gas/

	* config/tc-mips.c (find_altered_mips16_opcode): New function.
	(append_insn): Use it.

opcodes/
	* mips16-opc.c (jalrc, jrc): Move earlier in file.

diff --git a/gas/ChangeLog b/gas/ChangeLog
index a2ddcda..40f5622 100644 (file)
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,5 +1,10 @@
 2011-06-29  Richard Sandiford  <rdsandiford@googlemail.com>
 
+       * config/tc-mips.c (find_altered_mips16_opcode): New function.
+       (append_insn): Use it.
+
+2011-06-29  Richard Sandiford  <rdsandiford@googlemail.com>
+
        * config/tc-mips.c (insn_uses_reg): Delete.
        (gpr_read_mask, gpr_write_mask): New functions.
        (fpr_read_mask, fpr_write_mask): Likewise.

diff --git a/gas/config/tc-mips.c b/gas/config/tc-mips.c
index 345d6d0..d8da3d7 100644 (file)
--- a/gas/config/tc-mips.c
+++ b/gas/config/tc-mips.c
@@ -3073,6 +3073,24 @@ fix_loongson2f (struct mips_cl_insn * ip)
     fix_loongson2f_jump (ip);
 }
 
+/* IP is a MIPS16 instruction whose opcode we have just changed.
+   Point IP->insn_mo to the new opcode's definition.  */
+
+static void
+find_altered_mips16_opcode (struct mips_cl_insn *ip)
+{
+  const struct mips_opcode *mo, *end;
+
+  end = &mips16_opcodes[bfd_mips16_num_opcodes];
+  for (mo = ip->insn_mo; mo < end; mo++)
+    if ((ip->insn_opcode & mo->mask) == mo->match)
+      {
+       ip->insn_mo = mo;
+       return;
+      }
+  abort ();
+}
+
 /* Output an instruction.  IP is the instruction information.
    ADDRESS_EXPR is an operand of the instruction to be used with
    RELOC_TYPE.  */
@@ -3545,6 +3563,7 @@ append_insn (struct mips_cl_insn *ip, expressionS *address_expr,
                {
                  /* Convert MIPS16 jr/jalr into a "compact" jump.  */
                  ip->insn_opcode |= 0x0080;
+                 find_altered_mips16_opcode (ip);
                  install_insn (ip);
                  insert_into_history (0, 1, ip);
                } 

diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog
index 158d456..6cc01c7 100644 (file)
--- a/opcodes/ChangeLog
+++ b/opcodes/ChangeLog
@@ -1,3 +1,7 @@
+2011-06-29  Richard Sandiford  <rdsandiford@googlemail.com>
+
+       * mips16-opc.c (jalrc, jrc): Move earlier in file.
+
 2011-06-21  H.J. Lu  <hongjiu.lu@intel.com>
 
        * i386-dis.c (prefix_table): Re-indent PREFIX_VEX_0F388C and

diff --git a/opcodes/mips16-opc.c b/opcodes/mips16-opc.c
index c42ab27..0e50aec 100644 (file)
--- a/opcodes/mips16-opc.c
+++ b/opcodes/mips16-opc.c
@@ -171,6 +171,13 @@ const struct mips_opcode mips16_opcodes[] =
 {"jr",     "R",        0xe820, 0xffff, UBD|RD_31,      0,      I1 },
 {"j",      "x",        0xe800, 0xf8ff, UBD|RD_x,       0,      I1 },
 {"j",      "R",        0xe820, 0xffff, UBD|RD_31,      0,      I1 },
+/* MIPS16e compact branches.  We keep them near the ordinary branches
+   so that we easily find them when converting a normal branch to a
+   compact one.  */
+{"jalrc",   "x",       0xe8c0, 0xf8ff, UBR|WR_31|RD_x|TRAP, 0,     I32 },
+{"jalrc",   "R,x",     0xe8c0, 0xf8ff, UBR|WR_31|RD_x|TRAP, 0,     I32 },
+{"jrc",     "x",       0xe880, 0xf8ff, UBR|RD_x|TRAP,  0,      I32 },
+{"jrc",     "R",       0xe8a0, 0xffff, UBR|RD_31|TRAP, 0,      I32 },
 {"lb",     "y,5(x)",   0x8000, 0xf800, WR_y|RD_x,      0,      I1 },
 {"lbu",            "y,5(x)",   0xa000, 0xf800, WR_y|RD_x,      0,      I1 },
 {"ld",     "y,D(x)",   0x3800, 0xf800, WR_y|RD_x,      0,      I3 },
@@ -227,10 +234,6 @@ const struct mips_opcode mips16_opcodes[] =
 {"sw",     "R,V(S)",   0x6200, 0xff00, RD_31|RD_SP,    0,      I1 },
 {"xor",            "x,y",      0xe80e, 0xf81f, WR_x|RD_x|RD_y, 0,      I1 },
   /* MIPS16e additions */
-{"jalrc",   "x",       0xe8c0, 0xf8ff, UBR|WR_31|RD_x|TRAP, 0,     I32 },
-{"jalrc",   "R,x",     0xe8c0, 0xf8ff, UBR|WR_31|RD_x|TRAP, 0,     I32 },
-{"jrc",     "x",       0xe880, 0xf8ff, UBR|RD_x|TRAP,  0,      I32 },
-{"jrc",     "R",       0xe8a0, 0xffff, UBR|RD_31|TRAP, 0,      I32 },
 {"restore", "M",       0x6400, 0xff80, WR_31|RD_SP|WR_SP|TRAP, 0,      I32 },
 {"save",    "m",       0x6480, 0xff80, RD_31|RD_SP|WR_SP|TRAP, 0,      I32 },
 {"sdbbp",   "6",       0xe801, 0xf81f, TRAP,           0,      I32 },