From 13c5c4cc4c4a82c25a24dd43d8929c87682e808e Mon Sep 17 00:00:00 2001
From: Cary Phillips <cary@ilm.com>
Date: Tue, 8 Aug 2023 16:19:25 -0700
Subject: [PATCH] Initialize regs[] to 0 in check_for_x86_simd

gcc warns of a potentially uninitialized memory reference, in the case
where ``__get_cpuid()`` fails to assign values to all its parameters.

Signed-off-by: Cary Phillips <cary@ilm.com>
---
 src/lib/OpenEXRCore/internal_cpuid.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/lib/OpenEXRCore/internal_cpuid.h b/src/lib/OpenEXRCore/internal_cpuid.h
index 8a2573b8b6..b839665f9f 100644
--- a/src/lib/OpenEXRCore/internal_cpuid.h
+++ b/src/lib/OpenEXRCore/internal_cpuid.h
@@ -49,14 +49,14 @@ check_for_x86_simd (int* f16c, int* avx, int* sse2)
 #elif OPENEXR_ENABLE_X86_SIMD_CHECK
 
 #   if defined(_MSC_VER) && defined(_WIN32)
-    int regs[4], osxsave;
+    int regs[4]={0}, osxsave;
 
     __cpuid (regs, 0);
     if (regs[0] >= 1) { __cpuidex (regs, 1, 0); }
     else
         regs[2] = 0;
 #   else
-    unsigned int regs[4], osxsave;
+    unsigned int regs[4]={0}, osxsave;
     __get_cpuid (0, &regs[0], &regs[1], &regs[2], &regs[3]);
     if (regs[0] >= 1)
     {