os-rust/src/test/codegen/fastcall-inreg.rs

// Checks if the "fastcall" calling convention marks function arguments
// as "inreg" like the C/C++ compilers for the platforms.
// x86 only.

// ignore-aarch64
// ignore-aarch64_be
// ignore-arm
// ignore-armeb
// ignore-avr
// ignore-bpfel
// ignore-bpfeb
// ignore-hexagon
// ignore-mips
// ignore-mips64
// ignore-msp430
// ignore-powerpc64
// ignore-powerpc64le
// ignore-powerpc
// ignore-r600
// ignore-amdgcn
// ignore-sparc
// ignore-sparc64
// ignore-sparcv9
// ignore-sparcel
// ignore-s390x
// ignore-tce
// ignore-thumb
// ignore-thumbeb
// ignore-x86_64
// ignore-xcore
// ignore-nvptx
// ignore-nvptx64
// ignore-le32
// ignore-le64
// ignore-amdil
// ignore-amdil64
// ignore-hsail
// ignore-hsail64
// ignore-spir
// ignore-spir64
// ignore-kalimba
// ignore-shave
// ignore-wasm32
// ignore-wasm64
// ignore-emscripten

// compile-flags: -C no-prepopulate-passes

#![crate_type = "lib"]

pub mod tests {
    // CHECK: @f1(i32 inreg %arg0, i32 inreg %arg1, i32 %arg2)
    #[no_mangle]
    pub extern "fastcall" fn f1(_: i32, _: i32, _: i32) {}

    // CHECK: @f2(i32* inreg %arg0, i32* inreg %arg1, i32* %arg2)
    #[no_mangle]
    pub extern "fastcall" fn f2(_: *const i32, _: *const i32, _: *const i32) {}

    // CHECK: @f3(float %arg0, i32 inreg %arg1, i32 inreg %arg2, i32 %arg3)
    #[no_mangle]
    pub extern "fastcall" fn f3(_: f32, _: i32, _: i32, _: i32) {}

    // CHECK: @f4(i32 inreg %arg0, float %arg1, i32 inreg %arg2, i32 %arg3)
    #[no_mangle]
    pub extern "fastcall" fn f4(_: i32, _: f32, _: i32, _: i32) {}

    // CHECK: @f5(i64 %arg0, i32 %arg1)
    #[no_mangle]
    pub extern "fastcall" fn f5(_: i64, _: i32) {}

    // CHECK: @f6(i1 inreg zeroext %arg0, i32 inreg %arg1, i32 %arg2)
    #[no_mangle]
    pub extern "fastcall" fn f6(_: bool, _: i32, _: i32) {}
}