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Fixes sparc64 cabi fixes.

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Argument up to 16 bytes size is provided in registers.
Return value up to 32 bytes size is stored in registers.

Fixes: #46679
This commit is contained in:
Petr Sumbera 2018-01-18 04:26:01 -08:00
parent 0f9c784751
commit f4bcfc5317
1 changed files with 7 additions and 2 deletions
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9
src/librustc_trans/cabi_sparc64.rs
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@ -24,7 +24,7 @@ fn is_homogeneous_aggregate<'a, 'tcx>(cx: &CodegenCx<'a, 'tcx>, arg: &mut ArgTyp
let valid_unit = match unit.kind { let valid_unit = match unit.kind {
RegKind::Integer => false, RegKind::Integer => false,
RegKind::Float => true, RegKind::Float => true,
RegKind::Vector => arg.layout.size.bits() == 128 RegKind::Vector => arg.layout.size.bits() == 256
}; };
if valid_unit { if valid_unit {
@ -50,7 +50,7 @@ fn classify_ret_ty<'a, 'tcx>(cx: &CodegenCx<'a, 'tcx>, ret: &mut ArgType<'tcx>)
} }
let size = ret.layout.size; let size = ret.layout.size;
let bits = size.bits(); let bits = size.bits();
if bits <= 128 { if bits <= 256 {
let unit = if bits <= 8 { let unit = if bits <= 8 {
Reg::i8() Reg::i8()
} else if bits <= 16 { } else if bits <= 16 {
@ -84,6 +84,11 @@ fn classify_arg_ty<'a, 'tcx>(cx: &CodegenCx<'a, 'tcx>, arg: &mut ArgType<'tcx>)
} }
let total = arg.layout.size; let total = arg.layout.size;
if total.bits() > 128 {
arg.make_indirect(cx);
return;
}
arg.cast_to(Uniform { arg.cast_to(Uniform {
unit: Reg::i64(), unit: Reg::i64(),
total total