Fangrui Song 27650ec554 Revert D81682 "[PGO] Extend the value profile buckets for mem op sizes." ... This reverts commit 4a539faf74. 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> ```		2020-07-22 16:08:25 -07:00
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InstrProfData.inc	Revert D81682 "[PGO] Extend the value profile buckets for mem op sizes."	2020-07-22 16:08:25 -07:00