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Sema: fix @splat of OPV arrays

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mlugg 2025-02-01 09:46:29 +00:00
parent 58c00a829e
commit d97441d37e
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1 changed files with 6 additions and 2 deletions
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src/Sema.zig
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@ -24581,8 +24581,12 @@ fn zirSplat(sema: *Sema, block: *Block, inst: Zir.Inst.Index) CompileError!Air.I
const len = try sema.usizeCast(block, src, dest_ty.arrayLen(zcu));
// `len == 0` because `[0:s]T` always has a comptime-known splat.
if (!dest_ty.hasRuntimeBits(zcu) or len == 0) {
if (try sema.typeHasOnePossibleValue(dest_ty)) |val| {
return Air.internedToRef(val.toIntern());
}
// We also need this case because `[0:s]T` is not OPV.
if (len == 0) {
const empty_aggregate = try pt.intern(.{ .aggregate = .{
.ty = dest_ty.toIntern(),
.storage = .{ .elems = &.{} },