diff --git a/modules/juce_dsp/containers/juce_SIMDRegister_test.cpp b/modules/juce_dsp/containers/juce_SIMDRegister_test.cpp
index c84e34ed23..5b13b63a21 100644
--- a/modules/juce_dsp/containers/juce_SIMDRegister_test.cpp
+++ b/modules/juce_dsp/containers/juce_SIMDRegister_test.cpp
@@ -652,6 +652,43 @@ public:
         }
     };
 
+    struct CheckBoolEquals
+    {
+        template <typename type>
+        static void run (UnitTest& u, Random& random)
+        {
+            bool is_signed = std::is_signed<type>::value;
+            type array [SIMDRegister<type>::SIMDNumElements];
+
+            auto value = is_signed ? static_cast<type> ((random.nextFloat() * 16.0) - 8.0)
+                                   : static_cast<type> (random.nextFloat() * 8.0);
+
+            std::fill (array, array + SIMDRegister<type>::SIMDNumElements, value);
+            SIMDRegister<type> a, b;
+            copy (a, array);
+
+            u.expect (a == value);
+            u.expect (! (a != value));
+            value += 1;
+
+            u.expect (a != value);
+            u.expect (! (a == value));
+
+            SIMDRegister_test_internal::fillRandom (array, SIMDRegister<type>::SIMDNumElements, random);
+            copy (a, array);
+            copy (b, array);
+
+            u.expect (a == b);
+            u.expect (! (a != b));
+
+            SIMDRegister_test_internal::fillRandom (array, SIMDRegister<type>::SIMDNumElements, random);
+            copy (b, array);
+
+            u.expect (a != b);
+            u.expect (! (a == b));
+        }
+    };
+
     //==============================================================================
     template <class TheTest>
     void runTestForAllTypes (const char* unitTestName)
@@ -708,6 +745,7 @@ public:
         runTestForAllTypes<BitOperatorTests<BitXOR>> ("BitXOROperators");
 
         runTestNonComplex<CheckComparisonOps> ("CheckComparisons");
+        runTestNonComplex<CheckBoolEquals> ("CheckBoolEquals");
         runTestNonComplex<CheckMinMax> ("CheckMinMax");
 
         runTestForAllTypes<CheckMultiplyAdd> ("CheckMultiplyAdd");
diff --git a/modules/juce_dsp/native/juce_avx_SIMDNativeOps.h b/modules/juce_dsp/native/juce_avx_SIMDNativeOps.h
index 696f810e3b..c7a6b7b945 100644
--- a/modules/juce_dsp/native/juce_avx_SIMDNativeOps.h
+++ b/modules/juce_dsp/native/juce_avx_SIMDNativeOps.h
@@ -31,6 +31,11 @@ namespace dsp
 
 #ifndef DOXYGEN
 
+#if JUCE_GCC
+ #pragma GCC diagnostic push
+ #pragma GCC diagnostic ignored "-Wignored-attributes"
+#endif
+
 #ifdef _MSC_VER
  #define DECLARE_AVX_SIMD_CONST(type, name) \
     static __declspec(align(32)) const type name[32 / sizeof (type)]
@@ -700,5 +705,9 @@ struct SIMDNativeOps<uint64_t>
 
 #endif
 
+#if JUCE_GCC
+ #pragma GCC diagnostic pop
+#endif
+
 } // namespace dsp
 } // namespace juce
diff --git a/modules/juce_dsp/native/juce_neon_SIMDNativeOps.h b/modules/juce_dsp/native/juce_neon_SIMDNativeOps.h
index 2fc7b1ee48..b2c70a0bf4 100644
--- a/modules/juce_dsp/native/juce_neon_SIMDNativeOps.h
+++ b/modules/juce_dsp/native/juce_neon_SIMDNativeOps.h
@@ -31,6 +31,11 @@ namespace dsp
 
