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| author | Guillaume Gomez <guillaume1.gomez@gmail.com> | 2025-07-21 14:34:12 +0200 |
|---|---|---|
| committer | Guillaume Gomez <guillaume1.gomez@gmail.com> | 2025-07-22 14:28:48 +0200 |
| commit | a27f3e3fd1e4d16160f8885b6b06665b5319f56c (patch) | |
| tree | b033935392cbadf6f85d2dbddf433a88e323aeeb /tests/codegen-llvm/cffi/c-variadic-copy.rs | |
| parent | ed93c1783b404d728d4809973a0550eb33cd293f (diff) | |
| download | rust-a27f3e3fd1e4d16160f8885b6b06665b5319f56c.tar.gz rust-a27f3e3fd1e4d16160f8885b6b06665b5319f56c.zip | |
Rename `tests/codegen` into `tests/codegen-llvm`
Diffstat (limited to 'tests/codegen-llvm/cffi/c-variadic-copy.rs')
| -rw-r--r-- | tests/codegen-llvm/cffi/c-variadic-copy.rs | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/tests/codegen-llvm/cffi/c-variadic-copy.rs b/tests/codegen-llvm/cffi/c-variadic-copy.rs new file mode 100644 index 00000000000..4c61c4fcf68 --- /dev/null +++ b/tests/codegen-llvm/cffi/c-variadic-copy.rs @@ -0,0 +1,16 @@ +// Tests that `VaListImpl::clone` gets inlined into a call to `llvm.va_copy` + +#![crate_type = "lib"] +#![feature(c_variadic)] +#![no_std] +use core::ffi::VaList; + +extern "C" { + fn foreign_c_variadic_1(_: VaList, ...); +} + +pub unsafe extern "C" fn clone_variadic(ap: VaList) { + let mut ap2 = ap.clone(); + // CHECK: call void @llvm.va_copy + foreign_c_variadic_1(ap2.as_va_list(), 42i32); +} |