David Blaikie 92f9736baf DebugInfo+DeadArgElimination: Ensure llvm::Function*s from debug info are updated even when DAE removes both varargs and non-varargs arguments on the same function. ... After some stellar (& inspired) help from Reid Kleckner providing a test case for some rather unstable undefined behavior showing up as assertions produced by r214761, I was able to fix this issue in DAE involving the application of both varargs removal, followed by normal argument removal. Indeed I introduced this same bug into ArgumentPromotion (r212128) by copying the code from DAE, and when I fixed the bug in ArgPromo (r213805) and commented in that patch that I didn't need to address the same issue in DAE because it was a single pass. Turns out it's two pass, one for the varargs and one for the normal arguments, so the same fix is needed (at least during varargs removal). So here it is. (the observable/net effect of this bug, even when it didn't result in assertion failure, is that debug info would describe the DAE'd function in the abstract, but wouldn't provide high/low_pc, variable locations, line table, etc (it would appear as though the function had been entirely optimized away), see the original PR14016 for details of the general problem) I'm not recommitting the assertion just yet, as there's been another regression of it since I last tried. It might just be a few test cases weren't adequately updated after Adrian or Duncan's recent schema changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219210 91177308-0d34-0410-b5e6-96231b3b80d8		2014-10-07 15:10:23 +00:00
..
ArgumentPromotion.cpp	DebugInfo+DeadArgElimination: Ensure llvm::Function*s from debug info are updated even when DAE removes both varargs and non-varargs arguments on the same function.	2014-10-07 15:10:23 +00:00
BarrierNoopPass.cpp	[C++11] Add 'override' keyword to virtual methods that override their base class.	2014-03-05 09:10:37 +00:00
CMakeLists.txt	Move -verify-use-list-order into llvm-uselistorder	2014-07-25 17:13:03 +00:00
ConstantMerge.cpp	Repace SmallPtrSet with SmallPtrSetImpl in function arguments to avoid needing to mention the size.	2014-08-21 05:55:13 +00:00
DeadArgumentElimination.cpp	DebugInfo+DeadArgElimination: Ensure llvm::Function*s from debug info are updated even when DAE removes both varargs and non-varargs arguments on the same function.	2014-10-07 15:10:23 +00:00
ExtractGV.cpp	GlobalValue: Assert symbols with local linkage have default visibility	2014-05-07 23:00:22 +00:00
FunctionAttrs.cpp	[optnone] Make the optnone attribute effective at suppressing function	2014-08-13 10:49:33 +00:00
GlobalDCE.cpp	GlobalDCE: Don't drop any COMDAT members	2014-10-07 07:07:19 +00:00
GlobalOpt.cpp	Use range based for loops to avoid needing to re-mention SmallPtrSet size.	2014-08-24 23:23:06 +00:00
InlineAlways.cpp	Add an Assumption-Tracking Pass	2014-09-07 12:44:26 +00:00
Inliner.cpp	Add an Assumption-Tracking Pass	2014-09-07 12:44:26 +00:00
InlineSimple.cpp	Add an Assumption-Tracking Pass	2014-09-07 12:44:26 +00:00
Internalize.cpp	Use range based for loops to avoid needing to re-mention SmallPtrSet size.	2014-08-24 23:23:06 +00:00
IPConstantPropagation.cpp	[C++] Use 'nullptr'. Transforms edition.	2014-04-25 05:29:35 +00:00
IPO.cpp	Move -verify-use-list-order into llvm-uselistorder	2014-07-25 17:13:03 +00:00
LLVMBuild.txt	Prune redundant dependencies in LLVMBuild.txt.	2013-12-11 00:30:57 +00:00
LoopExtractor.cpp	Revert "[C++11] Add predecessors(BasicBlock *) / successors(BasicBlock *) iterator ranges."	2014-07-21 17:06:51 +00:00
Makefile
MergeFunctions.cpp	MergeFunctions: FunctionPtr has been renamed to FunctionNode.	2014-09-10 10:08:25 +00:00
PartialInlining.cpp	Revert "[C++11] Add predecessors(BasicBlock *) / successors(BasicBlock *) iterator ranges."	2014-07-21 17:06:51 +00:00
PassManagerBuilder.cpp	Add control of function merging to the PMBuilder.	2014-09-13 21:46:00 +00:00
PruneEH.cpp	[C++] Use 'nullptr'. Transforms edition.	2014-04-25 05:29:35 +00:00
StripDeadPrototypes.cpp	[Modules] Fix potential ODR violations by sinking the DEBUG_TYPE	2014-04-22 02:55:47 +00:00
StripSymbols.cpp	Revert "Revert "DI: Fold constant arguments into a single MDString""	2014-10-03 20:01:09 +00:00