diff options
Diffstat (limited to 'src/mesa/drivers')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_vec4.cpp | 5 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_vec4_live_variables.cpp | 50 |
2 files changed, 41 insertions, 14 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_vec4.cpp b/src/mesa/drivers/dri/i965/brw_vec4.cpp index d07e8c558c2..135cc425dca 100644 --- a/src/mesa/drivers/dri/i965/brw_vec4.cpp +++ b/src/mesa/drivers/dri/i965/brw_vec4.cpp @@ -888,7 +888,10 @@ vec4_visitor::opt_register_coalesce() /* Can't coalesce this GRF if someone else was going to * read it later. */ - if (this->virtual_grf_end[inst->src[0].reg] > ip) + if (this->virtual_grf_end[inst->src[0].reg * 4 + 0] > ip || + this->virtual_grf_end[inst->src[0].reg * 4 + 1] > ip || + this->virtual_grf_end[inst->src[0].reg * 4 + 2] > ip || + this->virtual_grf_end[inst->src[0].reg * 4 + 3] > ip) continue; /* We need to check interference with the final destination between this diff --git a/src/mesa/drivers/dri/i965/brw_vec4_live_variables.cpp b/src/mesa/drivers/dri/i965/brw_vec4_live_variables.cpp index 51b9a82ac55..cdbffc9ff39 100644 --- a/src/mesa/drivers/dri/i965/brw_vec4_live_variables.cpp +++ b/src/mesa/drivers/dri/i965/brw_vec4_live_variables.cpp @@ -203,14 +203,14 @@ vec4_visitor::calculate_live_intervals() if (this->live_intervals_valid) return; - int *start = ralloc_array(mem_ctx, int, this->virtual_grf_count); - int *end = ralloc_array(mem_ctx, int, this->virtual_grf_count); + int *start = ralloc_array(mem_ctx, int, this->virtual_grf_count * 4); + int *end = ralloc_array(mem_ctx, int, this->virtual_grf_count * 4); ralloc_free(this->virtual_grf_start); ralloc_free(this->virtual_grf_end); this->virtual_grf_start = start; this->virtual_grf_end = end; - for (int i = 0; i < this->virtual_grf_count; i++) { + for (int i = 0; i < this->virtual_grf_count * 4; i++) { start[i] = MAX_INSTRUCTION; end[i] = -1; } @@ -226,16 +226,24 @@ vec4_visitor::calculate_live_intervals() if (inst->src[i].file == GRF) { int reg = inst->src[i].reg; - start[reg] = MIN2(start[reg], ip); - end[reg] = ip; + for (int j = 0; j < 4; j++) { + int c = BRW_GET_SWZ(inst->src[i].swizzle, j); + + start[reg * 4 + c] = MIN2(start[reg * 4 + c], ip); + end[reg * 4 + c] = ip; + } } } if (inst->dst.file == GRF) { int reg = inst->dst.reg; - start[reg] = MIN2(start[reg], ip); - end[reg] = ip; + for (int c = 0; c < 4; c++) { + if (inst->dst.writemask & (1 << c)) { + start[reg * 4 + c] = MIN2(start[reg * 4 + c], ip); + end[reg * 4 + c] = ip; + } + } } ip++; @@ -252,13 +260,13 @@ vec4_visitor::calculate_live_intervals() for (int b = 0; b < cfg.num_blocks; b++) { for (int i = 0; i < livevars.num_vars; i++) { if (BITSET_TEST(livevars.bd[b].livein, i)) { - start[i / 4] = MIN2(start[i / 4], cfg.blocks[b]->start_ip); - end[i / 4] = MAX2(end[i / 4], cfg.blocks[b]->start_ip); + start[i] = MIN2(start[i], cfg.blocks[b]->start_ip); + end[i] = MAX2(end[i], cfg.blocks[b]->start_ip); } if (BITSET_TEST(livevars.bd[b].liveout, i)) { - start[i / 4] = MIN2(start[i / 4], cfg.blocks[b]->end_ip); - end[i / 4] = MAX2(end[i / 4], cfg.blocks[b]->end_ip); + start[i] = MIN2(start[i], cfg.blocks[b]->end_ip); + end[i] = MAX2(end[i], cfg.blocks[b]->end_ip); } } } @@ -275,6 +283,22 @@ vec4_visitor::invalidate_live_intervals() bool vec4_visitor::virtual_grf_interferes(int a, int b) { - return !(virtual_grf_end[a] <= virtual_grf_start[b] || - virtual_grf_end[b] <= virtual_grf_start[a]); + int start_a = MIN2(MIN2(virtual_grf_start[a * 4 + 0], + virtual_grf_start[a * 4 + 1]), + MIN2(virtual_grf_start[a * 4 + 2], + virtual_grf_start[a * 4 + 3])); + int start_b = MIN2(MIN2(virtual_grf_start[b * 4 + 0], + virtual_grf_start[b * 4 + 1]), + MIN2(virtual_grf_start[b * 4 + 2], + virtual_grf_start[b * 4 + 3])); + int end_a = MAX2(MAX2(virtual_grf_end[a * 4 + 0], + virtual_grf_end[a * 4 + 1]), + MAX2(virtual_grf_end[a * 4 + 2], + virtual_grf_end[a * 4 + 3])); + int end_b = MAX2(MAX2(virtual_grf_end[b * 4 + 0], + virtual_grf_end[b * 4 + 1]), + MAX2(virtual_grf_end[b * 4 + 2], + virtual_grf_end[b * 4 + 3])); + return !(end_a <= start_b || + end_b <= start_a); } |