tests: Removal of @no_wasm_backend, part 1

This change removes the use of this decorator from the other
and sanity test suites.

Some tests simply worked, some make no sense with wasm backend and
a couple are tests we would like revive once day (related to ctor
evaluation and ctor elimiation).

There was one test for which I implemented the feature which was
to ingnore multiple copies of the same .so file on the link line.
This improves the fake shared library support a little and was
a feature of fastcomp.

See: #12335

Author: sbc100

emcc.py

@@ -1204,7 +1204,22 @@ def check(input_file):
         return [f for f in inputs if check(f[1])]
       return inputs
 
+    def filter_out_duplicate_dynamic_libs(inputs):
+      # Filter out duplicat eshared libraries.
+      # See test_core.py:test_redundant_link
+      seen = set(inputs)
+      rtn = []
+      for i in inputs:
+        if get_file_suffix(i[1]) in DYNAMICLIB_ENDINGS and os.path.exists(i[1]):
+          abspath = os.path.abspath(i[1])
+          if abspath in seen:
+            continue
+          seen.add(abspath)
+        rtn.append(i)
+      return rtn
+
     input_files = filter_out_dynamic_libs(input_files)
+    input_files = filter_out_duplicate_dynamic_libs(input_files)
 
     if not input_files and not link_flags:
       exit_with_error('no input files')

src/settings.js

@@ -222,12 +222,6 @@ var ALLOW_TABLE_GROWTH = 0;
 // default, any other value will be used as an override
 var GLOBAL_BASE = -1;
 
-// Warn at compile time about instructions that LLVM tells us are not fully
-// aligned.  This is useful to find places in your code where you might refactor
-// to ensure proper alignment.  This is currently only supported in asm.js, not
-// wasm.
-var WARN_UNALIGNED = 0;
-
 // Whether closure compiling is being run on this output
 var USE_CLOSURE_COMPILER = 0;
 
@@ -1698,4 +1692,5 @@ var LEGACY_SETTINGS = [
   ['RUNNING_JS_OPTS', [0], 'Fastcomp cared about running JS which could alter asm.js validation, but not upstream'],
   ['EXPORT_FUNCTION_TABLES', [0], 'No longer needed'],
   ['BINARYEN_SCRIPTS', [""], 'No longer needed'],
+  ['WARN_UNALIGNED', [0, 1], 'No longer needed'],
 ];

tests/runner.py

@@ -164,6 +164,11 @@ def no_wasm_backend(note=''):
   return unittest.skip(note)
 
 
+def disabled(note=''):
+  assert not callable(note)
+  return unittest.skip(note)
+
+
 def no_windows(note=''):
   assert not callable(note)
   if WINDOWS:

tests/sillyfuncast2_noasm.ll

@@ -1,6 +1,5 @@
 ; ModuleID = 'tests/hello_world.bc'
 target datalayout = "e-p:32:32-i64:64-v128:32:128-n32-S128"
-target triple = "asmjs-unknown-emscripten"
 
 @.str = private unnamed_addr constant [15 x i8] c"hello, world!\0A\00", align 1 ; [#uses=1 type=[15 x i8]*]