Index: llvm/trunk/lib/Target/WebAssembly/known_gcc_test_failures.txt
===================================================================
--- llvm/trunk/lib/Target/WebAssembly/known_gcc_test_failures.txt
+++ llvm/trunk/lib/Target/WebAssembly/known_gcc_test_failures.txt
@@ -21,6 +21,10 @@
 comp-goto-1.c
 980526-1.c
 990208-1.c
+label13.C O0
+label13a.C O0
+label3.C
+pr42462.C O0
 
 # WebAssembly hasn't implemented (will never?) __builtin_return_address
 20010122-1.c
@@ -76,6 +80,52 @@
 920728-1.c
 pr28865.c
 widechar-2.c
+attr-alias-1.C
+attr-alias-2.C
+attr-ifunc-1.C
+attr-ifunc-2.C
+attr-ifunc-3.C
+attr-ifunc-4.C
+complit12.C
+va-arg-pack-1.C
+va-arg-pack-len-1.C
+builtin-line1.C
+builtin-location.C
+devirt-6.C  # bad main signature
+devirt-13.C  # bad main signature
+devirt-14.C  # bad main signature
+devirt-21.C  # bad main signature
+devirt-23.C  # bad main signature
 
 # Untriaged: Assertion failure in WasmObjectWriter::applyRelocations
 20071220-2.c wasm-o,O0
+
+# Untriaged C++ failures
+spec5.C
+addr1.C
+ef_test.C
+friend18.C
+member2.C
+new39.C
+new40.C
+nrv8.C
+offsetof9.C
+opaque-1.C
+pr19650.C
+pr37146-1.C
+pr46149.C
+pr59470.C
+rtti2.C
+self1.C
+thread_local3.C
+thread_local3g.C
+thread_local4.C
+thread_local4g.C
+thread_local5.C
+thread_local5g.C
+type-generic-1.C
+vbase8-10.C
+vbase8-21.C
+vbase8-22.C
+vbase8-4.C
+vector1.C