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[AArch64/GCC][18/N] Optimize epilogue when there is no frame pointer
- From: Jiong Wang <jiong dot wang at arm dot com>
- To: "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>
- Date: Thu, 24 Jul 2014 13:46:45 +0100
- Subject: [AArch64/GCC][18/N] Optimize epilogue when there is no frame pointer
- Authentication-results: sourceware.org; auth=none
Like [17/N], we do same optimization on epilogue for !frame_pointer_needed.
this is the last of this aarch64 stack patch set.
Improved testcases:
gcc.target/aarch64/test_frame_1.c
gcc.target/aarch64/test_frame_2.c
gcc.target/aarch64/test_frame_4.c
gcc.target/aarch64/test_frame_6.c
gcc.target/aarch64/test_frame_7.c
gcc.target/aarch64/test_frame_8.c
gcc.target/aarch64/test_frame_10.c
ok for install?
thanks.
gcc/
* config/aarch64/aarch64.c (aarch64_popwb_single_reg): New function.
(aarch64_expand_epilogue): Optimize epilogue when !frame_pointer_needed.
gcc/testsuite/
* gcc.target/aarch64/test_frame_1.c: Match optimized instruction sequences.
* gcc.target/aarch64/test_frame_2.c: Likewise.
* gcc.target/aarch64/test_frame_4.c: Likewise.
* gcc.target/aarch64/test_frame_6.c: Likewise.
* gcc.target/aarch64/test_frame_7.c: Likewise.
* gcc.target/aarch64/test_frame_8.c: Likewise.
* gcc.target/aarch64/test_frame_10.c: Likewise.