src/compiler/wasm-compiler.cc - Issue 2396433008: [wasm] Add guard regions to end of WebAssembly.Memory buffers

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Unified Diff: src/compiler/wasm-compiler.cc

Issue 2396433008: [wasm] Add guard regions to end of WebAssembly.Memory buffers (Closed)

Patch Set: Code review feedback Created 4 years, 2 months ago

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Index: src/compiler/wasm-compiler.cc

diff --git a/src/compiler/wasm-compiler.cc b/src/compiler/wasm-compiler.cc

index e1c3aa7dca94c7d3a6ac1e7c04bb201f95c4cc55..44cfb13994a46b9f8645be2fe800350835169154 100644

--- a/src/compiler/wasm-compiler.cc

+++ b/src/compiler/wasm-compiler.cc

@@ -2957,6 +2957,7 @@ Node* WasmGraphBuilder::LoadMem(wasm::LocalType type, MachineType memtype,

if (aligned ||

jsgraph()->machine()->UnalignedLoadSupported(memtype, alignment)) {

if (FLAG_wasm_trap_handler) {

+ DCHECK(FLAG_wasm_guard_pages);

Node* context = HeapConstant(module_->instance->context);

Node* position_node = jsgraph()->Int32Constant(position);

load = graph()->NewNode(jsgraph()->machine()->ProtectedLoad(memtype),