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| author | Folkert de Vries <folkert@folkertdev.nl> | 2025-07-27 21:21:07 +0200 |
|---|---|---|
| committer | Folkert de Vries <folkert@folkertdev.nl> | 2025-09-08 13:46:28 +0200 |
| commit | 94fbb2178ae5960894aaae199233b0d3ac020d79 (patch) | |
| tree | 67f7797b8abe649ba9d01394e569f8fd17aee201 /tests/assembly-llvm/c-variadic-arm.rs | |
| parent | 418900562cb189e68b21acd49116ed8235646578 (diff) | |
| download | rust-94fbb2178ae5960894aaae199233b0d3ac020d79.tar.gz rust-94fbb2178ae5960894aaae199233b0d3ac020d79.zip | |
implement `va_arg` for arm in rustc itself
Diffstat (limited to 'tests/assembly-llvm/c-variadic-arm.rs')
| -rw-r--r-- | tests/assembly-llvm/c-variadic-arm.rs | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/tests/assembly-llvm/c-variadic-arm.rs b/tests/assembly-llvm/c-variadic-arm.rs new file mode 100644 index 00000000000..2ef307405e1 --- /dev/null +++ b/tests/assembly-llvm/c-variadic-arm.rs @@ -0,0 +1,26 @@ +//@ assembly-output: emit-asm +//@ compile-flags: -Copt-level=3 +//@ only-arm +//@ ignore-thumb +//@ ignore-android +#![no_std] +#![crate_type = "lib"] +#![feature(c_variadic)] + +// Check that the assembly that rustc generates matches what clang emits. + +#[unsafe(no_mangle)] +unsafe extern "C" fn variadic(a: f64, mut args: ...) -> f64 { + // CHECK-LABEL: variadic + // CHECK: sub sp, sp + + // CHECK: vldr + // CHECK: vadd.f64 + // CHECK: vldr + // CHECK: vadd.f64 + let b = args.arg::<f64>(); + let c = args.arg::<f64>(); + a + b + c + + // CHECK: add sp, sp +} |