diff options
| author | Rob Clark <[email protected]> | 2016-04-05 12:39:47 -0400 |
|---|---|---|
| committer | Rob Clark <[email protected]> | 2016-04-05 15:04:25 -0400 |
| commit | f9cdbf44054009122fcc16c887fb90ccc33b52c9 (patch) | |
| tree | 592fcae6b07a4a68f22ef6ddee239f0d9c2aceec /src/gallium/drivers/freedreno/ir3/ir3.h | |
| parent | 0daab9878d2b96356cf667591a2c877d912be52d (diff) | |
freedreno/ir3: eliminate unnecessary absneg's
The frontend inserts (abs) and (neg)'s to convert between NIR boolean
(~0/0) and native boolean (1/0). So we'd end up with things like:
cmps.s.ge r1.x, ...
absneg.s r1.x, (neg)r1.x
absneg.s r1.x, (abs)r1.x
sel.b32 r2.x, r0.x, r1.x, r0.y
The (neg) already gets collapsed due to the following (abs). Now by
realizing that r1.x comes from a cmps.s instruction, we can drop the
(abs) as well.
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 | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/gallium/drivers/freedreno/ir3/ir3.h b/src/gallium/drivers/freedreno/ir3/ir3.h index 23e43b1e13d..3859f6a39f3 100644 --- a/src/gallium/drivers/freedreno/ir3/ir3.h +++ b/src/gallium/drivers/freedreno/ir3/ir3.h @@ -628,6 +628,18 @@ static inline bool is_input(struct ir3_instruction *instr) } } +static inline bool is_bool(struct ir3_instruction *instr) +{ + switch (instr->opc) { + case OPC_CMPS_F: + case OPC_CMPS_S: + case OPC_CMPS_U: + return true; + default: + return false; + } +} + static inline bool is_meta(struct ir3_instruction *instr) { /* TODO how should we count PHI (and maybe fan-in/out) which |