1 files changed, 94 insertions, 0 deletions
diff --git a/0190-Backport-SME-aarch64-Rename-locals_offset-to-bytes_a.patch b/0190-Backport-SME-aarch64-Rename-locals_offset-to-bytes_a.patch
new file mode 100644
index 0000000..8b44c65
--- /dev/null
+++ b/0190-Backport-SME-aarch64-Rename-locals_offset-to-bytes_a.patch
@@ -0,0 +1,94 @@
+From 43dc03de6d608e10d83cc7994d127e3764bfbcf7 Mon Sep 17 00:00:00 2001
+From: Richard Sandiford <richard.sandiford@arm.com>
+Date: Tue, 12 Sep 2023 16:05:07 +0100
+Subject: [PATCH 091/157] [Backport][SME] aarch64: Rename locals_offset to
+ bytes_above_locals
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Reference: https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=28034dbb5e32711d5f4d655576f2499e6f57f854
+
+locals_offset was described as:
+
+  /* Offset from the base of the frame (incomming SP) to the
+     top of the locals area.  This value is always a multiple of
+     STACK_BOUNDARY.  */
+
+This is implicitly an “upside down” view of the frame: the incoming
+SP is at offset 0, and anything N bytes below the incoming SP is at
+offset N (rather than -N).
+
+However, reg_offset instead uses a “right way up” view; that is,
+it views offsets in address terms.  Something above X is at a
+positive offset from X and something below X is at a negative
+offset from X.
+
+Also, even on FRAME_GROWS_DOWNWARD targets like AArch64,
+target-independent code views offsets in address terms too:
+locals are allocated at negative offsets to virtual_stack_vars.
+
+It seems confusing to have *_offset fields of the same structure
+using different polarities like this.  This patch tries to avoid
+that by renaming locals_offset to bytes_above_locals.
+
+gcc/
+	* config/aarch64/aarch64.h (aarch64_frame::locals_offset): Rename to...
+	(aarch64_frame::bytes_above_locals): ...this.
+	* config/aarch64/aarch64.cc (aarch64_layout_frame)
+	(aarch64_initial_elimination_offset): Update accordingly.
+---
+ gcc/config/aarch64/aarch64.cc | 6 +++---
+ gcc/config/aarch64/aarch64.h  | 6 +++---
+ 2 files changed, 6 insertions(+), 6 deletions(-)
+
+diff --git a/gcc/config/aarch64/aarch64.cc b/gcc/config/aarch64/aarch64.cc
+index bef6a658b..992f71bbd 100644
+--- a/gcc/config/aarch64/aarch64.cc
++++ b/gcc/config/aarch64/aarch64.cc
+@@ -8937,7 +8937,7 @@ aarch64_layout_frame (void)
+ 			  STACK_BOUNDARY / BITS_PER_UNIT));
+   frame.frame_size = saved_regs_and_above + frame.bytes_below_saved_regs;
+ 
+-  frame.locals_offset = frame.saved_varargs_size;
++  frame.bytes_above_locals = frame.saved_varargs_size;
+ 
+   frame.initial_adjust = 0;
+   frame.final_adjust = 0;
+@@ -13047,13 +13047,13 @@ aarch64_initial_elimination_offset (unsigned from, unsigned to)
+ 	return frame.hard_fp_offset;
+ 
+       if (from == FRAME_POINTER_REGNUM)
+-	return frame.hard_fp_offset - frame.locals_offset;
++	return frame.hard_fp_offset - frame.bytes_above_locals;
+     }
+ 
+   if (to == STACK_POINTER_REGNUM)
+     {
+       if (from == FRAME_POINTER_REGNUM)
+-	return frame.frame_size - frame.locals_offset;
++	return frame.frame_size - frame.bytes_above_locals;
+     }
+ 
+   return frame.frame_size;
+diff --git a/gcc/config/aarch64/aarch64.h b/gcc/config/aarch64/aarch64.h
+index a1db4f689..2acff9a96 100644
+--- a/gcc/config/aarch64/aarch64.h
++++ b/gcc/config/aarch64/aarch64.h
+@@ -815,10 +815,10 @@ struct GTY (()) aarch64_frame
+      always a multiple of STACK_BOUNDARY.  */
+   poly_int64 bytes_below_hard_fp;
+ 
+-  /* Offset from the base of the frame (incomming SP) to the
+-     top of the locals area.  This value is always a multiple of
++  /* The number of bytes between the top of the locals area and the top
++     of the frame (the incomming SP).  This value is always a multiple of
+      STACK_BOUNDARY.  */
+-  poly_int64 locals_offset;
++  poly_int64 bytes_above_locals;
+ 
+   /* Offset from the base of the frame (incomming SP) to the
+      hard_frame_pointer.  This value is always a multiple of
+-- 
+2.33.0
+