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Jed Davis
d90830221e
Closes #8506. The `trans::adt` code for statics uses fields with `C_undef` values to insert alignment padding (because LLVM's own alignment padding isn't always sufficient for aggregate constants), and assumes that all fields in the actual Rust value are represented by non-undef LLVM values, to distinguish them from that padding. But for nullable pointer enums, if non-null variant has fields other than the pointer used as the discriminant, they would be set to undef in the null case, to reflect that they're never accessed. To avoid the obvious conflict between these two items, the latter undefs were wrapped in unary LLVM structs to distinguish them from the former undefs. Except this doesn't actually work -- LLVM, not unreasonably, treats the "wrapped undef" as a regular undef. So this commit just sets all fields to null in the null pointer case of a nullable pointer enum static, because the other fields don't really need to be undef in the first place.
This is a preliminary version of the Rust compiler, libraries and tools.
Source layout:
| Path | Description |
|---|---|
librustc/ |
The self-hosted compiler |
libstd/ |
The standard library (imported and linked by default) |
libextra/ |
The "extras" library (slightly more peripheral code) |
libgreen/ |
The M:N runtime library |
libnative/ |
The 1:1 runtime library |
libsyntax/ |
The Rust parser and pretty-printer |
libcollections/ |
A collection of useful data structures and containers |
libnum/ |
Extended number support library (complex, rational, etc) |
libtest/ |
Rust's test-runner code |
| ------------------- | --------------------------------------------------------- |
libarena/ |
The arena (a fast but limited) memory allocator |
libflate/ |
Simple compression library |
libfourcc/ |
Data format identifier library |
libgetopts/ |
Get command-line-options library |
libglob/ |
Unix glob patterns library |
libsemver/ |
Rust's semantic versioning library |
libserialize/ |
Encode-Decode types library |
libsync/ |
Concurrency mechanisms and primitives |
libterm/ |
ANSI color library for terminals |
libtime/ |
Time operations library |
libuuid/ |
UUID's handling code |
| ------------------- | --------------------------------------------------------- |
rt/ |
The runtime system |
rt/rust_*.c |
- Some of the runtime services |
rt/vg |
- Valgrind headers |
rt/msvc |
- MSVC support |
rt/sundown |
- The Markdown library used by rustdoc |
| ------------------- | --------------------------------------------------------- |
compiletest/ |
The test runner |
test/ |
Testsuite |
test/codegen |
- Tests for the LLVM IR infrastructure |
test/compile-fail |
- Tests that should fail to compile |
test/debug-info |
- Tests for the debuginfo tool |
test/run-fail |
- Tests that should compile, run and fail |
test/run-make |
- Tests that depend on a Makefile infrastructure |
test/run-pass |
- Tests that should compile, run and succeed |
test/bench |
- Benchmarks and miscellaneous |
test/pretty |
- Pretty-printer tests |
test/auxiliary |
- Dependencies of tests |
| ------------------- | --------------------------------------------------------- |
librustdoc/ |
The Rust API documentation tool |
libuv/ |
The libuv submodule |
librustuv/ |
Rust libuv support code |
| ------------------- | --------------------------------------------------------- |
llvm/ |
The LLVM submodule |
rustllvm/ |
LLVM support code |
| ------------------- | --------------------------------------------------------- |
etc/ |
Scripts, editors support, misc |
NOTE: This list (especially the second part of the table which contains modules and libraries) is highly volatile and subject to change.