17c46069babe5ca3390641 (diff) | |
ir3/cp: Support swapping mad srcs for shared regs
This was missed when adding shared reg constraints, and helps with
eliminating extra moves caused by uniform (but not const) mad sources.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22075>
| -rw-r--r-- | src/freedreno/ir3/ir3_cp.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/freedreno/ir3/ir3_cp.c b/src/freedreno/ir3/ir3_cp.c index 8f3133e18e1..33e9bd1139b 100644 --- a/src/freedreno/ir3/ir3_cp.c +++ b/src/freedreno/ir3/ir3_cp.c @@ -280,7 +280,7 @@ try_swap_mad_two_srcs(struct ir3_instruction *instr, unsigned new_flags) /* If the reason we couldn't fold without swapping is something * other than const source, then swapping won't help: */ - if (!(new_flags & IR3_REG_CONST)) + if (!(new_flags & (IR3_REG_CONST | IR3_REG_SHARED))) return false; instr->cat3.swapped = true; @@ -339,6 +339,8 @@ reg_cp(struct ir3_cp_ctx *ctx, struct ir3_instruction *instr, reg->def->instr->use_count++; return true; + } else if (n == 1 && try_swap_mad_two_srcs(instr, new_flags)) { + return true; } } else if ((is_same_type_mov(src) || is_const_mov(src)) && /* cannot collapse const/immed/etc into control flow: */ |