 #ifndef DOXYGEN
 
+#if JUCE_GCC
+ #pragma GCC diagnostic push
+ #pragma GCC diagnostic ignored "-Wignored-attributes"
+#endif
+
 #ifdef _MSC_VER
  #define DECLARE_NEON_SIMD_CONST(type, name) \
     static __declspec(align(16)) const type name [16 / sizeof (type)]
@@ -168,7 +173,7 @@ struct SIMDNativeOps<int8_t>
     static forcedinline vSIMDType notEqual (vSIMDType a, vSIMDType b) noexcept               { return bit_not (equal (a, b)); }
     static forcedinline vSIMDType greaterThan (vSIMDType a, vSIMDType b) noexcept            { return (vSIMDType) vcgtq_s8 (a, b); }
     static forcedinline vSIMDType greaterThanOrEqual (vSIMDType a, vSIMDType b) noexcept     { return (vSIMDType) vcgeq_s8 (a, b); }
-    static forcedinline bool      allEqual (vSIMDType a, vSIMDType b) noexcept               { return (SIMDNativeOps<int32_t>::sum (notEqual (a, b)) == 0); }
+    static forcedinline bool      allEqual (vSIMDType a, vSIMDType b) noexcept               { return (SIMDNativeOps<int32_t>::sum ((SIMDNativeOps<int32_t>::vSIMDType) notEqual (a, b)) == 0); }
     static forcedinline vSIMDType multiplyAdd (vSIMDType a, vSIMDType b, vSIMDType c) noexcept  { return vmlaq_s8 (a, b, c); }
     static forcedinline int8_t sum (vSIMDType a) noexcept { return fb::sum (a); }
 };
@@ -206,7 +211,7 @@ struct SIMDNativeOps<uint8_t>
     static forcedinline vSIMDType notEqual (vSIMDType a, vSIMDType b) noexcept               { return bit_not (equal (a, b)); }
     static forcedinline vSIMDType greaterThan (vSIMDType a, vSIMDType b) noexcept            { return (vSIMDType) vcgtq_u8 (a, b); }
     static forcedinline vSIMDType greaterThanOrEqual (vSIMDType a, vSIMDType b) noexcept     { return (vSIMDType) vcgeq_u8 (a, b); }
-    static forcedinline bool      allEqual (vSIMDType a, vSIMDType b) noexcept               { return (SIMDNativeOps<uint32_t>::sum (notEqual (a, b)) == 0); }
+    static forcedinline bool      allEqual (vSIMDType a, vSIMDType b) noexcept               { return (SIMDNativeOps<uint32_t>::sum ((SIMDNativeOps<uint32_t>::vSIMDType) notEqual (a, b)) == 0); }
     static forcedinline vSIMDType multiplyAdd (vSIMDType a, vSIMDType b, vSIMDType c) noexcept  { return vmlaq_u8 (a, b, c); }
     static forcedinline uint8_t sum (vSIMDType a) noexcept { return fb::sum (a); }
 };
@@ -244,7 +249,7 @@ struct SIMDNativeOps<int16_t>
     static forcedinline vSIMDType notEqual (vSIMDType a, vSIMDType b) noexcept               { return bit_not (equal (a, b)); }
     static forcedinline vSIMDType greaterThan (vSIMDType a, vSIMDType b) noexcept            { return (vSIMDType) vcgtq_s16 (a, b); }
     static forcedinline vSIMDType greaterThanOrEqual (vSIMDType a, vSIMDType b) noexcept     { return (vSIMDType) vcgeq_s16 (a, b); }
-    static forcedinline bool      allEqual (vSIMDType a, vSIMDType b) noexcept               { return (SIMDNativeOps<int32_t>::sum (notEqual (a, b)) == 0); }
+    static forcedinline bool      allEqual (vSIMDType a, vSIMDType b) noexcept               { return (SIMDNativeOps<int32_t>::sum ((SIMDNativeOps<int32_t>::vSIMDType) notEqual (a, b)) == 0); }
     static forcedinline vSIMDType multiplyAdd (vSIMDType a, vSIMDType b, vSIMDType c) noexcept  { return vmlaq_s16 (a, b, c); }
     static forcedinline int16_t sum (vSIMDType a) noexcept { return fb::sum (a); }
 };
@@ -283,7 +288,7 @@ struct SIMDNativeOps<uint16_t>
     static forcedinline vSIMDType notEqual (vSIMDType a, vSIMDType b) noexcept               { return bit_not (equal (a, b)); }
     static forcedinline vSIMDType greaterThan (vSIMDType a, vSIMDType b) noexcept            { return (vSIMDType) vcgtq_u16 (a, b); }
     static forcedinline vSIMDType greaterThanOrEqual (vSIMDType a, vSIMDType b) noexcept     { return (vSIMDType) vcgeq_u16 (a, b); }
-    static forcedinline bool      allEqual (vSIMDType a, vSIMDType b) noexcept               { return (SIMDNativeOps<uint32_t>::sum (notEqual (a, b)) == 0); }
+    static forcedinline bool      allEqual (vSIMDType a, vSIMDType b) noexcept               { return (SIMDNativeOps<uint32_t>::sum ((SIMDNativeOps<uint32_t>::vSIMDType) notEqual (a, b)) == 0); }
     static forcedinline vSIMDType multiplyAdd (vSIMDType a, vSIMDType b, vSIMDType c) noexcept  { return vmlaq_u16 (a, b, c); }
