(final_scan_insn): Don't call alter_cond unless condition is on cc0.

From-SVN: r10062

diff --git a/gcc/final.c b/gcc/final.c
index 99689502882afd1f6bf0d6ce8b2a2b8c6612e00d..73780b9125410b7b8d2581e875545399052a1586 100644 (file)
--- a/gcc/final.c
+++ b/gcc/final.c
@@ -1805,6 +1805,8 @@ final_scan_insn (insn, file, optimize, prescan, nopeepholes)
            && GET_CODE (body) == SET
            && SET_DEST (body) == pc_rtx
            && GET_CODE (SET_SRC (body)) == IF_THEN_ELSE
+           && GET_RTX_CLASS (GET_CODE (XEXP (SET_SRC (body), 0))) == '<'
+           && XEXP (XEXP (SET_SRC (body), 0), 1) == cc0_rtx
            /* This is done during prescan; it is not done again
               in final scan when prescan has been done.  */
            && prescan >= 0)