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| author | H.J. Lu <hongjiu.lu@intel.com> | 2017-08-10 15:29:05 +0000 |
|---|---|---|
| committer | H.J. Lu <hjl@gcc.gnu.org> | 2017-08-10 08:29:05 -0700 |
| commit | 8e941ae950ddce1745b4d6819a7131908dd7de24 (patch) | |
| tree | 2676fe73d98e3af6afa9d71fb86c96914dda7181 /gcc/print-tree.c | |
| parent | 798f86281b19395a9f64bfd5def1c12952c4ba05 (diff) | |
| download | gcc-8e941ae950ddce1745b4d6819a7131908dd7de24.zip gcc-8e941ae950ddce1745b4d6819a7131908dd7de24.tar.gz gcc-8e941ae950ddce1745b4d6819a7131908dd7de24.tar.bz2 | |
i386: Don't use frame pointer without stack access
When there is no stack access, there is no need to use frame pointer
even if -fno-omit-frame-pointer is used and caller's frame pointer is
unchanged.
gcc/
PR target/81736
* config/i386/i386.c (ix86_finalize_stack_realign_flags): Renamed
to ...
(ix86_finalize_stack_frame_flags): This. Also clear
frame_pointer_needed if -fno-omit-frame-pointer is used without
stack access.
(ix86_expand_prologue): Replace ix86_finalize_stack_realign_flags
with ix86_finalize_stack_frame_flags.
(ix86_expand_epilogue): Likewise.
(ix86_expand_split_stack_prologue): Likewise.
* doc/invoke.texi: Add a note for -fno-omit-frame-pointer.
gcc/testsuite/
PR target/81736
* gcc.target/i386/pr81736-1.c: New test.
* gcc.target/i386/pr81736-2.c: Likewise.
* gcc.target/i386/pr81736-3.c: Likewise.
* gcc.target/i386/pr81736-4.c: Likewise.
* gcc.target/i386/pr81736-5.c: Likewise.
* gcc.target/i386/pr81736-6.c: Likewise.
* gcc.target/i386/pr81736-7.c: Likewise.
From-SVN: r251028
Diffstat (limited to 'gcc/print-tree.c')
0 files changed, 0 insertions, 0 deletions