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Bjorn Pettersson b37f5f2114 Inform pass manager when child loops are deleted 
As part of the nontrivial unswitching we could end up removing child
loops. This patch add a notification to the pass manager when
that happens (using the markLoopAsDeleted callback).

Without this there could be stale LoopAccessAnalysis results cached
in the analysis manager. Those analysis results are cached based on
a Loop* as key. Since the BumpPtrAllocator used to allocate
Loop objects could be resetted between different runs of for
example the loop-distribute pass (running on different functions),
a new Loop object could be created using the same Loop pointer.
And then when requiring the LoopAccessAnalysis for the loop we
got the stale (corrupt) result from the destroyed loop.

Reviewed By: aeubanks

Differential Revision: https://reviews.llvm.org/D109257

(fixes PR51754)
(cherry-picked from commit 0f0344dd1e3b53387bb396070916e67f4c426da6)
2021-09-09 09:04:59 -07:00
benchmarks
bindings [IR] Rename comdat noduplicates to comdat nodeduplicate 2021-07-20 12:47:10 -07:00
cmake Add llvm-ml to LLVM_TOOLCHAIN_TOOLS (PR50536) 2021-09-08 08:44:45 -07:00
docs [docs] Update release notes with items related to Flang 2021-09-06 14:48:43 +01:00
examples [ORC] Require ExecutorProcessControl when constructing an ExecutionSession. 2021-07-27 16:53:49 +10:00
include Fine grain control over some symbol visibility 2021-09-08 21:06:19 -07:00
lib Inform pass manager when child loops are deleted 2021-09-09 09:04:59 -07:00
projects [RFC][debuginfo-test] Rename debug-info lit tests for general purposes 2021-06-28 11:31:40 +01:00
resources
runtimes [libomptarget][amdcgn] Only add opt/llvm-link dependency if TARGET is available 2021-09-03 15:49:42 -07:00
test Inform pass manager when child loops are deleted 2021-09-09 09:04:59 -07:00
tools [llvm-objdump] Fix 'llvm-objdump -dr' for executables with relocations 2021-09-08 08:45:39 -07:00
unittests [mlir][openacc] Initial translation for DataOp to LLVM IR 2021-07-27 22:04:04 -04:00
utils [llvm] [lit] Fix inconsistent test order in shtest-keyword-parse-errors 2021-08-06 12:50:56 -07:00
.clang-format
.clang-tidy NFC: .clang-tidy: Inherit configs from parents to improve maintainability 2021-06-08 08:25:59 -07:00
.gitattributes Fix the "git modified" issue on the preserve-comments-crlf.s. 2019-09-10 12:17:49 +00:00
.gitignore Remove .gitignore entries not relevant in the monorepo. 2021-04-07 12:25:02 -07:00
CMakeLists.txt [CMake] Change -DENABLE_EXPERIMENTAL_NEW_PASS_MANAGER=off to -DLLVM_ENABLE_NEW_PASS_MANAGER=off 2021-08-26 16:40:38 -07:00
CODE_OWNERS.TXT [NFC] Update code owners file 2021-07-20 11:29:10 -07:00
configure
CREDITS.TXT Update personal info in CREDITS.TXT 2021-04-11 19:25:02 +08:00
LICENSE.TXT Fix typos throughout the license files that somehow I and my reviewers 2019-01-21 09:52:34 +00:00
llvm.spec.in Update structured references to the license to the new license. 2019-01-19 11:30:51 +00:00
README.txt Test commit. 2020-03-14 18:08:26 -07:00
RELEASE_TESTERS.TXT Update the list of platforms & archs 2018-12-16 14:47:16 +00:00

README.txt 

The LLVM Compiler Infrastructure
================================

This directory and its subdirectories contain source code for LLVM,
a toolkit for the construction of highly optimized compilers,
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LLVM is open source software. You may freely distribute it under the terms of
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Please see the documentation provided in docs/ for further
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