Evan Cheng bfe8afaaec After r147827 and r147902, it's now possible for unallocatable registers to be ... live across BBs before register allocation. This miscompiled 197.parser when a cmp + b are optimized to a cbnz instruction even though the CPSR def is live-in a successor. cbnz r6, LBB89_12 ... LBB89_12: ble LBB89_1 The fix consists of two parts. 1) Teach LiveVariables that some unallocatable registers might be liveouts so don't mark their last use as kill if they are. 2) ARM constantpool island pass shouldn't form cbz / cbnz if the conditional branch does not kill CPSR. rdar://10676853 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148168 91177308-0d34-0410-b5e6-96231b3b80d8		2012-01-14 01:53:46 +00:00
..
Analysis	A DenseMap of a std::map isn't a very good idea because the "grow()" method will	2012-01-12 01:41:03 +00:00
Archive	Support/FileSystem: Add file_magic and move a vew clients over to it.	2011-12-13 23:17:12 +00:00
AsmParser	Add 'llvm_unreachable' to passify GCC's understanding of the constraints	2012-01-10 18:08:01 +00:00
Bitcode	Add 'llvm_unreachable' to passify GCC's understanding of the constraints	2012-01-10 18:08:01 +00:00
CodeGen	After r147827 and r147902, it's now possible for unallocatable registers to be	2012-01-14 01:53:46 +00:00
DebugInfo	Unweaken vtables as per http://llvm.org/docs/CodingStandards.html#ll_virtual_anch	2011-12-20 02:50:00 +00:00
ExecutionEngine	Fix typo in string	2012-01-06 07:49:17 +00:00
Linker	Link symbols with different visibilities according to the rules in the	2012-01-05 23:02:01 +00:00
MC	The error check for using -g with a .s file already containing dwarf .file	2012-01-11 18:04:47 +00:00
Object	Remove unused variables.	2011-12-25 01:20:19 +00:00
Support	Disable the crash reporter when running lit tests.	2012-01-11 20:53:25 +00:00
TableGen	Delete CodeInit and CodeRecTy from TableGen.	2012-01-13 03:38:34 +00:00
Target	After r147827 and r147902, it's now possible for unallocatable registers to be	2012-01-14 01:53:46 +00:00
Transforms	Fix an unused variable warning that Chad noticed.	2012-01-14 00:47:44 +00:00
VMCore	Added MVT::v2f16	2012-01-12 23:14:13 +00:00
CMakeLists.txt	Move TableGen's parser and entry point into a library	2011-10-01 16:41:13 +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	Remove more of llvmc and dependencies.	2011-09-20 00:34:27 +00:00