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Zhan Jun Liau 0df350589f [SystemZ] Recognize RISBG opportunities involving a truncate 
Summary:
Recognize RISBG opportunities where the end result is narrower than the
original input - where a truncate separates the shift/and operations.

The motivating case is some code in postgres which looks like:

	srlg	%r2, %r0, 11
	nilh	%r2, 255

Reviewers: uweigand

Author: RolandF

Differential Revision: http://reviews.llvm.org/D21452

llvm-svn: 273433
 		2016-06-22 16:16:27 +00:00
..
Analysis reverted the prev commit due to assertion failure 2016-06-21 12:10:11 +00:00
AsmParser IR: Allow metadata attachments on declarations, and fix lazy loaded metadata issue with globals. 2016-06-21 23:42:48 +00:00
Bitcode Delete more dead code. 2016-06-22 12:44:16 +00:00
CodeGen [codeview] Remove ClassInfoMap 2016-06-22 16:06:42 +00:00
DebugInfo [codeview] Add support for splitting field list records over 64KB 2016-06-21 18:33:01 +00:00
ExecutionEngine Apply another batch of fixes from clang-tidy's performance-unnecessary-value-param. 2016-06-17 20:41:14 +00:00
Fuzzer [libFuzzer] make the single-run output more reliable 2016-06-17 13:07:06 +00:00
IR NFC. Move Verifier::verifyIntrinsicType to Intrinsics.h 2016-06-22 14:56:33 +00:00
IRReader Remove autoconf support 2016-01-26 21:29:08 +00:00
LTO [LTO] Move UpdateCompilerUsed.h from lib/ to include/ 2016-06-22 04:52:43 +00:00
LibDriver LibDriver: Silently do nothing when provided no inputs. 2016-04-13 19:36:04 +00:00
LineEditor Fix Clang-tidy modernize-deprecated-headers warnings in some files; other minor fixes. 2016-03-28 17:40:08 +00:00
Linker [IR] [DAE] Copy comdats during DAE, and don't copy comdats in GlobalObject::copyAttributesFrom. 2016-06-15 23:20:15 +00:00
MC Delete some dead code. 2016-06-21 19:48:12 +00:00
Object Add support for Darwin’s 64-bit universal files with 64-bit offsets and sizes for the objects. 2016-06-20 22:16:18 +00:00
ObjectYAML Support/ELF: Add AMDGPU relocation definitions to match documentation 2016-06-17 22:38:08 +00:00
Option Option parser: class for consuming a joined arg in addition to all remaining args 2016-04-15 00:23:30 +00:00
Passes Add a super basic LazyCallGraph DOT printer. 2016-06-18 09:17:32 +00:00
ProfileData [Coverage] Clarify ownership of a MemoryBuffer in the reader (NFC) 2016-06-21 22:22:33 +00:00
Support Switch to using an API that handles non-ASCII paths appropriately on Windows. 2016-06-21 14:24:48 +00:00
TableGen Avoid copies of std::strings and APInt/APFloats where we only read from it 2016-06-08 10:01:20 +00:00
Target [SystemZ] Recognize RISBG opportunities involving a truncate 2016-06-22 16:16:27 +00:00
Transforms Delete more dead code. 2016-06-22 12:44:16 +00:00
CMakeLists.txt Move ObjectYAML code to a new library. 2016-03-01 19:15:06 +00:00
LLVMBuild.txt Add LLVMBuild for ObjectYAML. 2016-03-01 21:29:33 +00:00