David Blaikie 4464e33224 Recommit r212203: Don't try to construct debug LexicalScopes hierarchy for functions that do not have top level debug information. ... Reverted by Eric Christopher (Thanks!) in r212203 after Bob Wilson reported LTO issues. Duncan Exon Smith and Aditya Nandakumar helped provide a reduced reproduction, though the failure wasn't too hard to guess, and even easier with the example to confirm. The assertion that the subprogram metadata associated with an llvm::Function matches the scope data referenced by the DbgLocs on the instructions in that function is not valid under LTO. In LTO, a C++ inline function might exist in multiple CUs and the subprogram metadata nodes will refer to the same llvm::Function. In this case, depending on the order of the CUs, the first intance of the subprogram metadata may not be the one referenced by the instructions in that function and the assertion will fail. A test case (test/DebugInfo/cross-cu-linkonce-distinct.ll) is added, the assertion removed and a comment added to explain this situation. Original commit message: If a function isn't actually in a CU's subprogram list in the debug info metadata, ignore all the DebugLocs and don't try to build scopes, track variables, etc. While this is possibly a minor optimization, it's also a correctness fix for an incoming patch that will add assertions to LexicalScopes and the debug info verifier to ensure that all scope chains lead to debug info for the current function. Fix up a few test cases that had broken/incomplete debug info that could violate this constraint. Add a test case where this occurs by design (inlining a debug-info-having function in an attribute nodebug function - we want this to work because /if/ the nodebug function is then inlined into a debug-info-having function, it should be fine (and will work fine - we just stitch the scopes up as usual), but should the inlining not happen we need to not assert fail either). llvm-svn: 212649		2014-07-09 21:02:41 +00:00
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Analysis	Improve BasicAA CS-CS queries	2014-07-08 23:16:49 +00:00
AsmParser	Update the MemoryBuffer API to use ErrorOr.	2014-07-06 17:43:13 +00:00
Bitcode	Fix a bug in the conversion to ErrorOr.	2014-07-04 20:05:56 +00:00
CodeGen	Recommit r212203: Don't try to construct debug LexicalScopes hierarchy for functions that do not have top level debug information.	2014-07-09 21:02:41 +00:00
DebugInfo	Revert "Introduce a string_ostream string builder facilty"	2014-06-26 22:52:05 +00:00
ExecutionEngine	ExecutionEngine::create(): fix interpreter fallback when JIT is unavailable	2014-07-01 03:18:49 +00:00
IR	Update the MemoryBuffer API to use ErrorOr.	2014-07-06 17:43:13 +00:00
IRReader	Update the MemoryBuffer API to use ErrorOr.	2014-07-06 17:43:13 +00:00
LineEditor
Linker	Include <tuple> to make buildbots happy	2014-06-27 18:38:12 +00:00
LTO	Update the MemoryBuffer API to use ErrorOr.	2014-07-06 17:43:13 +00:00
MC	Mips.abiflags is a new implicitly generated section that will be present on all new modules. The section contains a versioned data structure which represents essentially information to allow a program loader to determine the requirements of the application. This patch implements mips.abiflags section and provides test cases for it.	2014-07-08 08:59:22 +00:00
Object	Add support for BSD format Archive map symbols (aka the table of contents	2014-07-08 22:10:02 +00:00
Option	Generic: add range-adapter for option parsing.	2014-07-09 13:03:37 +00:00
ProfileData	Update the MemoryBuffer API to use ErrorOr.	2014-07-06 17:43:13 +00:00
Support	Decouple llvm::SpecialCaseList text representation and its LLVM IR semantics.	2014-07-09 19:40:08 +00:00
TableGen	Update the MemoryBuffer API to use ErrorOr.	2014-07-06 17:43:13 +00:00
Target	AArch64: Better codegen for storing to __fp16.	2014-07-09 18:55:52 +00:00
Transforms	Decouple llvm::SpecialCaseList text representation and its LLVM IR semantics.	2014-07-09 19:40:08 +00:00
CMakeLists.txt
LLVMBuild.txt
Makefile