diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6dbf830..64f5ded 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -165,7 +165,13 @@ else()
 
             if(KISSFFT_DATATYPE MATCHES "^simd$")
                 list(APPEND KISSFFT_COMPILE_DEFINITIONS USE_SIMD)
-                if (NOT MSVC)
+                if(HAVE_LASX)
+                    list(APPEND KISSFFT_COMPILE_DEFINITIONS HAVE_LASX)
+                    target_compile_options(kissfft PRIVATE -mlasx)
+                elseif(HAVE_LSX)
+                    list(APPEND KISSFFT_COMPILE_DEFINITIONS HAVE_LSX)
+                    target_compile_options(kissfft PRIVATE -mlsx)
+                elseif(NOT MSVC)
                     target_compile_options(kissfft PRIVATE -msse)
                 else()
                     target_compile_options(kissfft PRIVATE "/arch:SSE")
@@ -260,6 +266,13 @@ function(add_kissfft_executable NAME)
         target_link_libraries(${NAME} PRIVATE m)
     endif()
 
+    if(HAVE_LASX)
+      target_compile_options(${NAME} PRIVATE -mlasx)
+    endif()
+    if(HAVE_LSX)
+      target_compile_options(${NAME} PRIVATE -mlsx)
+    endif()
+
     if (NOT KISSFFT_OPENMP)
         set_target_properties(${NAME} PROPERTIES
             OUTPUT_NAME "${NAME}-${KISSFFT_DATATYPE}")
@@ -327,7 +340,11 @@ if (KISSFFT_PKGCONFIG)
     join_paths(PKGCONFIG_KISSFFT_INCLUDEDIR "\${prefix}" "${CMAKE_INSTALL_INCLUDEDIR}")
     if(KISSFFT_DATATYPE MATCHES "^simd$")
        list(APPEND KISSFFT_COMPILE_DEFINITIONS USE_SIMD)
-       if (NOT MSVC)
+       if(HAVE_LASX)
+         set(PKG_KISSFFT_DEFS "${PKG_KISSFFT_DEFS} -mlasx")
+       elseif(HAVE_LSX)
+         set(PKG_KISSFFT_DEFS "${PKG_KISSFFT_DEFS} -mlsx")
+       elseif(NOT MSVC)
            set(PKG_KISSFFT_DEFS "${PKG_KISSFFT_DEFS} -msse")
        else()
            set(PKG_KISSFFT_DEFS "${PKG_KISSFFT_DEFS} /ARCH:SSE")
diff --git a/Makefile b/Makefile
index 7ab2d53..1f08419 100644
--- a/Makefile
+++ b/Makefile
@@ -72,6 +72,9 @@ ifneq ($(MAKECMDGOALS),clean)
     ifeq ($(_UNAME_ARCH),x86_64)
 	CANDIDATE_LIBDIR_NAME = lib64
     endif
+    ifeq ($(_UNAME_ARCH),loongarch64)
+        CANDIDATE_LIBDIR_NAME = lib64
+    endif
   endif
 endif
 
