diff options
| author | Eric Anholt <[email protected]> | 2016-03-10 12:53:57 -0800 |
|---|---|---|
| committer | Eric Anholt <[email protected]> | 2016-07-12 17:41:59 -0700 |
| commit | 89918c1e74e454af119e7ae23f3ed66fc26abc4b (patch) | |
| tree | 478573a747b23657f6c597e90930be5b3d54da9b /src/gallium/drivers/vc4/vc4_qir.c | |
| parent | f2eb8e30529780ef7f69f8f5a74707feaa96834c (diff) | |
vc4: Implement live intervals using a CFG.
Right now our CFG is always a trivial single basic block, but that will
change when enable loops.
Diffstat (limited to 'src/gallium/drivers/vc4/vc4_qir.c')
| -rw-r--r-- | src/gallium/drivers/vc4/vc4_qir.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/src/gallium/drivers/vc4/vc4_qir.c b/src/gallium/drivers/vc4/vc4_qir.c index c23b3326f82..3f59fceede9 100644 --- a/src/gallium/drivers/vc4/vc4_qir.c +++ b/src/gallium/drivers/vc4/vc4_qir.c @@ -224,6 +224,53 @@ qir_writes_r4(struct qinst *inst) } } +uint8_t +qir_channels_written(struct qinst *inst) +{ + if (qir_is_mul(inst)) { + switch (inst->dst.pack) { + case QPU_PACK_MUL_NOP: + case QPU_PACK_MUL_8888: + return 0xf; + case QPU_PACK_MUL_8A: + return 0x1; + case QPU_PACK_MUL_8B: + return 0x2; + case QPU_PACK_MUL_8C: + return 0x4; + case QPU_PACK_MUL_8D: + return 0x8; + } + } else { + switch (inst->dst.pack) { + case QPU_PACK_A_NOP: + case QPU_PACK_A_8888: + case QPU_PACK_A_8888_SAT: + case QPU_PACK_A_32_SAT: + return 0xf; + case QPU_PACK_A_8A: + case QPU_PACK_A_8A_SAT: + return 0x1; + case QPU_PACK_A_8B: + case QPU_PACK_A_8B_SAT: + return 0x2; + case QPU_PACK_A_8C: + case QPU_PACK_A_8C_SAT: + return 0x4; + case QPU_PACK_A_8D: + case QPU_PACK_A_8D_SAT: + return 0x8; + case QPU_PACK_A_16A: + case QPU_PACK_A_16A_SAT: + return 0x3; + case QPU_PACK_A_16B: + case QPU_PACK_A_16B_SAT: + return 0xc; + } + } + unreachable("Bad pack field"); +} + static void qir_print_reg(struct vc4_compile *c, struct qreg reg, bool write) { |