diff options
Diffstat (limited to 'src/mesa/drivers/dri')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_fs_generator.cpp | 18 |
1 files changed, 14 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 05a2db4e5ac..6eebee16ed4 100644 --- a/src/mesa/drivers/dri/i965/brw_fs_generator.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs_generator.cpp @@ -1553,6 +1553,15 @@ fs_generator::enable_debug(const char *shader_name) this->shader_name = shader_name; } +/** + * Some hardware doesn't support SIMD16 instructions with 3 sources. + */ +static bool +brw_supports_simd16_3src(const struct brw_context *brw) +{ + return brw->is_haswell || brw->gen >= 8; +} + int fs_generator::generate_code(const cfg_t *cfg, int dispatch_width) { @@ -1646,7 +1655,7 @@ fs_generator::generate_code(const cfg_t *cfg, int dispatch_width) case BRW_OPCODE_MAD: assert(brw->gen >= 6); brw_set_default_access_mode(p, BRW_ALIGN_16); - if (dispatch_width == 16 && brw->gen < 8 && !brw->is_haswell) { + if (dispatch_width == 16 && !brw_supports_simd16_3src(brw)) { brw_set_default_compression_control(p, BRW_COMPRESSION_NONE); 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); @@ -1667,7 +1676,7 @@ fs_generator::generate_code(const cfg_t *cfg, int dispatch_width) case BRW_OPCODE_LRP: assert(brw->gen >= 6); brw_set_default_access_mode(p, BRW_ALIGN_16); - if (dispatch_width == 16 && brw->gen < 8 && !brw->is_haswell) { + if (dispatch_width == 16 && !brw_supports_simd16_3src(brw)) { brw_set_default_compression_control(p, BRW_COMPRESSION_NONE); 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); @@ -1804,7 +1813,7 @@ fs_generator::generate_code(const cfg_t *cfg, int dispatch_width) case BRW_OPCODE_BFE: assert(brw->gen >= 7); brw_set_default_access_mode(p, BRW_ALIGN_16); - if (dispatch_width == 16 && brw->gen < 8 && !brw->is_haswell) { + if (dispatch_width == 16 && !brw_supports_simd16_3src(brw)) { brw_set_default_compression_control(p, BRW_COMPRESSION_NONE); brw_BFE(p, firsthalf(dst), firsthalf(src[0]), firsthalf(src[1]), firsthalf(src[2])); brw_set_default_compression_control(p, BRW_COMPRESSION_2NDHALF); @@ -1844,7 +1853,8 @@ fs_generator::generate_code(const cfg_t *cfg, int dispatch_width) * Otherwise we would be able to emit compressed instructions like we * do for the other three-source instructions. */ - if (dispatch_width == 16 && brw->gen < 8) { + if (dispatch_width == 16 && + (brw->is_haswell || !brw_supports_simd16_3src(brw))) { brw_set_default_compression_control(p, BRW_COMPRESSION_NONE); brw_BFI2(p, firsthalf(dst), firsthalf(src[0]), firsthalf(src[1]), firsthalf(src[2])); brw_set_default_compression_control(p, BRW_COMPRESSION_2NDHALF); |