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Replace empty array hack with repr(align) 

As a side effect, this fixes the warning about repr(C, simd) that has been reported during x86_64 windows builds since #47111 (see also: #47103)
This commit is contained in:
Robin Kruppe 2018-01-07 20:19:51 +01:00
parent 6828cf9014
commit 9e4a692e56
2 changed files with 3 additions and 12 deletions
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1
src/libstd/lib.rs
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@ -296,7 +296,6 @@
#![feature(rand)]
#![feature(raw)]
#![feature(repr_align)]
#![feature(repr_simd)]
#![feature(rustc_attrs)]
#![feature(shared)]
#![feature(sip_hash_13)]

14
src/libstd/sys/windows/c.rs
View File

@ -20,11 +20,6 @@ use os::raw::c_ulonglong;
use libc::{wchar_t, size_t, c_void};
use ptr;
#[repr(simd)]
#[repr(C)]
#[cfg(target_arch = "x86_64")]
struct u64x2(u64, u64);
pub use self::FILE_INFO_BY_HANDLE_CLASS::*;
pub use self::EXCEPTION_DISPOSITION::*;
@ -700,9 +695,8 @@ pub struct FLOATING_SAVE_AREA {
}
#[cfg(target_arch = "x86_64")]
#[repr(C)]
#[repr(C, align(16))]
pub struct CONTEXT {
_align_hack: [u64x2; 0], // FIXME align on 16-byte
pub P1Home: DWORDLONG,
pub P2Home: DWORDLONG,
pub P3Home: DWORDLONG,
@ -760,17 +754,15 @@ pub struct CONTEXT {
}
#[cfg(target_arch = "x86_64")]
#[repr(C)]
#[repr(C, align(16))]
pub struct M128A {
_align_hack: [u64x2; 0], // FIXME align on 16-byte
pub Low: c_ulonglong,
pub High: c_longlong
}
#[cfg(target_arch = "x86_64")]
#[repr(C)]
#[repr(C, align(16))]
pub struct FLOATING_SAVE_AREA {
_align_hack: [u64x2; 0], // FIXME align on 16-byte
_Dummy: [u8; 512] // FIXME: Fill this out
}