@@ -113,6 +116,8 @@ else
 endif
 
 export KISSFFTLIB_SHORTNAME
+export HAVE_LSX
+export HAVE_LASX
 
 #
 # Compile-time definitions by datatype
@@ -127,7 +132,13 @@ ifeq "$(KISSFFT_DATATYPE)" "int32_t"
 else ifeq "$(KISSFFT_DATATYPE)" "int16_t"
 	TYPEFLAGS += -DFIXED_POINT=16
 else ifeq "$(KISSFFT_DATATYPE)" "simd"
+  ifeq "$(HAVE_LASX)" "lasx"
+	TYPEFLAGS += -DUSE_SIMD=1 -DHAVE_LASX=1 -mlasx
+  else ifeq "$(HAVE_LSX)" "lsx"
+	TYPEFLAGS += -DUSE_SIMD=1 -DHAVE_LSX=1 -mlsx
+  else
 	TYPEFLAGS += -DUSE_SIMD=1 -msse
+  endif
 else ifeq "$(KISSFFT_DATATYPE)" "float"
 	TYPEFLAGS += -Dkiss_fft_scalar=$(KISSFFT_DATATYPE)
 else ifeq "$(KISSFFT_DATATYPE)" "double"
@@ -273,21 +284,39 @@ testall:
 	$(MAKE) KISSFFT_DATATYPE=int16_t testsingle
 	# The simd and int32_t types may or may not work on your machine
 	$(MAKE) KISSFFT_DATATYPE=int32_t testsingle
-	$(MAKE) KISSFFT_DATATYPE=simd testsingle
+	@if [ "$(HAVE_LASX)" = "lasx" ]; then \
+		$(MAKE) KISSFFT_DATATYPE=simd HAVE_LASX=lasx testsingle; \
+	elif [ "$(HAVE_LSX)" = "lsx" ]; then \
+		$(MAKE) KISSFFT_DATATYPE=simd HAVE_LSX=lsx testsingle; \
+	else \
+		$(MAKE) KISSFFT_DATATYPE=simd testsingle; \
+	fi
 	# Static libraries
 	$(MAKE) KISSFFT_DATATYPE=double KISSFFT_STATIC=1 testsingle
 	$(MAKE) KISSFFT_DATATYPE=float KISSFFT_STATIC=1 testsingle
 	$(MAKE) KISSFFT_DATATYPE=int16_t KISSFFT_STATIC=1 testsingle
 	# The simd and int32_t types may or may not work on your machine
 	$(MAKE) KISSFFT_DATATYPE=int32_t KISSFFT_STATIC=1 testsingle
-	$(MAKE) KISSFFT_DATATYPE=simd KISSFFT_STATIC=1 testsingle
+	@if [ "$(HAVE_LASX)" = "lasx" ]; then \
+		$(MAKE) KISSFFT_DATATYPE=simd HAVE_LASX=lasx testsingle; \
+	elif [ "$(HAVE_LSX)" = "lsx" ]; then \
+		$(MAKE) KISSFFT_DATATYPE=simd HAVE_LSX=lsx KISSFFT_STATIC=1 testsingle; \
+	else \
+		$(MAKE) KISSFFT_DATATYPE=simd KISSFFT_STATIC=1 testsingle; \
+	fi
 	# OpenMP libraries
 	$(MAKE) KISSFFT_DATATYPE=double KISSFFT_OPENMP=1 testsingle
 	$(MAKE) KISSFFT_DATATYPE=float KISSFFT_OPENMP=1 testsingle
 	$(MAKE) KISSFFT_DATATYPE=int16_t KISSFFT_OPENMP=1 testsingle
 	# The simd and int32_t types may or may not work on your machine
 	$(MAKE) KISSFFT_DATATYPE=int32_t KISSFFT_OPENMP=1 testsingle
-	$(MAKE) KISSFFT_DATATYPE=simd KISSFFT_OPENMP=1 testsingle
+	@if [ "$(HAVE_LASX)" = "lasx" ]; then \
+		$(MAKE) KISSFFT_DATATYPE=simd HAVE_LASX=lasx testsingle; \
+	elif [ "$(HAVE_LSX)" = "lsx" ]; then \
+		$(MAKE) KISSFFT_DATATYPE=simd HAVE_LSX=lsx KISSFFT_OPENMP=1 testsingle; \
+	else \
+		$(MAKE) KISSFFT_DATATYPE=simd KISSFFT_OPENMP=1 testsingle; \
+	fi
 	$(warning All tests passed!)
 
