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Work around llvm failing to compile the AVX512 sgemm kernel #5644

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Work around llvm failing to compile the AVX512 sgemm kernel #5644

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5 changes: 5 additions & 0 deletions Makefile.x86_64
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Original file line number Diff line number Diff line change
Expand Up @@ -61,6 +61,9 @@ endif
ifeq ($(CORE), SKYLAKEX)
ifndef NO_AVX512
CCOMMON_OPT += -march=skylake-avx512
ifeq ($(C_COMPILER, CLANG)
CCOMMON_OPT += -mllvm -exhaustive-register-search
endif
ifneq ($(F_COMPILER), NAG)
FCOMMON_OPT += -march=skylake-avx512
endif
Expand Down Expand Up @@ -93,6 +96,7 @@ ifeq ($(C_COMPILER), GCC)
endif
endif
else ifeq ($(C_COMPILER), CLANG)
CCOMMON_OPT += -mllvm -exhaustive-register-search
# cooperlake support was added in clang 9
ifeq ($(CLANGVERSIONGTEQ9), 1)
CCOMMON_OPT += -march=cooperlake
Expand Down Expand Up @@ -135,6 +139,7 @@ ifeq ($(C_COMPILER), GCC)
endif
endif
else ifeq ($(C_COMPILER), CLANG)
CCOMMON_OPT += -mllvm -exhaustive-register-search
# sapphire rapids support was added in clang 12
ifeq ($(CLANGVERSIONGTEQ12), 1)
CCOMMON_OPT += -march=sapphirerapids
Expand Down
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