Arnold Schwaighofer 3036182e99 BasicAA: Use reachabilty instead of dominance for checking value equality in phi ... cycles This allows the value equality check to work even if we don't have a dominator tree. Also add some more comments. I was worried about compile time impacts and did not implement reachability but used the dominance check in the initial patch. The trade-off was that the dominator tree was required. The llvm utility function isPotentiallyReachable cuts off the recursive search after 32 visits. Testing did not show any compile time regressions showing my worries unjustfied. No compile time or performance regressions at O3 -flto -mavx on test-suite + externals. Addresses review comments from r198290. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198400 91177308-0d34-0410-b5e6-96231b3b80d8		2014-01-03 05:47:03 +00:00
..
Analysis	BasicAA: Use reachabilty instead of dominance for checking value equality in phi	2014-01-03 05:47:03 +00:00
AsmParser	Begin adding docs and IR-level support for the inalloca attribute	2013-12-19 02:14:12 +00:00
Bitcode	Begin adding docs and IR-level support for the inalloca attribute	2013-12-19 02:14:12 +00:00
CodeGen	Revert "Debug Info: Type Units: Simplify type hashing using IR-provided unique names."	2014-01-03 04:49:04 +00:00
DebugInfo	DebugInfo: Move type units into the debug_types section with appropriate comdat grouping and type unit headers	2013-12-13 21:33:40 +00:00
ExecutionEngine	There are no __register_frame and __deregister_frame functions	2013-12-17 08:40:11 +00:00
IR	Allow addrspacecast in global aliases	2014-01-02 20:55:01 +00:00
IRReader	[llvm-c] Expose IRReader interface	2013-11-06 09:21:15 +00:00
Linker	Revert "Move copying of global initializers below the cloning of functions."	2013-11-09 00:43:18 +00:00
LTO	Add TargetLibraryInfo in LTO passes builder	2013-12-12 01:37:39 +00:00
MC	AsmParser: cleanup diagnostics for .rep/.rept	2013-12-28 06:39:29 +00:00
Object	Support for microMIPS TLS relocations.	2013-12-19 16:02:32 +00:00
Option	Avoid buffer copies when a Twine already is a StringRef.	2013-12-03 18:18:28 +00:00
Support	Make llvm::Regex non-copyable but movable.	2014-01-02 19:04:59 +00:00
TableGen	[TableGen] Correctly generate implicit anonymous prototype defs in multiclasses	2014-01-02 20:47:09 +00:00
Target	[PPC] Fix comment to match function name	2014-01-02 22:09:39 +00:00
Transforms	Disable compare sinking in CodeGenPrepare when multiple condition registers are available	2014-01-02 21:13:43 +00:00
CMakeLists.txt	Move LTO support library to a component, allowing it to be tested	2013-09-24 23:52:22 +00:00
LLVMBuild.txt	Move LTO support library to a component, allowing it to be tested	2013-09-24 23:52:22 +00:00
Makefile	Reformat Makefile. No other changes.	2013-10-30 04:03:03 +00:00