yggdrasil75/stupidsimcpp
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meh.

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Yggdrasil75
2026-01-29 09:15:02 -05:00
parent 670ff42b82
commit c282acd725
3 changed files with 86 additions and 113 deletions
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28
makefile
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@@ -7,13 +7,31 @@ STB_DIR := ./stb
# Compiler and flags
CXX := g++
CXXFLAGS = -std=c++23 -O3 -march=native -I$(IMGUI_DIR) -I$(IMGUI_DIR)/backends -I$(STB_DIR)
CXXFLAGS += `pkg-config --cflags glfw3`
CFLAGS = $(CXXFLAGS)
BASE_CXXFLAGS = -std=c++23 -O3 -I$(IMGUI_DIR) -I$(IMGUI_DIR)/backends -I$(STB_DIR)
BASE_CXXFLAGS += `pkg-config --cflags glfw3`
CFLAGS = $(BASE_CXXFLAGS)
LDFLAGS := -L./imgui -limgui -lGL
LINUX_GL_LIBS = -lGL -ltbb
PKG_FLAGS := $(LINUX_GL_LIBS) `pkg-config --static --cflags --libs glfw3`
CXXFLAGS += $(PKG_FLAGS)
BASE_CXXFLAGS += $(PKG_FLAGS)
# Test if AVX is supported (run once, store result)
AVX_SUPPORTED := $(shell echo "int main(){}" | $(CXX) -mavx -x c++ -o /dev/null - 2>/dev/null && echo "yes" || echo "no")
SSE2_SUPPORTED := $(shell echo "int main(){}" | $(CXX) -msse2 -x c++ -o /dev/null - 2>/dev/null && echo "yes" || echo "no")
# Set SIMD flags based on detection
ifeq ($(AVX_SUPPORTED),yes)
SIMD_CXXFLAGS = -mavx2 -mfma -DAVX
$(info Building with AVX support)
else ifeq ($(SSE2_SUPPORTED),yes)
SIMD_CXXFLAGS = -msse2 -DSSE
$(info Building with SSE2 support (no AVX))
else
SIMD_CXXFLAGS = -DNO_SIMD
$(warning No SIMD support detected, building scalar version)
endif
CXXFLAGS = $(BASE_CXXFLAGS) $(SIMD_CXXFLAGS)
# Source files
SRC := $(SRC_DIR)/g3etest.cpp
@@ -43,7 +61,7 @@ $(OBJ_DIR)/%.o: $(STB_DIR)/%.cpp
$(CXX) $(CXXFLAGS) -c -o $@ $<
all: $(EXE)
@echo Build complete for $(ECHO_MESSAGE)
@echo "Build complete for $(UNAME_S)"
$(EXE): $(OBJS)
$(CXX) -o $@ $^ $(CXXFLAGS) $(LIBS)