Adrian Prantl 229943585f Move the complex address expression out of DIVariable and into an extra ... argument of the llvm.dbg.declare/llvm.dbg.value intrinsics. Previously, DIVariable was a variable-length field that has an optional reference to a Metadata array consisting of a variable number of complex address expressions. In the case of OpPiece expressions this is wasting a lot of storage in IR, because when an aggregate type is, e.g., SROA'd into all of its n individual members, the IR will contain n copies of the DIVariable, all alike, only differing in the complex address reference at the end. By making the complex address into an extra argument of the dbg.value/dbg.declare intrinsics, all of the pieces can reference the same variable and the complex address expressions can be uniqued across the CU, too. Down the road, this will allow us to move other flags, such as "indirection" out of the DIVariable, too. The new intrinsics look like this: declare void @llvm.dbg.declare(metadata %storage, metadata %var, metadata %expr) declare void @llvm.dbg.value(metadata %storage, i64 %offset, metadata %var, metadata %expr) This patch adds a new LLVM-local tag to DIExpressions, so we can detect and pretty-print DIExpression metadata nodes. What this patch doesn't do: This patch does not touch the "Indirect" field in DIVariable; but moving that into the expression would be a natural next step. http://reviews.llvm.org/D4919 rdar://problem/17994491 Thanks to dblaikie and dexonsmith for reviewing this patch! llvm-svn: 218778		2014-10-01 17:55:39 +00:00
..
ADT	Add an emplace(...) method to llvm::Optional<T>.	2014-10-01 02:12:35 +00:00
Analysis	Fix assertion in LICM doFinalization()	2014-09-24 16:48:31 +00:00
AsmParser	Pass a MemoryBufferRef when we can avoid taking ownership.	2014-08-26 21:49:01 +00:00
Bitcode	Spell out the template args for compilers having issues with the injected class	2014-09-15 16:13:33 +00:00
CodeGen	Move the complex address expression out of DIVariable and into an extra	2014-10-01 17:55:39 +00:00
Config	Regenerate autoconf, previous updates to the configury haven't	2014-07-28 22:00:44 +00:00
DebugInfo	Fix build faliure introduced by r217129.	2014-09-04 06:35:09 +00:00
ExecutionEngine	[MCJIT] Turn the getSymbolAddress free function created in r218626 into a static	2014-10-01 04:11:13 +00:00
IR	Move the complex address expression out of DIVariable and into an extra	2014-10-01 17:55:39 +00:00
IRReader	Pass a MemoryBufferRef when we can avoid taking ownership.	2014-08-26 21:49:01 +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	unique_ptrify LTOCodeGenerator::NativeObjectFile	2014-09-02 18:21:06 +00:00
MC	WinCOFFObjectWriter: optimize the string table for common suffices	2014-09-29 22:43:20 +00:00
Object	Object: Add range iterators for Archive children	2014-09-25 22:56:54 +00:00
Option	Add an overload of getLastArgNoClaim taking two OptSpecifiers.	2014-09-12 19:42:53 +00:00
ProfileData	InstrProf: Make coverage::Counter comparable	2014-10-01 03:31:58 +00:00
Support	Move the complex address expression out of DIVariable and into an extra	2014-10-01 17:55:39 +00:00
TableGen	[TableGen] Fully resolve class-instance values before defs in multiclasses	2014-09-16 17:14:13 +00:00
Target	Split the estimate() interface into separate functions for each type. NFC.	2014-09-30 20:28:48 +00:00
Transforms	[SimplifyCFG] threshold for folding branches with common destination	2014-09-30 22:23:38 +00:00
CMakeLists.txt	Remove llvm_headers_do_not_build for the benefit of XCode and Visual Studio users.	2014-08-14 00:51:47 +00:00
InitializePasses.h	Add a new pass FunctionTargetTransformInfo. This pass serves as a	2014-09-18 00:34:14 +00:00
LinkAllIR.h
LinkAllPasses.h	Added missing blank	2014-09-10 17:52:27 +00:00
module.modulemap	Nuke MCAnalysis.	2014-09-02 22:32:20 +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
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