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x86_64: fix sysv vector argument passing

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This commit is contained in:
Jacob Young 2023-05-15 00:06:36 -04:00
parent 77a8cb5728
commit 42d9789f46
1 changed files with 2 additions and 28 deletions
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30
src/arch/x86_64/abi.zig
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@ -165,34 +165,6 @@ pub fn classifySystemV(ty: Type, target: Target, ctx: Context) [8]Class {
},
.Vector => {
const elem_ty = ty.childType();
if (ctx == .arg) {
const bit_size = ty.bitSize(target);
if (bit_size > 128) {
const has_avx512 = target.cpu.features.isEnabled(@enumToInt(std.Target.x86.Feature.avx512f));
if (has_avx512 and bit_size <= 512) return .{
.integer, .integer, .integer, .integer,
.integer, .integer, .integer, .integer,
};
const has_avx = target.cpu.features.isEnabled(@enumToInt(std.Target.x86.Feature.avx));
if (has_avx and bit_size <= 256) return .{
.integer, .integer, .integer, .integer,
.none, .none, .none, .none,
};
return memory_class;
}
if (bit_size > 80) return .{
.integer, .integer, .none, .none,
.none, .none, .none, .none,
};
if (bit_size > 64) return .{
.x87, .none, .none, .none,
.none, .none, .none, .none,
};
return .{
.integer, .none, .none, .none,
.none, .none, .none, .none,
};
}
const bits = elem_ty.bitSize(target) * ty.arrayLen();
if (bits <= 64) return .{
.sse, .none, .none, .none,
@ -202,6 +174,7 @@ pub fn classifySystemV(ty: Type, target: Target, ctx: Context) [8]Class {
.sse, .sseup, .none, .none,
.none, .none, .none, .none,
};
if (ctx == .arg and !std.Target.x86.featureSetHas(target.cpu.features, .avx)) return memory_class;
if (bits <= 192) return .{
.sse, .sseup, .sseup, .none,
.none, .none, .none, .none,
@ -210,6 +183,7 @@ pub fn classifySystemV(ty: Type, target: Target, ctx: Context) [8]Class {
.sse, .sseup, .sseup, .sseup,
.none, .none, .none, .none,
};
if (ctx == .arg and !std.Target.x86.featureSetHas(target.cpu.features, .avx512f)) return memory_class;
if (bits <= 320) return .{
.sse, .sseup, .sseup, .sseup,
.sseup, .none, .none, .none,