diff --git a/gdb/testsuite/gdb.base/vla-optimized-out.exp b/gdb/testsuite/gdb.base/vla-optimized-out.exp
index b16142ee329..b897ea8124c 100644
--- a/gdb/testsuite/gdb.base/vla-optimized-out.exp
+++ b/gdb/testsuite/gdb.base/vla-optimized-out.exp
@@ -67,12 +67,23 @@ proc vla_optimized_out {exe_suffix options} {
 	"print out of range element of vla (0xffffffff)"
 }
 
-foreach {test_prefix options} \
-    { "o1" {{debug optimize=-O1 additional_flags=-DNOCLONE} "6"} \
-      "o3" {{debug optimize=-O3} "<optimized out>|6"} \
-      "o3_strict" {{debug optimize=-O3 \
-			additional_flags=-gstrict-dwarf} \
-		       "<optimized out>|6"}} {
+set o1_sizeof_result "6"
+if { [istarget powerpc*-*-*] && [gcc_major_version] != -1 } {
+    set o1_sizeof_result "<optimized out>|6"
+}
+
+set test_matrix {}
+lappend test_matrix \
+    "o1" \
+    [list {debug optimize=-O1 additional_flags=-DNOCLONE} $o1_sizeof_result]
+lappend test_matrix \
+    "o3" \
+    {{debug optimize=-O3} "<optimized out>|6"}
+lappend test_matrix \
+    "o3_strict" \
+    {{debug optimize=-O3 additional_flags=-gstrict-dwarf} "<optimized out>|6"}
+
+foreach {test_prefix options} $test_matrix {
     with_test_prefix $test_prefix {
 	vla_optimized_out $test_prefix $options
     }