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String str = "" is now guaranteed to be null terminated. #2083

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This commit is contained in:
Christoffer Lerno
2025-04-16 23:19:28 +02:00
parent 5cf48ad730
commit 6454856fdb
9 changed files with 123 additions and 26 deletions
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3
src/compiler/llvm_codegen_expr.c
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@@ -4701,7 +4701,8 @@ static void llvm_emit_const_expr(GenContext *c, BEValue *be_value, Expr *expr)
ArraySize len = expr->const_expr.bytes.len;
if (len == 0 && str_type->type_kind == TYPE_SLICE)
{
llvm_value_set(be_value, llvm_get_zero(c, expr->type), expr->type);
LLVMValueRef data[2] = { llvm_emit_zstring_named(c, "", ".emptystr"), llvm_get_zero(c, type_usz) };
llvm_value_set(be_value, llvm_get_struct_named(c->chars_type, data, 2), expr->type);
return;
}
ArraySize size = expr->const_expr.bytes.len;