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[Debuginfo] Force enum `DISCR_*` to `static const u64` to allow for inspection via LLDB see [here](https://rust-lang.zulipchat.com/#narrow/channel/317568-t-compiler.2Fwg-debugging/topic/Revamping.20Debuginfo/near/486614878) for more info. This change mainly helps `*-msvc` debugged with LLDB. Currently, LLDB cannot inspect `static` struct fields, so the intended visualization for enums is only borderline functional, and niche enums with ranges of discriminant cannot be determined at all . LLDB *can* inspect `static const` values (though for whatever reason, non-enum/non-u64 consts don't work). This change adds the `LLVMRustDIBuilderCreateQualifiedType` to the rust FFI layer to wrap the discr type with a `const` modifier, as well as forcing all generated integer enum `DISCR_*` values to be u64's. Those values will only ever be used by debugger visualizers anyway, so it shouldn't be a huge deal, but I left a fixme comment for it just in case.. The `tag` also still properly reflects the discriminant type, so no information is lost. |
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| back | ||
| builder | ||
| coverageinfo | ||
| debuginfo | ||
| llvm | ||
| abi.rs | ||
| allocator.rs | ||
| asm.rs | ||
| attributes.rs | ||
| base.rs | ||
| builder.rs | ||
| callee.rs | ||
| common.rs | ||
| consts.rs | ||
| context.rs | ||
| declare.rs | ||
| errors.rs | ||
| intrinsic.rs | ||
| lib.rs | ||
| llvm_util.rs | ||
| mono_item.rs | ||
| type_.rs | ||
| type_of.rs | ||
| va_arg.rs | ||
| value.rs | ||