Adrian Prantl 2a39c993eb Debug info: Infrastructure to support debug locations for fragmented ... variables (for example, by-value struct arguments passed in registers, or large integer values split across several smaller registers). On the IR level, this adds a new type of complex address operation OpPiece to DIVariable that describes size and offset of a variable fragment. On the DWARF emitter level, all pieces describing the same variable are collected, sorted and emitted as DWARF expressions using the DW_OP_piece and DW_OP_bit_piece operators. http://reviews.llvm.org/D3373 rdar://problem/15928306 What this patch doesn't do / Future work: - This patch only adds the backend machinery to make this work, patches that change SROA and SelectionDAG's type legalizer to actually create such debug info will follow. (http://reviews.llvm.org/D2680) - Making the DIVariable complex expressions into an argument of dbg.value will reduce the memory footprint of the debug metadata. - The sorting/uniquing of pieces should be moved into DebugLocEntry, to facilitate the merging of multi-piece entries. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214576 91177308-0d34-0410-b5e6-96231b3b80d8		2014-08-01 22:11:58 +00:00
..
Analysis
AsmParser
Bitcode	BitcodeReader: Change mechanics of BlockAddress forward references, NFC	2014-08-01 21:51:52 +00:00
CodeGen	Debug info: Infrastructure to support debug locations for fragmented	2014-08-01 22:11:58 +00:00
DebugInfo
ExecutionEngine	Include Archive.h	2014-08-01 19:28:15 +00:00
IR	Debug info: Infrastructure to support debug locations for fragmented	2014-08-01 22:11:58 +00:00
IRReader
LineEditor
Linker
LTO
MC
Object
Option
ProfileData
Support
TableGen
Target	[SDAG] MorphNodeTo recursively deletes dead operands of the old	2014-08-01 22:09:43 +00:00
Transforms	[dfsan] Correctly handle loads and stores of zero size.	2014-08-01 21:18:18 +00:00
CMakeLists.txt
LLVMBuild.txt
Makefile