ggml : fix scalar path for computing norm (ggml-org#16558)

Anico2 · Anico2 · commit 3f13f82f6825 · 2025-10-13T11:22:27.000+03:00
diff --git a/ggml/src/ggml-cpu/vec.cpp b/ggml/src/ggml-cpu/vec.cpp
@@ -463,9 +463,9 @@ ggml_float ggml_vec_cvar_f32(const int n, float * y, const float * x, const floa
 #endif
     for (; i < n; ++i) {
         float val = x[i] - mean;
+        y[i] = val;
         val *= val;
         sum += (ggml_float)val;
-        y[i] = val;
     }
     return sum/n;
 }

Original file line number	Diff line number	Diff line change
`@@ -463,9 +463,9 @@ ggml_float ggml_vec_cvar_f32(const int n, float * y, const float * x, const floa`
`463`	`463`	`#endif`
`464`	`464`	`for (; i < n; ++i) {`
`465`	`465`	`float val = x[i] - mean;`
	`466`	`+ y[i] = val;`
`466`	`467`	`val *= val;`
`467`	`468`	`sum += (ggml_float)val;`
`468`		`- y[i] = val;`
`469`	`469`	`}`
`470`	`470`	`return sum/n;`
`471`	`471`	`}`