Fix broken hifi3 NDSP lib patch file (#2457)
Not clear if/how it worked before, because there were no updates to the library since the patch was created.
BUG=322146544
diff --git a/tensorflow/lite/micro/tools/make/ext_libs/ndsplib-hifi3.patch b/tensorflow/lite/micro/tools/make/ext_libs/ndsplib-hifi3.patch
index fe68668..f6c1421 100644
--- a/tensorflow/lite/micro/tools/make/ext_libs/ndsplib-hifi3.patch
+++ b/tensorflow/lite/micro/tools/make/ext_libs/ndsplib-hifi3.patch
@@ -1,5 +1,5 @@
diff --git a/library/include/NatureDSP_Signal_math.h b/library/include/NatureDSP_Signal_math.h
-index 2ffea63..55074ab 100644
+index 2ffea63..eff0e47 100644
--- a/library/include/NatureDSP_Signal_math.h
+++ b/library/include/NatureDSP_Signal_math.h
@@ -635,6 +635,7 @@ float32_t scl_atan2f (float32_t y, float32_t x);
@@ -10,20 +10,20 @@
int32_t scl_tanh32x32(int32_t x);
/*-------------------------------------------------------------------------
-@@ -659,8 +660,12 @@ int32_t scl_tanh32x32(int32_t x);
+@@ -659,7 +660,12 @@ int32_t scl_tanh32x32(int32_t x);
return result, Q16.15
-------------------------------------------------------------------------*/
void vec_sigmoid32x32(int32_t * y, const int32_t * x, int N);
+void vec_sigmoidf (float32_t * y, const float32_t * x, int N);
int32_t scl_sigmoid32x32(int32_t x);
+float32_t scl_sigmoidf(float32_t x);
-
++
+void vec_relu32x32 (int32_t * y, const int32_t * x, int32_t K, int N);
+void vec_reluf (float32_t * y, const float32_t * x, float32_t K, int N);
+
/*-------------------------------------------------------------------------
Softmax
- The function computes the softmax (normalized exponential function) of
-@@ -685,6 +690,7 @@ int32_t scl_sigmoid32x32(int32_t x);
+@@ -685,6 +691,7 @@ int32_t scl_sigmoid32x32(int32_t x);
-------------------------------------------------------------------------*/
void vec_softmax32x32(int32_t * y, const int32_t * x, int N);
@@ -32,7 +32,7 @@
/*-------------------------------------------------------------------------
Integer to float conversion
diff --git a/library/include/NatureDSP_types.h b/library/include/NatureDSP_types.h
-index a38b334..bce8636 100644
+index a38b334..6322852 100644
--- a/library/include/NatureDSP_types.h
+++ b/library/include/NatureDSP_types.h
@@ -332,7 +332,9 @@ typedef struct tagComplex32_t
@@ -41,7 +41,7 @@
#elif defined (COMPILER_XTENSA)
+#if !defined restrict
#define restrict __restrict
-+#endif
++#endif
#define onchip
#define NASSERT(x) {(void)__builtin_expect((x)!=0,1);}
#else
