/* This file contains the definitions and documentation for the
Register Transfer Expressions (rtx's) that make up the
Register Transfer Language (rtl) used in the Back End of the GNU compiler.
- Copyright (C) 1987-2013 Free Software Foundation, Inc.
+ Copyright (C) 1987-2015 Free Software Foundation, Inc.
This file is part of GCC.
/* Used in the cselib routines to describe a value. Objects of this
kind are only allocated in cselib.c, in an alloc pool instead of in
- GC memory. The only operand of a VALUE is a cselib_val_struct.
+ GC memory. The only operand of a VALUE is a cselib_val.
var-tracking requires this to have a distinct integral value from
DECL codes in trees. */
DEF_RTL_EXPR(VALUE, "value", "0", RTX_OBJ)
---------------------------------------------------------------------- */
/* An annotation for variable assignment tracking. */
-DEF_RTL_EXPR(DEBUG_INSN, "debug_insn", "iuuBeiie", RTX_INSN)
+DEF_RTL_EXPR(DEBUG_INSN, "debug_insn", "uuBeiie", RTX_INSN)
/* An instruction that cannot jump. */
-DEF_RTL_EXPR(INSN, "insn", "iuuBeiie", RTX_INSN)
+DEF_RTL_EXPR(INSN, "insn", "uuBeiie", RTX_INSN)
/* An instruction that can possibly jump.
Fields ( rtx->u.fld[] ) have exact same meaning as INSN's. */
-DEF_RTL_EXPR(JUMP_INSN, "jump_insn", "iuuBeiie0", RTX_INSN)
+DEF_RTL_EXPR(JUMP_INSN, "jump_insn", "uuBeiie0", RTX_INSN)
/* An instruction that can possibly call a subroutine
but which will not change which instruction comes next
in the current function.
Field ( rtx->u.fld[8] ) is CALL_INSN_FUNCTION_USAGE.
All other fields ( rtx->u.fld[] ) have exact same meaning as INSN's. */
-DEF_RTL_EXPR(CALL_INSN, "call_insn", "iuuBeiiee", RTX_INSN)
+DEF_RTL_EXPR(CALL_INSN, "call_insn", "uuBeiiee", RTX_INSN)
/* Placeholder for tablejump JUMP_INSNs. The pattern of this kind
of rtx is always either an ADDR_VEC or an ADDR_DIFF_VEC. These
placeholders do not appear as real instructions inside a basic
block, but are considered active_insn_p instructions for historical
reasons, when jump table data was represented with JUMP_INSNs. */
-DEF_RTL_EXPR(JUMP_TABLE_DATA, "jump_table_data", "iuuBe0000", RTX_INSN)
+DEF_RTL_EXPR(JUMP_TABLE_DATA, "jump_table_data", "uuBe0000", RTX_INSN)
/* A marker that indicates that control will not flow through. */
-DEF_RTL_EXPR(BARRIER, "barrier", "iuu00000", RTX_EXTRA)
+DEF_RTL_EXPR(BARRIER, "barrier", "uu00000", RTX_EXTRA)
/* Holds a label that is followed by instructions.
Operand:
- 4: is used in jump.c for the use-count of the label.
- 5: is used in the sh backend.
- 6: is a number that is unique in the entire compilation.
- 7: is the user-given name of the label, if any. */
-DEF_RTL_EXPR(CODE_LABEL, "code_label", "iuuB00is", RTX_EXTRA)
+ 3: is used in jump.c for the use-count of the label.
+ 4: is used in the sh backend.
+ 5: is a number that is unique in the entire compilation.
+ 6: is the user-given name of the label, if any. */
+DEF_RTL_EXPR(CODE_LABEL, "code_label", "uuB00is", RTX_EXTRA)
/* Say where in the code a source line starts, for symbol table's sake.
Operand:
- 4: note-specific data
- 5: enum insn_note
- 6: unique number if insn_note == note_insn_deleted_label. */
-DEF_RTL_EXPR(NOTE, "note", "iuuB0ni", RTX_EXTRA)
+ 3: note-specific data
+ 4: enum insn_note
+ 5: unique number if insn_note == note_insn_deleted_label. */
+DEF_RTL_EXPR(NOTE, "note", "uuB0ni", RTX_EXTRA)
/* ----------------------------------------------------------------------
Top level constituents of INSN, JUMP_INSN and CALL_INSN.
/* numeric integer constant */
DEF_RTL_EXPR(CONST_INT, "const_int", "w", RTX_CONST_OBJ)
+/* numeric integer constant */
+DEF_RTL_EXPR(CONST_WIDE_INT, "const_wide_int", "", RTX_CONST_OBJ)
+
/* fixed-point constant */
DEF_RTL_EXPR(CONST_FIXED, "const_fixed", "www", RTX_CONST_OBJ)
/* A register. The "operand" is the register number, accessed with
the REGNO macro. If this number is less than FIRST_PSEUDO_REGISTER
than a hardware register is being referred to. The second operand
- holds the original register number - this will be different for a
- pseudo register that got turned into a hard register. The third
- operand points to a reg_attrs structure.
+ points to a reg_attrs structure.
This rtx needs to have as many (or more) fields as a MEM, since we
can change REG rtx's into MEMs during reload. */
-DEF_RTL_EXPR(REG, "reg", "i00", RTX_OBJ)
+DEF_RTL_EXPR(REG, "reg", "r", RTX_OBJ)
/* A scratch register. This represents a register used only within a
- single insn. It will be turned into a REG during register allocation
+ single insn. It will be replaced by a REG during register allocation
or reload unless the constraint indicates that the register won't be
- needed, in which case it can remain a SCRATCH. This code is
- marked as having one operand so it can be turned into a REG. */
-DEF_RTL_EXPR(SCRATCH, "scratch", "0", RTX_OBJ)
+ needed, in which case it can remain a SCRATCH. */
+DEF_RTL_EXPR(SCRATCH, "scratch", "", RTX_OBJ)
/* A reference to a part of another value. The first operand is the
complete value and the second is the byte offset of the selected part. */
/* Reference to a named label:
Operand 0: label name
- Operand 1: flags (see SYMBOL_FLAG_* in rtl.h)
- Operand 2: tree from which this symbol is derived, or null.
+ Operand 1: tree from which this symbol is derived, or null.
This is either a DECL node, or some kind of constant. */
-DEF_RTL_EXPR(SYMBOL_REF, "symbol_ref", "s00", RTX_CONST_OBJ)
+DEF_RTL_EXPR(SYMBOL_REF, "symbol_ref", "s0", RTX_CONST_OBJ)
/* The condition code register is represented, in our imagination,
as a register holding a value that can be compared to zero.
DEF_RTL_EXPR(FMA, "fma", "eee", RTX_TERNARY)
/* Information about the variable and its location. */
-/* Changed 'te' to 'tei'; the 'i' field is for recording
- initialization status of variables. */
-DEF_RTL_EXPR(VAR_LOCATION, "var_location", "tei", RTX_EXTRA)
+DEF_RTL_EXPR(VAR_LOCATION, "var_location", "te", RTX_EXTRA)
/* Used in VAR_LOCATION for a pointer to a decl that is no longer
addressable. */
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