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Weiming Zhao 5410edddb1 [ARM] Fix 28282: cost computation for constant hoisting 
Summary:
This fixes bug: https://llvm.org/bugs/show_bug.cgi?id=28282

Currently the cost model of constant hoisting checks the bit width of the data type of the constants.
However, the actual immediate value is small enough and not need to be hoisted.
This patch checks for the actual bit width needed for the constant.

Reviewers: t.p.northover, rengolin

Subscribers: aemerson, rengolin, llvm-commits

Differential Revision: http://reviews.llvm.org/D21668

llvm-svn: 274073
 		2016-06-28 22:30:45 +00:00
..
Analysis Typos. NFC. 2016-06-28 17:19:10 +00:00
AsmParser Remangle intrinsics names when types are renamed 2016-06-24 15:10:29 +00:00
Bitcode Remangle intrinsics names when types are renamed 2016-06-24 15:10:29 +00:00
CodeGen Use isPositionIndependent in a few more places. 2016-06-28 20:13:36 +00:00
DebugInfo [CodeView] Healthy paranoia around strings 2016-06-24 19:34:41 +00:00
ExecutionEngine Fix lib/ExecutionEngine/IntelJITEvents/IntelJITEventListener.cpp for r273701 2016-06-24 22:38:30 +00:00
Fuzzer [libfuzzer] moving is_ascii handler inside mutation dispatcher. 2016-06-23 20:44:48 +00:00
IR Support arbitrary addrspace pointers in masked load/store intrinsics 2016-06-28 18:27:25 +00:00
IRReader Remove autoconf support 2016-01-26 21:29:08 +00:00
LTO [UpdateCompilerUsed] API rename and cleanup, suggested by Rafaael. 2016-06-22 19:50:42 +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: New representation for CFI and virtual call optimization pass metadata. 2016-06-24 21:21:32 +00:00
MC [ARM] Fix Thumb text sections' flags under COFF/Windows 2016-06-27 14:42:20 +00:00
Object Change all but the last ErrorOr<...> use for MachOUniversalBinary to Expected<...> to 2016-06-27 21:39:39 +00:00
ObjectYAML [YAML] Fix YAML tags appearing before the start of sequence elements 2016-06-28 21:10:26 +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 [PM] Improve the debugging and logging facilities of the CGSCC bits of 2016-06-27 23:26:08 +00:00
ProfileData [Coverage] Clarify ownership of a MemoryBuffer in the reader (NFC) 2016-06-21 22:22:33 +00:00
Support Revert r274054 to try to appease the bot 2016-06-28 22:20:17 +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 [ARM] Fix 28282: cost computation for constant hoisting 2016-06-28 22:30:45 +00:00
Transforms [LLE] Don't hoist conditionally executed loads 2016-06-28 04:02:47 +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