diff options
| author | Matt Turner <mattst88@gmail.com> | 2014-12-30 12:56:13 -0800 |
|---|---|---|
| committer | Matt Turner <mattst88@gmail.com> | 2015-01-23 17:57:40 -0800 |
| commit | 7452f18b226e2f5949729c1ed5c2f87c6dae89c0 (patch) | |
| tree | 1f81ca7d80377b2ee32a2db3d86bb66cd0bf3860 | |
| parent | eed7223243c35bba092dc0b26e592f6af1ba3fd7 (diff) | |
i965/fs: Apply conditional mod specially to split MAD/LRP.
Otherwise we'll apply the conditional mod to only one of SIMD8
instructions and trigger an assertion.
NoDDClr/NoDDChk have the same problem but we never apply those to these
instructions, so I'm leaving them for a later time.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_fs_generator.cpp | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs_generator.cpp b/src/mesa/drivers/dri/i965/brw_fs_generator.cpp index 447490218d..77d4908a45 100644 --- a/src/mesa/drivers/dri/i965/brw_fs_generator.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs_generator.cpp @@ -1580,6 +1580,7 @@ fs_generator::generate_code(const cfg_t *cfg, int dispatch_width) foreach_block_and_inst (block, fs_inst, inst, cfg) { struct brw_reg src[3], dst; unsigned int last_insn_offset = p->next_insn_offset; + bool multiple_instructions_emitted = false; if (unlikely(debug_flag)) annotate(brw, &annotation, cfg, inst, p->next_insn_offset); @@ -1653,10 +1654,16 @@ fs_generator::generate_code(const cfg_t *cfg, int dispatch_width) brw_set_default_access_mode(p, BRW_ALIGN_16); if (dispatch_width == 16 && brw->gen < 8 && !brw->is_haswell) { brw_set_default_compression_control(p, BRW_COMPRESSION_NONE); - brw_MAD(p, firsthalf(dst), firsthalf(src[0]), firsthalf(src[1]), firsthalf(src[2])); + brw_inst *f = brw_MAD(p, firsthalf(dst), firsthalf(src[0]), firsthalf(src[1]), firsthalf(src[2])); brw_set_default_compression_control(p, BRW_COMPRESSION_2NDHALF); - brw_MAD(p, sechalf(dst), sechalf(src[0]), sechalf(src[1]), sechalf(src[2])); + brw_inst *s = brw_MAD(p, sechalf(dst), sechalf(src[0]), sechalf(src[1]), sechalf(src[2])); brw_set_default_compression_control(p, BRW_COMPRESSION_COMPRESSED); + + if (inst->conditional_mod) { + brw_inst_set_cond_modifier(brw, f, inst->conditional_mod); + brw_inst_set_cond_modifier(brw, s, inst->conditional_mod); + multiple_instructions_emitted = true; + } } else { brw_MAD(p, dst, src[0], src[1], src[2]); } @@ -1668,10 +1675,16 @@ fs_generator::generate_code(const cfg_t *cfg, int dispatch_width) brw_set_default_access_mode(p, BRW_ALIGN_16); if (dispatch_width == 16 && brw->gen < 8 && !brw->is_haswell) { brw_set_default_compression_control(p, BRW_COMPRESSION_NONE); - brw_LRP(p, firsthalf(dst), firsthalf(src[0]), firsthalf(src[1]), firsthalf(src[2])); + brw_inst *f = brw_LRP(p, firsthalf(dst), firsthalf(src[0]), firsthalf(src[1]), firsthalf(src[2])); brw_set_default_compression_control(p, BRW_COMPRESSION_2NDHALF); - brw_LRP(p, sechalf(dst), sechalf(src[0]), sechalf(src[1]), sechalf(src[2])); + brw_inst *s = brw_LRP(p, sechalf(dst), sechalf(src[0]), sechalf(src[1]), sechalf(src[2])); brw_set_default_compression_control(p, BRW_COMPRESSION_COMPRESSED); + + if (inst->conditional_mod) { + brw_inst_set_cond_modifier(brw, f, inst->conditional_mod); + brw_inst_set_cond_modifier(brw, s, inst->conditional_mod); + multiple_instructions_emitted = true; + } } else { brw_LRP(p, dst, src[0], src[1], src[2]); } @@ -2045,6 +2058,9 @@ fs_generator::generate_code(const cfg_t *cfg, int dispatch_width) unreachable("Should be lowered by lower_load_payload()"); } + if (multiple_instructions_emitted) + continue; + if (inst->no_dd_clear || inst->no_dd_check || inst->conditional_mod) { assert(p->next_insn_offset == last_insn_offset + 16 || !"conditional_mod, no_dd_check, or no_dd_clear set for IR " |