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Andrea Di Biagio 1e6d0aad7e [llvm-mca] Introduce a new base class for mca::Instruction, and change how read/write information is stored. 
This patch introduces a new base class for Instruction named InstructionBase.
Class InstructionBase is responsible for tracking data dependencies with the
help of ReadState and WriteState objects.  Class Instruction now derives from
InstructionBase, and adds extra information related to the `InstrStage` as well
as the `RCUTokenID`.

ReadState and WriteState objects are no longer unique pointers. This avoids
extra heap allocation and pointer checks that weren't really needed.  Now, those
objects are simply stored into SmallVectors.  We use a SmallVector instead of a
std::vector because we expect most instructions to only have a very small number
of reads and writes.  By using a simple SmallVector we also avoid extra heap
allocations most of the time.
In a debug build, this improves the performance of llvm-mca by roughly 10% (I
still have to verify the impact in performance on a release build).

llvm-svn: 345280
 		2018-10-25 17:03:51 +00:00
..
bugpoint [TI removal] Make `getTerminator()` return a generic `Instruction`. 2018-10-15 10:42:50 +00:00
bugpoint-passes Remove redundant includes from tools. 2017-12-13 21:31:10 +00:00
dsymutil [dsymutil] Improve error reporting when we cannot create output file. 2018-10-23 00:32:22 +00:00
gold [gold] -thinlto-object-suffix-replace: don't append new suffix if path does not end with old suffix 2018-08-22 02:11:36 +00:00
llc [llc] Fix sanitizer failure. 2018-06-23 19:04:10 +00:00
lli [ORC] Re-apply r345077 with fixes to remove ambiguity in lookup calls. 2018-10-23 23:01:39 +00:00
llvm-ar [llvm-ar] Use POSIX-specified timestamps for 'tv'. 2018-10-05 23:25:39 +00:00
llvm-as [ThinLTO] Parse module summary index from assembly 2018-06-26 13:56:49 +00:00
llvm-as-fuzzer make add_llvm_fuzzer calls slightly more consisten with other cmake 2018-05-11 17:58:52 +00:00
llvm-bcanalyzer Fix some missing opcodes in bcanalyzer 2018-09-24 12:47:17 +00:00
llvm-c-test Emit template type and value parameter DIEs for template variables. 2018-10-03 18:44:53 +00:00
llvm-cat Pass a reference to a module to the bitcode writer. 2018-02-14 19:11:32 +00:00
llvm-cfi-verify Revert r342148 (and follow-on fix attempts r342154, r342180, r342182, r342193) 2018-09-15 19:04:27 +00:00
llvm-config llvm::sort(C.begin(), C.end(), ...) -> llvm::sort(C, ...) 2018-09-27 02:13:45 +00:00
llvm-cov [Support] Listing a directory containing dangling symlinks is not an error. 2018-10-01 12:17:05 +00:00
llvm-cvtres [opt] Change the parameter of OptTable::PrintHelp from Name to Usage and don't append "[options] <inputs>" 2018-10-10 00:15:31 +00:00
llvm-cxxdump Fixing a typo; NFC. 2018-07-23 18:09:43 +00:00
llvm-cxxfilt Define InitLLVM to do common initialization all at once. 2018-04-13 18:26:06 +00:00
llvm-cxxmap Add flag to llvm-profdata to allow symbols in profile data to be remapped, and 2018-09-13 20:22:02 +00:00
llvm-demangle-fuzzer make add_llvm_fuzzer calls slightly more consisten with other cmake 2018-05-11 17:58:52 +00:00
llvm-diff [TI removal] Make `getTerminator()` return a generic `Instruction`. 2018-10-15 10:42:50 +00:00
llvm-dis [ThinLTO] Print module summary index to assembly 2018-05-26 02:34:13 +00:00
llvm-dwarfdump Make llvm-dwarfdump -name work on type units. 2018-10-24 21:51:55 +00:00
llvm-dwp Reland rL341509: "[llvm-dwp] Use buffer_stream if output file is not seekable (e.g. "-")" 2018-09-06 20:26:54 +00:00
llvm-exegesis Fix MSVC llvm-exegesis build. NFCI. 2018-10-25 10:45:38 +00:00
llvm-extract Define InitLLVM to do common initialization all at once. 2018-04-13 18:26:06 +00:00
llvm-go [bindings/go] Add coroutine passes 2018-08-19 23:40:05 +00:00
llvm-isel-fuzzer CodeGen: Add a dwo output file argument to addPassesToEmitFile and hook it up to dwo output. 2018-05-21 20:16:41 +00:00
llvm-jitlistener Define InitLLVM to do common initialization all at once. 2018-04-13 18:26:06 +00:00
llvm-link Restore "[ThinLTO] Ensure we always select the same function copy to import" 2018-07-16 15:30:27 +00:00