     static forcedinline uint16_t sum (vSIMDType a) noexcept { return fb::sum (a); }
 };
@@ -321,7 +326,7 @@ struct SIMDNativeOps<int64_t>
     static forcedinline vSIMDType notEqual (vSIMDType a, vSIMDType b) noexcept               { return fb::notEqual (a, b); }
     static forcedinline vSIMDType greaterThan (vSIMDType a, vSIMDType b) noexcept            { return fb::greaterThan (a, b); }
     static forcedinline vSIMDType greaterThanOrEqual (vSIMDType a, vSIMDType b) noexcept     { return fb::greaterThanOrEqual (a, b); }
-    static forcedinline bool      allEqual (vSIMDType a, vSIMDType b) noexcept               { return (SIMDNativeOps<int32_t>::sum (notEqual (a, b)) == 0); }
+    static forcedinline bool      allEqual (vSIMDType a, vSIMDType b) noexcept               { return (SIMDNativeOps<int32_t>::sum ((SIMDNativeOps<int32_t>::vSIMDType) notEqual (a, b)) == 0); }
     static forcedinline vSIMDType multiplyAdd (vSIMDType a, vSIMDType b, vSIMDType c) noexcept  { return fb::multiplyAdd (a, b, c); }
     static forcedinline int64_t sum (vSIMDType a) noexcept { return fb::sum (a); }
 };
@@ -360,7 +365,7 @@ struct SIMDNativeOps<uint64_t>
     static forcedinline vSIMDType notEqual (vSIMDType a, vSIMDType b) noexcept               { return fb::notEqual (a, b); }
     static forcedinline vSIMDType greaterThan (vSIMDType a, vSIMDType b) noexcept            { return fb::greaterThan (a, b); }
     static forcedinline vSIMDType greaterThanOrEqual (vSIMDType a, vSIMDType b) noexcept     { return fb::greaterThanOrEqual (a, b); }
-    static forcedinline bool      allEqual (vSIMDType a, vSIMDType b) noexcept               { return (SIMDNativeOps<uint32_t>::sum (notEqual (a, b)) == 0); }
+    static forcedinline bool      allEqual (vSIMDType a, vSIMDType b) noexcept               { return (SIMDNativeOps<uint32_t>::sum ((SIMDNativeOps<uint32_t>::vSIMDType) notEqual (a, b)) == 0); }
     static forcedinline vSIMDType multiplyAdd (vSIMDType a, vSIMDType b, vSIMDType c) noexcept  { return fb::multiplyAdd (a, b, c); }
     static forcedinline uint64_t sum (vSIMDType a) noexcept { return fb::sum (a); }
 };
@@ -401,7 +406,7 @@ struct SIMDNativeOps<float>
     static forcedinline vSIMDType notEqual (vSIMDType a, vSIMDType b) noexcept               { return bit_not (equal (a, b)); }
     static forcedinline vSIMDType greaterThan (vSIMDType a, vSIMDType b) noexcept            { return (vSIMDType) vcgtq_f32 (a, b); }
     static forcedinline vSIMDType greaterThanOrEqual (vSIMDType a, vSIMDType b) noexcept     { return (vSIMDType) vcgeq_f32 (a, b); }
-    static forcedinline bool      allEqual (vSIMDType a, vSIMDType b) noexcept               { return (SIMDNativeOps<uint32_t>::sum (notEqual (a, b)) == 0); }
+    static forcedinline bool      allEqual (vSIMDType a, vSIMDType b) noexcept               { return (SIMDNativeOps<uint32_t>::sum ((SIMDNativeOps<uint32_t>::vSIMDType) notEqual (a, b)) == 0); }
     static forcedinline vSIMDType multiplyAdd (vSIMDType a, vSIMDType b, vSIMDType c) noexcept  { return vmlaq_f32 (a, b, c); }
     static forcedinline vSIMDType dupeven (vSIMDType a) noexcept { return fb::shuffle<(0 << 0) | (0 << 2) | (2 << 4) | (2 << 6)>     (a); }
     static forcedinline vSIMDType dupodd  (vSIMDType a) noexcept { return fb::shuffle<(1 << 0) | (1 << 2) | (3 << 4) | (3 << 6)>     (a); }
@@ -462,5 +467,9 @@ struct SIMDNativeOps<double>
 
 #endif
 
+#if JUCE_GCC
+ #pragma GCC diagnostic pop
+#endif
+
 } // namespace dsp
 } // namespace juce
diff --git a/modules/juce_dsp/native/juce_sse_SIMDNativeOps.h b/modules/juce_dsp/native/juce_sse_SIMDNativeOps.h
index a11186abf9..37b308c0d4 100644
--- a/modules/juce_dsp/native/juce_sse_SIMDNativeOps.h
+++ b/modules/juce_dsp/native/juce_sse_SIMDNativeOps.h
@@ -31,6 +31,11 @@ namespace dsp
 
 #ifndef DOXYGEN
 
+#if JUCE_GCC
+ #pragma GCC diagnostic push
+ #pragma GCC diagnostic ignored "-Wignored-attributes"
+#endif
+
 #ifdef _MSC_VER
  #define DECLARE_SSE_SIMD_CONST(type, name) \
     static __declspec(align(16)) const type name [16 / sizeof (type)]
@@ -867,5 +872,9 @@ struct SIMDNativeOps<uint64_t>
 
 #endif
 
+#if JUCE_GCC
+ #pragma GCC diagnostic pop
+#endif
+
 } // namespace dsp
 } // namespace juce