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Reid Kleckner e6a81b9bec [pdb] Add -type-stats and sort stats by descending size 
Summary:
It prints this on chromium browser_tests.exe.pdb:

  Types
           Total: 5647475 entries ( 371,897,512 bytes,   65.85 avg)
  --------------------------------------------------------------------------
        LF_CLASS:  397894 entries ( 119,537,780 bytes,  300.43 avg)
    LF_STRUCTURE:  236351 entries (  83,208,084 bytes,  352.05 avg)
    LF_FIELDLIST:  291003 entries (  66,087,920 bytes,  227.10 avg)
    LF_MFUNCTION: 1884176 entries (  52,756,928 bytes,   28.00 avg)
      LF_POINTER: 1149030 entries (  13,877,344 bytes,   12.08 avg)
      LF_ARGLIST:  789980 entries (  12,436,752 bytes,   15.74 avg)
   LF_METHODLIST:  361498 entries (   8,351,008 bytes,   23.10 avg)
         LF_ENUM:   16069 entries (   6,108,340 bytes,  380.13 avg)
    LF_PROCEDURE:  269374 entries (   4,309,984 bytes,   16.00 avg)
     LF_MODIFIER:  235602 entries (   2,827,224 bytes,   12.00 avg)
        LF_UNION:    9131 entries (   2,072,168 bytes,  226.94 avg)
      LF_VFTABLE:     323 entries (     207,784 bytes,  643.29 avg)
        LF_ARRAY:    6639 entries (     106,380 bytes,   16.02 avg)
      LF_VTSHAPE:     126 entries (       6,472 bytes,   51.37 avg)
     LF_BITFIELD:     278 entries (       3,336 bytes,   12.00 avg)
        LF_LABEL:       1 entries (           8 bytes,    8.00 avg)

The PDB is overall 1.9GB, so the LF_CLASS and LF_STRUCTURE declarations
account for about 10% of the overall file size. I was surprised to find
that on average LF_FIELDLIST records are short. Maybe this is because
there are many more types with short member lists than there are
instantiations with lots of members, like std::vector.

