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GCC 8 support for zen4 (and amdzen) configuration

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- Added check for GCC version 8,
- Added AVX512 compiler flags needed for zen4 build using GCC 8.

AMD-Internal: [CPUPL-2494]
Change-Id: I7fd72e4b197fdd754633f674a8b87f01da8dd320
This commit is contained in:
Dipal M Zambare
2022-09-05 11:41:36 +05:30
parent d69473c8f7
commit 6b71fea1f4
1 changed files with 6 additions and 1 deletions
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7
config/zen4/make_defs.mk
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@@ -86,10 +86,15 @@ ifeq ($(shell test $(GCC_VERSION) -ge 9; echo $$?),0)
CKVECFLAGS += -march=znver2 -mavx512f -mavx512dq -mavx512bw -mavx512vl -mavx512vnni -mfpmath=sse
CRVECFLAGS += -march=znver2
else
# If gcc is older than 9.1.0 but at least 6.1.0, then we can use -march=znver1
ifeq ($(shell test $(GCC_VERSION) -ge 8; echo $$?),0)
CKVECFLAGS += -march=znver1 -mavx512f -mavx512dq -mavx512bw -mavx512vl -mavx512vnni -mfpmath=sse
CRVECFLAGS += -march=znver1
else
# If gcc is older than 8.0.0 but at least 6.1.0, then we can use -march=znver1
# as the fallback option.
CKVECFLAGS += -march=znver1 -mno-avx256-split-unaligned-store
CRVECFLAGS += -march=znver1 -mno-avx256-split-unaligned-store
endif # GCC 8
endif # GCC 9
endif # GCC 11
endif # GCC 12