diff --git a/spirv_glsl.cpp b/spirv_glsl.cpp
index 8d10b992..a8855987 100644
--- a/spirv_glsl.cpp
+++ b/spirv_glsl.cpp
@@ -5254,12 +5254,12 @@ case OpGroupNonUniform##op: \
 
 string CompilerGLSL::bitcast_glsl_op(const SPIRType &out_type, const SPIRType &in_type)
 {
-	assert(out_type.basetype != SPIRType::Boolean);
-	assert(in_type.basetype != SPIRType::Boolean);
-
 	if (out_type.basetype == in_type.basetype)
 		return "";
 
+	assert(out_type.basetype != SPIRType::Boolean);
+	assert(in_type.basetype != SPIRType::Boolean);
+
 	bool integral_cast = type_is_integral(out_type) && type_is_integral(in_type);
 	bool same_size_cast = out_type.width == in_type.width;
 
diff --git a/spirv_msl.cpp b/spirv_msl.cpp
index 5f2cc4f0..0e1e733d 100644
--- a/spirv_msl.cpp
+++ b/spirv_msl.cpp
@@ -5467,12 +5467,12 @@ string CompilerMSL::image_type_glsl(const SPIRType &type, uint32_t id)
 
 string CompilerMSL::bitcast_glsl_op(const SPIRType &out_type, const SPIRType &in_type)
 {
-	assert(out_type.basetype != SPIRType::Boolean);
-	assert(in_type.basetype != SPIRType::Boolean);
-
 	if (out_type.basetype == in_type.basetype)
 		return "";
 
+	assert(out_type.basetype != SPIRType::Boolean);
+	assert(in_type.basetype != SPIRType::Boolean);
+
 	bool integral_cast = type_is_integral(out_type) && type_is_integral(in_type);
 	bool same_size_cast = out_type.width == in_type.width;