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rtl.texi (RTX_FRAME_RELATED_P): Add documentation.

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Thu Mar 25 14:04:54 EST 1999  Andrew MacLeod  <amacleod@cygnus.com>
	* rtl.texi (RTX_FRAME_RELATED_P): Add documentation.
	* rtl.h (struct rtx_def): Update comment for frame_related field.
	(set_unique_reg_note): Declare prototype.
	* dwarf2out.c (dwarf2out_frame_debug_expr): Split out from
	'dwarf2out_frame_debug' to handle only expressions, and process
	component parts of a PARALLEL expression.
	(dwarf2out_frame_debug): Process insns only, and call
	new function 'dwarf2out_frame_debug_expr' for patterns.
	* emit-rtl.c (set_unique_reg_note): New function to add a reg note,
	but if there is an existingone, deletes it first.
	* expmed.c (expand_mult, expand_divmod): Use set_unique_reg_note.
	* optabs.c (add_equal_note, expand_binop): Use set_unique_reg_note.
	(emit_no_conflict_block, emit_libcall_block): Use set_unique_reg_note.
	(expand_fix):  Use set_unique_reg_note.

From-SVN: r25976
This commit is contained in:
Andrew Macleod 1999-03-25 12:04:19 +00:00
parent 0a4b90568d
commit 2b4b3e5f21
1 changed files with 7 additions and 0 deletions
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@ -405,6 +405,13 @@ other functions or by aliasing.) Stored in the
Nonzero in an insn if it resulted from an in-line function call.
Stored in the @code{integrated} field and printed as @samp{/i}.
@findex RTX_FRAME_RELATED_P
@item RTX_FRAME_RELATED_P (@var{x})
Nonzero in an insn or expression which is part of a function
prologue and sets the stack pointer, sets the frame pointer, or saves a
register. This flag is required for exception handling support
on targets with RTL prologues.
@findex SYMBOL_REF_USED
@cindex @code{used}, in @code{symbol_ref}
@item SYMBOL_REF_USED (@var{x})