48 lines
1.7 KiB
Diff
48 lines
1.7 KiB
Diff
From c8768dd861538817db8c1955dcce4b6d8ce17c48 Mon Sep 17 00:00:00 2001
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From: Richard Sandiford <richard.sandiford@arm.com>
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Date: Tue, 12 Sep 2023 16:05:07 +0100
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Subject: [PATCH 090/157] [Backport][SME] aarch64: Only calculate chain_offset
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if there is a chain
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Reference: https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=aa8b57ee0206e8e5ac7078692ee67fb6ead05645
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After previous patches, it is no longer necessary to calculate
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a chain_offset in cases where there is no chain record.
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gcc/
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* config/aarch64/aarch64.cc (aarch64_expand_prologue): Move the
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calculation of chain_offset into the emit_frame_chain block.
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---
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gcc/config/aarch64/aarch64.cc | 10 +++++-----
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1 file changed, 5 insertions(+), 5 deletions(-)
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diff --git a/gcc/config/aarch64/aarch64.cc b/gcc/config/aarch64/aarch64.cc
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index a0a4c7ac3..bef6a658b 100644
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--- a/gcc/config/aarch64/aarch64.cc
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+++ b/gcc/config/aarch64/aarch64.cc
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@@ -10357,16 +10357,16 @@ aarch64_expand_prologue (void)
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if (callee_adjust != 0)
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aarch64_push_regs (reg1, reg2, callee_adjust);
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- /* The offset of the frame chain record (if any) from the current SP. */
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- poly_int64 chain_offset = (initial_adjust + callee_adjust
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- - frame.hard_fp_offset);
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- gcc_assert (known_ge (chain_offset, 0));
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-
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/* The offset of the current SP from the bottom of the static frame. */
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poly_int64 bytes_below_sp = frame_size - initial_adjust - callee_adjust;
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if (emit_frame_chain)
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{
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+ /* The offset of the frame chain record (if any) from the current SP. */
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+ poly_int64 chain_offset = (initial_adjust + callee_adjust
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+ - frame.hard_fp_offset);
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+ gcc_assert (known_ge (chain_offset, 0));
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+
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if (callee_adjust == 0)
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{
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reg1 = R29_REGNUM;
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--
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2.33.0
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