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llvm-6502/include/llvm/IR
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Rafael Espindola f165cf7ce8 Prevent alias from pointing to weak aliases. 
This adds back r204781.

Original message:

Aliases are just another name for a position in a file. As such, the
regular symbol resolutions are not applied. For example, given

define void @my_func() {
  ret void
}
@my_alias = alias weak void ()* @my_func
@my_alias2 = alias void ()* @my_alias

We produce without this patch:

        .weak   my_alias
my_alias = my_func
        .globl  my_alias2
my_alias2 = my_alias

That is, in the resulting ELF file my_alias, my_func and my_alias are
just 3 names pointing to offset 0 of .text. That is *not* the
semantics of IR linking. For example, linking in a

@my_alias = alias void ()* @other_func

would require the strong my_alias to override the weak one and
my_alias2 would end up pointing to other_func.

There is no way to represent that with aliases being just another
name, so the best solution seems to be to just disallow it, converting
a miscompile into an error.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204934 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-27 15:26:56 +00:00
..
Argument.h Add an inalloca flag to allocas 2014-01-17 23:58:17 +00:00
AssemblyAnnotationWriter.h Move the LLVM IR asm writer header files into the IR directory, as they 2014-01-07 12:34:26 +00:00
Attributes.h Remove copy ctors that did the same thing as the default one. 2014-03-11 11:32:49 +00:00
AutoUpgrade.h [Layering] Move AutoUpgrade.h into the IR library where its 2014-03-05 10:34:14 +00:00
BasicBlock.h Use DataLayout from the module when easily available. 2014-02-25 23:25:17 +00:00
CallingConv.h Revert r203488 and r203520. 2014-03-12 18:09:37 +00:00
CallSite.h [C++11] Add range based accessors for the Use-Def chain of a Value. 2014-03-09 03:16:01 +00:00
CFG.h [C++11] Add range based accessors for the Use-Def chain of a Value. 2014-03-09 03:16:01 +00:00
CMakeLists.txt [CMake] intrinsics_gen: Use add_public_tablegen_target(). 2014-02-20 13:42:16 +00:00
Constant.h [C++11] Add 'override' keyword to IR library. 2014-03-05 06:35:38 +00:00
ConstantFolder.h [Modules] Move the ConstantFolder into the IR library where it can 2014-03-04 12:02:47 +00:00
ConstantRange.h [Modules] Move the ConstantRange class into the IR library. This is 2014-03-04 12:24:34 +00:00
Constants.h [C++11] Add 'override' keyword to IR library. 2014-03-05 06:35:38 +00:00
DataLayout.h Add missing slash to make the doxygen output less confusing. 2014-03-25 17:20:28 +00:00
DebugInfo.h remove a bunch of unused private methods 2014-03-23 17:09:26 +00:00
DebugLoc.h [Layering] Move DebugLoc.h into the IR library. The implementation 2014-03-05 10:30:38 +00:00
DerivedTypes.h Fix the segfault reported in PR 11990. 2013-12-07 00:13:34 +00:00
DiagnosticInfo.h Use DiagnosticInfo facility. 2014-03-14 21:58:59 +00:00
DiagnosticPrinter.h [C++11] Add 'override' keyword to IR library. 2014-03-05 06:35:38 +00:00
DIBuilder.h Switch the type field in DIVariable and DIGlobalVariable over to DITypeRefs. 2014-03-18 02:34:58 +00:00
Dominators.h Fix fixme: remove unused method. 2014-03-11 09:32:50 +00:00
Function.h Add args() iteartor adapter to Function, for range-for loops. 2014-03-26 18:04:27 +00:00
GetElementPtrTypeIterator.h [Modules] Move GetElementPtrTypeIterator into the IR library. As its 2014-03-04 10:40:04 +00:00
GlobalAlias.h Prevent alias from pointing to weak aliases. 2014-03-27 15:26:56 +00:00
GlobalValue.h Remove the linker_private and linker_private_weak linkages. 2014-03-13 23:18:37 +00:00
GlobalVariable.h [C++11] Add 'override' keyword to IR library. 2014-03-05 06:35:38 +00:00
GVMaterializer.h [Layering] Move GVMaterializer.h into the IR library where its 2014-03-06 03:50:29 +00:00
InlineAsm.h Remove copy ctors that did the same thing as the default one. 2014-03-11 11:32:49 +00:00