 #
diff --git a/_kiss_fft_guts.h b/_kiss_fft_guts.h
index 4bd8d1c..f4b6832 100644
--- a/_kiss_fft_guts.h
+++ b/_kiss_fft_guts.h
@@ -129,9 +129,31 @@ struct kiss_fft_state{
 #  define KISS_FFT_SIN(phase)  floor(.5+SAMP_MAX * sin (phase))
 #  define HALF_OF(x) ((x)>>1)
 #elif defined(USE_SIMD)
+#if defined(HAVE_LASX)
+#define KISS_FFT_COS(phase) ({ \
+    float __cos_val = cosf(phase); \
+    (__m256)(__lasx_xvldrepl_w(&__cos_val, 0)); \
+})
+#define KISS_FFT_SIN(phase) ({ \
+    float __sin_val = sinf(phase); \
+    (__m256)(__lasx_xvldrepl_w(&__sin_val, 0)); \
+})
+#define HALF_OF(x) ((x) * (__m256)(__lasx_xvreplgr2vr_w(0x3F000000))) // 0.5f
+#elif defined(HAVE_LSX)
+#define KISS_FFT_COS(phase) ({ \
+    float __cos_val = cosf(phase); \
+    (__m128)(__lsx_vldrepl_w(&__cos_val, 0)); \
+})
+#define KISS_FFT_SIN(phase) ({ \
+    float __sin_val = sinf(phase); \
+    (__m128)(__lsx_vldrepl_w(&__sin_val, 0)); \
+})
+#define HALF_OF(x) ((x) * (__m128)(__lsx_vreplgr2vr_w(0x3F000000))) // 0.5f
+#else
 #  define KISS_FFT_COS(phase) _mm_set1_ps( cos(phase) )
 #  define KISS_FFT_SIN(phase) _mm_set1_ps( sin(phase) )
 #  define HALF_OF(x) ((x)*_mm_set1_ps(.5))
+#endif
 #else
 #  define KISS_FFT_COS(phase) (kiss_fft_scalar) cos(phase)
 #  define KISS_FFT_SIN(phase) (kiss_fft_scalar) sin(phase)
diff --git a/kiss_fft.h b/kiss_fft.h
index dce1034..51b6306 100644
--- a/kiss_fft.h
+++ b/kiss_fft.h
@@ -48,16 +48,40 @@ extern "C" {
 
