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Unified Diff: test/cctest/test-run-wasm-relocation-arm.cc

Issue 1759873002: Assembler changes for enabling GrowHeap in Wasm (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Fix compile Created 4 years, 9 months ago
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Index: test/cctest/test-run-wasm-relocation-arm.cc
diff --git a/test/cctest/test-run-wasm-relocation-arm.cc b/test/cctest/test-run-wasm-relocation-arm.cc
new file mode 100644
index 0000000000000000000000000000000000000000..adfeb28b2f0a1f3d542acfde17338d4bbd825995
--- /dev/null
+++ b/test/cctest/test-run-wasm-relocation-arm.cc
@@ -0,0 +1,80 @@
+// Copyright 2015 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include <iostream> // NOLINT(readability/streams)
+
+#include "src/v8.h"
+#include "test/cctest/cctest.h"
+
+#include "src/arm/assembler-arm-inl.h"
+#include "src/arm/simulator-arm.h"
+#include "src/disassembler.h"
+#include "src/factory.h"
+#include "src/ostreams.h"
+#include "test/cctest/compiler/c-signature.h"
+#include "test/cctest/compiler/call-tester.h"
+
+using namespace v8::base;
+using namespace v8::internal;
+using namespace v8::internal::compiler;
+
+#define __ assm.
+
+static int32_t DummyStaticFunction(Object* result) { return 1; }
+
+TEST(WasmRelocationArm) {
+ CcTest::InitializeVM();
+ Isolate* isolate = CcTest::i_isolate();
+ HandleScope scope(isolate);
+ v8::internal::byte buffer[4096];
+ DummyStaticFunction(NULL);
+ int32_t imm = 1234567;
+
+ Assembler assm(isolate, buffer, sizeof buffer);
+
+ __ mov(r0, Operand(imm, RelocInfo::WASM_MEMORY_REFERENCE));
+ __ mov(pc, Operand(lr));
+
+ CodeDesc desc;
+ assm.GetCode(&desc);
+ Handle<Code> code = isolate->factory()->NewCode(
+ desc, Code::ComputeFlags(Code::STUB), Handle<Code>());
+
+ CSignature0<int32_t> csig;
+ CodeRunner<int32_t> runnable(isolate, code, &csig);
+ int32_t ret_value = runnable.Call();
+ CHECK_EQ(ret_value, imm);
+
+#ifdef DEBUG
+ OFStream os(stdout);
+ code->Print(os);
+ ::printf("f() = %d\n\n", ret_value);
+#endif
+ size_t offset = 1234;
+
+ // Relocating references by offset
+ int mode_mask = (1 << RelocInfo::WASM_MEMORY_REFERENCE);
+ for (RelocIterator it(*code, mode_mask); !it.done(); it.next()) {
+ RelocInfo::Mode mode = it.rinfo()->rmode();
+ if (RelocInfo::IsWasmMemoryReference(mode)) {
+ // Dummy values of size used here as the objective of the test is to
+ // verify that the immediate is patched correctly
+ it.rinfo()->update_wasm_memory_reference(
+ it.rinfo()->wasm_memory_reference(),
+ it.rinfo()->wasm_memory_reference() + offset, 1, 2,
+ SKIP_ICACHE_FLUSH);
+ }
+ }
+
+ // Call into relocated code object
+ ret_value = runnable.Call();
+ CHECK_EQ((imm + offset), ret_value);
+
+#ifdef DEBUG
+ code->Print(os);
+ ::printf("f() = %d\n\n", ret_value);
+#endif
+}
+
+#undef __
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