* config/rs6000/rs6000.opt (mspe): Remove Var property.

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

diff --git a/gcc/rtl.h b/gcc/rtl.h
index fbb9044..aaa1a92 100644 (file)
--- a/gcc/rtl.h
+++ b/gcc/rtl.h
@@ -1,6 +1,6 @@
 /* Register Transfer Language (RTL) definitions for GCC
    Copyright (C) 1987, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-   2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
+   2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
    Free Software Foundation, Inc.
 
 This file is part of GCC.
@@ -149,7 +149,11 @@ typedef struct mem_attrs GTY(())
 } mem_attrs;
 
 /* Structure used to describe the attributes of a REG in similar way as
-   mem_attrs does for MEM above.  */
+   mem_attrs does for MEM above.  Note that the OFFSET field is calculated
+   in the same way as for mem_attrs, rather than in the same way as a
+   SUBREG_BYTE.  For example, if a big-endian target stores a byte
+   object in the low part of a 4-byte register, the OFFSET field
+   will be -3 rather than 0.  */
 
 typedef struct reg_attrs GTY(())
 {
@@ -1110,15 +1114,8 @@ do {                                                                     \
   XSTR (XCVECEXP (RTX, 4, N, ASM_OPERANDS), 0)
 #define ASM_OPERANDS_INPUT_MODE(RTX, N)  \
   GET_MODE (XCVECEXP (RTX, 4, N, ASM_OPERANDS))
-#ifdef USE_MAPPED_LOCATION
 #define ASM_OPERANDS_SOURCE_LOCATION(RTX) XCUINT (RTX, 5, ASM_OPERANDS)
 #define ASM_INPUT_SOURCE_LOCATION(RTX) XCUINT (RTX, 1, ASM_INPUT)
-#else
-#define ASM_OPERANDS_SOURCE_FILE(RTX) XCSTR (RTX, 5, ASM_OPERANDS)
-#define ASM_OPERANDS_SOURCE_LINE(RTX) XCINT (RTX, 6, ASM_OPERANDS)
-#define ASM_INPUT_SOURCE_FILE(RTX) XCSTR (RTX, 1, ASM_INPUT)
-#define ASM_INPUT_SOURCE_LINE(RTX) XCINT (RTX, 2, ASM_INPUT)
-#endif
 
 /* 1 if RTX is a mem that is statically allocated in read-only memory.  */
 #define MEM_READONLY_P(RTX) \
@@ -1210,8 +1207,8 @@ do {                                              \
    refer to part of a DECL.  */
 #define REG_EXPR(RTX) (REG_ATTRS (RTX) == 0 ? 0 : REG_ATTRS (RTX)->decl)
 
-/* For a MEM rtx, the offset from the start of MEM_DECL, if known, as a
-   RTX that is always a CONST_INT.  */
+/* For a REG rtx, the offset from the start of REG_EXPR, if known, as an
+   HOST_WIDE_INT.  */
 #define REG_OFFSET(RTX) (REG_ATTRS (RTX) == 0 ? 0 : REG_ATTRS (RTX)->offset)
 
 /* Copy the attributes that apply to memory locations from RHS to LHS.  */
@@ -1476,9 +1473,10 @@ extern rtx copy_insn_1 (rtx);
 extern rtx copy_insn (rtx);
 extern rtx gen_int_mode (HOST_WIDE_INT, enum machine_mode);
 extern rtx emit_copy_of_insn_after (rtx, rtx);
-extern void set_reg_attrs_from_mem (rtx, rtx);
+extern void set_reg_attrs_from_value (rtx, rtx);
 extern void set_mem_attrs_from_reg (rtx, rtx);
 extern void set_reg_attrs_for_parm (rtx, rtx);
+extern void adjust_reg_mode (rtx, enum machine_mode);
 extern int mem_expr_equal_p (const_tree, const_tree);
 
 /* In rtl.c */
@@ -1504,6 +1502,7 @@ extern rtvec gen_rtvec_v (int, rtx *);
 extern rtx gen_reg_rtx (enum machine_mode);
 extern rtx gen_rtx_REG_offset (rtx, enum machine_mode, unsigned int, int);
 extern rtx gen_reg_rtx_offset (rtx, enum machine_mode, int);
+extern rtx gen_reg_rtx_and_attrs (rtx);
 extern rtx gen_label_rtx (void);
 extern rtx gen_lowpart_common (enum machine_mode, rtx);
 
@@ -1522,6 +1521,7 @@ extern unsigned int subreg_lowpart_offset (enum machine_mode,
                                           enum machine_mode);
 extern unsigned int subreg_highpart_offset (enum machine_mode,
                                            enum machine_mode);
+extern int byte_lowpart_offset (enum machine_mode, enum machine_mode);
 extern rtx make_safe_from (rtx, rtx);
 extern rtx convert_memory_address (enum machine_mode, rtx);
 extern rtx get_insns (void);
@@ -1886,20 +1886,10 @@ extern GTY(()) rtx return_address_pointer_rtx;
 #ifndef GENERATOR_FILE
 #include "genrtl.h"
 #undef gen_rtx_ASM_INPUT
-#ifdef USE_MAPPED_LOCATION
 #define gen_rtx_ASM_INPUT(MODE, ARG0)                          \
   gen_rtx_fmt_si (ASM_INPUT, (MODE), (ARG0), 0)
 #define gen_rtx_ASM_INPUT_loc(MODE, ARG0, LOC)                 \
   gen_rtx_fmt_si (ASM_INPUT, (MODE), (ARG0), (LOC))
-#else
-#define gen_rtx_ASM_INPUT(MODE, ARG0)                          \
-  gen_rtx_fmt_ssi (ASM_INPUT, (MODE), (ARG0), "", 0)
-#define gen_rtx_ASM_INPUT_loc(MODE, ARG0, LOC)                 \
-  gen_rtx_fmt_ssi (ASM_INPUT, (MODE), (ARG0), (LOC).file, (LOC).line)
-#undef gen_rtx_ASM_OPERANDS
-#define gen_rtx_ASM_OPERANDS(MODE, ARG0, ARG1, ARG2, ARG3, ARG4, LOC) \
-  gen_rtx_fmt_ssiEEsi (ASM_OPERANDS, (MODE), (ARG0), (ARG1), (ARG2), (ARG3), (ARG4), (LOC).file, (LOC).line)
-#endif
 #endif
 
 /* There are some RTL codes that require special attention; the
@@ -2093,6 +2083,7 @@ extern void emit_insn_at_entry (rtx);
 extern void delete_insn_chain (rtx, rtx, bool);
 extern rtx unlink_insn_chain (rtx, rtx);
 extern rtx delete_insn_and_edges (rtx);
+extern void delete_insn_chain_and_edges (rtx, rtx);
 extern rtx gen_lowpart_SUBREG (enum machine_mode, rtx);
 extern rtx gen_const_mem (enum machine_mode, rtx);
 extern rtx gen_frame_mem (enum machine_mode, rtx);