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| author | Teresa Johnson <tejohnson@google.com> | 2023-04-19 08:21:52 -0700 |
|---|---|---|
| committer | Teresa Johnson <tejohnson@google.com> | 2023-04-19 13:33:46 -0700 |
| commit | a35206d78280e0ebcf48cd21bc5fff5c3b9c73fa (patch) | |
| tree | e128be8e1d26a72fe3accdbcbd6957e3f785ebb1 /llvm/lib/Analysis/MemoryBuiltins.cpp | |
| parent | 24214832fd433a901c2296088bf23b7bc86c6a96 (diff) | |
| download | llvm-a35206d78280e0ebcf48cd21bc5fff5c3b9c73fa.zip llvm-a35206d78280e0ebcf48cd21bc5fff5c3b9c73fa.tar.gz llvm-a35206d78280e0ebcf48cd21bc5fff5c3b9c73fa.tar.bz2 | |
[MemProf] Optionally pass hot/cold hints to operator new
Optionally (off by default) replace operator new() calls marked with a
hot or cold memprof attribute with an operator new() call that takes a
hot_cold_t parameter.
Currently this is supported by the open source version of tcmalloc, see:
https://github.com/google/tcmalloc/blob/master/tcmalloc/new_extension.h
Differential Revision: https://reviews.llvm.org/D148718
Diffstat (limited to 'llvm/lib/Analysis/MemoryBuiltins.cpp')
| -rw-r--r-- | llvm/lib/Analysis/MemoryBuiltins.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/llvm/lib/Analysis/MemoryBuiltins.cpp b/llvm/lib/Analysis/MemoryBuiltins.cpp index 4d818bb..116a922 100644 --- a/llvm/lib/Analysis/MemoryBuiltins.cpp +++ b/llvm/lib/Analysis/MemoryBuiltins.cpp @@ -115,17 +115,25 @@ static const std::pair<LibFunc, AllocFnsTy> AllocationFnData[] = { {LibFunc_ZnwjSt11align_val_t, {OpNewLike, 2, 0, -1, 1, MallocFamily::CPPNewAligned}}, // new(unsigned int, align_val_t) {LibFunc_ZnwjSt11align_val_tRKSt9nothrow_t, {MallocLike, 3, 0, -1, 1, MallocFamily::CPPNewAligned}}, // new(unsigned int, align_val_t, nothrow) {LibFunc_Znwm, {OpNewLike, 1, 0, -1, -1, MallocFamily::CPPNew}}, // new(unsigned long) + {LibFunc_Znwm10hot_cold_t, {OpNewLike, 2, 0, -1, -1, MallocFamily::CPPNew}}, // new(unsigned long, hot_cold_t) {LibFunc_ZnwmRKSt9nothrow_t, {MallocLike, 2, 0, -1, -1, MallocFamily::CPPNew}}, // new(unsigned long, nothrow) + {LibFunc_ZnwmRKSt9nothrow_t10hot_cold_t, {MallocLike, 3, 0, -1, -1, MallocFamily::CPPNew}}, // new(unsigned long, nothrow, hot_cold_t) {LibFunc_ZnwmSt11align_val_t, {OpNewLike, 2, 0, -1, 1, MallocFamily::CPPNewAligned}}, // new(unsigned long, align_val_t) + {LibFunc_ZnwmSt11align_val_t10hot_cold_t, {OpNewLike, 3, 0, -1, 1, MallocFamily::CPPNewAligned}}, // new(unsigned long, align_val_t, hot_cold_t) {LibFunc_ZnwmSt11align_val_tRKSt9nothrow_t, {MallocLike, 3, 0, -1, 1, MallocFamily::CPPNewAligned}}, // new(unsigned long, align_val_t, nothrow) + {LibFunc_ZnwmSt11align_val_tRKSt9nothrow_t10hot_cold_t, {MallocLike, 4, 0, -1, 1, MallocFamily::CPPNewAligned}}, // new(unsigned long, align_val_t, nothrow, hot_cold_t) {LibFunc_Znaj, {OpNewLike, 1, 0, -1, -1, MallocFamily::CPPNewArray}}, // new[](unsigned int) {LibFunc_ZnajRKSt9nothrow_t, {MallocLike, 2, 0, -1, -1, MallocFamily::CPPNewArray}}, // new[](unsigned int, nothrow) {LibFunc_ZnajSt11align_val_t, {OpNewLike, 2, 0, -1, 1, MallocFamily::CPPNewArrayAligned}}, // new[](unsigned int, align_val_t) {LibFunc_ZnajSt11align_val_tRKSt9nothrow_t, {MallocLike, 3, 0, -1, 1, MallocFamily::CPPNewArrayAligned}}, // new[](unsigned int, align_val_t, nothrow) {LibFunc_Znam, {OpNewLike, 1, 0, -1, -1, MallocFamily::CPPNewArray}}, // new[](unsigned long) + {LibFunc_Znam10hot_cold_t, {OpNewLike, 2, 0, -1, -1, MallocFamily::CPPNew}}, // new[](unsigned long, hot_cold_t) {LibFunc_ZnamRKSt9nothrow_t, {MallocLike, 2, 0, -1, -1, MallocFamily::CPPNewArray}}, // new[](unsigned long, nothrow) + {LibFunc_ZnamRKSt9nothrow_t10hot_cold_t, {MallocLike, 3, 0, -1, -1, MallocFamily::CPPNew}}, // new[](unsigned long, nothrow, hot_cold_t) {LibFunc_ZnamSt11align_val_t, {OpNewLike, 2, 0, -1, 1, MallocFamily::CPPNewArrayAligned}}, // new[](unsigned long, align_val_t) + {LibFunc_ZnamSt11align_val_t10hot_cold_t, {OpNewLike, 3, 0, -1, 1, MallocFamily::CPPNewAligned}}, // new[](unsigned long, align_val_t, hot_cold_t) {LibFunc_ZnamSt11align_val_tRKSt9nothrow_t, {MallocLike, 3, 0, -1, 1, MallocFamily::CPPNewArrayAligned}}, // new[](unsigned long, align_val_t, nothrow) + {LibFunc_ZnamSt11align_val_tRKSt9nothrow_t10hot_cold_t, {MallocLike, 4, 0, -1, 1, MallocFamily::CPPNewAligned}}, // new[](unsigned long, align_val_t, nothrow, hot_cold_t) {LibFunc_msvc_new_int, {OpNewLike, 1, 0, -1, -1, MallocFamily::MSVCNew}}, // new(unsigned int) {LibFunc_msvc_new_int_nothrow, {MallocLike, 2, 0, -1, -1, MallocFamily::MSVCNew}}, // new(unsigned int, nothrow) {LibFunc_msvc_new_longlong, {OpNewLike, 1, 0, -1, -1, MallocFamily::MSVCNew}}, // new(unsigned long long) |