Peter Collingbourne 02296e214b IR: Introduce llvm.type.checked.load intrinsic. ...

This intrinsic safely loads a function pointer from a virtual table pointer
using type metadata. This intrinsic is used to implement control flow integrity
in conjunction with virtual call optimization. The virtual call optimization
pass will optimize away llvm.type.checked.load intrinsics associated with
devirtualized calls, thereby removing the type check in cases where it is
not needed to enforce the control flow integrity constraint.

This patch also introduces the capability to copy type metadata between
global variables, and teaches the virtual call optimization pass to do so.

Differential Revision: http://reviews.llvm.org/D21121

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@273756 91177308-0d34-0410-b5e6-96231b3b80d8

2016-06-25 00:23:04 +00:00

..

ArgumentPromotion.cpp

Remove the ScalarReplAggregates pass

2016-06-15 00:19:09 +00:00

BarrierNoopPass.cpp

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

CMakeLists.txt

IR: New representation for CFI and virtual call optimization pass metadata.

2016-06-24 21:21:32 +00:00

ConstantMerge.cpp

[PM] Remove support for omitting the AnalysisManager argument to new

2016-06-17 00:11:01 +00:00

CrossDSOCFI.cpp

Fix unused variable warning in -asserts builds.

2016-06-24 21:37:11 +00:00

DeadArgumentElimination.cpp

[PM] Remove support for omitting the AnalysisManager argument to new

2016-06-17 00:11:01 +00:00

ElimAvailExtern.cpp

[PM] Remove support for omitting the AnalysisManager argument to new

2016-06-17 00:11:01 +00:00

ExtractGV.cpp

Re-commit optimization bisect support (r267022) without new pass manager support.

2016-04-22 22:06:11 +00:00

ForceFunctionAttrs.cpp

[PM] Remove support for omitting the AnalysisManager argument to new

2016-06-17 00:11:01 +00:00

FunctionAttrs.cpp

[PM] Port ReversePostOrderFunctionAttrs to the new PM

2016-06-12 07:48:51 +00:00

FunctionImport.cpp

Apply another batch of fixes from clang-tidy's performance-unnecessary-value-param.

2016-06-17 20:41:14 +00:00

GlobalDCE.cpp

IR: Introduce Module::global_objects().

2016-06-22 20:29:42 +00:00

GlobalOpt.cpp

IR: Introduce local_unnamed_addr attribute.

2016-06-14 21:01:22 +00:00

InferFunctionAttrs.cpp

[TLI] Unify LibFunc attribute inference. NFCI.

2016-04-27 19:04:40 +00:00

InlineAlways.cpp

Use ProfileSummaryInfo in inline cost analysis.

2016-06-09 22:23:21 +00:00

Inliner.cpp

Use ProfileSummaryInfo in inline cost analysis.

2016-06-09 22:23:21 +00:00

InlineSimple.cpp

Use ProfileSummaryInfo in inline cost analysis.

2016-06-09 22:23:21 +00:00

Internalize.cpp

PM: Port Internalize to the new pass manager

2016-04-26 20:15:52 +00:00

IPConstantPropagation.cpp

[IPO/IPCP] Convert to use static functions. NFC.

2016-05-03 20:08:24 +00:00

IPO.cpp

IR: New representation for CFI and virtual call optimization pass metadata.

2016-06-24 21:21:32 +00:00

LLVMBuild.txt

[PGO] Passmanagerbuilder change that enable IR level PGO instrumentation

2016-01-21 18:28:59 +00:00

LoopExtractor.cpp

Re-commit optimization bisect support (r267022) without new pass manager support.

2016-04-22 22:06:11 +00:00

LowerTypeTests.cpp

IR: New representation for CFI and virtual call optimization pass metadata.

2016-06-24 21:21:32 +00:00

MergeFunctions.cpp

IR: Introduce local_unnamed_addr attribute.

2016-06-14 21:01:22 +00:00

PartialInlining.cpp

Cloning: Clean up the interface to the CloneFunction function.

2016-05-10 20:23:24 +00:00

PassManagerBuilder.cpp

IR: New representation for CFI and virtual call optimization pass metadata.

2016-06-24 21:21:32 +00:00

PruneEH.cpp

Re-commit optimization bisect support (r267022) without new pass manager support.

2016-04-22 22:06:11 +00:00

SampleProfile.cpp

Hookup ProfileSummary with SampleProfilerLoader

2016-06-24 22:57:06 +00:00

StripDeadPrototypes.cpp

[PM] Remove support for omitting the AnalysisManager argument to new

2016-06-17 00:11:01 +00:00

StripSymbols.cpp

Re-commit optimization bisect support (r267022) without new pass manager support.

2016-04-22 22:06:11 +00:00

WholeProgramDevirt.cpp

IR: Introduce llvm.type.checked.load intrinsic.

2016-06-25 00:23:04 +00:00