Always enable MemorySanitizer instrumentation for setup routines

Previously, MemorySanitizer builds would only instrument JIT routines
when compiled with REACTOR_ENABLE_MEMORY_SANITIZER_INSTRUMENTATION=true,
due to causing timeouts in some test suites. This change enables
instrumentation of setup routines, which is not expected to add much
overhead.

Bug: b/188205704
Change-Id: Ida4e481efab1e78509fddbc654a20359d8c73142
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/65249
Reviewed-by: Alexis Hétu <sugoi@google.com>
Tested-by: Nicolas Capens <nicolascapens@google.com>
Commit-Queue: Nicolas Capens <nicolascapens@google.com>
Kokoro-Result: kokoro <noreply+kokoro@google.com>
diff --git a/src/Device/SetupProcessor.cpp b/src/Device/SetupProcessor.cpp
index e9aa3c8..27fa2db 100644
--- a/src/Device/SetupProcessor.cpp
+++ b/src/Device/SetupProcessor.cpp
@@ -100,6 +100,8 @@
 
 	if(!routine)
 	{
+		ScopedPragma msan(MemorySanitizerInstrumentation, true);
+
 		SetupRoutine *generator = new SetupRoutine(state);
 		generator->generate();
 		routine = generator->getRoutine();