Hal Finkel ac8ba0c0fd Disable compare sinking in CodeGenPrepare when multiple condition registers are available ... As noted in the comment above CodeGenPrepare::OptimizeInst, which aggressively sinks compares to reduce pressure on the condition register(s), for targets such as PowerPC with multiple condition registers, this may not be the right thing to do. This adds an HasMultipleConditionRegisters boolean to TLI, and CodeGenPrepare::OptimizeInst is skipped when HasMultipleConditionRegisters is true. This functionality will be used by the PowerPC backend in an upcoming commit. Especially when the PowerPC backend starts tracking individual condition register bits as separate allocatable entities (which will happen in this upcoming commit), this sinking from CodeGenPrepare::OptimizeInst is significantly suboptimial. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198354 91177308-0d34-0410-b5e6-96231b3b80d8		2014-01-02 21:13:43 +00:00
..
Hello	Set LLVM_EXPORTED_SYMBOL_FILE in CMakeLists whose corresponding Makefiles do so.	2013-12-29 23:06:49 +00:00
InstCombine	Stay classy (and legal) LLVM. Remove links to 3rd party SMT solver whose links may not be permanent.	2013-12-19 18:35:54 +00:00
Instrumentation	[ASan] Fix the test for __asan_gen_ globals and actually fix http://llvm.org/bugs/show_bug.cgi?id=17976	2013-12-25 16:46:27 +00:00
IPO	Delete unread globals through addrspacecast	2014-01-02 20:01:43 +00:00
ObjCARC	Correct word hyphenations	2013-12-05 05:44:44 +00:00
Scalar	Disable compare sinking in CodeGenPrepare when multiple condition registers are available	2014-01-02 21:13:43 +00:00
Utils	Add support to indvars for optimizing sadd.with.overflow.	2013-12-23 23:31:49 +00:00
Vectorize	LoopVectorizer: Don't if-convert constant expressions that can trap	2013-12-17 01:11:01 +00:00
CMakeLists.txt	Extracted ObjCARC.cpp into its own library libLLVMObjCARCOpts in preparation for refactoring the ARC Optimizer.	2013-01-28 01:35:51 +00:00
LLVMBuild.txt	Extracted ObjCARC.cpp into its own library libLLVMObjCARCOpts in preparation for refactoring the ARC Optimizer.	2013-01-28 01:35:51 +00:00
Makefile	Extracted ObjCARC.cpp into its own library libLLVMObjCARCOpts in preparation for refactoring the ARC Optimizer.	2013-01-28 01:35:51 +00:00