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David Blaikie 9408f5282e DebugInfo: Ensure that all debug location scope chains from instructions within a function, lead to the function itself. 
Originally committed in r211723, reverted in r211724 due to failure
cases found and fixed (ArgumentPromotion: r211872, Inlining: r212065),
committed again in r212085 and reverted again in r212089 after fixing
some other cases, such as debug info subprogram lists not keeping track
of the function they represent (r212128) and then short-circuiting
things like LiveDebugVariables that build LexicalScopes for functions
that might not have full debug info.

And again, I believe the invariant actually holds for some reasonable
amount of code (but I'll keep an eye on the buildbots and see what
happens... ).

Original commit message:

PR20038: DebugInfo: Inlined call sites where the caller has debug info
but the call itself has no debug location.

This situation does bad things when inlined, so I've fixed Clang not to
produce inlinable call sites without locations when the caller has debug
info (in the one case where I could find that this occurred). This
updates the PR20038 test case to be what clang now produces, and readds
the assertion that had to be removed due to this bug.

I've also beefed up the debug info verifier to help diagnose these
issues in the future, and I hope to add checks to the inliner to just
assert-fail if it encounters this situation. If, in the future, we
decide we have to cope with this situation, the right thing to do is
probably to just remove all the DebugLocs from the inlined instructions.

