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TPjAzLOYHxqu6e8scMjc8q0XipiAO+qzKPxYk4I5AQSOROoK1Sy0r2t+/O78N80RfDlnM2ReTQwx4G4nxWs5YJkQCBHGYQBsTbfkEfleFNw= X-MS-Exchange-Transport-CrossTenantHeadersStamped: IA1PR11MB6148 X-OriginatorOrg: intel.com X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org On Tue, Mar 21, 2023 at 03:13:14PM +0800, hfli@netitest.com wrote: > Hi Dev, > > When I build dpdk on CentOS7.9 and GCC 8.4.0, it throw “operand type > mismatch for `vpclmulqdq'”, how can I fix this? > > FAILED: lib/net/libnet_crc_avx512_lib.a.p/net_crc_avx512.c.o > ccache cc -Ilib/net/libnet_crc_avx512_lib.a.p -Ilib/net -I../lib/net -I. > -I.. -Iconfig -I../config -Ilib/eal/include -I../lib/eal/include > -Ilib/eal/linux/include -I../lib/eal/linux/include -Ilib/eal/x86/include > -I../lib/eal/x86/include -Ilib/eal/common -I../lib/eal/common -Ilib/eal -I.. > /lib/eal -Ilib/kvargs -I../lib/kvargs -Ilib/metrics -I../lib/metrics > -Ilib/telemetry -I../lib/telemetry -fdiagnostics-color=always -pipe > -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wextra -O3 -include rte_config.h > -Wcast-qual -Wdeprecated -Wformat -Wformat-nonliteral -Wformat-security > -Wmissing-declarations -Wmissing-prototypes -Wnested-externs > -Wold-style-definition -Wpointer-arith -Wsign-compare -Wstrict-prototypes > -Wundef -Wwrite-strings -Wno-packed-not-aligned > -Wno-missing-field-initializers -D_GNU_SOURCE -fPIC -march=native > -DALLOW_EXPERIMENTAL_API -DALLOW_INTERNAL_API -Wno-format-truncation > -DCC_X86_64_SSE42_PCLMULQDQ_SUPPORT -DCC_X86_64_AVX512_VPCLMULQDQ_SUPPORT > -mavx512f -mavx512bw -mavx512dq -mavx512vl -mvpclmulqdq -mavx2 -mavx -MD -MQ > lib/net/libnet_crc_avx512_lib.a.p/net_crc_avx512.c.o -MF > lib/net/libnet_crc_avx512_lib.a.p/net_crc_avx512.c.o.d -o > lib/net/libnet_crc_avx512_lib.a.p/net_crc_avx512.c.o -c > ../lib/net/net_crc_avx512.c > {standard input}: Assembler messages: > {standard input}:66: 错误：operand type mismatch for `vpclmulqdq' > The assembler generally comes from the binutils package rather than with gcc, so it could be a mismatch between new compiler and older assembler. You could try getting a newer copy of binutils and see if that fixes it. Alternatively, you can just try building with a target instruction set which does not include vpcmulqdq (unless you need the code that uses that instruction). Try configuring a build with "-Dcpu_instruction_set=skylake-avx512", and see if that works. According to the man page for gcc, that should give you AVX512 support, but not the problematic instruction. /Bruce