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David Majnemer 49775e0173 InstCombine: Don't unconditionally preserve 'nuw' when shrinking constants 
Consider:
  %add = add nuw i32 %a, -16777216
  %and = and i32 %add, 255

Regardless of whether or not we demand the sign bit of %add, we cannot
replace -16777216 with 2130706432 without also removing 'nuw' from the
instruction.

llvm-svn: 216273
 		2014-08-22 17:11:04 +00:00
..
Analysis ValueTracking: Figure out more bits when looking at add/sub 2014-08-22 00:40:43 +00:00
AsmParser Explicitly pass ownership of the MemoryBuffer to AddNewSourceBuffer using std::unique_ptr 2014-08-21 20:44:56 +00:00
Bitcode BitcodeReader: Only create one basic block for each blockaddress 2014-08-16 01:54:37 +00:00
CodeGen Use DILexicalBlockFile, rather than DILexicalBlock, to track discriminator changes to ensure discriminator changes don't introduce new DWARF DW_TAG_lexical_blocks. 2014-08-21 22:45:21 +00:00
DebugInfo Don't own the buffer in object::Binary. 2014-08-19 18:44:46 +00:00
ExecutionEngine Remove dead code. NFC. 2014-08-21 18:11:21 +00:00
IR InstCombine: sub nsw %x, C -> add nsw %x, -C if C isn't INT_MIN 2014-08-22 16:41:23 +00:00
IRReader Modernize the .ll parsing interface. 2014-08-19 16:58:54 +00:00
LTO Move some logic to populateLTOPassManager. 2014-08-21 20:03:44 +00:00
LineEditor [CMake] Use LINK_LIBS instead of target_link_libraries(). 2014-02-26 06:41:29 +00:00
Linker Set comdats when lazily linking functions. 2014-08-15 20:17:08 +00:00
MC Explicitly pass ownership of the MemoryBuffer to AddNewSourceBuffer using std::unique_ptr 2014-08-21 20:44:56 +00:00
Object Explicitly pass ownership of the MemoryBuffer to AddNewSourceBuffer using std::unique_ptr 2014-08-21 20:44:56 +00:00
Option [Option] Support MultiArg in --help 2014-08-15 21:35:07 +00:00
ProfileData Coverage Mapping: add function's hash to coverage function records. 2014-08-21 19:23:25 +00:00
Support Explicitly pass ownership of the MemoryBuffer to AddNewSourceBuffer using std::unique_ptr 2014-08-21 20:44:56 +00:00
TableGen Explicitly pass ownership of the MemoryBuffer to AddNewSourceBuffer using std::unique_ptr 2014-08-21 20:44:56 +00:00
Target [mips] Don't use odd-numbered float registers for double arguments for fastcc 2014-08-22 09:23:22 +00:00
Transforms InstCombine: Don't unconditionally preserve 'nuw' when shrinking constants 2014-08-22 17:11:04 +00:00
CMakeLists.txt ProfileData: Introduce the InstrProfReader interface and a text reader 2014-03-21 17:24:48 +00:00
LLVMBuild.txt ProfileData: Introduce the InstrProfReader interface and a text reader 2014-03-21 17:24:48 +00:00
Makefile ProfileData: Introduce the InstrProfReader interface and a text reader 2014-03-21 17:24:48 +00:00