diff options
| author | Jason Ekstrand <[email protected]> | 2015-08-15 09:50:11 -0700 |
|---|---|---|
| committer | Jason Ekstrand <[email protected]> | 2015-08-18 17:48:47 -0700 |
| commit | c3b21f2d56d77c8c11115bf110a5e25e9dd7e3d5 (patch) | |
| tree | f743b48918059ccd38da875b592e051d0a53d095 /src/mesa/drivers/dri/i965/brw_vec4_reg_allocate.cpp | |
| parent | 9b49284c223b284295675775d4344f066b4455db (diff) | |
i965/reg_allocate: Use make_reg_conflicts_transitive
Instead of adding transitive conflicts as we go, we now add regular
conflicts and them make them all transitive at the end. This reduces
screen creation time substantially on BDW. The time spent in eglInitialize
is reduced from 27.78 ms/call to 9.92 ms/call in debug mode and from 13.15
ms/call to 4.54 ms/call in release mode (about 65% in either case).
Reviewed-by: Eric Anholt <[email protected]>
Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_vec4_reg_allocate.cpp')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_vec4_reg_allocate.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_vec4_reg_allocate.cpp b/src/mesa/drivers/dri/i965/brw_vec4_reg_allocate.cpp index 617c9889cad..d7b6ad5fa0c 100644 --- a/src/mesa/drivers/dri/i965/brw_vec4_reg_allocate.cpp +++ b/src/mesa/drivers/dri/i965/brw_vec4_reg_allocate.cpp @@ -140,7 +140,7 @@ brw_vec4_alloc_reg_set(struct brw_compiler *compiler) for (int base_reg = j; base_reg < j + class_sizes[i]; base_reg++) { - ra_add_transitive_reg_conflict(compiler->vec4_reg_set.regs, base_reg, reg); + ra_add_reg_conflict(compiler->vec4_reg_set.regs, base_reg, reg); } reg++; @@ -158,6 +158,9 @@ brw_vec4_alloc_reg_set(struct brw_compiler *compiler) } assert(reg == ra_reg_count); + for (int reg = 0; reg < base_reg_count; reg++) + ra_make_reg_conflicts_transitive(compiler->vec4_reg_set.regs, reg); + ra_set_finalize(compiler->vec4_reg_set.regs, q_values); for (int i = 0; i < MAX_VGRF_SIZE; i++) |