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-rw-r--r--gcc/testsuite/g++.dg/abi/vbase10.C4
1 files changed, 3 insertions, 1 deletions
diff --git a/gcc/testsuite/g++.dg/abi/vbase10.C b/gcc/testsuite/g++.dg/abi/vbase10.C
index a0d113ade79..b6e7f88fcaa 100644
--- a/gcc/testsuite/g++.dg/abi/vbase10.C
+++ b/gcc/testsuite/g++.dg/abi/vbase10.C
@@ -1,5 +1,7 @@
// { dg-do compile }
-// { dg-options "-Wabi -fabi-version=1" }
+// -fpack-struct is necessary because the code below assumes the initial
+// packing is larger than 1, which cannot ge guaranteed for all targets.
+// { dg-options "-Wabi -fabi-version=1 -fpack-struct=8" }
// On ARM processors, the alignment of B will be 4 even though it
// contains only a single "char". That would avoids the situation
// that the warning below is designed to catch. We therefore
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