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stage2: make @Vector ABI size agree with LLVM

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This commit is contained in:
Andrew Kelley 2022-07-16 16:48:47 -07:00
parent 6e313eb110
commit 4552ccb685
1 changed files with 24 additions and 2 deletions
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26
src/type.zig
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@ -3260,8 +3260,8 @@ pub const Type = extern union {
.array_u8 => return AbiSizeAdvanced{ .scalar = ty.castTag(.array_u8).?.data },
.array_u8_sentinel_0 => return AbiSizeAdvanced{ .scalar = ty.castTag(.array_u8_sentinel_0).?.data + 1 },
.array, .vector => {
const payload = ty.cast(Payload.Array).?.data;
.array => {
const payload = ty.castTag(.array).?.data;
switch (try payload.elem_type.abiSizeAdvanced(target, strat)) {
.scalar => |elem_size| return AbiSizeAdvanced{ .scalar = payload.len * elem_size },
.val => switch (strat) {
@ -3283,6 +3283,28 @@ pub const Type = extern union {
}
},
.vector => {
const payload = ty.castTag(.vector).?.data;
const sema_kit = switch (strat) {
.sema_kit => |sk| sk,
.eager => null,
.lazy => |arena| return AbiSizeAdvanced{
.val = try Value.Tag.lazy_size.create(arena, ty),
},
};
const elem_bits = try payload.elem_type.bitSizeAdvanced(target, sema_kit);
const total_bits = elem_bits * payload.len;
const total_bytes = (total_bits + 7) / 8;
const alignment = switch (try ty.abiAlignmentAdvanced(target, strat)) {
.scalar => |x| x,
.val => return AbiSizeAdvanced{
.val = try Value.Tag.lazy_size.create(strat.lazy, ty),
},
};
const result = std.mem.alignForwardGeneric(u64, total_bytes, alignment);
return AbiSizeAdvanced{ .scalar = result };
},
.isize,
.usize,
.@"anyframe",