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f1ee202e98
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Dan Gohman f1ee202e98 [WebAssembly] Revise the strategy for inline asm. 
Previously, an "r" constraint would mean the compiler provides a value
on WebAssembly's operand stack. This was tricky to use properly,
particularly since it isn't possible to declare a new local from within
an inline asm string.

With this patch, "r" provides the value in a WebAssembly local, and the
local index is provided to the inline asm string. This requires inline
asm to use get_local and set_local to read the register. This does
potentially result in larger code size, however inline asm should
hopefully be quite rare in WebAssembly.

This also means that the "m" constraint can no longer be supported, as
WebAssembly has nothing like a "memory operand" that includes an
implicit get_local.

This fixes PR34599 for the wasm32-unknown-unknown-wasm target (though
not for the ELF target).

llvm-svn: 317707
2017-11-08 19:18:08 +00:00
bindings Update go bindings to use new functions from rL317135. 2017-11-02 10:22:26 +00:00
cmake [CMake] Remove target to build native tablegen 2017-11-08 14:31:54 +00:00
docs Add a -D flag to FileCheck to define variables 2017-11-07 13:24:44 +00:00
examples Fix broken links to the Itanium CXX ABI 2017-09-12 00:19:11 +00:00
include NFC: Rename MCSafeSEHFragment to MCSymbolIdFragment 2017-11-08 18:57:02 +00:00
lib [WebAssembly] Revise the strategy for inline asm. 2017-11-08 19:18:08 +00:00
projects Add temporary workaround to allow in-tree libc++ builds on Windows 2017-05-11 01:44:30 +00:00
resources In MSVC builds embed a VERSIONINFO resource in our exe and DLL files. 2015-06-12 15:58:29 +00:00
runtimes [CMake][runtimes] Use the same configuration for non-target and "default" target 2017-09-08 22:26:50 +00:00
test [WebAssembly] Revise the strategy for inline asm. 2017-11-08 19:18:08 +00:00
tools Convert FileOutputBuffer::commit to Error. 2017-11-08 01:50:29 +00:00
unittests Convert FileOutputBuffer::commit to Error. 2017-11-08 01:50:29 +00:00
utils [utils] Add RISC-V support to update_llc_test_checks.py 2017-11-08 14:24:42 +00:00
.arcconfig project_id is from another era in phabricator land and does not provide any value. 2016-09-27 15:47:29 +00:00
.clang-format Test commit. 2014-03-02 13:08:46 +00:00
.clang-tidy .clang-tidy: correct style name is 'camelBack' not 'lowerCase'. 2016-09-13 19:04:26 +00:00
.gitignore gitignore: Ignore .vs folder (VS2017 config files) 2017-04-08 00:16:58 +00:00
CMakeLists.txt Move the srpm, ocaml_make_directory, llvm_vcsrevision_h, and llvm-headers projects into the Misc folder on IDEs like Visual Studio rather than leave them in the root directory. NFC. 2017-11-04 19:59:14 +00:00
CODE_OWNERS.TXT Update my email addresses, NFC. 2017-10-26 10:16:54 +00:00
configure Remove autoconf support 2016-01-26 21:29:08 +00:00
CREDITS.TXT Add myself to CREDITS.txt 2017-09-18 14:33:39 +00:00
LICENSE.TXT Bump year to 2017 in LICENSE.txt 2017-01-12 18:02:42 +00:00
llvm.spec.in [Sparc] Implement i64 load/store support for 32-bit sparc. 2015-08-10 19:11:39 +00:00
LLVMBuild.txt
README.txt Test commit access 2017-08-18 02:39:28 +00:00
RELEASE_TESTERS.TXT Update my email addresses, NFC. 2017-10-26 10:16:54 +00:00

README.txt 

Low Level Virtual Machine (LLVM)
================================

This directory and its subdirectories contain source code for LLVM,
a toolkit for the construction of highly optimized compilers,
optimizers, and runtime environments.

LLVM is open source software. You may freely distribute it under the terms of
the license agreement found in LICENSE.txt.

Please see the documentation provided in docs/ for further
assistance with LLVM, and in particular docs/GettingStarted.rst for getting
started with LLVM and docs/README.txt for an overview of LLVM's
documentation setup.

If you are writing a package for LLVM, see docs/Packaging.rst for our
suggestions.