diff options
| author | Daniel Schürmann <[email protected]> | 2019-09-26 12:08:13 +0200 |
|---|---|---|
| committer | Daniel Schürmann <[email protected]> | 2019-09-30 09:44:10 +0000 |
| commit | 1d29895e5b8f34fefc280964e65f883f7c491dfe (patch) | |
| tree | 6f79dae54dd81f5ad1020a0b6b7484e03e2a1563 /src/amd/compiler | |
| parent | 0fb27f1e5a1ea35e46352d7ea176d329ac90e3c2 (diff) | |
aco: call nir_opt_algebraic_late() exhaustively
57559 shaders in 28980 tests
Totals:
SGPRS: 2963407 -> 2959935 (-0.12 %)
VGPRS: 2014812 -> 2016328 (0.08 %)
Spilled SGPRs: 1077 -> 1077 (0.00 %)
Spilled VGPRs: 0 -> 0 (0.00 %)
Private memory VGPRs: 0 -> 0 (0.00 %)
Scratch size: 10348 -> 10348 (0.00 %) dwords per thread
Code Size: 114545436 -> 114498084 (-0.04 %) bytes
LDS: 933 -> 933 (0.00 %) blocks
Max Waves: 375997 -> 375866 (-0.03 %)
Reviewed-by: Connor Abbott <[email protected]>
Diffstat (limited to 'src/amd/compiler')
| -rw-r--r-- | src/amd/compiler/aco_instruction_selection_setup.cpp | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/src/amd/compiler/aco_instruction_selection_setup.cpp b/src/amd/compiler/aco_instruction_selection_setup.cpp index a1b2e4a7e57..a32ada0613e 100644 --- a/src/amd/compiler/aco_instruction_selection_setup.cpp +++ b/src/amd/compiler/aco_instruction_selection_setup.cpp @@ -1324,13 +1324,24 @@ setup_isel_context(Program* program, nir_copy_prop(nir); nir_opt_constant_folding(nir); nir_opt_algebraic(nir); - nir_opt_algebraic_late(nir); - nir_opt_constant_folding(nir); + + /* Do late algebraic optimization to turn add(a, neg(b)) back into + * subs, then the mandatory cleanup after algebraic. Note that it may + * produce fnegs, and if so then we need to keep running to squash + * fneg(fneg(a)). + */ + bool more_late_algebraic = true; + while (more_late_algebraic) { + more_late_algebraic = false; + NIR_PASS(more_late_algebraic, nir, nir_opt_algebraic_late); + NIR_PASS_V(nir, nir_opt_constant_folding); + NIR_PASS_V(nir, nir_copy_prop); + NIR_PASS_V(nir, nir_opt_dce); + NIR_PASS_V(nir, nir_opt_cse); + } /* cleanup passes */ nir_lower_load_const_to_scalar(nir); - nir_opt_cse(nir); - nir_opt_dce(nir); nir_opt_shrink_load(nir); nir_move_options move_opts = (nir_move_options)( nir_move_const_undef | nir_move_load_ubo | nir_move_load_input | nir_move_comparisons); |