diff --git a/ggml/src/ggml-metal/ggml-metal.metal b/ggml/src/ggml-metal/ggml-metal.metal
index 4eefd4ba76..535a4bee6d 100644
--- a/ggml/src/ggml-metal/ggml-metal.metal
+++ b/ggml/src/ggml-metal/ggml-metal.metal
@@ -2394,9 +2394,9 @@ void kernel_mul_mv_impl(
                 sumf += (T0) x[i] * (T1) y[i];
             }
 
-            float all_sum = simd_sum(sumf);
+            float sum_all = simd_sum(sumf);
             if (tiisg == 0) {
-                dst_f32[(uint64_t)r1*args.ne0 + r0] = all_sum;
+                dst_f32[(uint64_t)r1*args.ne0 + r0] = sum_all;
             }
         }
     } else {
@@ -2417,10 +2417,10 @@ void kernel_mul_mv_impl(
                 sumf += dot((float4) x4[i], (float4) y4[i]);
             }
 
-            float all_sum = simd_sum(sumf);
+            float sum_all = simd_sum(sumf);
             if (tiisg == 0) {
-                for (int i = 4*(args.ne00/4); i < args.ne00; ++i) all_sum += (float) (x[i] * y[i]);
-                dst_f32[(uint64_t)r1*args.ne0 + r0] = all_sum;
+                for (int i = 4*(args.ne00/4); i < args.ne00; ++i) sum_all += (float) (x[i] * y[i]);
+                dst_f32[(uint64_t)r1*args.ne0 + r0] = sum_all;
             }
         }
     }
@@ -2482,9 +2482,9 @@ kernel void kernel_mul_mv_1row(
         for (int i = tiisg; i < args.ne00; i += 32) {
             sumf += (float) x[i] * (float) y[i];
         }
-        float all_sum = simd_sum(sumf);
+        float sum_all = simd_sum(sumf);
         if (tiisg == 0) {
-            dst_f32[r0] = all_sum;
+            dst_f32[r0] = sum_all;
         }
     } else {
         device const T4     * x4 = (device const T4     *) x;
@@ -2494,11 +2494,11 @@ kernel void kernel_mul_mv_1row(
             sumf += dot((float4) x4[i], y4[i]);
         }
 
-        float all_sum = simd_sum(sumf);
+        float sum_all = simd_sum(sumf);
 
         if (tiisg == 0) {
-            for (int i = 4*(args.ne00/4); i < args.ne00; ++i) all_sum += (float) (x[i] * y[i]);
-            dst_f32[r0] = all_sum;
+            for (int i = 4*(args.ne00/4); i < args.ne00; ++i) sum_all += (float) (x[i] * y[i]);
+            dst_f32[r0] = sum_all;
         }
     }
 }
@@ -2543,9 +2543,9 @@ kernel void kernel_mul_mv_l4(
             sumf += dot((float4) x4[i], y4[i]);
         }
 
-        float all_sum = simd_sum(sumf);
+        float sum_all = simd_sum(sumf);
         if (tiisg == 0) {
-            dst_f32[(uint64_t)r1*args.ne0 + r0] = all_sum;
+            dst_f32[(uint64_t)r1*args.ne0 + r0] = sum_all;
         }
     }
 }
@@ -4447,7 +4447,7 @@ void kernel_mul_mv_q2_K_f32_impl(
     device const float      * y = (device const float      *) (src1 + offset1);
 
     float yl[32];
-    float sumf[nr0]={0.f}, all_sum;
+    float sumf[nr0]={0.f};
 
     const int ix = tiisg/8;  // 0...3
     const int it = tiisg%8;  // 0...7
@@ -4503,9 +4503,9 @@ void kernel_mul_mv_q2_K_f32_impl(
     device float * dst_f32 = (device float *) dst + (uint64_t)im*args.ne0*args.ne1 + (uint64_t)r1*args.ne0;
 
     for (int row = 0; row < nr0 && first_row + row < args.ne0; ++row) {
-        all_sum = simd_sum(sumf[row]);
+        float sum_all = simd_sum(sumf[row]);
         if (tiisg == 0) {
-            dst_f32[first_row + row] = all_sum;
+            dst_f32[first_row + row] = sum_all;
         }
     }
 }
@@ -4727,7 +4727,7 @@ void kernel_mul_mv_q4_K_f32_impl(
     float yl[16];
     float yh[16];
 
-    float sumf[N_R0_Q4_K]={0.f}, all_sum;
+    float sumf[N_R0_Q4_K]={0.f};
 
     device const float * y4 = y + ix * QK_K + 64 * iq + 8 * ir;
 
