Remove the IA-64 backend.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76920 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/FrontendC/Atomics.c b/test/FrontendC/Atomics.c
index 7e25ebb..2aed55c 100644
--- a/test/FrontendC/Atomics.c
+++ b/test/FrontendC/Atomics.c
@@ -9,7 +9,7 @@
 // Currently this is implemented only for Alpha, X86, PowerPC.
 // Add your target here if it doesn't work.
 // PPC32 does not translate the long long variants, so fails this test.
-// XFAIL: sparc|arm|ia64|powerpc
+// XFAIL: sparc|arm|powerpc
 
 signed char sc;
 unsigned char uc;