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debuginfo: Define int/float types in terms of MSVC-recognized types.

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PDB debug information doesn't appear to be emitted for basic types.
By defining u32 as a typedef for unsigned __int32 when targeting MSVC,
we allow CDB and other debuggers to recognize "u32" as a type/expression.

This in turn unblocks rust-lang#70052 "Update hashbrown to 0.8.0" by
allowing $T1 ..= $T3 to resolve, which would otherwise fail to resolve
when builtin types fail to parse.
This commit is contained in:
MaulingMonkey 2020-06-24 23:28:00 -07:00
parent f8eb81ba4e
commit 24a728a8eb
3 changed files with 89 additions and 1 deletions
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8
src/rustllvm/RustWrapper.cpp
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@ -759,6 +759,14 @@ extern "C" LLVMMetadataRef LLVMRustDIBuilderCreateBasicType(
return wrap(Builder->createBasicType(StringRef(Name, NameLen), SizeInBits, Encoding));
}
extern "C" LLVMMetadataRef LLVMRustDIBuilderCreateTypedef(
LLVMRustDIBuilderRef Builder, LLVMMetadataRef Type, const char *Name, size_t NameLen,
LLVMMetadataRef File, unsigned LineNo, LLVMMetadataRef Scope) {
return wrap(Builder->createTypedef(
unwrap<DIType>(Type), StringRef(Name, NameLen), unwrap<DIFile>(File),
LineNo, unwrap<DIScope>(Scope)));
}
extern "C" LLVMMetadataRef LLVMRustDIBuilderCreatePointerType(
LLVMRustDIBuilderRef Builder, LLVMMetadataRef PointeeTy,
uint64_t SizeInBits, uint32_t AlignInBits, unsigned AddressSpace,