@@ -4793,9 +4793,9 @@ void kernel_mul_mv_q4_K_f32_impl(
     device float * dst_f32 = (device float *) dst + (int64_t)im*args.ne0*args.ne1 + (int64_t)r1*args.ne0;
 
     for (int row = 0; row < N_R0_Q4_K && first_row + row < args.ne0; ++row) {
-        all_sum = simd_sum(sumf[row]);
+        float sum_all = simd_sum(sumf[row]);
         if (tiisg == 0) {
-            dst_f32[first_row + row] = all_sum;
+            dst_f32[first_row + row] = sum_all;
         }
     }
 }
@@ -4981,7 +4981,6 @@ void kernel_mul_mv_q6_K_f32_impl(
     // TODO: support nr0 > 1
     static_assert(nr0 == 1, "nr0 > 1 not supported");
     float sumf[1] = { 0.f };
-    float all_sum;
 
     const short tid = tiisg/2;
     const short ix  = tiisg%2;
@@ -5020,9 +5019,9 @@ void kernel_mul_mv_q6_K_f32_impl(
     device float * dst_f32 = (device float *) dst + (uint64_t)im*args.ne0*args.ne1 + (uint64_t)r1*args.ne0;
 
     for (int row = 0; row < nr0 && first_row + row < args.ne0; ++row) {
-        all_sum = simd_sum(sumf[row]);
+        float sum_all = simd_sum(sumf[row]);
         if (tiisg == 0) {
-            dst_f32[first_row + row] = all_sum;
+            dst_f32[first_row + row] = sum_all;
         }
     }
 }
@@ -5070,7 +5069,7 @@ void kernel_mul_mv_iq2_xxs_f32_impl(
     device const float         * y = (device const float         *) (src1 + offset1);
 
     float yl[32];
-    float sumf[nr0]={0.f}, all_sum;
+    float sumf[nr0]={0.f};
 
     const int nb32 = nb * (QK_K / 32);
 
@@ -5130,9 +5129,9 @@ void kernel_mul_mv_iq2_xxs_f32_impl(
     device float * dst_f32 = (device float *) dst + (uint64_t)im*args.ne0*args.ne1 + (uint64_t)r1*args.ne0;
 
     for (int row = 0; row < nr0 && first_row + row < args.ne0; ++row) {
-        all_sum = simd_sum(sumf[row]);
+        float sum_all = simd_sum(sumf[row]);
         if (tiisg == 0) {
-            dst_f32[first_row + row] = all_sum * 0.25f;
+            dst_f32[first_row + row] = sum_all * 0.25f;
         }
     }
 }
@@ -5178,7 +5177,7 @@ void kernel_mul_mv_iq2_xs_f32_impl(
     device const float        * y = (device const float        *) (src1 + offset1);
 
     float yl[32];
-    float sumf[nr0]={0.f}, all_sum;
+    float sumf[nr0]={0.f};
 
     const int nb32 = nb * (QK_K / 32);
 
@@ -5248,9 +5247,9 @@ void kernel_mul_mv_iq2_xs_f32_impl(
     device float * dst_f32 = (device float *) dst + (uint64_t)im*args.ne0*args.ne1 + (uint64_t)r1*args.ne0;
 
     for (int row = 0; row < nr0 && first_row + row < args.ne0; ++row) {
-        all_sum = simd_sum(sumf[row]);
+        float sum_all = simd_sum(sumf[row]);
         if (tiisg == 0) {
-            dst_f32[first_row + row] = all_sum * 0.25f;
+            dst_f32[first_row + row] = sum_all * 0.25f;
         }
     }
 }
@@ -5297,7 +5296,7 @@ void kernel_mul_mv_iq3_xxs_f32_impl(
     device const float         * y = (device const float         *) (src1 + offset1);
 
     float yl[32];
-    float sumf[nr0]={0.f}, all_sum;
+    float sumf[nr0]={0.f};
 
     const int nb32 = nb * (QK_K / 32);
 
@@ -5358,9 +5357,9 @@ void kernel_mul_mv_iq3_xxs_f32_impl(
     device float * dst_f32 = (device float *) dst + (uint64_t)im*args.ne0*args.ne1 + (uint64_t)r1*args.ne0;
 
     for (int row = 0; row < nr0 && first_row + row < args.ne0; ++row) {
-        all_sum = simd_sum(sumf[row]);
+        float sum_all = simd_sum(sumf[row]);
         if (tiisg == 0) {
-            dst_f32[first_row + row] = all_sum * 0.5f;
+            dst_f32[first_row + row] = sum_all * 0.5f;
         }
     }
 }
@@ -5407,7 +5406,7 @@ void kernel_mul_mv_iq3_s_f32_impl(
     device const float       * y = (device const float       *) (src1 + offset1);
 
     float yl[32];
-    float sumf[nr0]={0.f}, all_sum;
+    float sumf[nr0]={0.f};
 
     const int nb32 = nb * (QK_K / 32);
 
@@ -5470,9 +5469,9 @@ void kernel_mul_mv_iq3_s_f32_impl(
     device float * dst_f32 = (device float *) dst + (uint64_t)im*args.ne0*args.ne1 + (uint64_t)r1*args.ne0;
 
     for (int row = 0; row < nr0 && first_row + row < args.ne0; ++row) {
-        all_sum = simd_sum(sumf[row]);
+        float sum_all = simd_sum(sumf[row]);
         if (tiisg == 0) {
-            dst_f32[first_row + row] = all_sum;
+            dst_f32[first_row + row] = sum_all;
         }
     }
 }
@@ -5519,7 +5518,7 @@ void kernel_mul_mv_iq2_s_f32_impl(
     device const float       * y = (device const float       *) (src1 + offset1);
 
     float yl[32];
-    float sumf[nr0]={0.f}, all_sum;
+    float sumf[nr0]={0.f};
 
     const int nb32 = nb * (QK_K / 32);
 
