diff options
| author | Wilco Dijkstra <wdijkstr@arm.com> | 2016-10-21 17:15:22 +0000 |
|---|---|---|
| committer | Wilco Dijkstra <wilco@gcc.gnu.org> | 2016-10-21 17:15:22 +0000 |
| commit | 5be6b295d084ced9540aa738a40cdaac7dd15d4d (patch) | |
| tree | ae80522de55744d04de1bfd5cf8142651fe0dc77 /libgfortran/io/io.h | |
| parent | 4b0685d91591a8493e7fd41f87c8690c675c40d9 (diff) | |
| download | gcc-5be6b295d084ced9540aa738a40cdaac7dd15d4d.zip gcc-5be6b295d084ced9540aa738a40cdaac7dd15d4d.tar.gz gcc-5be6b295d084ced9540aa738a40cdaac7dd15d4d.tar.bz2 | |
Improve stack adjustment by reusing a temporary move immediate from the epilog...
Improve stack adjustment by reusing a temporary move immediate from the epilog
if the register is still valid in the epilog. This generates smaller code for
leaf functions with a stack size of more then 4KB.
gcc/
* config/aarch64/aarch64.c (aarch64_add_constant_internal):
Add extra argument to allow emitting the move immediate.
Use add/sub with positive immediate.
(aarch64_add_constant): Add inline function.
(aarch64_add_sp): Likewise.
(aarch64_sub_sp): Likewise.
(aarch64_expand_prologue): Call aarch64_sub_sp.
(aarch64_expand_epilogue): Call aarch64_add_sp.
Decide when to leave out move.
(aarch64_output_mi_thunk): Call aarch64_add_constant.
testsuite/
* gcc.target/aarch64/test_frame_17.c: New test.
From-SVN: r241420
Diffstat (limited to 'libgfortran/io/io.h')
0 files changed, 0 insertions, 0 deletions