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// Test the regparm ABI with builtin and non-builtin calls
// Issue: https://github.com/rust-lang/rust/issues/145271
//@ add-core-stubs
//@ assembly-output: emit-asm
//@ compile-flags: -O --target=i686-unknown-linux-gnu -Crelocation-model=static
//@ revisions: REGPARM1 REGPARM2 REGPARM3
//@[REGPARM1] compile-flags: -Zregparm=1
//@[REGPARM2] compile-flags: -Zregparm=2
//@[REGPARM3] compile-flags: -Zregparm=3
//@ needs-llvm-components: x86
#![feature(no_core)]
#![no_std]
#![no_core]
#![crate_type = "lib"]
extern crate minicore;
use minicore::*;
unsafe extern "C" {
fn memset(p: *mut c_void, val: i32, len: usize) -> *mut c_void;
fn non_builtin_memset(p: *mut c_void, val: i32, len: usize) -> *mut c_void;
}
#[unsafe(no_mangle)]
pub unsafe extern "C" fn entrypoint(len: usize, ptr: *mut c_void, val: i32) -> *mut c_void {
// REGPARM1-LABEL: entrypoint
// REGPARM1: movl %e{{.*}}, %ecx
// REGPARM1: pushl
// REGPARM1: pushl
// REGPARM1: calll memset
// REGPARM2-LABEL: entrypoint
// REGPARM2: movl 16(%esp), %edx
// REGPARM2: movl %e{{.*}}, (%esp)
// REGPARM2: movl %e{{.*}}, %eax
// REGPARM2: calll memset
// REGPARM3-LABEL: entrypoint
// REGPARM3: movl %e{{.*}}, %esi
// REGPARM3: movl %e{{.*}}, %eax
// REGPARM3: movl %e{{.*}}, %ecx
// REGPARM3: jmp memset
unsafe { memset(ptr, val, len) }
}
#[unsafe(no_mangle)]
pub unsafe extern "C" fn non_builtin_entrypoint(
len: usize,
ptr: *mut c_void,
val: i32,
) -> *mut c_void {
// REGPARM1-LABEL: non_builtin_entrypoint
// REGPARM1: movl %e{{.*}}, %ecx
// REGPARM1: pushl
// REGPARM1: pushl
// REGPARM1: calll non_builtin_memset
// REGPARM2-LABEL: non_builtin_entrypoint
// REGPARM2: movl 16(%esp), %edx
// REGPARM2: movl %e{{.*}}, (%esp)
// REGPARM2: movl %e{{.*}}, %eax
// REGPARM2: calll non_builtin_memset
// REGPARM3-LABEL: non_builtin_entrypoint
// REGPARM3: movl %e{{.*}}, %esi
// REGPARM3: movl %e{{.*}}, %eax
// REGPARM3: movl %e{{.*}}, %ecx
// REGPARM3: jmp non_builtin_memset
unsafe { non_builtin_memset(ptr, val, len) }
}
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