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James Molloy 6ccd673206 [DFAPacketizer] Allow namespacing of automata per-itinerary 
The Hexagon itineraries are cunningly crafted such that functional units between
itineraries do not clash. Because all itineraries are bundled into the same DFA,
a functional unit index clash would cause an incorrect DFA to be generated.

A workaround for this is to ensure all itineraries declare the universe of all
possible functional units, but this isn't ideal for three reasons:
  1) We only have a limited number of FUs we can encode in the packetizer, and
     using the universe causes us to hit the limit without care.
  2) Silent codegen faults are bad, and careful triage of the FU list shouldn't
     be required.
  3) Smooshing all itineraries into the same automaton allows combinations of
     instruction classes that cannot exist, which bloats the table.

A simple solution is to allow "namespacing" packetizers.

Differential Revision: https://reviews.llvm.org/D66940

llvm-svn: 370508
 		2019-08-30 19:50:49 +00:00
clang [clang-scan-deps] NFC, remove outdated implementation comment 2019-08-30 17:34:22 +00:00
clang-tools-extra [clangd] Add highlighting for macro expansions. 2019-08-30 15:47:27 +00:00
compiler-rt [cmake] enable x86 libfuzzer on Windows 2019-08-29 17:47:43 +00:00
debuginfo-tests Make nrvo-string test more robust. 2019-06-27 20:38:37 +00:00
libclc Revert "Rename F_{None,Text,Append} to OF_{None,Text,Append}. NFC" 2019-08-05 17:23:23 +00:00
libcxx Make `vector` unconditionally move elements when exceptions are disabled. 2019-08-30 19:01:03 +00:00
libcxxabi Provide a meaningful diagnostic when LLVM_PATH doesn't point to a directory 2019-08-19 23:51:26 +00:00
libunwind [runtimes] Don't depend on libpthread on Android 2019-07-22 20:41:03 +00:00
lld [LLD] [COFF] Add a missing REQUIRES line to a recently added test. NFC. 2019-08-30 17:26:54 +00:00
lldb [lldb][NFC] More tests for invalid register command invocations 2019-08-30 19:19:25 +00:00
llgo IR: Support parsing numeric block ids, and emit them in textual output. 2019-03-22 18:27:13 +00:00
llvm [DFAPacketizer] Allow namespacing of automata per-itinerary 2019-08-30 19:50:49 +00:00
openmp Use target_impl functions to replace more inline asm 2019-08-28 15:04:06 +00:00
parallel-libs Fix typos throughout the license files that somehow I and my reviewers 2019-01-21 09:52:34 +00:00
polly [DependenceInfo] Compute WAR dependence info using ISL kills. NFC. 2019-08-29 18:55:55 +00:00
pstl [pstl] Allow customizing whether per-TU insulation is provided 2019-08-13 12:49:00 +00:00
.arcconfig Update monorepo .arcconfig with new project callsign. 2019-01-31 14:34:59 +00:00
.clang-format Add .clang-tidy and .clang-format files to the toplevel of the 2019-01-29 16:43:16 +00:00
.clang-tidy Disable tidy checks with too many hits 2019-02-01 11:20:13 +00:00
.gitignore Change /build to /build* in top-level .gitignore. 2019-08-02 02:14:08 +00:00
README.md
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README.md

The LLVM Compiler Infrastructure

This directory and its subdirectories contain source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and runtime environments.