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Add SSE41 switch.

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This allows building modern compiles with SSE41 enabled,
which gives a nice speedup on my Bulldozer CPU.

For example:
make nnue ARCH=x86-64-modern sse41=yes -j
This commit is contained in:
joergoster 2020-07-01 14:14:27 +02:00 • committed by nodchip
parent c8262f8aec
commit 145e4c2a10
1 changed files with 7 additions and 0 deletions
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7
src/Makefile
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@ -386,6 +386,13 @@ ifeq ($(avx2),yes)
endif
endif
ifeq ($(sse41),yes)
CXXFLAGS += -DUSE_SSE41
ifeq ($(comp),$(filter $(comp),gcc clang mingw msys2))
CXXFLAGS += -msse4
endif
endif
### 3.7 pext
ifeq ($(pext),yes)
CXXFLAGS += -DUSE_PEXT