These names are stored in rtx_name[].
By convention these are the internal (field 1) names in lower_case.
- 3. The print format, and type of each rtx->fld[] (field) in this rtx.
+ 3. The print format, and type of each rtx->u.fld[] (field) in this rtx.
These formats are stored in rtx_format[].
The meaning of the formats is documented in front of this array in rtl.c
attribute name and the second is the comparison value. */
DEF_RTL_EXPR(EQ_ATTR, "eq_attr", "ss", 'x')
+/* A special case of the above representing a set of alternatives. The first
+ operand is bitmap of the set, the second one is the default value. */
+DEF_RTL_EXPR(EQ_ATTR_ALT, "eq_attr_alt", "ii", 'x')
+
/* A conditional expression which is true if the specified flag is
true for the insn being scheduled in reorg.
All formats must start with "iuu" to handle the chain.
Each insn expression holds an rtl instruction and its semantics
during back-end processing.
- See macros's in "rtl.h" for the meaning of each rtx->fld[].
+ See macros's in "rtl.h" for the meaning of each rtx->u.fld[].
---------------------------------------------------------------------- */
DEF_RTL_EXPR(INSN, "insn", "iuuBieiee", 'i')
/* An instruction that can possibly jump.
- Fields ( rtx->fld[] ) have exact same meaning as INSN's. */
+ Fields ( rtx->u.fld[] ) have exact same meaning as INSN's. */
DEF_RTL_EXPR(JUMP_INSN, "jump_insn", "iuuBieiee0", 'i')
/* An instruction that can possibly call a subroutine
but which will not change which instruction comes next
in the current function.
- Field ( rtx->fld[9] ) is CALL_INSN_FUNCTION_USAGE.
- All other fields ( rtx->fld[] ) have exact same meaning as INSN's. */
+ Field ( rtx->u.fld[9] ) 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", "iuuBieieee", 'i')
/* A marker that indicates that control will not flow through. */
/* Holds a label that is followed by instructions.
Operand:
- 5: is used in jump.c for the use-count of the label.
- 6: is used in flow.c to point to the chain of label_ref's to this label.
- 7: is a number that is unique in the entire compilation.
- 8: is the user-given name of the label, if any. */
+ 4: is used in jump.c for the use-count of the label.
+ 5: is used in flow.c to point to the chain of label_ref's to this label.
+ 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", 'x')
/* Say where in the code a source line starts, for symbol table's sake.
Operand:
- 5: filename, if line number > 0, note-specific data otherwise.
- 6: line number if > 0, enum note_insn otherwise.
- 7: unique number if line number == note_insn_deleted_label.
- 8-9: padding so that notes and insns are the same size, and thus
- allocated from the same page ordering. */
-DEF_RTL_EXPR(NOTE, "note", "iuuB0ni00", 'x')
+ 4: filename, if line number > 0, note-specific data otherwise.
+ 5: line number if > 0, enum note_insn otherwise.
+ 6: unique number if line number == note_insn_deleted_label. */
+DEF_RTL_EXPR(NOTE, "note", "iuuB0ni", 'x')
/* ----------------------------------------------------------------------
Top level constituents of INSN, JUMP_INSN and CALL_INSN.
/* Unsigned saturating truncate. */
DEF_RTL_EXPR(US_TRUNCATE, "us_truncate", "e", '1')
-/* The SSA phi operator.
-
- The argument is a vector of 2N rtxes. Element 2N+1 is a CONST_INT
- containing the block number of the predecessor through which control
- has passed when the register at element 2N is used.
-
- Note that PHI may only appear at the beginning of a basic block.
-
- ??? There may be multiple PHI insns, but they are all evaluated
- in parallel. This probably ought to be changed to use a real
- PARALLEL, as that would be less confusing and more in the spirit
- of canonical RTL. It is, however, easier to manipulate this way. */
-DEF_RTL_EXPR(PHI, "phi", "E", 'x')
-
/*
Local variables:
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