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5d59315f13
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Jingyue Wu 5d59315f13 [LSR] canonicalize Prod*(1<<C) to Prod<<C 
Summary:
Because LSR happens at a late stage where mul of a power of 2 is
typically canonicalized to shl, this canonicalization emits code that
can be better CSE'ed.

Test Plan:
Transforms/LoopStrengthReduce/shl.ll shows how this change makes GVN more
powerful. Fixes some existing tests due to this change.

Reviewers: sanjoy, majnemer, atrick

Reviewed By: majnemer, atrick

Subscribers: majnemer, llvm-commits

Differential Revision: http://reviews.llvm.org/D10448

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240573 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-24 19:28:40 +00:00
autoconf [autoconf] Detect OLE32 for mingw. 2015-06-18 04:16:05 +00:00
bindings Update LLVM bindings after r239940. Apparently these aren't included in 2015-06-18 11:51:16 +00:00
cmake Support Solaris unused sections' gc link syntax. 2015-06-22 15:06:17 +00:00
docs docs: Update allowed values for LLVM_USE_SANITIZER 2015-06-22 18:55:46 +00:00
examples Simplify the Mangler interface now that DataLayout is mandatory. 2015-06-23 13:59:29 +00:00
include Add a SymbolRef::getValue. 2015-06-24 19:11:10 +00:00
lib [LSR] canonicalize Prod*(1<<C) to Prod<<C 2015-06-24 19:28:40 +00:00
projects build: make libunwind a proper project 2015-04-25 01:47:39 +00:00
resources In MSVC builds embed a VERSIONINFO resource in our exe and DLL files. 2015-06-12 15:58:29 +00:00
test [LSR] canonicalize Prod*(1<<C) to Prod<<C 2015-06-24 19:28:40 +00:00
tools Don't get confused with sections whose section number is reserved. 2015-06-24 14:48:54 +00:00
unittests ADTTests: merge #ifdef checks from r240436. 2015-06-24 17:05:04 +00:00
utils Pass 2 more variables to lit tests. 2015-06-23 20:57:26 +00:00
.arcconfig
.clang-format
.clang-tidy
.gitignore
CMakeLists.txt Do not pass -allow-shlib-undefined to the Solaris linker. 2015-06-22 18:24:01 +00:00
CODE_OWNERS.TXT Added Andrey Churbanov as the owner of the OpenMP runtime library code 2015-05-05 20:17:53 +00:00
configure [autoconf] Detect OLE32 for mingw. 2015-06-18 04:16:05 +00:00
CREDITS.TXT
LICENSE.TXT
llvm.spec.in
LLVMBuild.txt
Makefile
Makefile.common
Makefile.config.in Deprecate in-source autotools builds 2015-05-04 02:04:54 +00:00
Makefile.rules
README.txt

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