diff options
| author | Rob Clark <[email protected]> | 2015-03-29 11:24:57 -0400 |
|---|---|---|
| committer | Rob Clark <[email protected]> | 2015-04-05 16:36:34 -0400 |
| commit | f370e95421f553ace931a02743c96be80fd62dc8 (patch) | |
| tree | eedcee138a10be5616b80f5883d421523aa92025 /src/gallium/drivers/freedreno/ir3/ir3.h | |
| parent | 104713d9f2dced94a427004a25c54b2c7feee166 (diff) | |
freedreno/ir3: handle const/immed/abs/neg in cp
Be smarter about propagating copies from const or immed, or with abs/neg
modifiers. Also, realize that absneg.s and absneg.f are really "fancy"
mov instructions.
This opens up the possibility to remove more copies. It helps the TGSI
frontend a bit, but will be really needed for the NIR f/e which builds
everything up in SSA form (ie. will *always* insert a mov from const or
immediate).
Signed-off-by: Rob Clark <[email protected]>
Diffstat (limited to 'src/gallium/drivers/freedreno/ir3/ir3.h')
| -rw-r--r-- | src/gallium/drivers/freedreno/ir3/ir3.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/gallium/drivers/freedreno/ir3/ir3.h b/src/gallium/drivers/freedreno/ir3/ir3.h index 8310286102e..f424f73bec3 100644 --- a/src/gallium/drivers/freedreno/ir3/ir3.h +++ b/src/gallium/drivers/freedreno/ir3/ir3.h @@ -525,6 +525,12 @@ static inline struct ir3_instruction *ssa(struct ir3_register *reg) return NULL; } +static inline bool conflicts(struct ir3_instruction *a, + struct ir3_instruction *b) +{ + return (a && b) && (a != b); +} + static inline bool reg_gpr(struct ir3_register *r) { if (r->flags & (IR3_REG_CONST | IR3_REG_IMMED | IR3_REG_ADDR)) |