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better uniform lane range distribution when count / lanes is not cleanly divisible; plug in source file path gathering

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This commit is contained in:
Ryan Fleury
2025-08-18 12:01:55 -07:00
parent d52b6d7bca
commit 34cb8ded2c
2 changed files with 17 additions and 16 deletions
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src/base/base_thread_context.c
+7 -4
View File
@@ -92,11 +92,14 @@ tctx_lane_barrier_wait(void)
internal Rng1U64
tctx_lane_idx_range_from_count(U64 count)
{
U64 idxes_per_lane = (count + lane_count()-1) / lane_count();
U64 lane_base_idx = lane_idx()*idxes_per_lane;
U64 lane_opl_idx = lane_base_idx + idxes_per_lane;
U64 main_idxes_per_lane = count/lane_count();
U64 leftover_idxes_count = count - main_idxes_per_lane*lane_count();
U64 leftover_idxes_before_this_lane_count = Min(lane_idx(), leftover_idxes_count);
U64 lane_base_idx = lane_idx()*main_idxes_per_lane + leftover_idxes_before_this_lane_count;
U64 lane_base_idx__clamped = Min(lane_base_idx, count);
U64 lane_opl_idx = lane_base_idx__clamped + main_idxes_per_lane + ((lane_idx() < leftover_idxes_count) ? 1 : 0);
U64 lane_opl_idx__clamped = Min(lane_opl_idx, count);
Rng1U64 result = r1u64(lane_base_idx, lane_opl_idx__clamped);
Rng1U64 result = r1u64(lane_base_idx__clamped, lane_opl_idx__clamped);
return result;
}
src/rdi_from_pdb/rdi_from_pdb_2.c
+10 -12
View File
@@ -45,7 +45,7 @@ p2r2_convert_thread_entry_point(void *p)
{
ProfScope("parse PDB info")
{
String8 info_data = msf_data_from_stream(p2r2_shared->msf, PDB_FixedStream_Info);
String8 info_data = msf_data_from_stream(msf, PDB_FixedStream_Info);
p2r2_shared->pdb_info = pdb_info_from_data(arena, info_data);
if(p2r2_shared->pdb_info->features & PDB_FeatureFlag_MINIMAL_DBG_INFO)
{
@@ -325,7 +325,6 @@ p2r2_convert_thread_entry_point(void *p)
lane_sync();
//- rjf: do wide gather
#if 0
{
Rng1U64 range = lane_range(comp_units->count);
for EachInRange(idx, range)
@@ -417,7 +416,7 @@ p2r2_convert_thread_entry_point(void *p)
U64 sym_off_opl = rec_range->off + rec_range->hdr.size;
//- rjf: skip invalid ranges
if(sym_off_opl > pdb_unit_sym->data.size || sym_off_first > pdb_unit_sym->data.size || sym_off_first > sym_off_opl)
if(sym_off_opl > unit_sym->data.size || sym_off_first > unit_sym->data.size || sym_off_first > sym_off_opl)
{
continue;
}
@@ -425,8 +424,8 @@ p2r2_convert_thread_entry_point(void *p)
//- rjf: unpack symbol info
CV_SymKind kind = rec_range->hdr.kind;
U64 sym_header_struct_size = cv_header_struct_size_from_sym_kind(kind);
void *sym_header_struct_base = pdb_unit_sym->data.str + sym_off_first;
void *sym_data_opl = pdb_unit_sym->data.str + sym_off_opl;
void *sym_header_struct_base = unit_sym->data.str + sym_off_first;
void *sym_data_opl = unit_sym->data.str + sym_off_opl;
//- rjf: skip bad sizes
if(sym_off_first + sym_header_struct_size > sym_off_opl)
@@ -444,7 +443,7 @@ p2r2_convert_thread_entry_point(void *p)
case CV_SymKind_GPROC32:
{
CV_SymProc32 *proc32 = (CV_SymProc32 *)sym_header_struct_base;
COFF_SectionHeader *section = (0 < proc32->sec && proc32->sec <= in->coff_sections.count) ? &in->coff_sections.v[proc32->sec-1] : 0;
COFF_SectionHeader *section = (0 < proc32->sec && proc32->sec <= coff_sections.count) ? &coff_sections.v[proc32->sec-1] : 0;
if(section != 0)
{
base_voff = section->voff + proc32->off;
@@ -462,8 +461,8 @@ p2r2_convert_thread_entry_point(void *p)
CV_C13InlineeLinesParsed *inlinee_lines_parsed = 0;
{
U64 hash = cv_hash_from_item_id(sym->inlinee);
U64 slot_idx = hash%pdb_unit_c13->inlinee_lines_parsed_slots_count;
for(CV_C13InlineeLinesParsedNode *n = pdb_unit_c13->inlinee_lines_parsed_slots[slot_idx]; n != 0; n = n->hash_next)
U64 slot_idx = hash%unit_c13->inlinee_lines_parsed_slots_count;
for(CV_C13InlineeLinesParsedNode *n = unit_c13->inlinee_lines_parsed_slots[slot_idx]; n != 0; n = n->hash_next)
{
if(n->v.inlinee == sym->inlinee)
{
@@ -477,7 +476,7 @@ p2r2_convert_thread_entry_point(void *p)
if(inlinee_lines_parsed != 0)
{
// rjf: grab checksums sub-section
CV_C13SubSectionNode *file_chksms = pdb_unit_c13->file_chksms_sub_section;
CV_C13SubSectionNode *file_chksms = unit_c13->file_chksms_sub_section;
// rjf: gathered lines
U32 last_file_off = max_U32;
@@ -505,9 +504,9 @@ p2r2_convert_thread_entry_point(void *p)
String8 seq_file_name = {0};
if(last_file_off + sizeof(CV_C13Checksum) <= file_chksms->size)
{
CV_C13Checksum *checksum = (CV_C13Checksum*)(pdb_unit_c13->data.str + file_chksms->off + last_file_off);
CV_C13Checksum *checksum = (CV_C13Checksum*)(unit_c13->data.str + file_chksms->off + last_file_off);
U32 name_off = checksum->name_off;
seq_file_name = pdb_strtbl_string_from_off(in->pdb_strtbl, name_off);
seq_file_name = pdb_strtbl_string_from_off(strtbl, name_off);
}
// rjf: file name -> normalized file path
@@ -572,7 +571,6 @@ p2r2_convert_thread_entry_point(void *p)
p2r2_shared->unit_src_file_paths[idx] = str8_array_from_list(arena, &src_file_paths);
}
}
#endif
#if 0 // TODO(rjf): OLD
U64 tasks_count = comp_unit_count;