@@ -5583,9 +5582,9 @@ void kernel_mul_mv_iq2_s_f32_impl(
     device float * dst_f32 = (device float *) dst + (uint64_t)im*args.ne0*args.ne1 + (uint64_t)r1*args.ne0;
 
     for (int row = 0; row < nr0 && first_row + row < args.ne0; ++row) {
-        all_sum = simd_sum(sumf[row]);
+        float sum_all = simd_sum(sumf[row]);
         if (tiisg == 0) {
-            dst_f32[first_row + row] = all_sum * 0.25f;
+            dst_f32[first_row + row] = sum_all * 0.25f;
         }
     }
 }
@@ -5632,7 +5631,7 @@ void kernel_mul_mv_iq1_s_f32_impl(
     device const float       * y = (device const float       *) (src1 + offset1);
 
     float yl[32];
-    float sumf[nr0]={0.f}, all_sum;
+    float sumf[nr0]={0.f};
 
     const int nb32 = nb * (QK_K / 32);
 
@@ -5683,9 +5682,9 @@ void kernel_mul_mv_iq1_s_f32_impl(
     device float * dst_f32 = (device float *) dst + (uint64_t)im*args.ne0*args.ne1 + (uint64_t)r1*args.ne0;
 
     for (int row = 0; row < nr0 && first_row + row < args.ne0; ++row) {
-        all_sum = simd_sum(sumf[row]);
+        float sum_all = simd_sum(sumf[row]);
         if (tiisg == 0) {
-            dst_f32[first_row + row] = all_sum;
+            dst_f32[first_row + row] = sum_all;
         }
     }
 }
@@ -5732,7 +5731,7 @@ void kernel_mul_mv_iq1_m_f32_impl(
     device const float       * y = (device const float       *) (src1 + offset1);
 
     float yl[32];
-    float sumf[nr0]={0.f}, all_sum;
+    float sumf[nr0]={0.f};
 
     const int nb32 = nb * (QK_K / 32);
 
@@ -5792,9 +5791,9 @@ void kernel_mul_mv_iq1_m_f32_impl(
     device float * dst_f32 = (device float *) dst + (uint64_t)im*args.ne0*args.ne1 + (uint64_t)r1*args.ne0;
 
     for (int row = 0; row < nr0 && first_row + row < args.ne0; ++row) {
-        all_sum = simd_sum(sumf[row]);
+        float sum_all = simd_sum(sumf[row]);
         if (tiisg == 0) {
-            dst_f32[first_row + row] = all_sum;
+            dst_f32[first_row + row] = sum_all;
         }
     }
 }
@@ -5848,7 +5847,7 @@ void kernel_mul_mv_iq4_nl_f32_impl(
     threadgroup_barrier(mem_flags::mem_threadgroup);
 
     float4 yl[4];
-    float sumf[nr0]={0.f}, all_sum;
+    float sumf[nr0]={0.f};
 
     device const float * yb = y + ix * QK4_NL + it * 8;
 
@@ -5897,9 +5896,9 @@ void kernel_mul_mv_iq4_nl_f32_impl(
     device float * dst_f32 = (device float *) dst + (uint64_t)im*args.ne0*args.ne1 + (uint64_t)r1*args.ne0;
 
     for (int row = 0; row < nr0 && first_row + row < args.ne0; ++row) {
-        all_sum = simd_sum(sumf[row]);
+        float sum_all = simd_sum(sumf[row]);
         if (tiisg == 0) {
-            dst_f32[first_row + row] = all_sum;
+            dst_f32[first_row + row] = sum_all;
         }
     }
 }
@@ -5954,7 +5953,7 @@ void kernel_mul_mv_iq4_xs_f32_impl(
     threadgroup_barrier(mem_flags::mem_threadgroup);
 
     float4 yl[4];
-    float sumf[nr0]={0.f}, all_sum;
+    float sumf[nr0]={0.f};
 
     device const float * yb = y + ix * QK_K + ib * 32 + il * 8;
 
@@ -6000,9 +5999,9 @@ void kernel_mul_mv_iq4_xs_f32_impl(
     device float * dst_f32 = (device float *) dst + (uint64_t)im*args.ne0*args.ne1 + (uint64_t)r1*args.ne0;
 
     for (int row = 0; row < nr0 && first_row + row < args.ne0; ++row) {
-        all_sum = simd_sum(sumf[row]);
+        float sum_all = simd_sum(sumf[row]);
         if (tiisg == 0) {
-            dst_f32[first_row + row] = all_sum;
+            dst_f32[first_row + row] = sum_all;
         }
     }
 }