diff options
Diffstat (limited to '0194-Backport-SME-aarch64-Simplify-top-of-frame-allocatio.patch')
| -rw-r--r-- | 0194-Backport-SME-aarch64-Simplify-top-of-frame-allocatio.patch | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/0194-Backport-SME-aarch64-Simplify-top-of-frame-allocatio.patch b/0194-Backport-SME-aarch64-Simplify-top-of-frame-allocatio.patch new file mode 100644 index 0000000..f671841 --- /dev/null +++ b/0194-Backport-SME-aarch64-Simplify-top-of-frame-allocatio.patch @@ -0,0 +1,58 @@ +From 4b8f3f194e68d0d411eaa6692699d8e5e2b4217d Mon Sep 17 00:00:00 2001 +From: Richard Sandiford <richard.sandiford@arm.com> +Date: Tue, 12 Sep 2023 16:05:09 +0100 +Subject: [PATCH 095/157] [Backport][SME] aarch64: Simplify top of frame + allocation + +Reference: https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=bc9dcdde80915d7585a21daa2b69f4adf4a1e3c1 + +After previous patches, it no longer really makes sense to allocate +the top of the frame in terms of varargs_and_saved_regs_size and +saved_regs_and_above. + +gcc/ + * config/aarch64/aarch64.cc (aarch64_layout_frame): Simplify + the allocation of the top of the frame. +--- + gcc/config/aarch64/aarch64.cc | 23 ++++++++--------------- + 1 file changed, 8 insertions(+), 15 deletions(-) + +diff --git a/gcc/config/aarch64/aarch64.cc b/gcc/config/aarch64/aarch64.cc +index df8a83b04..3329aa364 100644 +--- a/gcc/config/aarch64/aarch64.cc ++++ b/gcc/config/aarch64/aarch64.cc +@@ -8925,23 +8925,16 @@ aarch64_layout_frame (void) + + frame.saved_regs_size = offset - frame.bytes_below_saved_regs; + +- poly_int64 varargs_and_saved_regs_size +- = frame.saved_regs_size + frame.saved_varargs_size; +- +- poly_int64 saved_regs_and_above +- = aligned_upper_bound (varargs_and_saved_regs_size +- + get_frame_size (), +- STACK_BOUNDARY / BITS_PER_UNIT); +- +- frame.bytes_above_hard_fp +- = saved_regs_and_above - frame.below_hard_fp_saved_regs_size; ++ offset += get_frame_size (); ++ offset = aligned_upper_bound (offset, STACK_BOUNDARY / BITS_PER_UNIT); ++ auto top_of_locals = offset; + +- /* Both these values are already aligned. */ +- gcc_assert (multiple_p (frame.bytes_below_saved_regs, +- STACK_BOUNDARY / BITS_PER_UNIT)); +- frame.frame_size = saved_regs_and_above + frame.bytes_below_saved_regs; ++ offset += frame.saved_varargs_size; ++ gcc_assert (multiple_p (offset, STACK_BOUNDARY / BITS_PER_UNIT)); ++ frame.frame_size = offset; + +- frame.bytes_above_locals = frame.saved_varargs_size; ++ frame.bytes_above_hard_fp = frame.frame_size - frame.bytes_below_hard_fp; ++ frame.bytes_above_locals = frame.frame_size - top_of_locals; + + frame.initial_adjust = 0; + frame.final_adjust = 0; +-- +2.33.0 + |