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Sema: disable repeated aggregate storage use with mismatching sentinel

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The InternPool implementation was not written to support this, but
that could be changed and this check removed in the future.
This commit is contained in:
Jacob Young 2023-06-01 01:44:39 -04:00 committed by Andrew Kelley
parent a3b3ac0ea4
commit 0777e98bfe
1 changed files with 1 additions and 1 deletions
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src/Sema.zig
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@ -13094,7 +13094,7 @@ fn zirArrayMul(sema: *Sema, block: *Block, inst: Zir.Inst.Index) CompileError!Ai
const val = v: {
// Optimization for the common pattern of a single element repeated N times, such
// as zero-filling a byte array.
if (lhs_len == 1) {
if (lhs_len == 1 and lhs_info.sentinel == null) {
const elem_val = try lhs_sub_val.elemValue(mod, 0);
break :v try mod.intern(.{ .aggregate = .{
.ty = result_ty.toIntern(),