target.def (compute_frame_layout): New optional target hook.

[gcc.git] / gcc / doc / tm.texi.in

diff --git a/gcc/doc/tm.texi.in b/gcc/doc/tm.texi.in
index ea74d37fa9a36af3b40471bcb8b248daf84234e1..dff6cf8e038701215ab81d0ac153231a68554adb 100644 (file)
--- a/gcc/doc/tm.texi.in
+++ b/gcc/doc/tm.texi.in
@@ -990,13 +990,15 @@ structure and union fields only, unless the field alignment has been set
 by the @code{__attribute__ ((aligned (@var{n})))} construct.
 @end defmac
 
-@defmac ADJUST_FIELD_ALIGN (@var{field}, @var{computed})
-An expression for the alignment of a structure field @var{field} if the
-alignment computed in the usual way (including applying of
-@code{BIGGEST_ALIGNMENT} and @code{BIGGEST_FIELD_ALIGNMENT} to the
+@defmac ADJUST_FIELD_ALIGN (@var{field}, @var{type}, @var{computed})
+An expression for the alignment of a structure field @var{field} of
+type @var{type} if the alignment computed in the usual way (including
+applying of @code{BIGGEST_ALIGNMENT} and @code{BIGGEST_FIELD_ALIGNMENT} to the
 alignment) is @var{computed}.  It overrides alignment only if the
 field alignment has not been set by the
-@code{__attribute__ ((aligned (@var{n})))} construct.
+@code{__attribute__ ((aligned (@var{n})))} construct.  Note that @var{field}
+may be @code{NULL_TREE} in case we just query for the minimum alignment
+of a field of type @var{type} in structure context.
 @end defmac
 
 @defmac MAX_STACK_ALIGNMENT
@@ -2302,7 +2304,7 @@ force @var{x} into a memory location.  For example, rs6000 can load
 immediate values into general-purpose registers, but does not have an
 instruction for loading an immediate value into a floating-point
 register, so @code{PREFERRED_RELOAD_CLASS} returns @code{NO_REGS} when
-@var{x} is a floating-point constant.  If the constant can't be loaded
+@var{x} is a floating-point constant.  If the constant cannot be loaded
 into any kind of register, code generation will be better if
 @code{TARGET_LEGITIMATE_CONSTANT_P} makes the constant illegitimate instead
 of using @code{TARGET_PREFERRED_RELOAD_CLASS}.
@@ -2324,7 +2326,7 @@ to use when it is necessary to be able to hold a value of mode
 ordinarily be used.
 
 Unlike @code{PREFERRED_RELOAD_CLASS}, this macro should be used when
-there are certain modes that simply can't go in certain reload classes.
+there are certain modes that simply cannot go in certain reload classes.
 
 The value is a register class; perhaps @var{class}, or perhaps another,
 smaller class.
@@ -3211,6 +3213,8 @@ such as the result of @code{get_frame_size ()} and the tables of
 registers @code{df_regs_ever_live_p} and @code{call_used_regs}.
 @end defmac
 
+@hook TARGET_COMPUTE_FRAME_LAYOUT
+
 @node Stack Arguments
 @subsection Passing Function Arguments on the Stack
 @cindex arguments on stack
@@ -4794,6 +4798,8 @@ Define this macro if a non-short-circuit operation produced by
 
 @hook TARGET_MAX_NOCE_IFCVT_SEQ_COST
 
+@hook TARGET_NOCE_CONVERSION_PROFITABLE_P
+
 @hook TARGET_NO_SPECULATION_IN_DELAY_SLOTS_P
 
 @node Scheduling
@@ -4882,6 +4888,8 @@ them: try the first ones in this list first.
 
 @hook TARGET_SCHED_SET_SCHED_FLAGS
 
+@hook TARGET_SCHED_CAN_SPECULATE_INSN
+
 @hook TARGET_SCHED_SMS_RES_MII
 
 @hook TARGET_SCHED_DISPATCH
@@ -7262,7 +7270,7 @@ floating point operations, but to perform a single precision operation,
 the FPSCR PR bit has to be cleared, while for a double precision
 operation, this bit has to be set.  Changing the PR bit requires a general
 purpose register as a scratch register, hence these FPSCR sets have to
-be inserted before reload, i.e.@: you can't put this into instruction emitting
+be inserted before reload, i.e.@: you cannot put this into instruction emitting
 or @code{TARGET_MACHINE_DEPENDENT_REORG}.
 
 You can have multiple entities that are mode-switched, and select at run time