llvm-project/llvm
Philip Reames 9f61fbd75a [LV] Relax assumption that LCSSA implies single entry
This relates to the ongoing effort to support vectorization of multiple exit loops (see D93317).

The previous code assumed that LCSSA phis were always single entry before the vectorizer ran. This was correct, but only because the vectorizer allowed only a single exiting edge. There's nothing in the definition of LCSSA which requires single entry phis.

A common case where this comes up is with a loop with multiple exiting blocks which all reach a common exit block. (e.g. see the test updates)

Differential Revision: https://reviews.llvm.org/D93725
2021-01-12 12:34:52 -08:00
..
benchmarks
bindings [Go] Fix bindings/go/llvm/IRBindings.cpp 2020-12-16 10:09:58 -08:00
cmake [CMake] Fix incorrect rpath for tests if LLVM_LOCAL_RPATH isn't set 2021-01-08 21:24:18 +02:00
docs [NFC][AMDGPU] Clarify memory model support for volatile 2021-01-11 19:59:55 +00:00
examples [NFC] Reduce include files dependency and AA header cleanup (part 2). 2020-12-17 14:04:48 +03:00
include [FunctionAttrs] Derive willreturn for fns with readonly` & `mustprogress`. 2021-01-12 20:02:34 +00:00
lib [LV] Relax assumption that LCSSA implies single entry 2021-01-12 12:34:52 -08:00
projects
resources
runtimes [CMake] Split the target side of runtimes build 2021-01-11 23:39:36 -08:00
test [LV] Relax assumption that LCSSA implies single entry 2021-01-12 12:34:52 -08:00
tools [obj2yaml] - Don't crash when an object has an empty symbol table. 2021-01-12 14:08:59 +03:00
unittests [SlotIndexes] Fix and simplify basic block splitting 2021-01-12 10:50:14 +00:00
utils [llvm] Simplify string comparisons (NFC) 2021-01-11 18:48:09 -08:00
.clang-format
.clang-tidy
.gitattributes
.gitignore
CMakeLists.txt [llvm] [cmake] Remove obsolete /usr/local hack for *BSD 2021-01-12 19:26:04 +01:00
CODE_OWNERS.TXT
CREDITS.TXT
LICENSE.TXT
README.txt
RELEASE_TESTERS.TXT
configure
llvm.spec.in

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