Chandler Carruth ccbf1e36d3 Switch llvm.cttz and llvm.ctlz to accept a second i1 parameter which ... indicates whether the intrinsic has a defined result for a first argument equal to zero. This will eventually allow these intrinsics to accurately model the semantics of GCC's __builtin_ctz and __builtin_clz and the X86 instructions (prior to AVX) which implement them. This patch merely sets the stage by extending the signature of these intrinsics and establishing auto-upgrade logic so that the old spelling still works both in IR and in bitcode. The upgrade logic preserves the existing (inefficient) semantics. This patch should not change any behavior. CodeGen isn't updated because it can use the existing semantics regardless of the flag's value. Note that this will be followed by API updates to Clang and DragonEgg. Reviewed by Nick Lewycky! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146357 91177308-0d34-0410-b5e6-96231b3b80d8		2011-12-12 04:26:04 +00:00
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Analysis	Switch llvm.cttz and llvm.ctlz to accept a second i1 parameter which	2011-12-12 04:26:04 +00:00
Archive	build/CMake: Finish removal of add_llvm_library_dependencies.	2011-11-29 19:25:30 +00:00
AsmParser	Push StringRefs through the metadata interface.	2011-12-06 11:50:26 +00:00
Bitcode	Fix 80-column.	2011-12-08 00:38:45 +00:00
CodeGen	[fast-isel] SelectInsertValue seems to be causing miscompiles for ARM. Disable while I investigate.	2011-12-10 21:27:40 +00:00
DebugInfo	build/CMake: Finish removal of add_llvm_library_dependencies.	2011-11-29 19:25:30 +00:00
ExecutionEngine	ExecutionEngine: refactor interface	2011-12-12 04:20:36 +00:00
Linker	build/CMake: Finish removal of add_llvm_library_dependencies.	2011-11-29 19:25:30 +00:00
MC	Handle reloc_signed_4byte in here. Not doing so was a regression from my	2011-12-09 19:57:29 +00:00
Object	build/CMake: Finish removal of add_llvm_library_dependencies.	2011-11-29 19:25:30 +00:00
Support	Support/FileSystem: Implement recursive_directory_iterator and make	2011-12-08 22:50:09 +00:00
TableGen	Check for error after InstantiateMultclassDef.	2011-12-02 18:33:03 +00:00
Target	Remove some remants of the old palign pattern fragment that were still hanging around. Also remove a cast from inside getShuffleVPERM2X128Immediate and getShuffleVPERMILPImmediate since the only caller already had done the cast.	2011-12-11 19:12:35 +00:00
Transforms	Switch llvm.cttz and llvm.ctlz to accept a second i1 parameter which	2011-12-12 04:26:04 +00:00
VMCore	Switch llvm.cttz and llvm.ctlz to accept a second i1 parameter which	2011-12-12 04:26:04 +00:00
CMakeLists.txt	Move TableGen's parser and entry point into a library	2011-10-01 16:41:13 +00:00
LLVMBuild.txt	build: Add initial cut at LLVMBuild.txt files.	2011-11-03 18:53:17 +00:00
Makefile	Remove more of llvmc and dependencies.	2011-09-20 00:34:27 +00:00