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768d8b571a
llvm-mirror/lib
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Evgeniy Stepanov 768d8b571a MemTag: stack initializer merging. 
Summary:
MTE provides instructions to update memory tags and data at the same
time. This change makes use of those to generate more compact code for
stack variable tagging + initialization.

We collect memory store and memset instructions following an alloca or a
lifetime.start call, and replace them with the corresponding MTE
intrinsics. Since the intrinsics work on 16-byte aligned chunks, the
stored values are combined as necessary.

Reviewers: pcc, vitalybuka, ostannard

Subscribers: srhines, javed.absar, hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D66167

llvm-svn: 369297
2019-08-19 20:47:09 +00:00
..
Analysis [MemorySSA] Rename uses when inserting memory uses. 2019-08-19 18:57:40 +00:00
AsmParser [llvm] Migrate llvm::make_unique to std::make_unique 2019-08-15 15:54:37 +00:00
BinaryFormat [Dwarf] Complete the list of type tags. 2019-08-13 17:00:54 +00:00
Bitcode [llvm] Migrate llvm::make_unique to std::make_unique 2019-08-15 15:54:37 +00:00
Bitstream [Bitcode] Move Bitstream to a separate library 2019-07-03 22:40:07 +00:00
CodeGen [CGP] Remove ModifiedDT from the makeBitReverse loop 2019-08-19 18:02:24 +00:00
DebugInfo Remove the temporary code. NFC. 2019-08-16 03:40:04 +00:00
Demangle llvm-undname: Correctly demangle vararg parameters 2019-06-04 19:10:08 +00:00
ExecutionEngine [ORC] Remove some stray debugging output accidentally left in r368707 2019-08-16 19:33:37 +00:00
Fuzzer
FuzzMutate [llvm] Migrate llvm::make_unique to std::make_unique 2019-08-15 15:54:37 +00:00
IR Link libpthread into LLVMCore.so 2019-08-15 18:06:30 +00:00
IRReader
LineEditor [CMake] Delete redundant DEPENDS/LINK_LIBS from LineEditor/XRay 2019-06-22 01:50:21 +00:00
Linker Linker: Add support for GlobalIFunc. 2019-08-08 22:09:18 +00:00
LTO [NewPM][PassInstrumentation] IR printing support for (Thin)LTO 2019-08-15 17:47:44 +00:00
MC [MC] Simplify ELFObjectWriter::recordRelocation. NFC 2019-08-19 10:05:59 +00:00
MCA [llvm] Migrate llvm::make_unique to std::make_unique 2019-08-15 15:54:37 +00:00
Object [Object/COFF.h] - Stop returning std::error_code in a few methods. NFCI. 2019-08-19 14:32:23 +00:00
ObjectYAML [llvm] Migrate llvm::make_unique to std::make_unique 2019-08-15 15:54:37 +00:00
Option [llvm] Migrate llvm::make_unique to std::make_unique 2019-08-15 15:54:37 +00:00
Passes Title: Loop Cache Analysis 2019-08-09 13:56:29 +00:00
ProfileData [llvm] Migrate llvm::make_unique to std::make_unique 2019-08-15 15:54:37 +00:00
Remarks [llvm] Migrate llvm::make_unique to std::make_unique 2019-08-15 15:54:37 +00:00
Support [Support] Replace sys::Mutex with their standard equivalents. 2019-08-19 19:49:57 +00:00
TableGen [llvm] Migrate llvm::make_unique to std::make_unique 2019-08-15 15:54:37 +00:00
Target MemTag: stack initializer merging. 2019-08-19 20:47:09 +00:00
Testing [Testing] Move clangd::Annotations to llvm testing support 2019-04-25 10:08:31 +00:00
TextAPI [TextAPI] Update reader to be supported by lib/Object 2019-08-16 15:30:48 +00:00
ToolDrivers [llvm-dlltool] Clarify an error message. NFC. 2019-08-02 11:20:03 +00:00
Transforms Re-apply fixed "[Attributor] Fix: Make sure we set the changed flag" 2019-08-19 19:14:10 +00:00
WindowsManifest [llvm] Migrate llvm::make_unique to std::make_unique 2019-08-15 15:54:37 +00:00
XRay [llvm] Migrate llvm::make_unique to std::make_unique 2019-08-15 15:54:37 +00:00
CMakeLists.txt Fix build errors LLVM tests are disabled. 2019-07-11 22:08:35 +00:00
LLVMBuild.txt [Bitcode] Move Bitstream to a separate library 2019-07-03 22:40:07 +00:00