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| author | H.J. Lu <hjl.tools@gmail.com> | 2024-04-01 10:03:11 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2024-04-10 20:24:41 -0700 |
| commit | bf649e72d3d5bc0784080438f550095d71769904 (patch) | |
| tree | 828e90c9fd35bb83611bd91adb39e760f3af85be /gdbsupport/gdb_obstack.h | |
| parent | 533da9536e6e4d65f0623ede93365f7229779f54 (diff) | |
| download | binutils-bf649e72d3d5bc0784080438f550095d71769904.zip binutils-bf649e72d3d5bc0784080438f550095d71769904.tar.gz binutils-bf649e72d3d5bc0784080438f550095d71769904.tar.bz2 | |
x86-64: Use long NOPs for Intel Core processors
Use long NOPs for Intel Core processors since they are faster than
multiple NOPs. Don't use them for 64-bit processors by default since
Intel Atom processors can only decode 4 prefixes in 1 cycle.
* config/tc-i386.c (alt64_9): New.
(alt64_10): Likewise.
(alt64_11): Likewise.
(alt64_12): Likewise.
(alt64_13): Likewise.
(alt64_14): Likewise.
(alt64_15): Likewise.
(alt64_patt): Likewise.
(i386_generate_nops): Use alt64_patt for Intel Core processors
in 64-bit mode.
* testsuite/gas/i386/x86-64-nops-1-core2.d: Expect long NOPs.
* testsuite/gas/i386/x86-64-nops-4-core2.d: Likewise.
* testsuite/gas/i386/ilp32/x86-64-nops-1-core2.d: Replace
../x86-64-nops-1.d with ../x86-64-nops-1-core2.d.
* testsuite/gas/i386/ilp32/x86-64-nops-4-core2.d: Replace
../x86-64-nops-4.d with ../x86-64-nops-4-core2.d.
Diffstat (limited to 'gdbsupport/gdb_obstack.h')
0 files changed, 0 insertions, 0 deletions