From 2b983f9064d808daf909bde1d4a13980934a7e6e Mon Sep 17 00:00:00 2001 From: Richard Sandiford Date: Tue, 12 Sep 2023 16:08:51 +0100 Subject: [PATCH 16/28] 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.cc (aarch64_expand_prologue): Move the calculation of chain_offset into the emit_frame_chain block. --- gcc/config/aarch64/aarch64.cc | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/gcc/config/aarch64/aarch64.cc b/gcc/config/aarch64/aarch64.cc index e79551af41df..d71a042d6112 100644 --- a/gcc/config/aarch64/aarch64.cc +++ b/gcc/config/aarch64/aarch64.cc @@ -9747,16 +9747,16 @@ 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; -- 2.42.0