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0016d541e6
Details: - In config/zen2/make_defs.mk, changed the -march= flag so that -march=znver1 is used instead of -march=znver2 when CC_VENDOR is clang. (The gcc branch attempts to differentiate between various versions, but the equivalent version cutoffs for clang are not yet known by us, so we have to use a single flag for all versions of clang. Hopefully -march=znver1 is new enough. If not, we'll fall back to -march=bdver4 -mno-fma4 -mno-tbm -mno-xop -mno-lwp.) This issue was discovered thanks to AppVeyor.
89 lines
3.5 KiB
Makefile
89 lines
3.5 KiB
Makefile
#
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#
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# BLIS
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# An object-based framework for developing high-performance BLAS-like
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# libraries.
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#
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# Copyright (C) 2014, The University of Texas at Austin
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# Copyright (C) 2019, Advanced Micro Devices, Inc.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met:
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# - Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# - Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# - Neither the name(s) of the copyright holder(s) nor the names of its
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# contributors may be used to endorse or promote products derived
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# from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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#
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# FLAGS that are specific to the 'zen2' architecture are added here.
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# FLAGS that are common for all the AMD architectures are present in
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# config/zen/amd_config.mk.
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# Declare the name of the current configuration and add it to the
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# running list of configurations included by common.mk.
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THIS_CONFIG := zen2
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#CONFIGS_INCL += $(THIS_CONFIG)
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#
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# --- Determine the C compiler and related flags ---
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#
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# Include file containing common flags for all AMD architectures.
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AMD_CONFIG_FILE := amd_config.mk
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AMD_CONFIG_PATH := $(BASE_SHARE_PATH)/config/zen
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-include $(AMD_CONFIG_PATH)/$(AMD_CONFIG_FILE)
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ifeq ($(CC_VENDOR),gcc)
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ifeq ($(GCC_OT_9_1_0),yes)
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ifeq ($(GCC_OT_6_1_0),yes)
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# If gcc is older than 6.1.0, we must use -march=bdver4 and then remove the
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# Bulldozer instruction sets that were omitted from Zen.
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CRVECFLAGS += -march=bdver4 -mno-fma4 -mno-tbm -mno-xop -mno-lwp
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CKVECFLAGS += -march=bdver4 -mno-fma4 -mno-tbm -mno-xop -mno-lwp
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else
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# If gcc is older than 9.1.0 but at least 6.1.0, then we can use -march=znver1
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# as the fallback option.
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CRVECFLAGS += -march=znver1 -mno-avx256-split-unaligned-store
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CKVECFLAGS += -march=znver1 -mno-avx256-split-unaligned-store
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endif
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else
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# If gcc is at least 9.1.0, then we can specify the microarchitecture using
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# the preferred option.
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CRVECFLAGS += -march=znver2
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CKVECFLAGS += -march=znver2
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endif
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else
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ifeq ($(CC_VENDOR),clang)
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# I couldn't find which versions of clang added support for -march=znver1
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# or -march=znver2, so we don't even bother attempting the differentiation
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# that appears in the gcc branch above.
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CRVECFLAGS += -march=znver1
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CKVECFLAGS += -march=znver1
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else
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$(error gcc or clang are required for this configuration.)
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endif
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endif
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# Store all of the variables here to new variables containing the
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# configuration name.
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$(eval $(call store-make-defs,$(THIS_CONFIG)))
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