 /* User may override KISS_FFT_MALLOC and/or KISS_FFT_FREE. */
 #ifdef USE_SIMD
+#ifdef HAVE_LASX
+# include <lasxintrin.h>
+# define kiss_fft_scalar __m256
+# ifndef KISS_FFT_MALLOC
+#  define KISS_FFT_MALLOC(nbytes) aligned_alloc(32, KISS_FFT_ALIGN_SIZE_UP(nbytes))
+#  define KISS_FFT_ALIGN_CHECK(ptr)
+#  define KISS_FFT_ALIGN_SIZE_UP(size) ((size + 31UL) & ~0x1FUL)
+# endif
+# ifndef KISS_FFT_FREE
+#  define KISS_FFT_FREE free
+# endif
+#elif defined(HAVE_LSX)
+# include <lsxintrin.h>
+# define kiss_fft_scalar __m128
+# ifndef KISS_FFT_MALLOC
+#  define KISS_FFT_MALLOC(nbytes) aligned_alloc(16, KISS_FFT_ALIGN_SIZE_UP(nbytes))
+#  define KISS_FFT_ALIGN_CHECK(ptr)
+#  define KISS_FFT_ALIGN_SIZE_UP(size) ((size + 15UL) & ~0xFUL)
+# endif
+# ifndef KISS_FFT_FREE
+#  define KISS_FFT_FREE free
+# endif
+#else
 # include <xmmintrin.h>
 # define kiss_fft_scalar __m128
 # ifndef KISS_FFT_MALLOC
 #  define KISS_FFT_MALLOC(nbytes) _mm_malloc(nbytes,16)
-#  define KISS_FFT_ALIGN_CHECK(ptr) 
+#  define KISS_FFT_ALIGN_CHECK(ptr)
 #  define KISS_FFT_ALIGN_SIZE_UP(size) ((size + 15UL) & ~0xFUL)
 # endif
 # ifndef KISS_FFT_FREE
 #  define KISS_FFT_FREE _mm_free
 # endif
+#endif
 #else
 # define KISS_FFT_ALIGN_CHECK(ptr)
 # define KISS_FFT_ALIGN_SIZE_UP(size) (size)
diff --git a/kiss_fftr.c b/kiss_fftr.c
index 778a9a6..08b6d7b 100644
--- a/kiss_fftr.c
+++ b/kiss_fftr.c
@@ -93,7 +93,15 @@ void kiss_fftr(kiss_fftr_cfg st,const kiss_fft_scalar *timedata,kiss_fft_cpx *fr
     freqdata[0].r = tdc.r + tdc.i;
     freqdata[ncfft].r = tdc.r - tdc.i;
 #ifdef USE_SIMD
+#ifdef HAVE_LASX
+    freqdata[0].i = (__m256)(__lasx_xvreplgr2vr_w(0));
+    freqdata[ncfft].i = freqdata[0].i;
+#elif defined(HAVE_LSX)
+    freqdata[0].i = (__m128)(__lsx_vreplgr2vr_w(0));
+    freqdata[ncfft].i = freqdata[0].i;
+#else
     freqdata[ncfft].i = freqdata[0].i = _mm_set1_ps(0);
+#endif
 #else
     freqdata[ncfft].i = freqdata[0].i = 0;
 #endif
@@ -146,7 +154,15 @@ void kiss_fftri(kiss_fftr_cfg st,const kiss_fft_cpx *freqdata,kiss_fft_scalar *t
         C_ADD (st->tmpbuf[k],     fek, fok);
         C_SUB (st->tmpbuf[ncfft - k], fek, fok);
 #ifdef USE_SIMD
+#ifdef HAVE_LASX
+        __m256 neg_one = (__m256)__lasx_xvreplgr2vr_w(0xBF800000); // -1.0f
+        st->tmpbuf[ncfft - k].i = __lasx_xvfmul_s(st->tmpbuf[ncfft - k].i, neg_one);
+#elif defined(HAVE_LSX)
+        __m128 neg_one = (__m128)__lsx_vreplgr2vr_w(0xBF800000); // -1.0f
+        st->tmpbuf[ncfft - k].i = __lsx_vfmul_s(st->tmpbuf[ncfft - k].i, neg_one);
+#else
         st->tmpbuf[ncfft - k].i *= _mm_set1_ps(-1.0);
+#endif
 #else
         st->tmpbuf[ncfft - k].i *= -1;
 #endif
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 4d07fb9..0bd0938 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -2,6 +2,14 @@ function(add_kissfft_test_executable NAME)
     add_kissfft_executable(${NAME} ${ARGN})
     target_include_directories(${NAME} PRIVATE ..)
 
+    if(HAVE_LASX)
+        target_compile_options(${NAME} PRIVATE -mlasx)
+    endif()
+
+    if(HAVE_LSX)
+        target_compile_options(${NAME} PRIVATE -mlsx)
+    endif()
+
     add_test(NAME ${NAME} COMMAND ${NAME})
     set_tests_properties(${NAME} PROPERTIES TIMEOUT 3600)
 endfunction()
@@ -46,7 +54,11 @@ add_kissfft_test_executable(testcpp testcpp.cc)
 if(KISSFFT_DATATYPE MATCHES "^simd$")
     add_kissfft_test_executable(tsimd test_simd.c)
     target_compile_definitions(tsimd PRIVATE USE_SIMD)
-    if (NOT MSVC)
+    if(HAVE_LASX)
+        target_compile_options(kissfft PRIVATE -mlasx)
+    elseif(HAVE_LSX)
+        target_compile_options(kissfft PRIVATE -mlsx)
+    elseif(NOT MSVC)
         target_compile_options(kissfft PRIVATE -msse)
     else()
         target_compile_options(kissfft PRIVATE "/arch:SSE")
diff --git a/test/Makefile b/test/Makefile
index 945250f..e53704a 100644
--- a/test/Makefile
+++ b/test/Makefile
@@ -138,7 +138,13 @@ endif
 
