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Benjamin Kramer 1380494168 X86: Don't emit conditional floating point moves on when targeting pre-pentiumpro architectures. 
* Model FPSW (the FPU status word) as a register.
* Add ISel patterns for the FUCOM*, FNSTSW and SAHF instructions.
* During Legalize/Lowering, build a node sequence to transfer the comparison
result from FPSW into EFLAGS. If you're wondering about the right-shift: That's
an implicit sub-register extraction (%ax -> %ah) which is handled later on by
the instruction selector.

Fixes PR6679. Patch by Christoph Erhardt!

llvm-svn: 155704
2012-04-27 12:07:43 +00:00
autoconf Kick off 3.2 cycle for LLVM trunk. 2012-04-20 18:15:07 +00:00
bindings [python] Add negative MemoryBuffer testcase 2012-03-22 11:23:52 +00:00
cmake [CMake] Restructure how Clang, Polly and other external projects get included. 2012-04-26 19:43:35 +00:00
docs Add note about returns_twice magic removal from LLVM itself. 2012-04-26 20:10:07 +00:00
examples Remove llvm-ld and llvm-stub (which is only used by llvm-ld). 2012-04-19 19:27:54 +00:00
include Reapply the SmallMap patch with a fix. 2012-04-25 18:01:58 +00:00
lib X86: Don't emit conditional floating point moves on when targeting pre-pentiumpro architectures. 2012-04-27 12:07:43 +00:00
projects Update config.sub in the sample project. 2012-04-27 10:27:32 +00:00
runtime Defensively guard against calling malloc() with a size of zero. 2012-04-26 20:54:27 +00:00
test X86: Don't emit conditional floating point moves on when targeting pre-pentiumpro architectures. 2012-04-27 12:07:43 +00:00
tools DumpSegment64Command() wasn't returning correct result. Caught by static analyzer. rdar://11329354 2012-04-26 22:07:28 +00:00
unittests Fixed SmallMap test. The order of items is undefined in DenseMap. So being checking the increment for big mode, we can only check that all items are in map. 2012-04-26 18:45:24 +00:00
utils Add ifdef around getSubtargetFeatureName in tablegen output file so that only targets that want the function get it. This prevents other targets from getting an unused function warning. 2012-04-25 06:56:34 +00:00
.gitignore [docs] Stub out structure for Sphinx-based docs. 2012-04-19 16:31:19 +00:00
CMakeLists.txt CMake: Prune redundant LLVM_COMPILER_JOBS from llvm/CMakeLists.txt. HandleLLVMOptions.cmake has it. 2012-04-21 14:50:56 +00:00
configure Kick off 3.2 cycle for LLVM trunk. 2012-04-20 18:15:07 +00:00
CREDITS.TXT Update woefully stale credits entry. Everything listed there had been 2012-04-17 01:19:37 +00:00
LICENSE.TXT Add YAML parser to Support. 2012-04-03 23:09:22 +00:00
llvm.spec.in Tidy up. s/Low Level Virtual Machine/LLVM/. 2012-01-25 22:00:23 +00:00
LLVMBuild.txt LLVMBuild: Introduce a common section which currently has a list of the 2011-12-12 22:45:54 +00:00
Makefile When cross compiling, install a host version of llvm-config. <rdar://11187889> 2012-04-19 23:19:55 +00:00
Makefile.common
Makefile.config.in Add profiling support for Intel Parallel Amplifier XE (VTune) for JITted code in LLVM. 2012-03-13 08:33:15 +00:00
Makefile.rules Remove llvm-ld and llvm-stub (which is only used by llvm-ld). 2012-04-19 19:27:54 +00:00
README.txt test commit 2012-03-20 13:12:38 +00:00

README.txt 

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

This directory and its subdirectories contain source code for the Low Level
Virtual Machine, 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 HTML documentation provided in docs/index.html for further
assistance with LLVM.

If you're writing a package for LLVM, see docs/Packaging.html for our
suggestions.