LibWasm: Implement checked truncation instructions

This implements the 8 i<n>.truncate.f<n>_<s> instructions.
Author: https://github.com/alimpfard Commit: a21ebae652 Pull-request: https://github.com/SerenityOS/serenity/pull/7395 Reviewed-by: https://github.com/linusg
2025-09-06 01:26:22 +00:00 · 2021-05-18 01:19:40 +04:30 · 2021-05-18 01:19:40 +04:30 · a21ebae652 · 2024-07-18 17:23:08 +09:00
commit a21ebae652
parent 59e01e2813
3 changed files with 86 additions and 10 deletions
--- a/Userland/Libraries/LibWasm/AbstractMachine/AbstractMachine.h
+++ b/Userland/Libraries/LibWasm/AbstractMachine/AbstractMachine.h
@ -115,6 +115,8 @@ public:
            [&](auto value) {
                if constexpr (IsSame<T, decltype(value)>)
                    result = value;
+                else if constexpr (!IsFloatingPoint<T> && IsSame<decltype(value), MakeSigned<T>>)
+                    result = value;
            },
            [&](const FunctionAddress& address) {
                if constexpr (IsSame<T, FunctionAddress>)