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add pow2 guard on interleave

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kalsprite
2026-08-15 21:18:36 -07:00
parent e699d2185e
commit b2f2b653c5
1 changed files with 6 additions and 0 deletions
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6
src/check_builtin.cpp
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@@ -1920,6 +1920,12 @@ gb_internal bool check_builtin_simd_operation(CheckerContext *c, Operand *operan
error(ce->proc, "'%.*s' exceeds the maximum #simd count %lld, got %lld", LIT(builtin_name), cast(long long)max_count, cast(long long)count);
return false;
}
// the lane count is the operand width times the argument count, so it is a power
// of two only when the argument count is
if (!is_power_of_two(count)) {
error(ce->proc, "'%.*s' must produce a power of two #simd count, got %lld", LIT(builtin_name), cast(long long)count);
return false;
}
operand->type = alloc_type_simd_vector(count, elem);
operand->mode = Addressing_Value;