Richard Sandiford 80a3301b37 [SystemZ] Optimize (sext (ashr (shl ...), ...)) ...

...into (ashr (shl (anyext X), ...), ...), which requires one fewer
instruction.  The (anyext X) can sometimes be simplified too.

I didn't do this in DAGCombiner because widening shifts isn't a win
on all targets.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199114 91177308-0d34-0410-b5e6-96231b3b80d8

2014-01-13 15:17:53 +00:00

..

Analysis

[PM] Split DominatorTree into a concrete analysis result object which

2014-01-13 13:07:17 +00:00

AsmParser

Move the LLVM IR asm writer header files into the IR directory, as they

2014-01-07 12:34:26 +00:00

Bitcode

[PM] Wire up support for writing bitcode with new PM.

2014-01-13 07:38:24 +00:00

CodeGen

[PM] Split DominatorTree into a concrete analysis result object which

2014-01-13 13:07:17 +00:00

DebugInfo

llvm-dwarfdump: type unit dwo support

2014-01-09 05:08:24 +00:00

ExecutionEngine

Re-sort #include lines again, prior to moving headers around.

2014-01-13 08:04:33 +00:00

IR

[PM] Split DominatorTree into a concrete analysis result object which

2014-01-13 13:07:17 +00:00

IRReader

Move the LLVM IR asm writer header files into the IR directory, as they

2014-01-07 12:34:26 +00:00

Linker

…

LTO

[cleanup] Move the Dominators.h and Verifier.h headers into the IR

2014-01-13 09:26:24 +00:00

MC

Revert "Revert r198851, "Prototype of skeleton type units for fission""

2014-01-10 01:38:41 +00:00

Object

Re-sort all of the includes with ./utils/sort_includes.py so that

2014-01-07 11:48:04 +00:00

Option

…

Support

raw_fd_ostream: Don't change STDERR to O_BINARY, or w*printf() (in assert()) would barf wide chars after llvm::errs().

2014-01-12 16:14:24 +00:00

TableGen

[TableGen] Correctly generate implicit anonymous prototype defs in multiclasses

2014-01-02 20:47:09 +00:00

Target

[SystemZ] Optimize (sext (ashr (shl ...), ...))

2014-01-13 15:17:53 +00:00

Transforms

[PM] Split DominatorTree into a concrete analysis result object which

2014-01-13 13:07:17 +00:00

CMakeLists.txt

…

LLVMBuild.txt

…

Makefile

…