patches/gcc/3.3.3/empty6.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sat Jul 28 21:34:41 2007 +0000 (2007-07-28)
changeset 301 2be7232a73ac
permissions -rw-r--r--
Bump version to 0.2.2.
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From 3.4 branch.  Fixes test failure
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FAIL: g++.dg/abi/empty6.C  (test for warnings, line 6)
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===================================================================
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RCS file: /cvs/gcc/gcc/gcc/testsuite/g++.dg/abi/empty6.C,v
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retrieving revision 1.1
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retrieving revision 1.2
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diff -u -r1.1 -r1.2
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--- gcc/gcc/testsuite/g++.dg/abi/empty6.C	2002/09/25 19:07:35	1.1
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+++ gcc/gcc/testsuite/g++.dg/abi/empty6.C	2003/06/03 19:10:09	1.2
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@@ -5,4 +5,9 @@
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 struct B {
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   A a; // { dg-warning "empty" }
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   virtual void f () {}
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-};
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+} __attribute__((aligned(8)));
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+/* The preceding attribute is necessary on targets with
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+   BIGGEST_ALIGNMENT <= 32 to trigger the warning, as otherwise a 32 bit
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+   offset is split into DECL_FIELD_OFFSET 4 and DECL_FIELD_BIT_OFFSET 0,
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+   and then there is no discrepancy between DECL_FIELD_OFFSET and
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+   byte_position to warn about.  */