slackbuilds_ponce/development/gcc5/patches/0002-i386-Use-reference-of-struct-ix86_frame-to-avoid-cop.diff
Eric Hameleers 786c4c9911 development/gcc5: update to 5.5.0
This re-aligns the gcc5.SlackBuild script with the latest
gcc.SlackBuild in Slackware 14.2.
Retpoline patches are included.

Signed-off-by: Eric Hameleers <alien@slackware.com>

Signed-off-by: Matteo Bernardini <ponce@slackbuilds.org>
2021-04-18 12:22:51 +02:00

72 lines
2.4 KiB
Diff

From 18202ba32cb8de22fc43a5839235a751d0f5c4d9 Mon Sep 17 00:00:00 2001
From: hjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Mon, 15 Jan 2018 11:28:44 +0000
Subject: [PATCH 2/9] i386: Use reference of struct ix86_frame to avoid copy
When there is no need to make a copy of ix86_frame, we can use reference
of struct ix86_frame to avoid copy.
Backport from mainline
* config/i386/i386.c (ix86_can_use_return_insn_p): Use reference
of struct ix86_frame.
(ix86_initial_elimination_offset): Likewise.
(ix86_expand_split_stack_prologue): Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-7-branch@256692 138bc75d-0d04-0410-961f-82ee72b054a4
---
gcc/config/i386/i386.c | 9 +++------
gcc/testsuite/ChangeLog | 8 ++++++++
2 files changed, 11 insertions(+), 6 deletions(-)
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 8133372..397ef7c 100644
--- a/src/gcc/config/i386/i386.c
+++ b/src/gcc/config/i386/i386.c
@@ -11843,8 +11843,6 @@ symbolic_reference_mentioned_p (rtx op)
bool
ix86_can_use_return_insn_p (void)
{
- struct ix86_frame frame;
-
if (! reload_completed || frame_pointer_needed)
return 0;
@@ -11857,7 +11855,7 @@ ix86_can_use_return_insn_p (void)
return 0;
ix86_compute_frame_layout ();
- frame = cfun->machine->frame;
+ struct ix86_frame &frame = cfun->machine->frame;
return (frame.stack_pointer_offset == UNITS_PER_WORD
&& (frame.nregs + frame.nsseregs) == 0);
}
@@ -12344,7 +12342,7 @@ HOST_WIDE_INT
ix86_initial_elimination_offset (int from, int to)
{
ix86_compute_frame_layout ();
- struct ix86_frame frame = cfun->machine->frame;
+ struct ix86_frame &frame = cfun->machine->frame;
if (from == ARG_POINTER_REGNUM && to == HARD_FRAME_POINTER_REGNUM)
return frame.hard_frame_pointer_offset;
@@ -14860,7 +14858,6 @@ static GTY(()) rtx split_stack_fn_large;
void
ix86_expand_split_stack_prologue (void)
{
- struct ix86_frame frame;
HOST_WIDE_INT allocate;
unsigned HOST_WIDE_INT args_size;
rtx_code_label *label;
@@ -14873,7 +14870,7 @@ ix86_expand_split_stack_prologue (void)
ix86_finalize_stack_realign_flags ();
ix86_compute_frame_layout ();
- frame = cfun->machine->frame;
+ struct ix86_frame &frame = cfun->machine->frame;
allocate = frame.stack_pointer_offset - INCOMING_FRAME_SP_OFFSET;
/* This is the label we will branch to if we have enough stack
--
2.7.4