diff options
Diffstat (limited to 'src/intel/compiler')
| -rw-r--r-- | src/intel/compiler/brw_fs.cpp | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/src/intel/compiler/brw_fs.cpp b/src/intel/compiler/brw_fs.cpp index 965eb86f65e..fea5a145a8e 100644 --- a/src/intel/compiler/brw_fs.cpp +++ b/src/intel/compiler/brw_fs.cpp @@ -3487,8 +3487,14 @@ fs_visitor::lower_integer_multiplication() * schedule multi-component multiplications much better. */ + bool needs_mov = false; fs_reg orig_dst = inst->dst; - if (orig_dst.is_null() || orig_dst.file == MRF) { + if (orig_dst.is_null() || orig_dst.file == MRF || + regions_overlap(inst->dst, inst->size_written, + inst->src[0], inst->size_read(0)) || + regions_overlap(inst->dst, inst->size_written, + inst->src[1], inst->size_read(1))) { + needs_mov = true; inst->dst = fs_reg(VGRF, alloc.allocate(dispatch_width / 8), inst->dst.type); } @@ -3519,7 +3525,7 @@ fs_visitor::lower_integer_multiplication() subscript(low, BRW_REGISTER_TYPE_UW, 1), subscript(high, BRW_REGISTER_TYPE_UW, 0)); - if (inst->conditional_mod || orig_dst.file == MRF) { + if (needs_mov || inst->conditional_mod) { set_condmod(inst->conditional_mod, ibld.MOV(orig_dst, inst->dst)); } |