diff options
Diffstat (limited to 'src/wasm-interpreter.h')
| -rw-r--r-- | src/wasm-interpreter.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/src/wasm-interpreter.h b/src/wasm-interpreter.h index 7af64e336..a22a631b1 100644 --- a/src/wasm-interpreter.h +++ b/src/wasm-interpreter.h @@ -3,6 +3,8 @@ // can function as a polyfill. // +#include <limits.h> + #include "wasm.h" namespace wasm { @@ -27,6 +29,7 @@ public: virtual Literal callImport(Import* import, LiteralList& arguments) = 0; virtual Literal load(Load* load, Literal ptr) = 0; virtual void store(Store* store, Literal ptr, Literal value) = 0; + virtual void trap() = 0; }; ModuleInstance(Module& wasm, ExternalInterface* externalInterface) : wasm(wasm), externalInterface(externalInterface) { @@ -356,7 +359,11 @@ public: case ExtendSInt32: return Flow(Literal(int64_t(value.geti32()))); case ExtendUInt32: return Flow(Literal(uint64_t((uint32_t)value.geti32()))); case WrapInt64: return Flow(Literal(int32_t(value.geti64()))); - case TruncSFloat32: return Flow(Literal(int32_t(value.getf32()))); + case TruncSFloat32: { + float val = value.getf32(); + if (val > (double)INT_MAX || val < (double)INT_MIN) instance.externalInterface->trap(); + return Flow(Literal(int32_t(val))); + } case TruncUFloat32: return Flow(Literal(uint32_t(value.getf32()))); case TruncSFloat64: return Flow(Literal(int32_t(value.getf64()))); case TruncUFloat64: return Flow(Literal(int32_t((uint32_t)value.getf64()))); |