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Sanjay Patel d3550a79e4 [CodeGenPrepare] limit overflow intrinsic matching to a single basic block (2nd try)
This is a subset of the original commit from rL359879
which was reverted because it could crash when using the 'RemovedInstructions'
structure that enables delayed deletion of dead instructions. The motivating
compile-time win does not require that change though. We should get most of
that win from this change alone.

Using/updating a dominator tree to match math overflow patterns may be very
expensive in compile-time (because of the way CGP uses a DT), so just handle
the single-block case.

See post-commit thread for rL354298 for more details:
http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-20190422/646276.html

Differential Revision: https://reviews.llvm.org/D61075

llvm-svn: 359969
2019-05-04 12:46:32 +00:00
benchmarks
bindings [OCaml] Update api to account for FNeg and CallBr instructions 2019-04-16 15:00:19 +00:00
cmake build: add option to disable unwind tables 2019-05-02 19:37:26 +00:00
docs [Docs][CodeGenerator][eBPF] Correct the values for BPF_X and BPF_K 2019-05-03 16:40:16 +00:00
examples [JITLink] Update BuildingAJIT tutorials to account for API changes in r358818. 2019-04-20 17:35:28 +00:00
include [JITLink] Add two useful Section operations: find by name, get address range. 2019-05-04 00:23:09 +00:00
lib [CodeGenPrepare] limit overflow intrinsic matching to a single basic block (2nd try) 2019-05-04 12:46:32 +00:00
projects Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
resources
runtimes [CMake] Replace the sanitizer support in runtimes build with multilib 2019-04-22 23:31:39 +00:00
test [CodeGenPrepare] limit overflow intrinsic matching to a single basic block (2nd try) 2019-05-04 12:46:32 +00:00
tools Let --discard-all imply --strip-debug. 2019-05-03 14:14:01 +00:00
unittests Update PatternMatcher for FNeg 2019-05-03 21:19:12 +00:00
utils Make the git-llvm script work on older git versions that don't support git rev-parse --git-common-dir. 2019-05-03 22:03:29 +00:00
.arcconfig
.clang-format
.clang-tidy Disable tidy checks with too many hits 2019-02-01 11:20:13 +00:00
.gitattributes
.gitignore [clangd] Store index in '.clangd/index' instead of '.clangd-index' 2019-02-20 19:08:06 +00:00
CMakeLists.txt build: add option to disable unwind tables 2019-05-02 19:37:26 +00:00
CODE_OWNERS.TXT
configure
CREDITS.TXT add Qiu Chaofan (qiucf@cn.ibm.com) to the CREDITS.txt 2019-04-23 02:37:48 +00:00
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
LLVMBuild.txt Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
README.txt Testing commit access 2019-02-19 20:38:51 +00:00
RELEASE_TESTERS.TXT

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