Changeset 51739 in webkit for trunk/JavaScriptCore/jit/JITOpcodes.cpp

Timestamp:

Dec 6, 2009, 2:30:32 AM (15 years ago)

Author:

[email protected]

Message:

Not reviewed, build fix.

Actually tested 64-bit *and* 32-bit build this time.

• jit/JITOpcodes.cpp:

(JSC::JIT::emit_op_loop_if_false):

File:

• trunk/JavaScriptCore/jit/JITOpcodes.cpp (modified) (1 diff)

trunk/JavaScriptCore/jit/JITOpcodes.cpp

@@ -746 +746 @@
 void JIT::emit_op_loop_if_false(Instruction* currentInstruction)
 {
+    unsigned cond = currentInstruction[1].u.operand;
+    unsigned target = currentInstruction[2].u.operand;
+
     emitTimeoutCheck();
 
-    unsigned target = currentInstruction[2].u.operand;
-    emitGetVirtualRegister(currentInstruction[1].u.operand, regT0);
-
-    addJump(branchPtr(Equal, regT0, ImmPtr(JSValue::encode(jsNumber(m_globalData, 0)))), target);
-    Jump isNonZero = emitJumpIfImmediateInteger(regT0);
-
-    addJump(branchPtr(Equal, regT0, ImmPtr(JSValue::encode(jsBoolean(false)))), target);
-    addSlowCase(branchPtr(NotEqual, regT0, ImmPtr(JSValue::encode(jsBoolean(true)))));
-
-    isNonZero.link(this);
-    RECORD_JUMP_TARGET(target);
+    emitLoad(cond, regT1, regT0);
+
+    Jump isTrue = branch32(Equal, regT1, Imm32(JSValue::TrueTag));
+    addJump(branch32(Equal, regT1, Imm32(JSValue::FalseTag)), target);
+
+    Jump isNotInteger = branch32(NotEqual, regT1, Imm32(JSValue::Int32Tag));
+    Jump isTrue2 = branch32(NotEqual, regT0, Imm32(0));
+    addJump(jump(), target);
+
+    if (supportsFloatingPoint()) {
+        isNotInteger.link(this);
+
+        addSlowCase(branch32(Above, regT1, Imm32(JSValue::LowestTag)));
+
+        zeroDouble(fpRegT0);
+        emitLoadDouble(cond, fpRegT1);
+        addJump(branchDouble(DoubleEqualOrUnordered, fpRegT0, fpRegT1), target);
+    } else
+        addSlowCase(isNotInteger);
+
+    isTrue.link(this);
+    isTrue2.link(this);
 }