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Owen Anderson f4b1a5bdc4 When adding the carry bit to another value on X86, exploit the fact that the carry-materialization 
(sbbl x, x) sets the registers to 0 or ~0.  Combined with two's complement arithmetic, we can fold
the intermediate AND and the ADD into a single SUB.

This fixes <rdar://problem/8449754>.

llvm-svn: 114460
 		2010-09-21 18:41:19 +00:00
..
Analysis Simplify code. 2010-09-21 16:41:29 +00:00
Archive Revert "CMake: Get rid of LLVMLibDeps.cmake and export the libraries normally." 2010-09-13 23:59:48 +00:00
AsmParser Revert "CMake: Get rid of LLVMLibDeps.cmake and export the libraries normally." 2010-09-13 23:59:48 +00:00
Bitcode Revert "CMake: Get rid of LLVMLibDeps.cmake and export the libraries normally." 2010-09-13 23:59:48 +00:00
CodeGen Don't pollute the global namespace. 2010-09-21 18:34:17 +00:00
CompilerDriver llvmc: Allow multiple output languages. 2010-09-21 14:59:42 +00:00
ExecutionEngine Revert "CMake: Get rid of LLVMLibDeps.cmake and export the libraries normally." 2010-09-13 23:59:48 +00:00
Linker Revert "CMake: Get rid of LLVMLibDeps.cmake and export the libraries normally." 2010-09-13 23:59:48 +00:00
MC Revert unrelated change that was accidentally included in the previous commit. 2010-09-21 00:40:19 +00:00
Support Add better support for environment portion of triple. Original patch by 2010-09-16 08:25:48 +00:00
System Fix the "unable to rename temporary" lit test failing on Windows. rename is now copy + delete on Windows. Problem to be revisited for a permanent and clean solution. 2010-09-20 04:03:07 +00:00
Target When adding the carry bit to another value on X86, exploit the fact that the carry-materialization 2010-09-21 18:41:19 +00:00
Transforms do not rely on the implicit-dereference semantics of dyn_cast_or_null 2010-09-18 11:55:34 +00:00
VMCore Allow the PassRegistry mutex to be lazily initialized, and clean up the global namespace at the same time. 2010-09-16 23:44:50 +00:00
Makefile remove llvm-db: it is completely broken and if anyone wants to do a debugger, 2009-10-05 02:29:51 +00:00