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| author | Jan Beulich <jbeulich@suse.com> | 2019-12-04 10:43:50 +0100 |
|---|---|---|
| committer | Jan Beulich <jbeulich@suse.com> | 2019-12-04 10:43:50 +0100 |
| commit | 319ff62c8ab28c846365aef65c137735f8af88cb (patch) | |
| tree | 1616b77f5058fa02f56b700e9a41064232cae358 | |
| parent | 77ad80922bf3042536fc41b19cc0bf230ea485b4 (diff) | |
| download | gdb-319ff62c8ab28c846365aef65c137735f8af88cb.zip gdb-319ff62c8ab28c846365aef65c137735f8af88cb.tar.gz gdb-319ff62c8ab28c846365aef65c137735f8af88cb.tar.bz2 | |
x86: consolidate tracking of MMX register use
Just like for XMM/YMM/ZMM don't key this to any Cpu* flags. Instead
include the two special insns (not having register operands) explicitly.
| -rw-r--r-- | gas/ChangeLog | 5 | ||||
| -rw-r--r-- | gas/config/tc-i386.c | 12 |
2 files changed, 8 insertions, 9 deletions
diff --git a/gas/ChangeLog b/gas/ChangeLog index b7d305f..dba3faa 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,5 +1,10 @@ 2019-12-04 Jan Beulich <jbeulich@suse.com> + * config/tc-i386.c (output_insn): Don't consider Cpu* settings + when setting GNU_PROPERTY_X86_FEATURE_2_MMX. + +2019-12-04 Jan Beulich <jbeulich@suse.com> + * testsuite/gas/i386/movdir.s: Add Intel syntax case with operand size specifier. * testsuite/gas/i386/x86-64-movdir.s: Add Intel syntax cases diff --git a/gas/config/tc-i386.c b/gas/config/tc-i386.c index b8babed..b62af34 100644 --- a/gas/config/tc-i386.c +++ b/gas/config/tc-i386.c @@ -8259,15 +8259,9 @@ output_insn (void) || i.tm.cpu_flags.bitfield.cpu687 || i.tm.cpu_flags.bitfield.cpufisttp) x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_X87; - /* Don't set GNU_PROPERTY_X86_FEATURE_2_MMX for prefetchtXXX nor - Xfence instructions. */ - if (i.tm.base_opcode != 0xf18 - && i.tm.base_opcode != 0xf0d - && i.tm.base_opcode != 0xfaef8 - && (i.has_regmmx - || i.tm.cpu_flags.bitfield.cpummx - || i.tm.cpu_flags.bitfield.cpua3dnow - || i.tm.cpu_flags.bitfield.cpua3dnowa)) + if (i.has_regmmx + || i.tm.base_opcode == 0xf77 /* emms */ + || i.tm.base_opcode == 0xf0e /* femms */) x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_MMX; if (i.has_regxmm) x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_XMM; |