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Switch from tuple matching to match guards

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This commit is contained in:
Jake Goulding 2020-10-24 09:44:57 -04:00
parent 07a63e6d1f
commit c6ab758e54
1 changed files with 7 additions and 9 deletions
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16
compiler/rustc_codegen_llvm/src/va_arg.rs
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@ -173,26 +173,24 @@ pub(super) fn emit_va_arg(
// is lacking in some instances, so we should only use it as a fallback.
let target = &bx.cx.tcx.sess.target;
let arch = &bx.cx.tcx.sess.target.arch;
match (&**arch, target.options.is_like_windows) {
match &**arch {
// Windows x86
("x86", true) => {
"x86" if target.options.is_like_windows => {
emit_ptr_va_arg(bx, addr, target_ty, false, Align::from_bytes(4).unwrap(), false)
}
// Generic x86
("x86", _) => {
emit_ptr_va_arg(bx, addr, target_ty, false, Align::from_bytes(4).unwrap(), true)
}
"x86" => emit_ptr_va_arg(bx, addr, target_ty, false, Align::from_bytes(4).unwrap(), true),
// Windows AArch64
("aarch64", true) => {
"aarch64" if target.options.is_like_windows => {
emit_ptr_va_arg(bx, addr, target_ty, false, Align::from_bytes(8).unwrap(), false)
}
// iOS AArch64
("aarch64", _) if target.target_os == "ios" => {
"aarch64" if target.target_os == "ios" => {
emit_ptr_va_arg(bx, addr, target_ty, false, Align::from_bytes(8).unwrap(), true)
}
("aarch64", _) => emit_aapcs_va_arg(bx, addr, target_ty),
"aarch64" => emit_aapcs_va_arg(bx, addr, target_ty),
// Windows x86_64
("x86_64", true) => {
"x86_64" if target.options.is_like_windows => {
let target_ty_size = bx.cx.size_of(target_ty).bytes();
let indirect: bool = target_ty_size > 8 || !target_ty_size.is_power_of_two();
emit_ptr_va_arg(bx, addr, target_ty, indirect, Align::from_bytes(8).unwrap(), false)