diff options
Diffstat (limited to 'src/mesa/drivers')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_fs_dead_code_eliminate.cpp | 4 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_vec4_dead_code_eliminate.cpp | 4 |
2 files changed, 8 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs_dead_code_eliminate.cpp b/src/mesa/drivers/dri/i965/brw_fs_dead_code_eliminate.cpp index a50cf6f24f1..6b4b60224b7 100644 --- a/src/mesa/drivers/dri/i965/brw_fs_dead_code_eliminate.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs_dead_code_eliminate.cpp @@ -109,6 +109,10 @@ fs_visitor::dead_code_eliminate() BITSET_CLEAR(flag_live, inst->flag_subreg); } + /* Don't mark dead instructions' sources as live */ + if (inst->opcode == BRW_OPCODE_NOP) + continue; + for (int i = 0; i < inst->sources; i++) { if (inst->src[i].file == VGRF) { int var = live_intervals->var_from_reg(inst->src[i]); diff --git a/src/mesa/drivers/dri/i965/brw_vec4_dead_code_eliminate.cpp b/src/mesa/drivers/dri/i965/brw_vec4_dead_code_eliminate.cpp index 58aed810fcd..369941bb71e 100644 --- a/src/mesa/drivers/dri/i965/brw_vec4_dead_code_eliminate.cpp +++ b/src/mesa/drivers/dri/i965/brw_vec4_dead_code_eliminate.cpp @@ -150,6 +150,10 @@ vec4_visitor::dead_code_eliminate() BITSET_CLEAR(flag_live, c); } + /* Don't mark dead instructions' sources as live */ + if (inst->opcode == BRW_OPCODE_NOP) + continue; + for (int i = 0; i < 3; i++) { if (inst->src[i].file == VGRF) { for (unsigned j = 0; j < inst->regs_read(i); j++) { |