| Issue |
102783
|
| Summary |
LLVM data layout for `i128` doesn't match Clang's alignment of `__int128_t` on 64-bit PowerPC, 64-bit SPARC and 64-bit MIPS
|
| Labels |
clang
|
| Assignees |
|
| Reporter |
beetrees
|
On 64-bit PowerPC, 64-bit SPARC and 64-bit MIPS, Clang gives `__int128_t` an alignment of 16 whereas the LLVM data layout (implicitly) gives `i128` an alignment of 8. This means that LLVM-based compilers that use the LLVM data layout alignment directly (such as `rustc`) are ABI incompatible with Clang itself. This is the same as a previous bug on x86-64 that was fixed in [https://reviews.llvm.org/D86310](D86310), just on different targets.
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