Kristof Beyls 7bee5ceb02 Mark that SpeculativeExecution preserves Globals Alias Analysis. ... A few benchmarks with lots of accesses to global variables in the hot loops regressed a lot since r266399, which added the SpeculativeExecution pass to the default pipeline. The problem is that this pass doesn't mark Globals Alias Analysis as preserved. Globals Alias Analysis is computed in a module pass, whereas SpeculativeExecution is a function pass, and a lot of passes dependent on the Globals Alias Analysis to optimize these benchmarks are also function passes. As such, the Globals Alias Analysis information cannot be recomputed between SpeculativeExecution and the following function passes needing that information. SpeculativeExecution doesn't invalidate Globals Alias Analysis, so mark it as such to fix those performance regressions. Differential Revision: http://reviews.llvm.org/D19806 llvm-svn: 268370		2016-05-03 08:33:26 +00:00
..
Hello	Remove autoconf support	2016-01-26 21:29:08 +00:00
InstCombine	[InstCombine][SSE] Added support to VPERMD/VPERMPS to shuffle combine to accept UNDEF elements.	2016-05-01 20:43:02 +00:00
Instrumentation	Code refactoring -- preparation for new PM porting /NFC	2016-05-02 20:33:59 +00:00
IPO	ThinLTO: do not import function whose linkage prevents inlining.	2016-05-03 00:27:28 +00:00
ObjCARC	Unify XDEBUG and EXPENSIVE_CHECKS (into the latter), and add an option to the cmake build to enable them.	2016-04-29 15:22:48 +00:00
Scalar	Mark that SpeculativeExecution preserves Globals Alias Analysis.	2016-05-03 08:33:26 +00:00
Utils	Revert "[SimplifyCFG] Extend TryToSimplifyUncondBranchFromEmptyBlock for empty block including lifetime intrinsics"	2016-05-02 19:43:22 +00:00
Vectorize	[SLPVectorizer] Add operand bundles to vectorized functions	2016-04-29 07:09:51 +00:00
CMakeLists.txt
LLVMBuild.txt