Juergen Ributzka eb1c51f8b3 [FastISel] Let the target decide first if it wants to materialize a constant. ... This changes the order in which FastISel tries to materialize a constant. Originally it would try to use a simple target-independent approach, which can lead to the generation of inefficient code. On X86 this would result in the use of movabsq to materialize any 64bit integer constant - even for simple and small values such as 0 and 1. Also some very funny floating-point materialization could be observed too. On AArch64 it would materialize the constant 0 in a register even the architecture has an actual "zero" register. On ARM it would generate unnecessary mov instructions or not use mvn. This change simply changes the order and always asks the target first if it likes to materialize the constant. This doesn't fix all the issues mentioned above, but it enables the targets to implement such optimizations. Related to <rdar://problem/17420988>. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215588 91177308-0d34-0410-b5e6-96231b3b80d8		2014-08-13 22:08:02 +00:00
..
ADT	Canonicalize header guards into a common format.	2014-08-13 16:26:38 +00:00
Analysis	Canonicalize header guards into a common format.	2014-08-13 16:26:38 +00:00
AsmParser
Bitcode	Canonicalize header guards into a common format.	2014-08-13 16:26:38 +00:00
CodeGen	[FastISel] Let the target decide first if it wants to materialize a constant.	2014-08-13 22:08:02 +00:00
Config	Regenerate autoconf, previous updates to the configury haven't	2014-07-28 22:00:44 +00:00
DebugInfo	Use a reference instead of a pointer.	2014-07-31 20:19:36 +00:00
ExecutionEngine	Simplify ownership with std::unique_ptr. NFC.	2014-08-13 18:49:01 +00:00
IR	Canonicalize header guards into a common format.	2014-08-13 16:26:38 +00:00
IRReader	Make a helper function static. No functionality change.	2014-07-05 00:39:08 +00:00
LineEditor	[C++11] Replace OwningPtr with std::unique_ptr in places where it doesn't break the API.	2014-04-21 09:34:48 +00:00
Linker	IR: Add COMDATs to the IR	2014-06-27 18:19:56 +00:00
LTO	Canonicalize header guards into a common format.	2014-08-13 16:26:38 +00:00
MC	Canonicalize header guards into a common format.	2014-08-13 16:26:38 +00:00
Object	Canonicalize header guards into a common format.	2014-08-13 16:26:38 +00:00
Option	Option: Propagate flags from groups to options in each group	2014-07-12 00:18:58 +00:00
ProfileData	Canonicalize header guards into a common format.	2014-08-13 16:26:38 +00:00
Support	Canonicalize header guards into a common format.	2014-08-13 16:26:38 +00:00
TableGen	Canonicalize header guards into a common format.	2014-08-13 16:26:38 +00:00
Target	[PowerPC] Implement PPCTargetLowering::getTgtMemIntrinsic	2014-08-13 01:15:40 +00:00
Transforms	Canonicalize header guards into a common format.	2014-08-13 16:26:38 +00:00
CMakeLists.txt	[modules] Add module maps for LLVM. These are not quite ready for prime-time	2014-05-21 02:46:14 +00:00
InitializePasses.h	MachineCombiner Pass for selecting faster instruction	2014-08-03 21:35:39 +00:00
LinkAllIR.h
LinkAllPasses.h	Move -verify-use-list-order into llvm-uselistorder	2014-07-25 17:13:03 +00:00
module.modulemap	[modules] Update module map workaround to cope with the problematic file having	2014-08-07 20:27:08 +00:00
module.modulemap.build	[modules] Add module maps for LLVM. These are not quite ready for prime-time	2014-05-21 02:46:14 +00:00
Pass.h	Revert "[PM] Add pass run listeners to the pass manager."	2014-05-15 17:49:20 +00:00
PassAnalysisSupport.h	[C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr.	2014-04-14 00:51:57 +00:00
PassInfo.h	Remove pimpl class from PassRegistry.	2014-06-12 16:06:51 +00:00
PassManager.h
PassRegistry.h	Remove pimpl class from PassRegistry.	2014-06-12 16:06:51 +00:00
PassSupport.h	Move GlobalMerge from Transform to CodeGen.	2014-06-13 22:57:59 +00:00