diff options
| author | Eric Anholt <[email protected]> | 2015-08-18 22:07:47 -0700 |
|---|---|---|
| committer | Eric Anholt <[email protected]> | 2015-08-20 23:43:04 -0700 |
| commit | c800fef2e2c65f7d81215cb316de6f73b15ba6c5 (patch) | |
| tree | c30eb0086f3a8d5aa59187af927d690ff8448099 /src/gallium | |
| parent | 8b36d107fdd6f6b91556fcdc3498df16803d4181 (diff) | |
vc4: Allow unpack_8[abcd]_f's src to stay in r4.
I had QPU emit code to do it, but forgot to flag the register class.
total instructions in shared programs: 97974 -> 97590 (-0.39%)
instructions in affected programs: 25291 -> 24907 (-1.52%)
Diffstat (limited to 'src/gallium')
| -rw-r--r-- | src/gallium/drivers/vc4/vc4_register_allocate.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/src/gallium/drivers/vc4/vc4_register_allocate.c b/src/gallium/drivers/vc4/vc4_register_allocate.c index 58d812bce8a..93013147d49 100644 --- a/src/gallium/drivers/vc4/vc4_register_allocate.c +++ b/src/gallium/drivers/vc4/vc4_register_allocate.c @@ -279,7 +279,21 @@ vc4_register_allocate(struct vc4_context *vc4, struct vc4_compile *c) } if (qir_src_needs_a_file(inst)) { - class_bits[inst->src[0].index] &= CLASS_BIT_A; + switch (inst->op) { + case QOP_UNPACK_8A_F: + case QOP_UNPACK_8B_F: + case QOP_UNPACK_8C_F: + case QOP_UNPACK_8D_F: + /* Special case: these can be done as R4 + * unpacks, as well. + */ + class_bits[inst->src[0].index] &= (CLASS_BIT_A | + CLASS_BIT_R4); + break; + default: + class_bits[inst->src[0].index] &= CLASS_BIT_A; + break; + } } ip++; } |