rust/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp, branch 1.79.0

Auto merge of #121298 - nikic:writable, r=cuviper

2024-04-25T04:31:56+00:00

Set writable and dead_on_unwind attributes for sret arguments Set the `writable` and `dead_on_unwind` attributes for `sret` arguments. This allows call slot optimization to remove more memcpy's. See https://llvm.org/docs/LangRef.html#parameter-attributes for the specification of these attributes. In short, the statement we're making here is that: * The return slot is writable. * The return slot will not be read if the function unwinds. Fixes https://github.com/rust-lang/rust/issues/90595.

Set writable and dead_on_unwind attributes for sret arguments

2024-04-25T02:43:47+00:00

Rollup merge of #124132 - RalfJung:OpBundlesIndirect, r=Mark-Simulacrum

2024-04-20T20:45:37+00:00

llvm RustWrapper: explain OpBundlesIndirect argument type Follow-up to https://github.com/rust-lang/rust/pull/123941 r? ``@Mark-Simulacrum``

coverage. Lowering MC/DC statements to llvm-ir

2024-04-19T16:34:40+00:00

llvm RustWrapper: explain OpBundlesIndirect argument type

2024-04-18T19:43:52+00:00

Fix UB in LLVM FFI when passing zero or >1 bundle

2024-04-15T02:18:33+00:00

Rust passes a *const &OperandBundleDef to these APIs, usually from a Vec<&OperandBundleDef> or so. Previously we were dereferencing that pointer and passing it to the ArrayRef constructor with some length (N). This meant that if the length was 0, we were dereferencing a pointer to nowhere, and if the length was >1 then loading the *second* element somewhere in LLVM would've been reading past the end. Since Rust can't hold OperandBundleDef by-value we're forced to indirect through a vector that copies out the OperandBundleDefs from the by-reference list on the Rust side in order to match the LLVM expected API.

Rollup merge of #123612 - kxxt:riscv-target-abi, r=jieyouxu,nikic,DianQK

2024-04-10T02:27:40+00:00

Set target-abi module flag for RISC-V targets Fixes cross-language LTO on RISC-V targets (Fixes #121924)

Pass value and valueLen to create a StringRef

2024-04-09T06:53:11+00:00

Instead of creating a cstring. Co-authored-by: LoveSy

Set target-abi module flag for RISC-V targets

2024-04-09T03:25:51+00:00

Fixes cross-language LTO on RISC-V targets (Fixes #121924)

Remove unnecessary cast from `LLVMRustGetInstrProfIncrementIntrinsic`

2024-04-07T11:27:53+00:00

This particular cast appears to have been copied over from clang, but there are plenty of other call sites in clang that don't bother with a cast here, and it works fine without one. For context, `llvm::Intrinsic::ID` is a typedef for `unsigned`, and `llvm::Intrinsic::instrprof_increment` is a member of `enum IndependentIntrinsics : unsigned`.