diff mbox series

[3/3,ARC] Remove munalign-prob-threshold.

Message ID 20200303094046.1439895-3-claziss@gmail.com
State New
Headers show
Series [1/3,ARC] Remove mmixed-code option. | expand

Commit Message

Claudiu Zissulescu March 3, 2020, 9:40 a.m. UTC 
The munalign-prob-threshold option is obsolete, remove it.

gcc/
xxxx-xx-xx  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/arc.opt (munalign-prob-threshold): Remove option.
	* doc/invoke.texi (ARC): Remove munalign-prob-threshold doc.
	* config/arc/arc.c (arc_unalign_branch_p): Remove unused function.
---
 gcc/config/arc/arc.c   | 23 -----------------------
 gcc/config/arc/arc.opt |  6 ------
 gcc/doc/invoke.texi    | 11 +----------
 3 files changed, 1 insertion(+), 39 deletions(-)
diff mbox series

Patch

diff --git a/gcc/config/arc/arc.c b/gcc/config/arc/arc.c
index c57febd3783..af26e5b9711 100644
--- a/gcc/config/arc/arc.c
+++ b/gcc/config/arc/arc.c
@@ -9920,29 +9920,6 @@  gen_acc2 (void)
   return gen_rtx_REG (SImode, TARGET_BIG_ENDIAN ? 57: 56);
 }
 
-/* FIXME: a parameter should be added, and code added to final.c,
-   to reproduce this functionality in shorten_branches.  */
-#if 0
-/* Return nonzero iff BRANCH should be unaligned if possible by upsizing
-   a previous instruction.  */
-int
-arc_unalign_branch_p (rtx branch)
-{
-  rtx note;
-
-  if (!TARGET_UNALIGN_BRANCH)
-    return 0;
-  /* Do not do this if we have a filled delay slot.  */
-  if (get_attr_delay_slot_filled (branch) == DELAY_SLOT_FILLED_YES
-      && !NEXT_INSN (branch)->deleted ())
-    return 0;
-  note = find_reg_note (branch, REG_BR_PROB, 0);
-  return (!note
-	  || (arc_unalign_prob_threshold && !br_prob_note_reliable_p (note))
-	  || INTVAL (XEXP (note, 0)) < arc_unalign_prob_threshold);
-}
-#endif
-
 /* When estimating sizes during arc_reorg, when optimizing for speed, there
    are three reasons why we need to consider branches to be length 6:
    - annull-false delay slot insns are implemented using conditional execution,
diff --git a/gcc/config/arc/arc.opt b/gcc/config/arc/arc.opt
index a8af5138183..244c3abd86d 100644
--- a/gcc/config/arc/arc.opt
+++ b/gcc/config/arc/arc.opt
@@ -287,12 +287,6 @@  mmul32x16
 Target Report Mask(MULMAC_32BY16_SET)
 Generate 32x16 multiply and mac instructions.
 
-; the initializer is supposed to be: Init(REG_BR_PROB_BASE/2) ,
-; alas, basic-block.h is not included in options.c .
-munalign-prob-threshold=
-Target RejectNegative Joined UInteger Var(arc_unalign_prob_threshold) Init(10000/2)
-Set probability threshold for unaligning branches.
-
 mmedium-calls
 Target Var(TARGET_MEDIUM_CALLS) Init(TARGET_MMEDIUM_CALLS_DEFAULT)
 Don't use less than 25 bit addressing range for calls.
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 802d36d4098..51c2d6d04de 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -729,7 +729,7 @@  Objective-C and Objective-C++ Dialects}.
 -mlra-priority-compact mlra-priority-noncompact  -mmillicode @gol
 -mq-class  -mRcq  -mRcw  -msize-level=@var{level} @gol
 -mtune=@var{cpu}  -mmultcost=@var{num}  -mcode-density-frame @gol
--munalign-prob-threshold=@var{probability}  -mmpy-option=@var{multo} @gol
+-mmpy-option=@var{multo} @gol
 -mdiv-rem  -mcode-density  -mll64  -mfpu=@var{fpu}  -mrf16  -mbranch-index}
 
 @emph{ARM Options}
@@ -18031,15 +18031,6 @@  Tune for ARC4x release 3.10a.
 Cost to assume for a multiply instruction, with @samp{4} being equal to a
 normal instruction.
 
-@item -munalign-prob-threshold=@var{probability}
-@opindex munalign-prob-threshold
-Set probability threshold for unaligning branches.
-When tuning for @samp{ARC700} and optimizing for speed, branches without
-filled delay slot are preferably emitted unaligned and long, unless
-profiling indicates that the probability for the branch to be taken
-is below @var{probability}.  @xref{Cross-profiling}.
-The default is (REG_BR_PROB_BASE/2), i.e.@: 5000.
-
 @end table
 
 The following options are maintained for backward compatibility, but