Removed optimization flags.

Due optimizing the code is optional for using the sanitizers, the user should
set an optimisation level by his choice on his own.

cmake/FindASan.cmake

@@ -26,10 +26,10 @@ option(SANITIZE_ADDRESS "Enable AddressSanitizer for sanitized targets." Off)
 
 set(FLAG_CANDIDATES
     # Clang 3.2+ use this version
-    "-g -O1 -fsanitize=address"
+    "-g -fsanitize=address"
 
     # Older deprecated flag for ASan
-    "-g -O1 -faddress-sanitizer"
+    "-g -faddress-sanitizer"
 )
 
 

cmake/FindMSan.cmake

@@ -25,7 +25,7 @@
 option(SANITIZE_MEMORY "Enable MemorySanitizer for sanitized targets." Off)
 
 set(FLAG_CANDIDATES
-    "-g -O1 -fsanitize=memory"
+    "-g -fsanitize=memory"
 )
 
 

cmake/FindTSan.cmake

@@ -25,7 +25,7 @@
 option(SANITIZE_THREAD "Enable ThreadSanitizer for sanitized targets." Off)
 
 set(FLAG_CANDIDATES
-    "-g -O1 -fsanitize=thread"
+    "-g -fsanitize=thread"
 )
 
 

cmake/FindUBSan.cmake

@@ -26,7 +26,7 @@ option(SANITIZE_UNDEFINED
     "Enable UndefinedBehaviorSanitizer for sanitized targets." Off)
 
 set(FLAG_CANDIDATES
-    "-g -O1 -fsanitize=undefined"
+    "-g -fsanitize=undefined"
 )