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James Molloy cd45f4f580 Add support for floating-point minnum and maxnum 
The select pattern recognition in ValueTracking (as used by InstCombine
and SelectionDAGBuilder) only knew about integer patterns. This teaches
it about minimum and maximum operations.

matchSelectPattern() has been extended to return a struct containing the
existing Flavor and a new enum defining the pattern's behavior when
given one NaN operand.

C minnum() is defined to return the non-NaN operand in this case, but
the idiomatic C "a < b ? a : b" would return the NaN operand.

ARM and AArch64 at least have different instructions for these different cases.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244580 91177308-0d34-0410-b5e6-96231b3b80d8
2015-08-11 09:12:57 +00:00
autoconf We're actually -Wmissing-field-initializers clean thanks to the cmake 2015-08-07 16:44:47 +00:00
bindings Revert "Fix llvm-config to emit the linker flag for the combined shared object built by autoconfig/make instead of the individual components." 2015-08-05 20:03:26 +00:00
cmake Remove the configure and cmake checks for sys/wait.h 2015-08-04 06:29:58 +00:00
docs [libFuzzer] fix docs build 2015-08-11 04:16:37 +00:00
examples [PM/AA] Hoist the interface for BasicAA into a header file. 2015-08-06 07:33:15 +00:00
include Add support for floating-point minnum and maxnum 2015-08-11 09:12:57 +00:00
lib Add support for floating-point minnum and maxnum 2015-08-11 09:12:57 +00:00
projects build: make libunwind a proper project 2015-04-25 01:47:39 +00:00
resources In MSVC builds embed a VERSIONINFO resource in our exe and DLL files. 2015-06-12 15:58:29 +00:00
test Add support for floating-point minnum and maxnum 2015-08-11 09:12:57 +00:00
tools [llvm-symbolizer] Remove underscores and other C mangling on Windows 2015-08-10 21:47:11 +00:00
unittests Add support for floating-point minnum and maxnum 2015-08-11 09:12:57 +00:00
utils Explicitly clear the MI operand list when getInstruction() is called. Call MI.clear() within MCD::OPC_Decode case and inside of translateInstruction() for the X86 target. Remove now unnecessary MI.clear() from ARMDisassembler. 2015-08-11 01:15:07 +00:00
.arcconfig Updated phabricator server. 2014-04-07 03:57:04 +00:00
.clang-format
.clang-tidy Enable display of compiler diagnostics in clang-tidy by default. 2014-10-29 17:29:38 +00:00
.gitignore Minor updates to gitignore so that symlinks are ignored in the projects dir. 2015-07-07 20:24:58 +00:00
CMakeLists.txt cmake: Make CMAKE_BUILD_TYPE check case-insensitive 2015-08-10 21:58:27 +00:00
CODE_OWNERS.TXT [WebAssembly] Initial WebAssembly backend 2015-06-29 23:51:55 +00:00
configure We're actually -Wmissing-field-initializers clean thanks to the cmake 2015-08-07 16:44:47 +00:00
CREDITS.TXT [WebAssembly] Initial WebAssembly backend 2015-06-29 23:51:55 +00:00
LICENSE.TXT Update for a new year. 2015-03-12 01:25:29 +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
Makefile
Makefile.common
Makefile.config.in We're actually -Wmissing-field-initializers clean thanks to the cmake 2015-08-07 16:44:47 +00:00
Makefile.rules We're actually -Wmissing-field-initializers clean thanks to the cmake 2015-08-07 16:44:47 +00:00
README.txt Revert test commit at revision 233535. 2015-03-30 12:39:03 +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're writing a package for LLVM, see docs/Packaging.rst for our
suggestions.