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Sanjoy Das 6e45bd9223 Re-apply r245635, "[InstCombine] Transform A & (L - 1) u< L --> L != 0"
The original checkin was buggy, this change has a fix.

Original commit message:

[InstCombine] Transform A & (L - 1) u< L --> L != 0

Summary:

This transform is never a pessimization at the IR level (since it
replaces an `icmp` with another), and has potentiall payoffs:

 1. It may make the `icmp` fold away or become loop invariant.
 2. It may make the `A & (L - 1)` computation dead.

This shows up in Java, in range checks generated by array accesses of
the form `a[i & (a.length - 1)]`.

Reviewers: reames, majnemer

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D12210

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245753 91177308-0d34-0410-b5e6-96231b3b80d8
2015-08-21 22:22:37 +00:00
autoconf Add an exposed variable for which c++ compiler we're using for our 2015-08-17 22:46:26 +00:00
bindings [PM/AA] Remove the last relics of the separate IPA library from LLVM, 2015-08-18 17:51:53 +00:00
cmake Filter libraries that are not installed out of CMake exports (currently 2015-08-21 18:10:57 +00:00
docs MIRLangRef: Describe the syntax for the immediate operands, register values, 2015-08-21 21:17:01 +00:00
examples [CMake] Kaleidoscope-Ch2: Don't pass -Wno-unused-private-field unconditionally. 2015-08-19 22:55:16 +00:00
include [ARM] Fix MachO CPU Subtype selection 2015-08-21 21:52:48 +00:00
lib Re-apply r245635, "[InstCombine] Transform A & (L - 1) u< L --> L != 0" 2015-08-21 22:22:37 +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 Re-apply r245635, "[InstCombine] Transform A & (L - 1) u< L --> L != 0" 2015-08-21 22:22:37 +00:00
tools [llvm-readobj] Add support for MachO DataInCodeDataCommand. 2015-08-21 20:28:30 +00:00
unittests AsmParser: Save and restore the parsing state for types using SlotMapping. 2015-08-21 21:32:39 +00:00
utils Filter libraries that are not installed out of CMake exports (currently 2015-08-21 18:10:57 +00:00
.arcconfig Updated phabricator server. 2014-04-07 03:57:04 +00:00
.clang-format Test commit. 2014-03-02 13:08:46 +00:00
.clang-tidy Enable display of compiler diagnostics in clang-tidy by default. 2014-10-29 17:29:38 +00:00
.gitignore Minor updates to gitignore so that symlinks are ignored in the projects dir. 2015-07-07 20:24:58 +00:00
CMakeLists.txt [lit] Don't disable the lit progress bar by default with MSVC 2015-08-11 21:24:59 +00:00
CODE_OWNERS.TXT Add myself as the InstCombine owner. 2015-08-12 22:30:45 +00:00
configure Add an exposed variable for which c++ compiler we're using for our 2015-08-17 22:46:26 +00:00
CREDITS.TXT [WebAssembly] Initial WebAssembly backend 2015-06-29 23:51:55 +00:00
LICENSE.TXT Update for a new year. 2015-03-12 01:25:29 +00:00
llvm.spec.in [Sparc] Implement i64 load/store support for 32-bit sparc. 2015-08-10 19:11:39 +00:00
LLVMBuild.txt Remove the very substantial, largely unmaintained legacy PGO 2013-10-02 15:42:23 +00:00
Makefile [configure/make] Propagate names of build host tools when making BuildTools 2014-03-25 21:45:41 +00:00
Makefile.common Makefile.common: Update a description, s/Source/SOURCES/ , according to MakefileGuide.html#control-variables . 2012-12-07 01:43:23 +00:00
Makefile.config.in We're actually -Wmissing-field-initializers clean thanks to the cmake 2015-08-07 16:44:47 +00:00
Makefile.rules We're actually -Wmissing-field-initializers clean thanks to the cmake 2015-08-07 16:44:47 +00:00
README.txt Revert test commit at revision 233535. 2015-03-30 12:39:03 +00:00

Low Level Virtual Machine (LLVM)
================================

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