Fixed high impact static analysis issues

Initialized ymm and xmm registers to zero to address
un-inilizaed variable errors reported in static analsys.

AMD-Internal: [CPUPL-2078]
Change-Id: Icfcc008a0f244278efd8145d7feef764ed5fcc04

kernels/zen/3/bli_dgemm_ref_k1.c

@@ -4,7 +4,7 @@
    An object-based framework for developing high-performance BLAS-like
    libraries.
 
-   Copyright (C) 2021, Advanced Micro Devices, Inc. All rights reserved.
+   Copyright (C) 2022, Advanced Micro Devices, Inc. All rights reserved.
 
    Redistribution and use in source and binary forms, with or without
    modification, are permitted provided that the following conditions are
@@ -394,6 +394,7 @@ void bli_dgemm_ref_k1_nn
 
         if(m_rem == 1)
         {
+            ymm0 = _mm256_setzero_pd();
             ymm3 = _mm256_setzero_pd();
             ymm5 = _mm256_setzero_pd();
             ymm7 = _mm256_setzero_pd();
@@ -690,6 +691,7 @@ void bli_dgemm_ref_k1_nn
 
         if(m_rem == 1)
         {
+            ymm0 = _mm256_setzero_pd();
             ymm3 = _mm256_setzero_pd();
             ymm5 = _mm256_setzero_pd();
             ymm7 = _mm256_setzero_pd();
@@ -897,6 +899,7 @@ void bli_dgemm_ref_k1_nn
 
         if(m_rem == 1)
         {
+            ymm0 = _mm256_setzero_pd();
             ymm3 = _mm256_setzero_pd();
             ymm5 = _mm256_setzero_pd();
             ymm15 = _mm256_setzero_pd();
@@ -1052,6 +1055,7 @@ void bli_dgemm_ref_k1_nn
 
         if(m_rem == 1)
         {
+            ymm0 = _mm256_setzero_pd();
             ymm3 = _mm256_setzero_pd();
             ymm15 = _mm256_setzero_pd();
 

kernels/zen/3/sup/bli_gemmsup_rv_zen_asm_c3x8n.c

@@ -6,7 +6,7 @@
    libraries.
 
    Copyright (C) 2014, The University of Texas at Austin
-   Copyright (C) 2020-2021, Advanced Micro Devices, Inc.
+   Copyright (C) 2020-2022, Advanced Micro Devices, Inc. All rights reserved.
 
    Redistribution and use in source and binary forms, with or without
    modification, are permitted provided that the following conditions are
@@ -138,6 +138,8 @@ void bli_cgemmsup_rv_zen_asm_3x8n
 	for (n_iter = 0; n_iter < n0 / 8; n_iter++)
 	{
 		// clear scratch registers.
+		xmm0 = _mm_setzero_ps();
+		xmm3 = _mm_setzero_ps();
 		ymm4 = _mm256_setzero_ps();
 		ymm5 = _mm256_setzero_ps();
 		ymm6 = _mm256_setzero_ps();
@@ -572,6 +574,8 @@ void bli_cgemmsup_rv_zen_asm_2x8n
 	for (n_iter = 0; n_iter < n0 / 8; n_iter++)
 	{
 		// clear scratch registers.
+		xmm0 = _mm_setzero_ps();
+		xmm3 = _mm_setzero_ps();
 		ymm4 = _mm256_setzero_ps();
 		ymm5 = _mm256_setzero_ps();
 		ymm6 = _mm256_setzero_ps();
@@ -919,6 +923,8 @@ void bli_cgemmsup_rv_zen_asm_1x8n
 	for (n_iter = 0; n_iter < n0 / 8; n_iter++)
 	{
 		// clear scratch registers.
+		xmm0 = _mm_setzero_ps();
+		xmm3 = _mm_setzero_ps();
 		ymm4 = _mm256_setzero_ps();
 		ymm5 = _mm256_setzero_ps();
 		ymm6 = _mm256_setzero_ps();