 $(TESTSIMD): test_simd.c
 ifeq "$(KISSFFT_DATATYPE)" "simd"
+ifeq "$(HAVE_LASX)" "lasx"
+	$(CC) -o $@ -g $(CFLAGS) -DUSE_SIMD=1 -DHAVE_LASX=1 -mlasx $< -L.. -l$(KISSFFTLIB_SHORTNAME) -lm
+else ifeq "$(HAVE_LSX)" "lsx"
+	$(CC) -o $@ -g $(CFLAGS) -DUSE_SIMD=1 -DHAVE_LSX=1 -mlsx $< -L.. -l$(KISSFFTLIB_SHORTNAME) -lm
+else
 	$(CC) -o $@ -g $(CFLAGS) -DUSE_SIMD=1 -msse $< -L.. -l$(KISSFFTLIB_SHORTNAME) -lm
+endif
 else
 	$(error ERROR: This test makes sense only with KISSFFT_DATATYPE=simd)
 endif
diff --git a/test/benchkiss.c b/test/benchkiss.c
index 7dae65d..ac0d98c 100644
--- a/test/benchkiss.c
+++ b/test/benchkiss.c
@@ -70,8 +70,13 @@ int main(int argc,char ** argv)
         nbytes *= nfft[k];
 
 #ifdef USE_SIMD        
+#ifdef HAVE_LASX
+    numffts /= 8;
+    fprintf(stderr,"since SIMD implementation does 8 ffts at a time, numffts is being reduced to %d\n",numffts);
+#else
     numffts /= 4;
     fprintf(stderr,"since SIMD implementation does 4 ffts at a time, numffts is being reduced to %d\n",numffts);
+#endif
 #endif
 
     buf=(kiss_fft_cpx*)KISS_FFT_MALLOC(nbytes);
diff --git a/test/test_real.c b/test/test_real.c
index 9e4bd58..52e9be8 100644
--- a/test/test_real.c
+++ b/test/test_real.c
@@ -22,7 +22,15 @@ static
 kiss_fft_scalar rand_scalar(void) 
 {
 #ifdef USE_SIMD
+#ifdef HAVE_LASX
+    float tmp = rand()-RAND_MAX/2;
+    return (__m256)(__lasx_xvldrepl_w(&tmp, 0));
+#elif defined(HAVE_LSX)
+    float tmp = rand()-RAND_MAX/2;
+    return (__m128)(__lsx_vldrepl_w(&tmp, 0));
+#else
     return _mm_set1_ps(rand()-RAND_MAX/2);
+#endif
 #else
     kiss_fft_scalar s = (kiss_fft_scalar)(rand() -RAND_MAX/2);
     return s/2;
diff --git a/test/test_simd.c b/test/test_simd.c
index d9c6790..25a6097 100644
--- a/test/test_simd.c
+++ b/test/test_simd.c
@@ -6,16 +6,30 @@ static void test1(void)
     int n[2] = {256,256};
     size_t nbytes = sizeof(kiss_fft_cpx)*n[0]*n[1];
 
+#if defined(HAVE_LSX) || defined(HAVE_LASX)
+    kiss_fft_cpx * inbuf = NULL;
+    kiss_fft_cpx * outbuf = NULL;
+    if (posix_memalign((void**)&inbuf, 16, nbytes) ||
+        posix_memalign((void**)&outbuf, 16, nbytes))
+      return;
+#else
     kiss_fft_cpx * inbuf = _mm_malloc(nbytes,16);
     kiss_fft_cpx * outbuf = _mm_malloc(nbytes,16);
+#endif
     memset(inbuf,0,nbytes);
     memset(outbuf,0,nbytes);
 
     kiss_fftnd_cfg cfg = kiss_fftnd_alloc(n,2,is_inverse,0,0);
     kiss_fftnd(cfg,inbuf,outbuf);
     kiss_fft_free(cfg);
+
+#if defined(HAVE_LSX) || defined(HAVE_LASX)
+    free(inbuf);
+    free(outbuf);
+#else
     _mm_free(inbuf);
     _mm_free(outbuf);
+#endif
 }
 
