diff options
| -rw-r--r-- | src/mesa/state_tracker/st_glsl_to_tgsi.cpp | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp index 55984ff0c78..a865379d703 100644 --- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp +++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp @@ -66,6 +66,49 @@ #define MAX_GLSL_TEXTURE_OFFSET 4 +#ifndef NDEBUG +#include "util/u_atomic.h" +#include "util/simple_mtx.h" +#include <fstream> +#include <ios> + +/* Prepare to make it possible to specify log file */ +static std::ofstream stats_log; + +/* Helper function to check whether we want to write some statistics + * of the shader conversion. + */ + +static simple_mtx_t print_stats_mutex = _SIMPLE_MTX_INITIALIZER_NP; + +static inline bool print_stats_enabled () +{ + static int stats_enabled = 0; + + if (!stats_enabled) { + simple_mtx_lock(&print_stats_mutex); + if (!stats_enabled) { + const char *stats_filename = getenv("GLSL_TO_TGSI_PRINT_STATS"); + if (stats_filename) { + bool write_header = std::ifstream(stats_filename).fail(); + stats_log.open(stats_filename, std::ios_base::out | std::ios_base::app); + stats_enabled = stats_log.good() ? 1 : -1; + if (write_header) + stats_log << "arrays,temps,temps in arrays,total,instructions\n"; + } else { + stats_enabled = -1; + } + } + simple_mtx_unlock(&print_stats_mutex); + } + return stats_enabled > 0; +} +#define PRINT_STATS(X) if (print_stats_enabled()) do { X; } while (false); +#else +#define PRINT_STATS(X) +#endif + + static unsigned is_precise(const ir_variable *ir) { if (!ir) @@ -348,6 +391,8 @@ public: st_dst_reg *l, st_src_reg *r, st_src_reg *cond, bool cond_swap); + void print_stats(); + void *mem_ctx; }; @@ -5491,6 +5536,27 @@ glsl_to_tgsi_visitor::renumber_registers(void) ralloc_free(first_writes); } +#ifndef NDEBUG +void glsl_to_tgsi_visitor::print_stats() +{ + int narray_registers = 0; + for (unsigned i = 0; i < this->next_array; ++i) + narray_registers += this->array_sizes[i]; + + int ninstructions = 0; + foreach_in_list(glsl_to_tgsi_instruction, inst, &instructions) { + ++ninstructions; + } + + simple_mtx_lock(&print_stats_mutex); + stats_log << next_array << ", " + << next_temp << ", " + << narray_registers << ", " + << next_temp + narray_registers << ", " + << ninstructions << "\n"; + simple_mtx_unlock(&print_stats_mutex); +} +#endif /* ------------------------- TGSI conversion stuff -------------------------- */ /** @@ -7004,6 +7070,8 @@ get_mesa_program_tgsi(struct gl_context *ctx, return NULL; } + PRINT_STATS(v->print_stats()); + return prog; } |