//@ revisions: align16 align1024 //@ compile-flags: -C no-prepopulate-passes -Z mir-opt-level=0 //@ [align16] compile-flags: -Zmin-function-alignment=16 //@ [align1024] compile-flags: -Zmin-function-alignment=1024 #![crate_type = "lib"] #![feature(fn_align)] // functions without explicit alignment use the global minimum // // CHECK-LABEL: @no_explicit_align // align16: align 16 // align1024: align 1024 #[no_mangle] pub fn no_explicit_align() {} // CHECK-LABEL: @lower_align // align16: align 16 // align1024: align 1024 #[no_mangle] #[repr(align(8))] pub fn lower_align() {} // the higher value of min-function-alignment and repr(align) wins out // // CHECK-LABEL: @higher_align // align16: align 32 // align1024: align 1024 #[no_mangle] #[repr(align(32))] pub fn higher_align() {} // cold functions follow the same rules as other functions // // in GCC, the `-falign-functions` does not apply to cold functions, but // `-Zmin-function-alignment` applies to all functions. // // CHECK-LABEL: @no_explicit_align_cold // align16: align 16 // align1024: align 1024 #[no_mangle] #[cold] pub fn no_explicit_align_cold() {}