From ae98985f5599617be94042f4aa3637d10014ce89 Mon Sep 17 00:00:00 2001
From: Marcin Malagowski <mmalagowski@nvidia.com>
Date: Mon, 9 Feb 2026 15:10:55 +0200
Subject: [PATCH] Fix Clang compilation errors with VLA initialization

Signed-off-by: David Addison <daddison@nvidia.com>
---
 src/common.cu | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/common.cu b/src/common.cu
index f7a3f28..c54684e 100644
--- a/src/common.cu
+++ b/src/common.cu
@@ -1344,8 +1344,10 @@ testResult_t run() {
 #if NCCL_VERSION_CODE >= NCCL_VERSION(2,28,0)
   ncclDevComm devComms[nThreads*nGpus];
 #endif
-  int64_t initGpuMem[nThreads] = {0};
-  int64_t bufferMemory[nThreads] = {0};
+  int64_t initGpuMem[nThreads];
+  int64_t bufferMemory[nThreads];
+  memset(initGpuMem, 0, sizeof(initGpuMem));
+  memset(bufferMemory, 0, sizeof(bufferMemory));
   if (!parallel_init) {
     // Capture the memory used by the GPUs before initializing the NCCL communicators
     int64_t* initFreeGpuMem = (int64_t*)calloc(nGpus*3, sizeof(int64_t));