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Correctly implement atomic_nand_* intrinsics

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Fixes #639
This commit is contained in:
bjorn3 2019-08-01 10:58:18 +02:00
parent bc914cd43b
commit 62166ed9c8
1 changed files with 6 additions and 1 deletions
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7
src/intrinsics.rs
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@ -810,7 +810,12 @@ pub fn codegen_intrinsic_call<'a, 'tcx: 'a>(
atomic_binop_return_old! (fx, band<T>(ptr, src) -> ret); atomic_binop_return_old! (fx, band<T>(ptr, src) -> ret);
}; };
_ if intrinsic.starts_with("atomic_nand"), <T> (v ptr, v src) { _ if intrinsic.starts_with("atomic_nand"), <T> (v ptr, v src) {
atomic_binop_return_old! (fx, band_not<T>(ptr, src) -> ret); let clif_ty = fx.clif_type(T).unwrap();
let old = fx.bcx.ins().load(clif_ty, MemFlags::new(), ptr, 0);
let and = fx.bcx.ins().band(old, src);
let new = fx.bcx.ins().bnot(and);
fx.bcx.ins().store(MemFlags::new(), new, ptr, 0);
ret.write_cvalue(fx, CValue::by_val(old, fx.layout_of(T)));
}; };
_ if intrinsic.starts_with("atomic_or"), <T> (v ptr, v src) { _ if intrinsic.starts_with("atomic_or"), <T> (v ptr, v src) {
atomic_binop_return_old! (fx, bor<T>(ptr, src) -> ret); atomic_binop_return_old! (fx, bor<T>(ptr, src) -> ret);