llvm-svn: 212205
 		2014-07-02 18:32:05 +00:00
..
AsmWriter.cpp IR: Add COMDATs to the IR 2014-06-27 18:19:56 +00:00
AsmWriter.h IR: Add COMDATs to the IR 2014-06-27 18:19:56 +00:00
AttributeImpl.h [C++11] Add 'override' keyword to IR library. 2014-03-05 06:35:38 +00:00
Attributes.cpp Add a new attribute called 'jumptable' that creates jump-instruction tables for functions marked with this attribute. 2014-06-05 19:29:43 +00:00
AutoUpgrade.cpp Rename loop unrolling and loop vectorizer metadata to have a common prefix. 2014-06-25 15:41:00 +00:00
BasicBlock.cpp [C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr. 2014-04-15 06:32:26 +00:00
CMakeLists.txt IR: Add COMDATs to the IR 2014-06-27 18:19:56 +00:00
Comdat.cpp IR: Add COMDATs to the IR 2014-06-27 18:19:56 +00:00
ConstantFold.cpp Canonicalize addrspacecast ConstExpr between different pointer types 2014-06-15 21:40:57 +00:00
ConstantFold.h
…
ConstantRange.cpp [Modules] Move the ConstantRange class into the IR library. This is 2014-03-04 12:24:34 +00:00
Constants.cpp InstCombine: Don't turn -(x/INT_MIN) -> x/INT_MIN 2014-07-02 06:07:09 +00:00
ConstantsContext.h Try to fix the msvc build. 2014-04-29 23:37:02 +00:00
Core.cpp Re-apply r211287: Remove support for LLVM runtime multi-threading. 2014-06-27 15:13:01 +00:00
DIBuilder.cpp Debug info: split out complex DIVariable address expressions into a 2014-06-30 17:17:35 +00:00
DataLayout.cpp Revert "Introduce a string_ostream string builder facilty" 2014-06-26 22:52:05 +00:00
DebugInfo.cpp DebugInfo: Ensure that all debug location scope chains from instructions within a function, lead to the function itself. 2014-07-02 18:32:05 +00:00
DebugLoc.cpp Add missing const specifier to a const method. 2014-06-05 14:32:15 +00:00
DiagnosticInfo.cpp Simply test for available locations in optimization remarks. 2014-06-18 18:46:58 +00:00
DiagnosticPrinter.cpp Report a warning when dropping outdated debug info metadata. 2014-01-16 01:51:12 +00:00
Dominators.cpp [Modules] Move CFG.h to the IR library as it defines graph traits over 2014-03-04 11:45:46 +00:00
Function.cpp Add 'nonnull', a new parameter and return attribute which indicates that the pointer is not null. Instcombine will elide comparisons between these and null. Patch by Luqman Aden! 2014-05-20 01:23:40 +00:00
GCOV.cpp Remove 'using std::errro_code' from lib. 2014-06-13 02:24:39 +00:00
GVMaterializer.cpp [Layering] Move GVMaterializer.h into the IR library where its 2014-03-06 03:50:29 +00:00
Globals.cpp IR: Add COMDATs to the IR 2014-06-27 18:19:56 +00:00
IRBuilder.cpp
…
IRPrintingPasses.cpp Fix some misplaced spaces around 'override' 2014-05-24 20:19:40 +00:00
InlineAsm.cpp [C++11] More 'nullptr' conversion or in some cases just using a boolean check instead of comparing to nullptr. 2014-04-09 06:08:46 +00:00
Instruction.cpp IR: add "cmpxchg weak" variant to support permitted failure. 2014-06-13 14:24:07 +00:00
Instructions.cpp IR: add "cmpxchg weak" variant to support permitted failure. 2014-06-13 14:24:07 +00:00
IntrinsicInst.cpp [C++11] More 'nullptr' conversion or in some cases just using a boolean check instead of comparing to nullptr. 2014-04-09 06:08:46 +00:00
LLVMBuild.txt
…
LLVMContext.cpp Revert "Introduce a string_ostream string builder facilty" 2014-06-26 22:52:05 +00:00
LLVMContextImpl.cpp Remove LLVMContextImpl::optimizationRemarkEnabledFor. 2014-05-22 17:19:01 +00:00
LLVMContextImpl.h Remove LLVMContextImpl::optimizationRemarkEnabledFor. 2014-05-22 17:19:01 +00:00
LeakDetector.cpp [Modules] Move the LeakDetector header into the IR library where the 2014-03-04 12:46:06 +00:00
LeaksContext.h [C++] Use 'nullptr'. 2014-04-28 04:05:08 +00:00
LegacyPassManager.cpp Add C API for thread yielding callback. 2014-05-16 02:33:15 +00:00
MDBuilder.cpp [C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr. 2014-04-15 06:32:26 +00:00
Makefile Actually update the CMake and Makefile builds correctly, and update the 2013-01-02 12:09:16 +00:00
Mangler.cpp [C++11] More 'nullptr' conversion or in some cases just using a boolean check instead of comparing to nullptr. 2014-04-09 06:08:46 +00:00
Metadata.cpp The count() function for STL datatypes returns unsigned, even where it's 2014-06-20 10:26:56 +00:00
Module.cpp IR: Add COMDATs to the IR 2014-06-27 18:19:56 +00:00
Pass.cpp Remove pimpl class from PassRegistry. 2014-06-12 16:06:51 +00:00
PassManager.cpp Add C API for thread yielding callback. 2014-05-16 02:33:15 +00:00
PassRegistry.cpp Remove pimpl class from PassRegistry. 2014-06-12 16:06:51 +00:00
SymbolTableListTraitsImpl.h [C++] Use 'nullptr'. 2014-04-28 04:05:08 +00:00
Type.cpp [C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr. 2014-04-15 06:32:26 +00:00
TypeFinder.cpp TypeFinder: prefer iterative algorithm to keep stack usage low. 2013-10-16 04:10:06 +00:00
Use.cpp Fix some doc and comment typos 2014-04-09 14:47:27 +00:00
User.cpp Disable Visual C++ warning 4722 about aborting a destructor, 2014-03-25 08:42:49 +00:00
Value.cpp Convert StringMapEntry::Create to use StringRef instead of start/end pointers. Simpliies all in tree call sites. No functional change. 2014-06-11 05:35:56 +00:00
ValueSymbolTable.cpp [Modules] Remove potential ODR violations by sinking the DEBUG_TYPE 2014-04-22 02:02:50 +00:00
ValueTypes.cpp Add v4f16 to supported value types. 2013-10-03 03:29:21 +00:00
Verifier.cpp Verifier: Update assert message to reflect LangRef 2014-06-28 06:24:49 +00:00
module.modulemap [modules] Add module maps for LLVM. These are not quite ready for prime-time 2014-05-21 02:46:14 +00:00