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| author | Jan Beulich <jbeulich@novell.com> | 2018-03-08 08:45:56 +0100 |
|---|---|---|
| committer | Jan Beulich <jbeulich@suse.com> | 2018-03-08 08:45:56 +0100 |
| commit | ab592e757ed0a4117f68c6b722803e8ba108bf66 (patch) | |
| tree | 548061083e88cd378047d7fe96e523af4845a97c | |
| parent | db12e14ea0f35738dbde263a8d37610995227853 (diff) | |
| download | gdb-ab592e757ed0a4117f68c6b722803e8ba108bf66.zip gdb-ab592e757ed0a4117f68c6b722803e8ba108bf66.tar.gz gdb-ab592e757ed0a4117f68c6b722803e8ba108bf66.tar.bz2 | |
x86: change AVX512VL handling in cpu_flags_match()
In order to add an AVX512F counterpart to the present AVX checking, it
is better to move the AVX512VL check out of the conditional it's
currently in.
| -rw-r--r-- | gas/ChangeLog | 4 | ||||
| -rw-r--r-- | gas/config/tc-i386.c | 16 |
2 files changed, 9 insertions, 11 deletions
diff --git a/gas/ChangeLog b/gas/ChangeLog index 144edef..bd58786 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,5 +1,9 @@ 2018-03-08 Jan Beulich <jbeulich@suse.com> + * config/tc-i386.c (cpu_flags_match): Move AVX512VL check ahead. + +2018-03-08 Jan Beulich <jbeulich@suse.com> + * config/tc-i386.c (CPU_FLAGS_32BIT_MATCH): Delete. (cpu_flags_match): Use CPU_FLAGS_ARCH_MATCH instead of CPU_FLAGS_32BIT_MATCH. diff --git a/gas/config/tc-i386.c b/gas/config/tc-i386.c index dee3644..7f2bd2d 100644 --- a/gas/config/tc-i386.c +++ b/gas/config/tc-i386.c @@ -1712,6 +1712,11 @@ cpu_flags_match (const insn_template *t) /* This instruction is available only on some archs. */ i386_cpu_flags cpu = cpu_arch_flags; + /* AVX512VL is no standalone feature - match it and then strip it. */ + if (x.bitfield.cpuavx512vl && !cpu.bitfield.cpuavx512vl) + return match; + x.bitfield.cpuavx512vl = 0; + cpu = cpu_flags_and (x, cpu); if (!cpu_flags_all_zero (&cpu)) { @@ -1724,17 +1729,6 @@ cpu_flags_match (const insn_template *t) && (!x.bitfield.cpupclmul || cpu.bitfield.cpupclmul)) match |= CPU_FLAGS_ARCH_MATCH; } - else if (x.bitfield.cpuavx512vl) - { - /* Match AVX512VL. */ - if (cpu.bitfield.cpuavx512vl) - { - /* Need another match. */ - cpu.bitfield.cpuavx512vl = 0; - if (!cpu_flags_all_zero (&cpu)) - match |= CPU_FLAGS_ARCH_MATCH; - } - } else match |= CPU_FLAGS_ARCH_MATCH; } |