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Jessica Paquette 3e22de98ba [AArch64][GlobalISel] Tail call memory intrinsics 
Because memory intrinsics are handled differently than other calls, we need to
check them for tail call eligiblity in the legalizer. This allows us to still
inline them when it's beneficial to do so, but also tail call when possible.

This adds simple tail calling support for when the intrinsic is followed by a
return.

It ports the attribute checks from `TargetLowering::isInTailCallPosition` into
a similarly-named function in LegalizerHelper.cpp. The target-specific
`isUsedByReturnOnly` hook is not ported here.

Update tailcall-mem-intrinsics.ll to show that GlobalISel can now tail call
memory intrinsics.

Update legalize-memcpy-et-al.mir to have a case where we don't tail call.

Differential Revision: https://reviews.llvm.org/D67566

llvm-svn: 371893
2019-09-13 20:25:58 +00:00
benchmarks
bindings Bump llvm-go to C++14 2019-08-15 10:55:25 +00:00
cmake [CMake] Don't pass all LLVM_COMPILE_FLAGS to the C compiler 2019-09-10 14:19:52 +00:00
docs [Docs] Bug fix for reference to nonexistent document 2019-09-13 20:05:57 +00:00
examples [Orc] Roll back ThreadPool to std::function 2019-09-13 11:59:51 +00:00
include [AArch64][GlobalISel] Tail call memory intrinsics 2019-09-13 20:25:58 +00:00
lib [AArch64][GlobalISel] Tail call memory intrinsics 2019-09-13 20:25:58 +00:00
projects [libc++] Take 2: Integrate the PSTL into libc++ 2019-08-05 18:29:14 +00:00
resources
runtimes Revert "Adding support for overriding LLVM_ENABLE_RUNTIMES for runtimes builds." 2019-09-11 00:43:35 +00:00
test [AArch64][GlobalISel] Tail call memory intrinsics 2019-09-13 20:25:58 +00:00
tools [yaml2obj/ObjectYAML] - Cleanup the error reporting API, add custom errors handlers. 2019-09-13 16:00:16 +00:00
unittests [Remarks][NFC] Forward declare ParsedStringTable 2019-09-13 17:27:28 +00:00
utils gn build: pacify "gn format" after 371102 2019-09-13 14:35:20 +00:00
.arcconfig
.clang-format
.clang-tidy
.gitattributes Fix the "git modified" issue on the preserve-comments-crlf.s. 2019-09-10 12:17:49 +00:00
.gitignore gitignore: Ignore Qt Creator project configuration files. NFC 2019-06-12 08:28:31 +00:00
CMakeLists.txt Revert "[utils] Implement the llvm-locstats tool" 2019-09-10 14:48:52 +00:00
CODE_OWNERS.TXT Update email address in CODE_OWNERS 2019-07-01 16:01:15 +00:00
configure
CREDITS.TXT Update email address. 2019-07-17 07:02:02 +00:00
LICENSE.TXT
llvm.spec.in
LLVMBuild.txt
README.txt
RELEASE_TESTERS.TXT

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