JavaScriptCore-7600.1.4.17.5.tar.gz

[apple/javascriptcore.git] / assembler / AssemblerBufferWithConstantPool.h

diff --git a/assembler/AssemblerBufferWithConstantPool.h b/assembler/AssemblerBufferWithConstantPool.h
index e2ea261ee26c5673106a37cc30ad6d6075315033..053884b01fb7c3cd6971b558ec82348ec552e20a 100644 (file)
--- a/assembler/AssemblerBufferWithConstantPool.h
+++ b/assembler/AssemblerBufferWithConstantPool.h
@@ -127,9 +127,9 @@ public:
         AssemblerBuffer::ensureSpace(insnSpace);
     }
 
-    void ensureSpaceForAnyOneInstruction()
+    void ensureSpaceForAnyInstruction(int amount = 1)
     {
-        flushIfNoSpaceFor(maxInstructionSize, sizeof(uint64_t));
+        flushIfNoSpaceFor(amount * maxInstructionSize, amount * sizeof(uint64_t));
     }
 
     bool isAligned(int alignment)
@@ -195,12 +195,6 @@ public:
         putIntegralUnchecked(value.low);
     }
 
-    PassRefPtr<ExecutableMemoryHandle> executableCopy(JSGlobalData& globalData, void* ownerUID, JITCompilationEffort effort)
-    {
-        flushConstantPool(false);
-        return AssemblerBuffer::executableCopy(globalData, ownerUID, effort);
-    }
-
     void putShortWithConstantInt(uint16_t insn, uint32_t constant, bool isReusable = false)
     {
         putIntegralWithConstantInt(insn, constant, isReusable);
@@ -215,7 +209,7 @@ public:
     void flushWithoutBarrier(bool isForced = false)
     {
         // Flush if constant pool is more than 60% full to avoid overuse of this function.
-        if (isForced || 5 * m_numConsts > 3 * maxPoolSize / sizeof(uint32_t))
+        if (isForced || 5 * static_cast<uint32_t>(m_numConsts) > 3 * maxPoolSize / sizeof(uint32_t))
             flushConstantPool(false);
     }
 
@@ -229,6 +223,41 @@ public:
         return m_numConsts;
     }
 
+    void flushConstantPool(bool useBarrier = true)
+    {
+        if (!m_numConsts)
+            return;
+        int alignPool = (codeSize() + (useBarrier ? barrierSize : 0)) & (sizeof(uint64_t) - 1);
+
+        if (alignPool)
+            alignPool = sizeof(uint64_t) - alignPool;
+
+        // Callback to protect the constant pool from execution
+        if (useBarrier)
+            putIntegral(AssemblerType::placeConstantPoolBarrier(m_numConsts * sizeof(uint32_t) + alignPool));
+
+        if (alignPool) {
+            if (alignPool & 1)
+                AssemblerBuffer::putByte(AssemblerType::padForAlign8);
+            if (alignPool & 2)
+                AssemblerBuffer::putShort(AssemblerType::padForAlign16);
+            if (alignPool & 4)
+                AssemblerBuffer::putInt(AssemblerType::padForAlign32);
+        }
+
+        int constPoolOffset = codeSize();
+        append(reinterpret_cast<char*>(m_pool), m_numConsts * sizeof(uint32_t));
+
+        // Patch each PC relative load
+        for (LoadOffsets::Iterator iter = m_loadOffsets.begin(); iter != m_loadOffsets.end(); ++iter) {
+            void* loadAddr = reinterpret_cast<char*>(data()) + *iter;
+            AssemblerType::patchConstantPoolLoad(loadAddr, reinterpret_cast<char*>(data()) + constPoolOffset);
+        }
+
+        m_loadOffsets.clear();
+        m_numConsts = 0;
+    }
+
 private:
     void correctDeltas(int insnSize)
     {
@@ -273,41 +302,6 @@ private:
         correctDeltas(sizeof(IntegralType), 4);
     }
 
-    void flushConstantPool(bool useBarrier = true)
-    {
-        if (m_numConsts == 0)
-            return;
-        int alignPool = (codeSize() + (useBarrier ? barrierSize : 0)) & (sizeof(uint64_t) - 1);
-
-        if (alignPool)
-            alignPool = sizeof(uint64_t) - alignPool;
-
-        // Callback to protect the constant pool from execution
-        if (useBarrier)
-            putIntegral(AssemblerType::placeConstantPoolBarrier(m_numConsts * sizeof(uint32_t) + alignPool));
-
-        if (alignPool) {
-            if (alignPool & 1)
-                AssemblerBuffer::putByte(AssemblerType::padForAlign8);
-            if (alignPool & 2)
-                AssemblerBuffer::putShort(AssemblerType::padForAlign16);
-            if (alignPool & 4)
-                AssemblerBuffer::putInt(AssemblerType::padForAlign32);
-        }
-
-        int constPoolOffset = codeSize();
-        append(reinterpret_cast<char*>(m_pool), m_numConsts * sizeof(uint32_t));
-
-        // Patch each PC relative load
-        for (LoadOffsets::Iterator iter = m_loadOffsets.begin(); iter != m_loadOffsets.end(); ++iter) {
-            void* loadAddr = reinterpret_cast<char*>(data()) + *iter;
-            AssemblerType::patchConstantPoolLoad(loadAddr, reinterpret_cast<char*>(data()) + constPoolOffset);
-        }
-
-        m_loadOffsets.clear();
-        m_numConsts = 0;
-    }
-
     void flushIfNoSpaceFor(int nextInsnSize)
     {
         if (m_numConsts == 0)