diff options
| author | H.J. Lu <hjl.tools@gmail.com> | 2017-09-23 13:26:50 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2017-09-24 14:50:06 -0700 |
| commit | 28e556981bb0304d695eb4dfc1b7232919e5cdd6 (patch) | |
| tree | 3e585af1fbdf1d3ac7aa5ce1078598a5d42689d5 /libffi | |
| parent | c7c38fb150f8c6bbee3e010098f1dd88baa054e4 (diff) | |
| download | gcc-hjl/pr82267/gcc-7-branch.tar.gz | |
x32: Encode %esp as %rsp to avoid 0x67 prefixhjl/pr82267/gcc-7-branch
Since the upper 32 bits of stack register are always zero for x32, we
can encode %esp as %rsp to avoid 0x67 prefix in address if there is no
index or base register.
Back port from mainline r253127.
gcc/
2017-09-24 Uros Bizjak <ubizjak@gmail.com>
PR target/82267
* config/i386/i386.c (ix86_print_operand_address_as): Encode
%esp as %rsp to avoid 0x67 prefix if there is no index or base
register.
gcc/testsuite/
2017-09-24 H.J. Lu <hongjiu.lu@intel.com>
PR target/82267
* gcc.target/i386/pr82267.c: New tests.
Diffstat (limited to 'libffi')
0 files changed, 0 insertions, 0 deletions