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Chris Lattner 8adf14ea21 Implement the first half of PR3290: if there is a store of an integer to a (transitive) bitcast the alloca and if that integer has the full size of the alloca, then it clobbers the whole thing. Handle this by extracting pieces out of the stored integer and filing them away in the SROA'd elements. This triggers fairly frequently because the CFE uses integers to pass small structs by value and the inliner exposes these. For example, in kimwitu++, I see a bunch of these with i64 stores to "%struct.std::pair<std::_Rb_tree_const_iterator<kc::impl_abstract_phylum*>,bool>" In 176.gcc I see a few i32 stores to "%struct..0anon". In the testcase, this is a difference between compiling test1 to: _test1: subl $12, %esp movl 20(%esp), %eax movl %eax, 4(%esp) movl 16(%esp), %eax movl %eax, (%esp) movl (%esp), %eax addl 4(%esp), %eax addl $12, %esp ret vs: _test1: movl 8(%esp), %eax addl 4(%esp), %eax ret The second half of this will be to handle loads of the same form. llvm-svn: 61853		2009-01-07 08:11:13 +00:00
autoconf	Modify the unittests Makefiles so that they don't rebuild parts of LLVM just to	2009-01-04 23:12:21 +00:00
bindings	PR2731: C and Ocaml bindings for setTailCall and isTailCall.	2008-08-30 16:34:54 +00:00
cmake	Fix a link issue I ran into trying compiling LLVM on MinGW with CMake.	2008-11-30 02:42:05 +00:00
docs	Get rid of the tagging functions and use PointerIntPair.	2009-01-05 16:05:32 +00:00
examples	reapply Sanjiv's patch to genericize memcpy/memset/memmove to take an	2008-11-21 16:42:48 +00:00
include	The coalescer does not coalesce a virtual register to a physical register if any of the physical register's sub-register live intervals overlaps with the virtual register. This is overly conservative. It prevents a extract_subreg from being coalesced away:	2009-01-07 02:08:57 +00:00
lib	Implement the first half of PR3290: if there is a store of an	2009-01-07 08:11:13 +00:00
projects	Add "sample" documentation to sample project.	2008-09-15 05:31:29 +00:00
runtime
test	Implement the first half of PR3290: if there is a store of an	2009-01-07 08:11:13 +00:00
tools	make llvm-ld smart enough to link against native libraries that are	2009-01-05 19:01:32 +00:00
unittests	Modify the unittests Makefiles so that they don't rebuild parts of LLVM just to	2009-01-04 23:12:21 +00:00
utils	Improve support for type-generic vector intrinsics by teaching TableGen how	2009-01-07 00:09:01 +00:00
website
win32	Rename AddReadAttrs to FunctionAttrs, and teach it how	2008-12-31 16:14:43 +00:00
Xcode	Remove Stacker.html from Xcode project.	2008-10-14 23:23:59 +00:00
build-for-llvm-top.sh
CMakeLists.txt	CMake: Option for building with -fPIC.	2008-11-20 19:13:51 +00:00
configure	Regenerate.	2009-01-04 23:12:30 +00:00
CREDITS.TXT	Keep CREDITS.TXT sorted by name.	2008-11-07 12:44:36 +00:00
LICENSE.TXT	Renamed Google Test license file from COPYING to LICENSE.TXT to match LLVM	2009-01-05 17:42:15 +00:00
llvm.spec.in
Makefile	Modify the unittests Makefiles so that they don't rebuild parts of LLVM just to	2009-01-04 23:12:21 +00:00
Makefile.common
Makefile.config.in	Use spaces rather than tab.	2008-10-22 09:42:14 +00:00
Makefile.rules	Modify the unittests Makefiles so that they don't rebuild parts of LLVM just to	2009-01-04 23:12:21 +00:00
ModuleInfo.txt
README.txt

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
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Please see the HTML documentation provided in docs/index.html for further
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