llvm-6502/lib/Transforms
Duncan Sands 33756f96d7 Reduce the number of dom queries made by GVN's conditional propagation
logic by half: isOnlyReachableViaThisEdge was trying to be clever and
handle the case of a branch to a basic block which is contained in a
loop.  This costs a domtree lookup and is completely useless due to
GVN's position in the pass pipeline: all loops have preheaders at this
point, which means it is enough for isOnlyReachableViaThisEdge to check
that Dst has only one predecessor.  (I checked this theoretical argument
by running over the entire nightly testsuite, and indeed it is so!).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149838 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05 18:25:50 +00:00
..
Hello Since the Hello pass is built as a loadable dynamic library, don't try to convert it to new-style registration yet. 2010-10-07 00:31:16 +00:00
InstCombine Narrow test further. Make bot and test happy. 2012-02-03 00:26:07 +00:00
Instrumentation reapply the patches reverted in r149470 that reenable ConstantDataArray, 2012-02-05 02:29:43 +00:00
IPO SwitchInst refactoring. 2012-02-01 07:49:51 +00:00
Scalar Reduce the number of dom queries made by GVN's conditional propagation 2012-02-05 18:25:50 +00:00
Utils SwitchInst refactoring. 2012-02-01 07:49:51 +00:00
Vectorize Simplify contains tests using 'count'. 2012-02-05 06:35:36 +00:00
CMakeLists.txt Add a basic-block autovectorization pass. 2012-02-01 03:51:43 +00:00
LLVMBuild.txt Add a basic-block autovectorization pass. 2012-02-01 03:51:43 +00:00
Makefile Add a basic-block autovectorization pass. 2012-02-01 03:51:43 +00:00