2004-06-09 Benjamin Kosnik <bkoz@redhat.com>

[pf3gnuchains/gcc-fork.git] / gcc / hard-reg-set.h

diff --git a/gcc/hard-reg-set.h b/gcc/hard-reg-set.h
index e80f39e..a770180 100644 (file)
--- a/gcc/hard-reg-set.h
+++ b/gcc/hard-reg-set.h
@@ -1,5 +1,5 @@
 /* Sets (bit vectors) of hard registers, and operations on them.
-   Copyright (C) 1987, 1992, 1994, 2000 Free Software Foundation, Inc.
+   Copyright (C) 1987, 1992, 1994, 2000, 2003 Free Software Foundation, Inc.
 
 This file is part of GCC
 
@@ -405,6 +405,10 @@ extern HARD_REG_SET fixed_reg_set;
 
 extern char call_used_regs[FIRST_PSEUDO_REGISTER];
 
+#ifdef CALL_REALLY_USED_REGISTERS
+extern char call_really_used_regs[];
+#endif
+
 /* The same info as a HARD_REG_SET.  */
 
 extern HARD_REG_SET call_used_reg_set;
@@ -414,7 +418,7 @@ extern HARD_REG_SET losing_caller_save_reg_set;
 
 /* Indexed by hard register number, contains 1 for registers that are
    fixed use -- i.e. in fixed_regs -- or a function value return register
-   or STRUCT_VALUE_REGNUM or STATIC_CHAIN_REGNUM.  These are the
+   or TARGET_STRUCT_VALUE_RTX or STATIC_CHAIN_REGNUM.  These are the
    registers that cannot hold quantities across calls even if we are
    willing to save and restore them.  */
 
@@ -484,4 +488,9 @@ extern int n_non_fixed_regs;
 
 extern const char * reg_names[FIRST_PSEUDO_REGISTER];
 
+/* Given a hard REGN a FROM mode and a TO mode, return nonzero if
+   REGN cannot change modes between the specified modes.  */
+#define REG_CANNOT_CHANGE_MODE_P(REGN, FROM, TO)                          \
+         CANNOT_CHANGE_MODE_CLASS (FROM, TO, REGNO_REG_CLASS (REGN))
+
 #endif /* ! GCC_HARD_REG_SET_H */