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56 lines
2.0 KiB
Diff
56 lines
2.0 KiB
Diff
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From ff7193c5313d736e20aa66c33abeaf102cc6c152 Mon Sep 17 00:00:00 2001
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From: Richard Sandiford <richard.sandiford@arm.com>
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Date: Fri, 16 Jun 2023 17:44:39 +0100
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Subject: [PATCH 35/42] aarch64: Simplify top of frame allocation
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After previous patches, it no longer really makes sense to allocate
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the top of the frame in terms of varargs_and_saved_regs_size and
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saved_regs_and_above.
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gcc/
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* config/aarch64/aarch64.c (aarch64_layout_frame): Simplify
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the allocation of the top of the frame.
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---
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gcc/config/aarch64/aarch64.c | 23 ++++++++---------------
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1 file changed, 8 insertions(+), 15 deletions(-)
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diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c
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index 1ed335f54879..70542c6e13f5 100644
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--- a/gcc/config/aarch64/aarch64.c
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+++ b/gcc/config/aarch64/aarch64.c
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@@ -7010,23 +7010,16 @@ aarch64_layout_frame (void)
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frame.saved_regs_size = offset - frame.bytes_below_saved_regs;
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- poly_int64 varargs_and_saved_regs_size
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- = frame.saved_regs_size + frame.saved_varargs_size;
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+ offset += get_frame_size ();
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+ offset = aligned_upper_bound (offset, STACK_BOUNDARY / BITS_PER_UNIT);
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+ poly_int64 top_of_locals = offset;
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- poly_int64 saved_regs_and_above
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- = aligned_upper_bound (varargs_and_saved_regs_size
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- + get_frame_size (),
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- STACK_BOUNDARY / BITS_PER_UNIT);
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+ offset += frame.saved_varargs_size;
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+ gcc_assert (multiple_p (offset, STACK_BOUNDARY / BITS_PER_UNIT));
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+ frame.frame_size = offset;
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- frame.bytes_above_hard_fp
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- = saved_regs_and_above - frame.below_hard_fp_saved_regs_size;
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-
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- /* Both these values are already aligned. */
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- gcc_assert (multiple_p (frame.bytes_below_saved_regs,
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- STACK_BOUNDARY / BITS_PER_UNIT));
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- frame.frame_size = saved_regs_and_above + frame.bytes_below_saved_regs;
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-
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- frame.bytes_above_locals = frame.saved_varargs_size;
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+ frame.bytes_above_hard_fp = frame.frame_size - frame.bytes_below_hard_fp;
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+ frame.bytes_above_locals = frame.frame_size - top_of_locals;
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frame.initial_adjust = 0;
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frame.final_adjust = 0;
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--
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2.42.0
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