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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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24//===-- Struct field access counter runtime -------------------------------===// 24​//===-- Struct field access counter runtime -------------------------------===//
25 25​
26// This should be kept consistent with LLVM's EfficiencySanitizer StructInfo. 26​// This should be kept consistent with LLVM's EfficiencySanitizer StructInfo.
27struct StructInfo { 27​struct StructInfo {
28 const char *StructName; 28​ const char *StructName;
29 u32 Size; 29​ u32 Size;
30 u32 NumFields; 30​ u32 NumFields;
31 u32 *FieldOffsets; 31​ u32 *FieldOffsets;
32​ u32 *FieldSize;
32 u64 *FieldCounters; 33​ u64 *FieldCounters;
33 const char **FieldTypeNames; 34​ const char **FieldTypeNames;
34}; 35​};
35 36​
36// This should be kept consistent with LLVM's EfficiencySanitizer CacheFragInfo. 37​// This should be kept consistent with LLVM's EfficiencySanitizer CacheFragInfo.
37// The tool-specific information per compilation unit (module). 38​// The tool-specific information per compilation unit (module).
38struct CacheFragInfo { 39​struct CacheFragInfo {
39 const char *UnitName; 40​ const char *UnitName;
▲ Show 20 Lines • Show All 49 Lines • ▼ Show 20 Line(s)75static void reportStructCounter(StructHashMap::Handle &Handle) {
89 } 90​ }
90 // Remove the suffixes with '#' during print. 91​ // Remove the suffixes with '#' during print.
91 end = strchr(start, '#'); 92​ end = strchr(start, '#');
92 CHECK(end != nullptr); 93​ CHECK(end != nullptr);
93 Report(" %s %.*s\n", type, end - start, start); 94​ Report(" %s %.*s\n", type, end - start, start);
94 Report(" size = %u, count = %llu, ratio = %llu\n", 95​ Report(" size = %u, count = %llu, ratio = %llu\n",
95 Struct->Size, Handle->Count, Handle->Ratio); 96​ Struct->Size, Handle->Count, Handle->Ratio);
96 for (u32 i = 0; i < Struct->NumFields; ++i) { 97​ for (u32 i = 0; i < Struct->NumFields; ++i) {
97 Report(" #%2u: offset = %u,\t count = %llu,\t type = %s\n", i, 98​ Report(" #%2u: offset = %u,\t size = %u,\t count = %llu,\t type = %s\n", i,
98 Struct->FieldOffsets[i], Struct->FieldCounters[i], 99​ Struct->FieldOffsets[i], Struct->FieldSize[i],
99 Struct->FieldTypeNames[i]); 100​ Struct->FieldCounters[i], Struct->FieldTypeNames[i]);
100 } 101​ }
101} 102​}
102 103​
103static void computeStructRatio(StructHashMap::Handle &Handle) { 104​static void computeStructRatio(StructHashMap::Handle &Handle) {
104 Handle->Ratio = 0; 105​ Handle->Ratio = 0;
105 Handle->Count = Handle->Struct->FieldCounters[0]; 106​ Handle->Count = Handle->Struct->FieldCounters[0];
106 for (u32 i = 1; i < Handle->Struct->NumFields; ++i) { 107​ for (u32 i = 1; i < Handle->Struct->NumFields; ++i) {
107 Handle->Count += Handle->Struct->FieldCounters[i]; 108​ Handle->Count += Handle->Struct->FieldCounters[i];
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