diff --git a/llvm/test/CodeGen/Generic/2008-01-25-dag-combine-mul.ll b/llvm/test/CodeGen/Generic/2008-01-25-dag-combine-mul.ll
--- a/llvm/test/CodeGen/Generic/2008-01-25-dag-combine-mul.ll
+++ b/llvm/test/CodeGen/Generic/2008-01-25-dag-combine-mul.ll
@@ -1,6 +1,9 @@
 ; RUN: llc < %s
 ; rdar://5707064
 
+; XCore default subtarget does not support 8-byte alignment on stack.
+; XFAIL: xcore
+
 define i32 @f(i16* %pc) {
 entry:
 	%acc = alloca i64, align 8		; <i64*> [#uses=4]
diff --git a/llvm/test/CodeGen/Generic/inline-asm-mem-clobber.ll b/llvm/test/CodeGen/Generic/inline-asm-mem-clobber.ll
--- a/llvm/test/CodeGen/Generic/inline-asm-mem-clobber.ll
+++ b/llvm/test/CodeGen/Generic/inline-asm-mem-clobber.ll
@@ -1,5 +1,8 @@
 ; RUN: llc -O2 -no-integrated-as < %s | FileCheck %s
 
+; XCore default subtarget does not support 8-byte alignment on stack.
+; XFAIL: xcore
+
 @G = common global i32 0, align 4
 
 define i32 @foo(i8* %p) nounwind uwtable {
diff --git a/llvm/test/DebugInfo/Generic/2010-05-03-OriginDIE.ll b/llvm/test/DebugInfo/Generic/2010-05-03-OriginDIE.ll
--- a/llvm/test/DebugInfo/Generic/2010-05-03-OriginDIE.ll
+++ b/llvm/test/DebugInfo/Generic/2010-05-03-OriginDIE.ll
@@ -2,6 +2,9 @@
 ;RUN: llc < %s -o /dev/null
 ;Radar 7937109
 
+;XCore default subtarget does not support 8-byte alignment on stack.
+;XFAIL: xcore
+
 %struct.anon = type { i64, i32, i32, i32, [1 x i32] }
 %struct.gpm_t = type { i32, i8*, [16 x i8], i32, i64, i64, i64, i64, i64, i64, i32, i16, i16, [8 x %struct.gpmr_t] }
 %struct.gpmr_t = type { [48 x i8], [48 x i8], [16 x i8], i64, i64, i64, i64, i16 }