* doc/tm.texi.in (TARGET_CLASS_LIKELY_SPILLED_P): Update documentation.

	* doc/tm.texi: Regenerate.
	* regs.h (REG_LIVE_LENGTH): Update comments to not refer to no longer
	existing files global.c and local-alloc.c.
	* regmove.c (copy_src_to_dest): Likewise.
	* function.h (struct rtl_data): Likewise.
	* ira-color.c (allocno_priority_compare_func): Likewise.
	* regstat.c (regstat_compute_ri): Likewise.
	* config/epiphany/epiphany.h, config/vax/vax.h, config/cris/cris.h,
	config/h8300/h8300.h, config/alpha/alpha.h, config/sparc/sparc.h,
	config/rs6000/rs6000.h, config/pdp11/pdp11.h, config/pa/pa.h,
	config/v850/v850.h, config/mn10300/mn10300.h, config/m32r/m32r.h,
	config/i386/i386.h, config/mcore/mcore.h, config/sh/sh.h,
	config/arm/arm.h (REGNO_OK_FOR_BASE_P): Likewise.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@194229 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 11 insertions, 15 deletions

diff --git a/gcc/regs.h b/gcc/regs.h
index 4c9d7a6ce42..adc9384b62e 100644
--- a/gcc/regs.h
+++ b/gcc/regs.h
@@ -176,21 +176,17 @@ extern size_t reg_info_p_size;
 
 #define REG_N_THROWING_CALLS_CROSSED(N) (reg_info_p[N].throw_calls_crossed)
 
-/* Total number of instructions at which (REG n) is live.  The larger
-   this is, the less priority (REG n) gets for allocation in a hard
-   register (in global-alloc).  This is set in df-problems.c whenever
-   register info is requested and remains valid for the rest of the
-   compilation of the function; it is used to control register
-   allocation.
-
-   local-alloc.c may alter this number to change the priority.
-
-   Negative values are special.
-   -1 is used to mark a pseudo reg which has a constant or memory equivalent
-   and is used infrequently enough that it should not get a hard register.
-   -2 is used to mark a pseudo reg for a parameter, when a frame pointer
-   is not required.  global.c makes an allocno for this but does
-   not try to assign a hard register to it.  */
+/* Total number of instructions at which (REG n) is live.
+   
+   This is set in regstat.c whenever register info is requested and
+   remains valid for the rest of the compilation of the function; it is
+   used to control register allocation.  The larger this is, the less
+   priority (REG n) gets for allocation in a hard register (in IRA in
+   priority-coloring mode).
+
+   Negative values are special: -1 is used to mark a pseudo reg that
+   should not be allocated to a hard register, because it crosses a
+   setjmp call.  */
 
 #define REG_LIVE_LENGTH(N)  (reg_info_p[N].live_length)