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llvm-project/compiler-rt
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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
..
cmake Revert "Try enabling -Wsuggest-override again, using add_compile_options instead of add_compile_definitions for disabling it in unittests/ directories." 2020-07-22 15:07:01 -07:00
docs
…
include Revert D81682 "[PGO] Extend the value profile buckets for mem op sizes." 2020-07-22 16:08:25 -07:00
lib Revert D81682 "[PGO] Extend the value profile buckets for mem op sizes." 2020-07-22 16:08:25 -07:00
test [Sanitizers] Add interceptor for xdrrec_create 2020-07-22 17:29:41 +00:00
tools Add GWP-ASan fuzz target to compiler-rt/tools. 2019-08-27 18:28:07 +00:00
unittests [Scudo] [GWP-ASan] Add GWP-ASan to Scudo Standalone. 2019-12-13 09:09:41 -08:00
utils [compiler-rt] Fix build on NetBSD 9.99.44 2020-01-31 14:57:20 +01:00
www [www] Change URLs to HTTPS. 2019-10-24 13:25:15 -07:00
.gitignore
…
CMakeLists.txt [CMake] Bump CMake minimum version to 3.13.4 2020-07-22 14:25:07 -04:00
CODE_OWNERS.TXT
…
CREDITS.TXT
…
LICENSE.TXT Fix typos throughout the license files that somehow I and my reviewers 2019-01-21 09:52:34 +00:00
README.txt
…

README.txt 

Compiler-RT
================================

This directory and its subdirectories contain source code for the compiler
support routines.

Compiler-RT is open source software. You may freely distribute it under the
terms of the license agreement found in LICENSE.txt.

================================