InstIterator.h [Modules] Move InstIterator out of the Support library, where it had no 2014-03-04 10:30:26 +00:00
InstrTypes.h [C++11] Remove 'virtual' keyword from methods marked with 'override' keyword. 2014-03-10 05:29:18 +00:00
Instruction.def Add addrspacecast instruction. 2013-11-15 01:34:59 +00:00
Instruction.h [C++11] Add range based accessors for the Use-Def chain of a Value. 2014-03-09 03:16:01 +00:00
Instructions.h Fix problem with r204836 2014-03-26 20:41:15 +00:00
InstVisitor.h [Layering] Move InstVisitor.h into the IR library as it is pretty 2014-03-06 03:23:41 +00:00
IntrinsicInst.h Add some convenience accessors for the underlying Use of an operand. 2014-02-25 03:34:17 +00:00
Intrinsics.h Enable variable arguments support for intrinsics. 2013-10-31 17:18:11 +00:00
Intrinsics.td Add @llvm.clear_cache builtin 2014-03-26 12:52:28 +00:00
IntrinsicsAArch64.td AArch64: simplify tbl/tbx polymorphism 2014-02-26 11:55:09 +00:00
IntrinsicsARM.td ARM: add intrinsics for the v8 ldaex/stlex 2014-03-26 14:39:31 +00:00
IntrinsicsHexagon.td
IntrinsicsMips.td [mips][msa] Add DLSA instruction. 2014-02-10 12:05:17 +00:00
IntrinsicsNVVM.td Expose "noduplicate" attribute as a property for intrinsics. 2014-03-18 23:51:07 +00:00
IntrinsicsPowerPC.td
IntrinsicsR600.td
IntrinsicsX86.td AVX-512: masked load/store + intrinsics for them. 2014-03-13 12:05:52 +00:00
IntrinsicsXCore.td [XCore] Add intrinsic for CLRPT (clear port time) instruction. 2014-02-25 17:31:15 +00:00
IRBuilder.h IR: add a second ordering operand to cmpxhg for failure 2014-03-11 10:48:52 +00:00
IRPrintingPasses.h [PM] Fix stale header blocker, found by Duncan Smith in code review! 2014-01-14 05:50:19 +00:00
LeakDetector.h [Modules] Move the LeakDetector header into the IR library where the 2014-03-04 12:46:06 +00:00
LegacyPassManager.h [C++11] Add 'override' keyword to IR library. 2014-03-05 06:35:38 +00:00
LegacyPassManagers.h [C++11] Add 'override' keyword to IR library. 2014-03-05 06:35:38 +00:00
LegacyPassNameParser.h [C++11] Add 'override' keyword to IR library. 2014-03-05 06:35:38 +00:00
LLVMContext.h Re-sort all of the includes with ./utils/sort_includes.py so that 2014-01-07 11:48:04 +00:00
Mangler.h Add back r201608, r201622, r201624 and r201625 2014-02-19 17:23:20 +00:00
MDBuilder.h [C++11] Modernize the IR library a bit. 2014-03-10 15:03:06 +00:00
Metadata.h Remove copy ctors that did the same thing as the default one. 2014-03-11 11:32:49 +00:00
Module.h [C++11] Add range views for various parts of a Module. 2014-03-09 12:20:30 +00:00
NoFolder.h [Modules] Move the NoFolder into the IR library as it creates 2014-03-04 12:05:47 +00:00
OperandTraits.h
Operator.h [Modules] Move GetElementPtrTypeIterator into the IR library. As its 2014-03-04 10:40:04 +00:00
PassManager.h [PM] As was pointed out in review, I need to define a custom swap in 2014-03-13 10:42:18 +00:00
PatternMatch.h [Modules] Move the LLVM IR pattern match header into the IR library, it 2014-03-04 11:08:18 +00:00
PredIteratorCache.h [Modules] Move the PredIteratorCache into the IR library -- it is 2014-03-04 12:09:19 +00:00
SymbolTableListTraits.h
Type.h Re-sort all of the includes with ./utils/sort_includes.py so that 2014-01-07 11:48:04 +00:00
TypeBuilder.h
TypeFinder.h
Use.h [C++11] Sink the iterator over a Value's users into the Value type 2014-03-05 01:50:35 +00:00
User.h [C++11] Modernize the IR library a bit. 2014-03-10 15:03:06 +00:00
Value.h [C++11] Add range based accessors for the Use-Def chain of a Value. 2014-03-09 03:16:01 +00:00
ValueHandle.h [Modules] Move ValueHandle into the IR library where Value itself lives. 2014-03-04 11:17:44 +00:00
ValueMap.h [C++11] Replace LLVM-style type traits with C++11 standard ones. 2014-03-07 14:42:25 +00:00
ValueSymbolTable.h
Verifier.h [PM] Wire up the Verifier for the new pass manager and connect it to the 2014-01-20 11:34:08 +00:00