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In Rust, a trait can be implemented for any type, and if a trait object pointer is used for the type, then a virtual table will be emitted for that trait/type combination. We would like debuggers to be able to inspect trait objects, which requires finding the concrete type associated with a given vtable. This patch changes LLVM so that any type can be passed to replaceVTableHolder. This allows the Rust compiler to emit the needed debug info -- associating a vtable with the concrete type for which it was emitted. This is a DWARF extension: DWARF only specifies the meaning of DW_AT_containing_type in one specific situation. This style of DWARF extension is routine, though, and LLVM already has one such case for DW_AT_containing_type. Patch by Tom Tromey! Differential Revision: https://reviews.llvm.org/D39503 llvm-svn: 317730 |
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.. | ||
AsmWriterTest.cpp | ||
AttributesTest.cpp | ||
BasicBlockTest.cpp | ||
CFGBuilder.cpp | ||
CFGBuilder.h | ||
CMakeLists.txt | ||
ConstantRangeTest.cpp | ||
ConstantsTest.cpp | ||
DebugInfoTest.cpp | ||
DebugTypeODRUniquingTest.cpp | ||
DominatorTreeBatchUpdatesTest.cpp | ||
DominatorTreeTest.cpp | ||
FunctionTest.cpp | ||
InstructionsTest.cpp | ||
IntrinsicsTest.cpp | ||
IRBuilderTest.cpp | ||
LegacyPassManagerTest.cpp | ||
MDBuilderTest.cpp | ||
MetadataTest.cpp | ||
ModuleTest.cpp | ||
PassBuilderCallbacksTest.cpp | ||
PassManagerTest.cpp | ||
PatternMatch.cpp | ||
TypeBuilderTest.cpp | ||
TypesTest.cpp | ||
UserTest.cpp | ||
UseTest.cpp | ||
ValueHandleTest.cpp | ||
ValueMapTest.cpp | ||
ValueTest.cpp | ||
VerifierTest.cpp | ||
WaymarkTest.cpp |