m68hc11.c (m68hc11_override_options): Ignore the -fpic and -fPIC options, clear flag_pic.

	* config/m68hc11/m68hc11.c (m68hc11_override_options): Ignore
	the -fpic and -fPIC options, clear flag_pic.

From-SVN: r42339

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 8d5c4f835c2bbc0e10ed48e47a59d83a3fea5d6a..8b2d873767d4676410fcfeeebb7bb02197218742 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2001-05-20  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
+
+       * config/m68hc11/m68hc11.c (m68hc11_override_options): Ignore
+       the -fpic and -fPIC options, clear flag_pic.
+
 2001-05-20  Neil Booth  <neil@daikokuya.demon.co.uk>
 
        * hashtable.c (calc_hash): Fix HASHSTEP definition.

diff --git a/gcc/config/m68hc11/m68hc11.c b/gcc/config/m68hc11/m68hc11.c
index f9de2dcf6984b3d54d3e50e378701d0704bcd440..fed8d16a1e3f19ac6f2c64b58a617dfcf5816f77 100644 (file)
--- a/gcc/config/m68hc11/m68hc11.c
+++ b/gcc/config/m68hc11/m68hc11.c
@@ -211,6 +211,14 @@ m68hc11_override_options ()
          sizeof (m68hc11_reg_valid_for_index));
   memset (m68hc11_reg_valid_for_base, 0, sizeof (m68hc11_reg_valid_for_base));
 
+  /* Compilation with -fpic generates a wrong code.  */
+  if (flag_pic)
+    {
+      warning ("-f%s ignored for 68HC11/68HC12 (not supported)",
+              (flag_pic > 1) ? "PIC" : "pic");
+      flag_pic = 0;
+    }
+
   /* Configure for a 68hc11 processor.  */
   if (TARGET_M6811)
     {
@@ -1808,7 +1816,8 @@ m68hc11_gen_lowpart (mode, x)
          if (mode == SImode)
            return gen_rtx (CONST_INT, VOIDmode, l[0]);
 
-         return gen_rtx (CONST_INT, VOIDmode, l[0] & 0x0ffff);
+         return gen_rtx (CONST_INT, VOIDmode,
+                          trunc_int_for_mode (l[0], HImode));
        }
       else
        {
@@ -1817,7 +1826,8 @@ m68hc11_gen_lowpart (mode, x)
       if (mode == SImode)
        return gen_rtx (CONST_INT, VOIDmode, l[0]);
       else if (mode == HImode && GET_MODE (x) == SFmode)
-       return gen_rtx (CONST_INT, VOIDmode, l[0] & 0x0FFFF);
+       return gen_rtx (CONST_INT, VOIDmode,
+                        trunc_int_for_mode (l[0], HImode));
       else
        abort ();
     }
@@ -1829,9 +1839,9 @@ m68hc11_gen_lowpart (mode, x)
   if (GET_CODE (x) == SUBREG && SUBREG_BYTE (x) != 0)
     {
       if (mode == SImode)
-       return gen_rtx_SUBREG (mode, SUBREG_REG (x), SUBREG_BYTE (x) + 2);
+       return gen_rtx_SUBREG (mode, SUBREG_REG (x), SUBREG_BYTE (x) + 4);
       else if (mode == HImode)
-       return gen_rtx_SUBREG (mode, SUBREG_REG (x), SUBREG_BYTE (x) + 1);
+       return gen_rtx_SUBREG (mode, SUBREG_REG (x), SUBREG_BYTE (x) + 2);
       else
        abort ();
     }
@@ -1885,7 +1895,8 @@ m68hc11_gen_highpart (mode, x)
          if (mode == SImode)
            return gen_rtx (CONST_INT, VOIDmode, l[1]);
 
-         return gen_rtx (CONST_INT, VOIDmode, (l[1] >> 16) & 0x0ffff);
+         return gen_rtx (CONST_INT, VOIDmode,
+                          trunc_int_for_mode ((l[1] >> 16), HImode));
        }
       else
        {
@@ -1895,7 +1906,8 @@ m68hc11_gen_highpart (mode, x)
       if (mode == SImode)
        return gen_rtx (CONST_INT, VOIDmode, l[1]);
       else if (mode == HImode && GET_MODE_CLASS (GET_MODE (x)) == MODE_FLOAT)
-       return gen_rtx (CONST_INT, VOIDmode, (l[0] >> 16) & 0x0FFFF);
+       return gen_rtx (CONST_INT, VOIDmode,
+                        trunc_int_for_mode ((l[0] >> 16), HImode));
       else
        abort ();
     }
@@ -1905,11 +1917,13 @@ m68hc11_gen_highpart (mode, x)
 
       if (mode == QImode)
        {
-         return gen_rtx (CONST_INT, VOIDmode, val >> 8);
+         return gen_rtx (CONST_INT, VOIDmode,
+                          trunc_int_for_mode (val >> 8, QImode));
        }
       else if (mode == HImode)
        {
-         return gen_rtx (CONST_INT, VOIDmode, val >> 16);
+         return gen_rtx (CONST_INT, VOIDmode,
+                          trunc_int_for_mode (val >> 16, HImode));
        }
     }
   if (mode == QImode && D_REG_P (x))