Reviewers: aganea, zturner

Subscribers: llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D59672

llvm-svn: 356813
 		2019-03-22 21:22:13 +00:00
..
bugpoint [opaque pointer types] Pass value type to LoadInst creation. 2019-02-01 20:44:24 +00:00
bugpoint-passes Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
dsymutil Revert "[DWARFFormValue] Cleanup DWARFFormValue interface. (2/2) (NFC)" 2019-03-02 01:10:00 +00:00
gold Reland "[Remarks] Add -foptimization-record-passes to filter remark emission" 2019-03-12 21:22:27 +00:00
llc Reland "[Remarks] Add -foptimization-record-passes to filter remark emission" 2019-03-12 21:22:27 +00:00
lli [opaque pointer types] Add a FunctionCallee wrapper type, and use it. 2019-02-01 02:28:03 +00:00
llvm-ar [llvm-ar] Support N [count] modifier 2019-03-19 16:09:54 +00:00
llvm-as Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
llvm-as-fuzzer Fix some include order and file headers issues. NFC 2019-02-21 07:42:31 +00:00
llvm-bcanalyzer Implementation of asm-goto support in LLVM 2019-02-08 20:48:56 +00:00
llvm-c-test [LLVM-C] Add Bindings to GlobalIFunc 2019-02-05 18:05:44 +00:00
llvm-cat Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
llvm-cfi-verify [DebugInfo] add SectionedAddress to DebugInfo interfaces. 2019-02-27 13:17:36 +00:00
llvm-config llvm-config: Include -stdlib= in --cxxflags 2019-02-28 17:31:59 +00:00
llvm-cov Speeding up llvm-cov export with multithreaded renderFiles implementation. 2019-03-14 17:49:27 +00:00
llvm-cvtres Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
llvm-cxxdump Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
llvm-cxxfilt [llvm-cxxfilt] Re-enable split and demangle stdin input on certain non-alphanumerics. 2019-02-27 21:39:11 +00:00
llvm-cxxmap Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
llvm-diff Fix some include order and file headers issues. NFC 2019-02-21 07:42:31 +00:00
llvm-dis Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
llvm-dwarfdump llvm-dwarfdump: Add new variable, parameter and inlining statistics; also function source location statistics. 2019-03-01 23:51:54 +00:00
llvm-dwp [llvm-dwp] Use color-formatted error reporting 2019-02-12 20:37:33 +00:00
llvm-elfabi Fix some include order and file headers issues. NFC 2019-02-21 07:42:31 +00:00
llvm-exegesis [llvm-exegesis] Separate tool options into three categories. 2019-03-18 11:32:37 +00:00
llvm-extract Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
llvm-go Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
llvm-isel-fuzzer Fix file header issues in fuzzers. NFC 2019-02-21 07:57:14 +00:00
llvm-itanium-demangle-fuzzer Fix file header issues in fuzzers. NFC 2019-02-21 07:57:14 +00:00
llvm-jitlistener Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
llvm-link Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
llvm-lto Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
llvm-lto2 Reland "[Remarks] Add -foptimization-record-passes to filter remark emission" 2019-03-12 21:22:27 +00:00
llvm-mc [DWARF] Make -g with empty assembler source work better. 2019-03-01 20:58:04 +00:00
llvm-mc-assemble-fuzzer Fix some include order and file headers issues. NFC 2019-02-21 07:42:31 +00:00
llvm-mc-disassemble-fuzzer Fix file header issues in fuzzers. NFC 2019-02-21 07:57:14 +00:00
llvm-mca [llvm-mca] Emit a message when no bottlenecks are identified. 2019-03-07 19:34:44 +00:00
llvm-microsoft-demangle-fuzzer Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
llvm-modextract Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
llvm-mt Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
llvm-nm Improve "llvm-nm -f sysv" output for Elf files 2019-03-08 22:00:50 +00:00
llvm-objcopy Revert r356738 "[llvm-objcopy] - Implement replaceSectionReferences for GroupSection class." 2019-03-22 12:14:04 +00:00
llvm-objdump [llvm-objdump] Support arg grouping for -j and -M (e.g. llvm-objdump -sj.foo -dMreg-names-raw) 2019-03-21 18:45:44 +00:00
llvm-opt-fuzzer Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
llvm-opt-report Reland "[Remarks] Add a new Remark / RemarkParser abstraction" 2019-03-19 21:11:07 +00:00
llvm-pdbutil [pdb] Add -type-stats and sort stats by descending size 2019-03-22 21:22:13 +00:00
llvm-profdata [llvm-profdata] Deleted unused Cutoffs added by D16005 2019-03-15 10:43:51 +00:00
llvm-rc Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
llvm-readobj [llvm-readobj] Revert bad changes 2019-03-22 16:20:54 +00:00
llvm-rtdyld [DebugInfo] add SectionedAddress to DebugInfo interfaces. 2019-02-27 13:17:36 +00:00
llvm-shlib Use response file when generating LLVM-C.dll 2019-03-19 09:14:09 +00:00
llvm-size Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
llvm-special-case-list-fuzzer Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
llvm-split Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
llvm-stress Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
llvm-strings Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
llvm-symbolizer Attempt to fix buildbot after r354972 [#2]. NFCI. 2019-03-01 10:15:18 +00:00
llvm-undname Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
llvm-xray [DebugInfo] add SectionedAddress to DebugInfo interfaces. 2019-02-27 13:17:36 +00:00
llvm-yaml-numeric-parser-fuzzer Fix file header issues in fuzzers. NFC 2019-02-21 07:57:14 +00:00
lto Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
msbuild Fix typos throughout the license files that somehow I and my reviewers 2019-01-21 09:52:34 +00:00
obj2yaml [WebAssembly] Target features section 2019-03-20 20:26:45 +00:00
opt Reland "[Remarks] Add -foptimization-record-passes to filter remark emission" 2019-03-12 21:22:27 +00:00
opt-viewer [opt-viewer] Add --filter option to select remarks for displaying. 2019-02-06 18:43:37 +00:00
remarks-shlib Reland "[Remarks] Add a new Remark / RemarkParser abstraction" 2019-03-19 21:11:07 +00:00
sancov [DebugInfo] add SectionedAddress to DebugInfo interfaces. 2019-02-27 13:17:36 +00:00
sanstats [DebugInfo] add SectionedAddress to DebugInfo interfaces. 2019-02-27 13:17:36 +00:00
verify-uselistorder Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
xcode-toolchain [CMake] Use LLVM_ENABLE_IDE instead of CMAKE_CONFIGURATION_TYPES 2018-10-15 21:20:02 +00:00
yaml2obj [ObjectYAML] Add basic minidump generation support 2019-03-22 14:47:26 +00:00
CMakeLists.txt Fix most of LLVM's tests with LLVM_ENABLE_PIC=OFF 2019-01-16 20:44:36 +00:00
LLVMBuild.txt Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00