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Differential D21342 Diff 60743 lib/esan/cache_frag.cpp

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lib/esan/cache_frag.cpp

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//===-- Struct field access counter runtime -------------------------------===// //===-- Struct field access counter runtime -------------------------------===//
// This should be kept consistent with LLVM's EfficiencySanitizer StructInfo. // This should be kept consistent with LLVM's EfficiencySanitizer StructInfo.
struct StructInfo { struct StructInfo {
const char *StructName; const char *StructName;
u32 Size; u32 Size;
u32 NumFields; u32 NumFields;
u32 *FieldOffsets; u32 *FieldOffsets;
u32 *FieldSize;
u64 *FieldCounters; u64 *FieldCounters;
const char **FieldTypeNames; const char **FieldTypeNames;
}; };
// This should be kept consistent with LLVM's EfficiencySanitizer CacheFragInfo. // This should be kept consistent with LLVM's EfficiencySanitizer CacheFragInfo.
// The tool-specific information per compilation unit (module). // The tool-specific information per compilation unit (module).
struct CacheFragInfo { struct CacheFragInfo {
const char *UnitName; const char *UnitName;
▲ Show 20 Lines • Show All 49 Lines • ▼ Show 20 Linesstatic void reportStructCounter(StructHashMap::Handle &Handle) {
} }
// Remove the suffixes with '#' during print. // Remove the suffixes with '#' during print.
end = strchr(start, '#'); end = strchr(start, '#');
CHECK(end != nullptr); CHECK(end != nullptr);
Report(" %s %.*s\n", type, end - start, start); Report(" %s %.*s\n", type, end - start, start);
Report(" size = %u, count = %llu, ratio = %llu\n", Report(" size = %u, count = %llu, ratio = %llu\n",
Struct->Size, Handle->Count, Handle->Ratio); Struct->Size, Handle->Count, Handle->Ratio);
for (u32 i = 0; i < Struct->NumFields; ++i) { for (u32 i = 0; i < Struct->NumFields; ++i) {
Report(" #%2u: offset = %u,\t count = %llu,\t type = %s\n", i, Report(" #%2u: offset = %u,\t size = %u,\t count = %llu,\t type = %s\n", i,
Struct->FieldOffsets[i], Struct->FieldCounters[i], Struct->FieldOffsets[i], Struct->FieldSize[i],
Struct->FieldTypeNames[i]); Struct->FieldCounters[i], Struct->FieldTypeNames[i]);
} }
} }
static void computeStructRatio(StructHashMap::Handle &Handle) { static void computeStructRatio(StructHashMap::Handle &Handle) {
Handle->Ratio = 0; Handle->Ratio = 0;
Handle->Count = Handle->Struct->FieldCounters[0]; Handle->Count = Handle->Struct->FieldCounters[0];
for (u32 i = 1; i < Handle->Struct->NumFields; ++i) { for (u32 i = 1; i < Handle->Struct->NumFields; ++i) {
Handle->Count += Handle->Struct->FieldCounters[i]; Handle->Count += Handle->Struct->FieldCounters[i];
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