Implement replaceMachineCodeForFunction() for x86.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9204 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 7 insertions, 0 deletions

diff --git a/lib/Target/X86/X86TargetMachine.cpp b/lib/Target/X86/X86TargetMachine.cpp
index dcc9beaf9d..14af52099d 100644
--- a/lib/Target/X86/X86TargetMachine.cpp
+++ b/lib/Target/X86/X86TargetMachine.cpp
@@ -142,3 +142,10 @@ bool X86TargetMachine::addPassesToJITCompile(FunctionPassManager &PM) {
   return false; // success!
 }
 
+bool X86TargetMachine::replaceMachineCodeForFunction (void *Old, void *New) {
+  char *OldByte = (char *) Old;
+  *OldByte++ = 0xE9; // JMP
+  unsigned *OldWord = (unsigned *) OldByte;
+  *OldWord = (unsigned) New;
+  return false;
+}