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| author | Fangrui Song <maskray@google.com> | 2020-07-22 16:08:06 -0700 |
|---|---|---|
| committer | Fangrui Song <maskray@google.com> | 2020-07-22 16:08:25 -0700 |
| commit | 27650ec5541cd604a5027ad63895e0badfd35efe (patch) | |
| tree | 24c761725748954f3ea70c411df248ee251521fe /llvm/lib/Bitcode/Reader/BitcodeAnalyzer.cpp | |
| parent | 5f110273954ac152c9690b6cdf2a2e46f8908f0a (diff) | |
Revert D81682 "[PGO] Extend the value profile buckets for mem op sizes."
This reverts commit 4a539faf74b9b4c25ee3b880e4007564bd5139b0.
There is a __llvm_profile_instrument_range related crash in PGO-instrumented clang:
```
(gdb) bt
llvm::ConstantRange const&, llvm::APInt const&, unsigned int, bool) ()
llvm::ScalarEvolution::getRangeForAffineAR(llvm::SCEV const*, llvm::SCEV
const*, llvm::SCEV const*, unsigned int) ()
```
(The body of __llvm_profile_instrument_range is inlined, so we can only find__llvm_profile_instrument_target in the trace)
```
23│ 0x000055555dba0961 <+65>: nopw %cs:0x0(%rax,%rax,1)
24│ 0x000055555dba096b <+75>: nopl 0x0(%rax,%rax,1)
25│ 0x000055555dba0970 <+80>: mov %rsi,%rbx
26│ 0x000055555dba0973 <+83>: mov 0x8(%rsi),%rsi # %rsi=-1 -> SIGSEGV
27│ 0x000055555dba0977 <+87>: cmp %r15,(%rbx)
28│ 0x000055555dba097a <+90>: je 0x55555dba0a76 <__llvm_profile_instrument_target+342>
```
Diffstat (limited to 'llvm/lib/Bitcode/Reader/BitcodeAnalyzer.cpp')
0 files changed, 0 insertions, 0 deletions