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Merge commit '05677b6bd6c938ed760835d9b1f6514992654ae3' into sync_cg_clif-2021-08-06

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bjorn3
2021-08-06 16:26:56 +02:00
parent 1f94abcda6 05677b6bd6
commit 279f486960
40 changed files with 823 additions and 590 deletions
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19
compiler/rustc_codegen_cranelift/src/cast.rs
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@@ -14,21 +14,6 @@ pub(crate) fn clif_intcast(
(_, _) if from == to => val,
// extend
(_, types::I128) => {
let lo = if from == types::I64 {
val
} else if signed {
fx.bcx.ins().sextend(types::I64, val)
} else {
fx.bcx.ins().uextend(types::I64, val)
};
let hi = if signed {
fx.bcx.ins().sshr_imm(lo, 63)
} else {
fx.bcx.ins().iconst(types::I64, 0)
};
fx.bcx.ins().iconcat(lo, hi)
}
(_, _) if to.wider_or_equal(from) => {
if signed {
fx.bcx.ins().sextend(to, val)
@@ -38,10 +23,6 @@ pub(crate) fn clif_intcast(
}
// reduce
(types::I128, _) => {
let (lsb, _msb) = fx.bcx.ins().isplit(val);
if to == types::I64 { lsb } else { fx.bcx.ins().ireduce(to, lsb) }
}
(_, _) => fx.bcx.ins().ireduce(to, val),
}
}