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LibWasm: Resolve labels starting from the top of the stack

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Otherwise "label index 0" would be the first ever created label, not the
last one (as the spec wants) :^(
This commit is contained in:
Ali Mohammad Pur 2021-05-18 00:21:00 +04:30 • committed by Linus Groh
commit 29b193d25d
Notes: sideshowbarker 2024-07-18 17:39:33 +09:00
1 changed files with 2 additions and 1 deletions
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3
Userland/Libraries/LibWasm/AbstractMachine/Configuration.cpp
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@ -11,7 +11,8 @@ namespace Wasm {
Optional<Label> Configuration::nth_label(size_t i) Optional<Label> Configuration::nth_label(size_t i)
{ {
for (auto& entry : m_stack.entries()) { for (size_t index = m_stack.size(); index > 0; --index) {
auto& entry = m_stack.entries()[index - 1];
if (auto ptr = entry.get_pointer<NonnullOwnPtr<Label>>()) { if (auto ptr = entry.get_pointer<NonnullOwnPtr<Label>>()) {
if (i == 0) if (i == 0)
return **ptr; return **ptr;