1 files changed, 43 insertions, 0 deletions
diff --git a/0110-aarch64-Only-calculate-chain_offset-if-there-is-a-chain.patch b/0110-aarch64-Only-calculate-chain_offset-if-there-is-a-chain.patch
new file mode 100644
index 0000000..407924e
--- /dev/null
+++ b/0110-aarch64-Only-calculate-chain_offset-if-there-is-a-chain.patch
@@ -0,0 +1,43 @@
+From 176001612860c2b04133c1de26eb673860800865 Mon Sep 17 00:00:00 2001
+From: Richard Sandiford <richard.sandiford@arm.com>
+Date: Tue, 27 Jun 2023 11:24:27 +0100
+Subject: [PATCH] aarch64: Only calculate chain_offset if there is a chain
+
+After previous patches, it is no longer necessary to calculate
+a chain_offset in cases where there is no chain record.
+
+gcc/
+	* config/aarch64/aarch64.c (aarch64_expand_prologue): Move the
+	calculation of chain_offset into the emit_frame_chain block.
+---
+ gcc/config/aarch64/aarch64.c | 10 +++++-----
+ 1 file changed, 5 insertions(+), 5 deletions(-)
+
+diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c
+index 884002e3b7b..69cfa4b86a6 100644
+--- a/gcc/config/aarch64/aarch64.c
++++ b/gcc/config/aarch64/aarch64.c
+@@ -8372,16 +8372,16 @@ aarch64_expand_prologue (void)
+   if (callee_adjust != 0)
+     aarch64_push_regs (reg1, reg2, callee_adjust);
+ 
+-  /* The offset of the frame chain record (if any) from the current SP.  */
+-  poly_int64 chain_offset = (initial_adjust + callee_adjust
+-			     - frame.hard_fp_offset);
+-  gcc_assert (known_ge (chain_offset, 0));
+-
+   /* The offset of the current SP from the bottom of the static frame.  */
+   poly_int64 bytes_below_sp = frame_size - initial_adjust - callee_adjust;
+ 
+   if (emit_frame_chain)
+     {
++      /* The offset of the frame chain record (if any) from the current SP.  */
++      poly_int64 chain_offset = (initial_adjust + callee_adjust
++				 - frame.hard_fp_offset);
++      gcc_assert (known_ge (chain_offset, 0));
++
+       if (callee_adjust == 0)
+ 	{
+ 	  reg1 = R29_REGNUM;
+-- 
+2.39.3