diff options
| -rw-r--r-- | src/intel/compiler/brw_fs.cpp | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/src/intel/compiler/brw_fs.cpp b/src/intel/compiler/brw_fs.cpp index 3fc7ae48943..086b1a04855 100644 --- a/src/intel/compiler/brw_fs.cpp +++ b/src/intel/compiler/brw_fs.cpp @@ -4529,11 +4529,16 @@ get_fpu_lowered_simd_width(const struct gen_device_info *devinfo, */ if (devinfo->gen < 8) { for (unsigned i = 0; i < inst->sources; i++) { + /* IVB implements DF scalars as <0;2,1> regions. */ + const bool is_scalar_exception = is_uniform(inst->src[i]) && + (devinfo->is_haswell || type_sz(inst->src[i].type) != 8); + const bool is_packed_word_exception = + type_sz(inst->dst.type) == 4 && inst->dst.stride == 1 && + type_sz(inst->src[i].type) == 2 && inst->src[i].stride == 1; + if (inst->size_written > REG_SIZE && inst->size_read(i) != 0 && inst->size_read(i) <= REG_SIZE && - !is_uniform(inst->src[i]) && - !(type_sz(inst->dst.type) == 4 && inst->dst.stride == 1 && - type_sz(inst->src[i].type) == 2 && inst->src[i].stride == 1)) { + !is_scalar_exception && !is_packed_word_exception) { const unsigned reg_count = DIV_ROUND_UP(inst->size_written, REG_SIZE); max_width = MIN2(max_width, inst->exec_size / reg_count); } |