From b30b93cd971d2c073df6996dbacdc75a0f177159 Mon Sep 17 00:00:00 2001
From: Mark Borgerding <mark@borgerding.net>
Date: Sun, 19 Apr 2020 09:57:40 -0400
Subject: [PATCH] A test case for issue #40.  Segfaults with: make -C test
 test_simd && ./test/test_simd

---
 .gitignore       |  1 +
 test/Makefile    |  2 ++
 test/test_simd.c | 25 +++++++++++++++++++++++++
 3 files changed, 28 insertions(+)
 create mode 100644 test/test_simd.c

diff --git a/.gitignore b/.gitignore
index 94a9531..4b2dede 100644
--- a/.gitignore
+++ b/.gitignore
@@ -44,3 +44,4 @@ tools/fft_float
 tools/fft_int16_t
 tools/fft_int32_t
 tools/fft_simd
+test/test_simd
diff --git a/test/Makefile b/test/Makefile
index 5de5e56..79bd440 100644
--- a/test/Makefile
+++ b/test/Makefile
@@ -64,6 +64,8 @@ all: tools $(BENCHKISS) $(SELFTEST) $(BENCHFFTW) $(TESTREAL) $(TESTKFC)
 tools:
 	cd ../tools && make all
 
+test_simd: test_simd.c  $(SRCFILES)
+	$(CC) -o $@ -g $(CFLAGS) -DUSE_SIMD=1 -msse $+ -lm
 
 $(SELFTEST): $(SELFTESTSRC) $(SRCFILES)
 	$(CC) -o $@ $(CFLAGS) $(TYPEFLAGS) $+ -lm 
diff --git a/test/test_simd.c b/test/test_simd.c
new file mode 100644
index 0000000..d9c6790
--- /dev/null
+++ b/test/test_simd.c
@@ -0,0 +1,25 @@
+#include <kiss_fftnd.h>
+
+static void test1(void)
+{
+    int is_inverse = 1;
+    int n[2] = {256,256};
+    size_t nbytes = sizeof(kiss_fft_cpx)*n[0]*n[1];
+
+    kiss_fft_cpx * inbuf = _mm_malloc(nbytes,16);
+    kiss_fft_cpx * outbuf = _mm_malloc(nbytes,16);
+    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);
+    _mm_free(inbuf);
+    _mm_free(outbuf);
+}
+
+int main(void)
+{
+    test1();
+    return 0;
+}