Michael Kuperstein 6954e6256d [InstCombine] scalarizePHI should not assume the code it sees has been CSE'd ...

scalarizePHI only looked for phis that have exactly two uses - the "latch"
use, and an extract. Unfortunately, we can not assume all equivalent extracts
are CSE'd, since InstCombine itself may create an extract which is a duplicate
of an existing one. This extends it to handle several distinct extracts from
the same index.

This should fix at least some of the  performance regressions from PR27988.

Differential Revision: http://reviews.llvm.org/D20983


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@271961 91177308-0d34-0410-b5e6-96231b3b80d8

2016-06-06 23:38:33 +00:00

..

Hello

Add auto-exporting of symbols from tools so that plugins work on Windows

2016-05-26 11:16:43 +00:00

InstCombine

[InstCombine] scalarizePHI should not assume the code it sees has been CSE'd

2016-06-06 23:38:33 +00:00

Instrumentation

[PM] Port GCOVProfiler pass to the new pass manager

2016-06-05 05:12:23 +00:00

IPO

[PM] Schedule InstSimplify after late LICM run, to clean up LCSSA nodes.

2016-06-02 22:14:26 +00:00

ObjCARC

Form objc_storeStrong in the presence of bitcasts.

2016-05-27 02:13:53 +00:00

Scalar

[PM] Preserve the correct set of analyses for GVN.

2016-06-06 20:01:50 +00:00

Utils

[IndVars] Remove -liv-reduce

2016-06-05 18:01:12 +00:00

Vectorize

[LV] For some IVs, use vector phis instead of widening in the loop body

2016-06-01 17:16:46 +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