 int main(void)
diff --git a/test/twotonetest.c b/test/twotonetest.c
index 5f08daf..e93fac3 100644
--- a/test/twotonetest.c
+++ b/test/twotonetest.c
@@ -38,8 +38,16 @@ double two_tone_test( int nfft, int bin1,int bin2)
     /* generate a signal with two tones*/
     for (i = 0; i < nfft; i++) {
 #ifdef USE_SIMD
+#ifdef HAVE_LASX
+        float tmp = (maxrange>>1)*cos(f1*i) + (maxrange>>1)*cos(f2*i);
+        tbuf[i] = (__m256)__lasx_xvldrepl_w(&tmp, 0);
+#elif defined(HAVE_LSX)
+        float tmp = (maxrange>>1)*cos(f1*i) + (maxrange>>1)*cos(f2*i);
+        tbuf[i] = (__m128)__lsx_vldrepl_w(&tmp, 0);
+#else
         tbuf[i] = _mm_set1_ps( (maxrange>>1)*cos(f1*i)
                              + (maxrange>>1)*cos(f2*i) );
+#endif
 #else        
         tbuf[i] =  (maxrange>>1)*cos(f1*i)
                  + (maxrange>>1)*cos(f2*i);
diff --git a/tools/kiss_fastfir.c b/tools/kiss_fastfir.c
index d4e666c..e066328 100644
--- a/tools/kiss_fastfir.c
+++ b/tools/kiss_fastfir.c
@@ -154,8 +154,18 @@ kiss_fastfir_cfg kiss_fastfir_alloc(
 
     for ( i=0; i < st->n_freq_bins; ++i ) {
 #ifdef USE_SIMD
+#ifdef HAVE_LASX
+        __m256 tmp = (__m256)__lasx_xvldrepl_w(&scale, 0);
+        st->fir_freq_resp[i].r = __lasx_xvfmul_s(tmp, st->fir_freq_resp[i].r);
+        st->fir_freq_resp[i].i = __lasx_xvfmul_s(tmp, st->fir_freq_resp[i].i);
+#elif defined(HAVE_LSX)
+        __m128 tmp = (__m128)__lsx_vldrepl_w(&scale, 0);
+        st->fir_freq_resp[i].r = __lsx_vfmul_s(tmp, st->fir_freq_resp[i].r);
+        st->fir_freq_resp[i].i = __lsx_vfmul_s(tmp, st->fir_freq_resp[i].i);
+#else
         st->fir_freq_resp[i].r *= _mm_set1_ps(scale);
         st->fir_freq_resp[i].i *= _mm_set1_ps(scale);
+#endif
 #else
         st->fir_freq_resp[i].r *= scale;
         st->fir_freq_resp[i].i *= scale;
@@ -286,7 +296,13 @@ void direct_file_filter(
             tmph = imp_resp+nlag;
 #ifdef REAL_FASTFIR
 # ifdef USE_SIMD
+#ifdef HAVE_LASX
+            outval = (__m256)(__lasx_xvreplgr2vr_w(0));
+#elif defined(HAVE_LSX)
+            outval = (__m128)(__lsx_vreplgr2vr_w(0));
+#else
             outval = _mm_set1_ps(0);
+#endif
 #else
             outval = 0;
 #endif
@@ -297,7 +313,15 @@ void direct_file_filter(
             outval += buf[k] * *tmph;
 #else
 # ifdef USE_SIMD
+#ifdef HAVE_LASX
+            outval.i = (__m256)(__lasx_xvreplgr2vr_w(0));
+            outval.r = outval.i;
+#elif defined(HAVE_LSX)
+            outval.i = (__m128)(__lsx_vreplgr2vr_w(0));
+            outval.r = outval.i;
+#else
             outval.r = outval.i = _mm_set1_ps(0);
+#endif
 #else            
             outval.r = outval.i = 0;
 #endif