diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/intel/compiler/brw_vec4.cpp | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/intel/compiler/brw_vec4.cpp b/src/intel/compiler/brw_vec4.cpp index 4464a913988..e67d7802550 100644 --- a/src/intel/compiler/brw_vec4.cpp +++ b/src/intel/compiler/brw_vec4.cpp @@ -1285,6 +1285,15 @@ vec4_visitor::opt_register_coalesce() } } + /* VS_OPCODE_UNPACK_FLAGS_SIMD4X2 generates a bunch of mov(1) + * instructions, and this optimization pass is not capable of + * handling that. Bail on these instructions and hope that some + * later optimization pass can do the right thing after they are + * expanded. + */ + if (scan_inst->opcode == VS_OPCODE_UNPACK_FLAGS_SIMD4X2) + break; + /* This doesn't handle saturation on the instruction we * want to coalesce away if the register types do not match. * But if scan_inst is a non type-converting 'mov', we can fix |