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H.J. Lu authored
We can optimize AVX512 instructions with EVEX128 only if AVX512VL is enabled: 1. Instruction is an AVX512VL instruction. Or 2. AVX512VL is enabled explicitly by -march=+avx512vl/".arch .avx512vl". We should optimize EVEX instructions with EVEX128 encoding when pseudo {evex} prefix is used. * config/tc-i386.c (set_cpu_arch): Set cpu_arch_isa_flags. (md_parse_option): Likewise. (optimize_encoding): Check i.tm.cpu_flags and cpu_arch_isa_flags for cpuavx512vl instead of cpu_arch_flags. Optimize EVEX with EVEX128 when EVEX encoding is required. * testsuite/gas/i386/i386.exp: Run optimize-4, optimize-5, x86-64-optimize-5 and x86-64-optimize-6. * testsuite/gas/i386/optimize-1.d: Updated. * testsuite/gas/i386/x86-64-optimize-2.d: Likewise. * testsuite/gas/i386/optimize-4.d: New file. * testsuite/gas/i386/optimize-4.s: Likewise. * testsuite/gas/i386/optimize-5.d: Likewise. * testsuite/gas/i386/optimize-5.s: Likewise. * testsuite/gas/i386/x86-64-optimize-5.d: Likewise. * testsuite/gas/i386/x86-64-optimize-5.s: Likewise. * testsuite/gas/i386/x86-64-optimize-6.d: Likewise. * testsuite/gas/i386/x86-64-optimize-6.s: Likewise.
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