diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index e058566582d..6d99e71c68d 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2012-10-04  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc.dg/lto/20120723_0.c: Skip on SPARC 32-bit.
+
 2012-10-04  Florian Weimer  <fweimer@redhat.com>
 
 	* c-c++-common/cpp/diagnostic-pragma-1.c: New testcase.
diff --git a/gcc/testsuite/gcc.dg/lto/20120723_0.c b/gcc/testsuite/gcc.dg/lto/20120723_0.c
index ea08a0067da..78cfdf77c5b 100644
--- a/gcc/testsuite/gcc.dg/lto/20120723_0.c
+++ b/gcc/testsuite/gcc.dg/lto/20120723_0.c
@@ -1,7 +1,9 @@
 /* Make sure that by reference and by value aggregate jump functions do not get
-   mixed up.  */
+   mixed up.
+   ??? This testcase is invalid C and can only pass on specific platforms.  */
 /* { dg-lto-do run } */
-/* { dg-lto-options {{-O3 -fno-early-inlining -flto}} } */
+/* { dg-skip-if "" { { sparc*-*-* } && ilp32 } { "*" } { "" } } */
+/* { dg-lto-options { {-O3 -fno-early-inlining -flto}} } */
 
 extern void abort (void);