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add maximum value for @setAlignStack

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This commit is contained in:
Andrew Kelley
2017-10-23 22:33:00 -04:00
parent c1642355f0
commit 643ab90ace
3 changed files with 13 additions and 1 deletions
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5
src/ir.cpp
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@@ -15312,6 +15312,11 @@ static TypeTableEntry *ir_analyze_instruction_set_align_stack(IrAnalyze *ira, Ir
if (!ir_resolve_align(ira, align_bytes_inst, &align_bytes))
return ira->codegen->builtin_types.entry_invalid;
if (align_bytes > 256) {
ir_add_error(ira, &instruction->base, buf_sprintf("attempt to @setAlignStack(%" PRIu32 "); maximum is 256", align_bytes));
return ira->codegen->builtin_types.entry_invalid;
}
FnTableEntry *fn_entry = exec_fn_entry(ira->new_irb.exec);
if (fn_entry == nullptr) {
ir_add_error(ira, &instruction->base, buf_sprintf("@setAlignStack outside function"));