* Merged in twisti-branch.

[cacao.git] / src / vm / jit / powerpc / md.c

diff --git a/src/vm/jit/powerpc/md.c b/src/vm/jit/powerpc/md.c
index 3ec67f0211e7bf1e3ea4eabfb86424480ede2ae7..d1c5a681bf3ee888728709c3767cd781a0959262 100644 (file)
--- a/src/vm/jit/powerpc/md.c
+++ b/src/vm/jit/powerpc/md.c
@@ -22,7 +22,7 @@
    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
    02110-1301, USA.
 
-   $Id: md.c 7246 2007-01-29 18:49:05Z twisti $
+   $Id: md.c 7297 2007-02-07 14:59:56Z twisti $
 
 */
 
@@ -59,60 +59,6 @@ void md_init(void)
 }
 
 
-/* md_codegen_patch_branch *****************************************************
-
-   Back-patches a branch instruction.
-
-*******************************************************************************/
-
-void md_codegen_patch_branch(codegendata *cd, s4 branchmpc, s4 targetmpc)
-{
-       s4 *mcodeptr;
-       s4  mcode;
-       s4  disp;                           /* branch displacement                */
-
-       /* calculate the patch position */
-
-       mcodeptr = (s4 *) (cd->mcodebase + branchmpc);
-
-       /* get the instruction before the exception point */
-
-       mcode = mcodeptr[-1];
-
-       /* Calculate the branch displacement. */
-
-       disp = targetmpc - branchmpc + 4;
-
-       /* Check which branch instruction we have.  Then mask it and patch
-          the displacement. */
-
-       if ((mcode & 0xfc000000) == 0x48000000) {
-               /* bx  (0x48000000) */
-
-               if ((disp < (s4) 0xfe000000) || (disp > (s4) 0x01fffffc))
-                       vm_abort("md_codegen_patch_branch: branch displacement out of range: %d > +/-%d", disp, 0x03fffffc);
-
-               mcode &= ~M_BMASK;     /* mask out previous displacement, probably +4 */
-               mcode |= (disp & M_BMASK);
-       }
-       else if ((mcode & 0xfc000000) == 0x40000000) {
-               /* bcx (0x40000000) */
-
-               if ((disp < (s4) 0xffff8000) || (disp > (s4) 0x00007fff))
-                       vm_abort("md_codegen_patch_branch: branch displacement out of range: %d > +/-%d", disp, 0x00007fff);
-
-               mcode &= ~M_BCMASK;    /* mask out previous displacement, probably +4 */
-               mcode |= (disp & M_BCMASK);
-       }
-       else
-               vm_abort("md_codegen_patch_branch: unknown instruction 0x%08x", mcode);
-
-       /* patch the branch instruction before the mcodeptr */
-
-       mcodeptr[-1] = mcode;
-}
-
-
 /* md_stacktrace_get_returnaddress *********************************************
 
    Returns the return address of the current stackframe, specified by