Add a CSE pass over the hard registers after reload is complete

[pf3gnuchains/gcc-fork.git] / gcc / expr.h

diff --git a/gcc/expr.h b/gcc/expr.h
index 9c30a55..573acdf 100644 (file)
--- a/gcc/expr.h
+++ b/gcc/expr.h
@@ -358,6 +358,8 @@ extern rtx bcmp_libfunc;
 extern rtx memset_libfunc;
 extern rtx bzero_libfunc;
 
+extern rtx throw_libfunc;
+
 extern rtx eqhf2_libfunc;
 extern rtx nehf2_libfunc;
 extern rtx gthf2_libfunc;
@@ -578,6 +580,10 @@ extern rtx expand_and PROTO((rtx, rtx, rtx));
 extern rtx emit_store_flag PROTO((rtx, enum rtx_code, rtx, rtx,
                                  enum machine_mode, int, int));
 
+/* Like emit_store_flag, but always succeeds.  */
+extern rtx emit_store_flag_force PROTO((rtx, enum rtx_code, rtx, rtx,
+                                       enum machine_mode, int, int));
+
 /* Functions from loop.c:  */
 
 /* Given a JUMP_INSN, return a description of the test being made.  */
@@ -620,11 +626,20 @@ extern void move_block_to_reg PROTO((int, rtx, int, enum machine_mode));
    The number of registers to be filled is NREGS.  */
 extern void move_block_from_reg PROTO((int, rtx, int, int));
 
+/* Load a BLKmode value into non-consecutive registers represented by a
+   PARALLEL.  */
+extern void emit_group_load PROTO((rtx, rtx));
+/* Store a BLKmode value from non-consecutive registers represented by a
+   PARALLEL.  */
+extern void emit_group_store PROTO((rtx, rtx));
+
 /* Mark REG as holding a parameter for the next CALL_INSN.  */
-extern void use_reg PROTO((rtx*, rtx));
+extern void use_reg PROTO((rtx *, rtx));
 /* Mark NREGS consecutive regs, starting at REGNO, as holding parameters
    for the next CALL_INSN.  */
-extern void use_regs PROTO((rtx*, int, int));
+extern void use_regs PROTO((rtx *, int, int));
+/* Mark a PARALLEL as holding a parameter for the next CALL_INSN.  */
+extern void use_group_regs PROTO((rtx *, rtx));
 
 /* Write zeros through the storage of OBJECT.
    If OBJECT has BLKmode, SIZE is its length in bytes and ALIGN is its