[llvm-commits] CVS: llvm/lib/Target/X86/X86JITInfo.cpp

[Evan Cheng]

Changes in directory llvm/lib/Target/X86:

X86JITInfo.cpp updated: 1.35 -> 1.36
---
Log message:

x86-64 JIT stub codegen.

---
Diffs of the changes:  (+11 -0)

 X86JITInfo.cpp |   11 +++++++++++
 1 files changed, 11 insertions(+)


Index: llvm/lib/Target/X86/X86JITInfo.cpp
diff -u llvm/lib/Target/X86/X86JITInfo.cpp:1.35 llvm/lib/Target/X86/X86JITInfo.cpp:1.36
--- llvm/lib/Target/X86/X86JITInfo.cpp:1.35	Wed Mar 14 05:44:30 2007
+++ llvm/lib/Target/X86/X86JITInfo.cpp	Wed Mar 14 05:48:08 2007
@@ -306,10 +306,21 @@
   bool NotCC = Fn != (void*)(intptr_t)X86CompilationCallback;
 #endif
   if (NotCC) {
+#ifdef __x86_64__
+    MCE.startFunctionStub(13, 4);
+    MCE.emitByte(0x49);          // REX prefix
+    MCE.emitByte(0xB8+2);        // movabsq r10
+    MCE.emitWordLE(((unsigned *)&Fn)[0]);
+    MCE.emitWordLE(((unsigned *)&Fn)[1]);
+    MCE.emitByte(0x41);          // REX prefix
+    MCE.emitByte(0xFF);          // jmpq *r10
+    MCE.emitByte(2 | (4 << 3) | (3 << 6));
+#else
     MCE.startFunctionStub(5, 4);
     MCE.emitByte(0xE9);
     MCE.emitWordLE((intptr_t)Fn-MCE.getCurrentPCValue()-4);
     return MCE.finishFunctionStub(0);
+#endif
   }
 
 #ifdef __x86_64__