Module: Mesa Branch: master Commit: ee06e47c5b1d7e5132435ba4ed7be5a2b16bc77e URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=ee06e47c5b1d7e5132435ba4ed7be5a2b16bc77e
Author: Mark Janes <[email protected]> Date: Fri Aug 7 16:35:32 2020 -0700 intel/fs: Assert if lower_source_modifiers converts 32x16 to 32x32 multiplication Lowering source modifiers will convert a 16bit source to a 32bit value. In the case of integer multiplication, this will reverse previous lowering performed by lower_mul_dword_inst. Assert to prevent an illegal DxD operation (and GPU hang). Reviewed-by: Francisco Jerez <[email protected]> --- src/intel/compiler/brw_fs_lower_regioning.cpp | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/src/intel/compiler/brw_fs_lower_regioning.cpp b/src/intel/compiler/brw_fs_lower_regioning.cpp index 9db2c540afa..8ae52dfef96 100644 --- a/src/intel/compiler/brw_fs_lower_regioning.cpp +++ b/src/intel/compiler/brw_fs_lower_regioning.cpp @@ -256,6 +256,12 @@ namespace brw { lower_src_modifiers(fs_visitor *v, bblock_t *block, fs_inst *inst, unsigned i) { assert(inst->components_read(i) == 1); + assert(v->devinfo->has_integer_dword_mul || + inst->opcode != BRW_OPCODE_MUL || + brw_reg_type_is_floating_point(get_exec_type(inst)) || + MIN2(type_sz(inst->src[0].type), type_sz(inst->src[1].type)) >= 4 || + type_sz(inst->src[i].type) == get_exec_type_size(inst)); + const fs_builder ibld(v, block, inst); const fs_reg tmp = ibld.vgrf(get_exec_type(inst)); _______________________________________________ mesa-commit mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/mesa-commit
