Duncan Sands 6590b0457c There is an impedance matching problem between LLVM and ... gcc exception handling: if an exception unwinds through an invoke, then execution must branch to the invoke's unwind target. We previously tried to enforce this by appending a cleanup action to every selector, however this does not always work correctly due to an optimization in the C++ unwinding runtime: if only cleanups would be run while unwinding an exception, then the program just terminates without actually executing the cleanups, as invoke semantics would require. I was hoping this wouldn't be a problem, but in fact it turns out to be the cause of all the remaining failures in the LLVM testsuite (these also fail with -enable-correct-eh-support, so turning on -enable-eh didn't make things worse!). Instead we need to append a full-blown catch-all to the end of each selector. The correct way of doing this depends on the personality function, i.e. it is language dependent, so can only be done by gcc. Thus this patch which generalizes the eh.selector intrinsic so that it can handle all possible kinds of action table entries (before it didn't accomodate cleanups): now 0 indicates a cleanup, and filters have to be specified using the number of type infos plus one rather than the number of type infos. Related gcc patches will cause Ada to pass a cleanup (0) to force the selector to always fire, while C++ will use a C++ catch-all (null). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41484 91177308-0d34-0410-b5e6-96231b3b80d8		2007-08-27 15:47:50 +00:00
..
AsmPrinter.h	Fix minor doxygen nits.	2007-08-05 20:06:04 +00:00
CallingConvLower.h	propagate struct size and alignment of byval arguments to the DAG	2007-08-10 14:44:42 +00:00
DwarfWriter.h	Landing pad-less eh for PPC.	2007-01-29 18:51:14 +00:00
ELFRelocation.h	Implement review feedback.	2007-04-30 23:54:10 +00:00
FileWriters.h	Fixed comments.	2007-02-08 06:05:08 +00:00
IntrinsicLowering.h	Add explicit keywords.	2007-07-05 20:40:15 +00:00
LinkAllCodegenComponents.h	check in the BigBlock local register allocator	2007-06-22 08:27:12 +00:00
LiveInterval.h	Add explicit keywords and remove spurious trailing semicolons.	2007-08-27 14:50:10 +00:00
LiveIntervalAnalysis.h	Re-implement trivial rematerialization. This allows def MIs whose live intervals that are coalesced to be rematerialized.	2007-08-13 23:45:17 +00:00
LiveVariables.h	Don't assume that only Uses can be kills. Defs are marked as kills initially	2007-07-20 23:17:34 +00:00
MachineBasicBlock.h	Fix misue of iterator pointing to erased object. Uncovered by	2007-06-29 02:45:24 +00:00
MachineCodeEmitter.h	Allow target to specify alignment for function stub.	2006-11-16 20:04:54 +00:00
MachineConstantPool.h	Add explicit keywords and remove spurious trailing semicolons.	2007-08-27 14:50:10 +00:00
MachineFrameInfo.h	Fix prolific source of 'possible loss of data' warnings.	2007-04-27 14:43:05 +00:00
MachineFunction.h	Add explicit keywords and remove spurious trailing semicolons.	2007-08-27 14:50:10 +00:00
MachineFunctionPass.h	Make MachineFunctionPass::runOnFunction non-virtual. Subclasses override	2007-07-05 20:39:35 +00:00
MachineInstr.h	Remove subreg index from MachineInstr's and also keep vregs as unsigned when adding operands.	2007-07-26 07:00:46 +00:00
MachineInstrBuilder.h	Fix 80 col violation.	2007-07-26 07:03:08 +00:00
MachineJumpTableInfo.h	Add the 'explicit' keyword to several constructors that accept one	2007-03-23 18:44:11 +00:00
MachineLocation.h	Add the 'explicit' keyword to several constructors that accept one	2007-03-23 18:44:11 +00:00
MachineModuleInfo.h	There is an impedance matching problem between LLVM and	2007-08-27 15:47:50 +00:00
MachinePassRegistry.h	switch the sched unit map over to use a DenseMap instead of std::map. This	2007-02-03 01:34:13 +00:00
MachineRelocation.h	Make enum-valued bitfield large enough to avoid interpretation as negative values in VC++.	2007-04-21 16:29:37 +00:00
MachORelocation.h	New file for the MachORelocation structure. It doesn't have to be tied to the	2007-02-03 02:36:17 +00:00
Passes.h	Implement review feedback. No functionality change.	2007-08-06 16:33:56 +00:00
RegAllocRegistry.h	Breaking out specialized classes.	2006-08-02 12:27:50 +00:00
RegisterScavenging.h	Add explicit keywords and remove spurious trailing semicolons.	2007-08-27 14:50:10 +00:00
RuntimeLibcalls.h	Added O_F32 and O_64 in addition to UO_F32 and UO_64 even though by	2007-01-31 09:26:31 +00:00
SchedGraphCommon.h	Added an automatic cast to "std::ostream*" etc. from OStream. We then can	2006-12-17 05:15:13 +00:00
ScheduleDAG.h	Instead of adding copyfromreg's to handle physical definitions. Now isel can	2007-08-02 00:28:15 +00:00
SchedulerRegistry.h	Breaking out specialized classes.	2006-08-02 12:27:50 +00:00
SelectionDAG.h	Generalize MVT::ValueType and associated functions to be able to represent	2007-06-25 16:23:39 +00:00
SelectionDAGISel.h	Add explicit keywords and remove spurious trailing semicolons.	2007-08-27 14:50:10 +00:00
SelectionDAGNodes.h	Revise per review comments.	2007-08-26 01:18:27 +00:00
SimpleRegisterCoalescing.h	Add explicit keywords and remove spurious trailing semicolons.	2007-08-27 14:50:10 +00:00
SSARegMap.h	rename DenseMap to IndexedMap.	2007-02-01 05:32:05 +00:00
ValueTypes.h	Add MVT::fAny for overloading intrinsics on floating-point types.	2007-08-16 21:57:19 +00:00
ValueTypes.td	Add MVT::fAny for overloading intrinsics on floating-point types.	2007-08-16 21:57:19 +00:00