llvm-lto [ThinLTO]Expose cache entry expiration time option in llvm-lto and fix a test 2018-10-03 13:00:20 +00:00
llvm-lto2 [LTO] Call InitLLVM from llvm-lto2 2018-10-16 17:37:45 +00:00
llvm-mc [MC] Separate masm integer literal lexer support from inline asm 2018-10-24 20:23:57 +00:00
llvm-mc-assemble-fuzzer [llvm-mc-assemble-fuzzer] Update API - Pass MCObjectWriter instead of a stream 2018-08-17 04:38:41 +00:00
llvm-mc-disassemble-fuzzer make add_llvm_fuzzer calls slightly more consisten with other cmake 2018-05-11 17:58:52 +00:00
llvm-mca [llvm-mca] Introduce a new base class for mca::Instruction, and change how read/write information is stored. 2018-10-25 17:03:51 +00:00
llvm-modextract Pass a reference to a module to the bitcode writer. 2018-02-14 19:11:32 +00:00
llvm-mt [opt] Change the parameter of OptTable::PrintHelp from Name to Usage and don't append "[options] <inputs>" 2018-10-10 00:15:31 +00:00
llvm-nm [llvm-nm] Fix crash when running with --print-armap on corrupt archives. 2018-10-11 17:55:11 +00:00
llvm-objcopy [llvm-objcopy] Introduce dispatch mechanism based on the input 2018-10-24 22:49:06 +00:00
llvm-objdump [llvm-objdump] Fix --file-headers (-f) option 2018-10-19 22:16:49 +00:00
llvm-opt-fuzzer [NewPM] teach -passes= to emit meaningful error messages 2018-10-17 10:36:23 +00:00
llvm-opt-report Reland: [OptRemarks] Add library for parsing optimization remarks 2018-10-10 18:43:42 +00:00
llvm-pdbutil [llvm-pdbutil] Pretty print PDBSymbolUsingNamespace symbols 2018-10-11 21:37:18 +00:00
llvm-profdata Add flag to llvm-profdata to allow symbols in profile data to be remapped, and 2018-09-13 20:22:02 +00:00
llvm-rc [opt] Change the parameter of OptTable::PrintHelp from Name to Usage and don't append "[options] <inputs>" 2018-10-10 00:15:31 +00:00
llvm-readobj [llvm-readobj] Print ELF header flags names in GNU output 2018-10-25 05:39:27 +00:00
llvm-rtdyld [RuntimeDyld][COFF] Skip non-loaded sections when calculating ImageBase. 2018-10-23 01:36:33 +00:00
llvm-shlib Support of hurd in llvm-shlib 2018-10-18 20:07:44 +00:00
llvm-size [llvm-size] Berkeley formatting: use tabs instead of spaces as field delimeters. 2018-09-21 23:48:12 +00:00
llvm-special-case-list-fuzzer make add_llvm_fuzzer calls slightly more consisten with other cmake 2018-05-11 17:58:52 +00:00
llvm-split Pass a reference to a module to the bitcode writer. 2018-02-14 19:11:32 +00:00
llvm-stress [Support] Rename tool_output_file to ToolOutputFile, NFC 2017-09-23 01:03:17 +00:00
llvm-strings Fix llvm-strings crash for negative char values 2018-10-24 13:16:16 +00:00
llvm-symbolizer [llvm-symbolizer] Simplify 2018-05-26 02:29:14 +00:00
llvm-undname [llvm-undname Add an option to dump back references. 2018-08-01 18:33:04 +00:00
llvm-xray llvm::sort(C.begin(), C.end(), ...) -> llvm::sort(C, ...) 2018-09-27 02:13:45 +00:00
llvm-yaml-numeric-parser-fuzzer Use LLVM_BUILTIN_TRAP not __builtin_trap to appease windows builds. NFCI. 2018-08-20 09:49:20 +00:00
lto [libLTO] Expose LLVMCreateDisasmCPUFeatures from libLTO 2018-09-26 16:47:35 +00:00
msbuild Update Visual Studio Integration version number. 2018-08-29 16:57:37 +00:00
obj2yaml [WebAssembly] Refactor WasmSignature and use it for MCSymbolWasm 2018-10-03 22:22:48 +00:00
opt [NewPM] teach -passes= to emit meaningful error messages 2018-10-17 10:36:23 +00:00
opt-viewer [opt-viewer] Kill parser processes before moving onto rendering 2018-02-26 21:15:51 +00:00
sancov [sancov] Generalize the code to get the previous instruction to multiple architectures 2018-10-10 00:57:24 +00:00
sanstats Fix broken links to the Itanium CXX ABI 2017-09-12 00:19:11 +00:00
verify-uselistorder Rename DEBUG macro to LLVM_DEBUG. 2018-05-14 12:53:11 +00:00
xcode-toolchain [CMake] Use LLVM_ENABLE_IDE instead of CMAKE_CONFIGURATION_TYPES 2018-10-15 21:20:02 +00:00
yaml2obj llvm::sort(C.begin(), C.end(), ...) -> llvm::sort(C, ...) 2018-09-27 02:13:45 +00:00
CMakeLists.txt [RFC] Build LLVM-C.dll on MSVC that exports only the C API 2018-08-07 15:54:50 +00:00
LLVMBuild.txt Add a Microsoft Demangler. 2018-07-20 17:27:48 +00:00