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Disallow the use of high byte registes as operands on x86_64

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They are still allowed on x86 though.

Fixes #83495
This commit is contained in:
Amanieu d'Antras 2021-04-04 17:44:46 +01:00
parent cbd6ec7604
commit b1bcff0731
8 changed files with 25 additions and 24 deletions
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4
compiler/rustc_target/src/asm/mod.rs
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@ -90,7 +90,7 @@ macro_rules! def_regs {
match name {
$(
$($alias)|* | $reg_name => {
$($filter(_arch, &mut _has_feature, _target, false)?;)?
$($filter(_arch, &mut _has_feature, _target)?;)?
Ok(Self::$reg)
}
)*
@ -114,7 +114,7 @@ macro_rules! def_regs {
#[allow(unused_imports)]
use super::{InlineAsmReg, InlineAsmRegClass};
$(
if $($filter(_arch, &mut _has_feature, _target, true).is_ok() &&)? true {
if $($filter(_arch, &mut _has_feature, _target).is_ok() &&)? true {
if let Some(set) = _map.get_mut(&InlineAsmRegClass::$arch($arch_regclass::$class)) {
set.insert(InlineAsmReg::$arch($arch_reg::$reg));
}