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This is GCC Bugzilla Version 2.20+
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class A {}; class B; class B:public A {}; class C { typedef void (A::*ftype)(); C(B* a){a->*ftype();} };
prtgddbgfd.cc: In constructor `C::C(B*)': prtgddbgfd.cc:9: internal compiler error: in gimplify_expr, at gimplify.c:3471 Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://gcc.gnu.org/bugs.html> for instructions. Been failing since at least 3.5-tree-ssa 20040512.
Confirmed. Stripping away unneccesary classes I get the following testcase: ======================================== struct A {}; typedef void (A::*ftype)(); void foo(A a) { a.*ftype(); } ======================================== Slightly modifing the last line, I get a testcase that already crashes with gcc 3.4.0: ======================================== struct A {}; typedef void (A::*ftype)(); void foo() { A().*ftype(); } ======================================== PR15696.cc: In function `void foo()': PR15696.cc:5: internal compiler error: in cxx_expand_expr, at cp/expr.c:101 Please submit a full bug report, [etc.]
The first case in Comment #2 works in GCC 3.4.1. Is the second case a regression?
Yes it used to work in 3.3.3.
Working on a fix.
This code is invalid because [expr.mptr.operator] requires that .* expressions naming a non-static member be used as part of a function call. Still, we should not ICE.
Subject: Bug 15696 CVSROOT: /cvs/gcc Module name: gcc Branch: gcc-3_4-branch Changes by: mmitchel@gcc.gnu.org 2004-05-31 21:04:15 Modified files: gcc/testsuite : ChangeLog gcc/cp : ChangeLog call.c cp-tree.h cvt.c name-lookup.c pt.c tree.c typeck.c gcc/testsuite/g++.dg/ext: packed3.C packed4.C gcc/testsuite/g++.dg/template: friend.C Added files: gcc/testsuite/g++.dg/expr: ptrmem5.C gcc/testsuite/g++.dg/ext: packed6.C gcc/testsuite/g++.dg/template: friend27.C friend28.C gcc/testsuite/g++.dg/warn: Wreturn-1.C Log message: PR c++/15742 * call.c (build_over_call): Set current_function_returns_abnormally even in template functions. PR c++/15696 * cp-tree.h (invalid_nonstatic_memfn_p): New function. * cvt.c (convert_to_void): Use it. * typeck.c (invalid_nonstatic_memfn_p): New function. (decay_conversion): Use it. PR c++/15625 * pt.c (tsubst_decl): Set DECL_FRIEND_CONTEXT for instantiated templates. PR c++/15629 * name-lookup.c (arg_assoc_class): Do not find template specializations. PR c++/15209 * tree.c (lvalue_p_1): Only consider the right-hand side of "." expressions when determining whether or not an express is packed. PR c++/15742 * g++.dg/warn/Wreturn-1.C: New test. PR c++/15696 * g++.dg/expr/ptrmem5.C: New test. PR c++/15625 * g++.dg/template/friend27.C: New test. PR c++/15629 * g++.dg/template/friend28.C: New test. * g++.dg/template/friend.C: Do not depend on <iostream>. Add error message. PR c++/15209 * g++.dg/ext/packed3.C: Remove bogus error. * g++.dg/ext/packed4.C: Remove bogus check. * g++.dg/ext/packed6.C: New test. Patches: http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.3389.2.187&r2=1.3389.2.188 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.3892.2.109&r2=1.3892.2.110 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/call.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.452.2.16&r2=1.452.2.17 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/cp-tree.h.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.946.4.12&r2=1.946.4.13 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/cvt.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.151.4.1&r2=1.151.4.2 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/name-lookup.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.34.2.13&r2=1.34.2.14 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/pt.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.816.2.26&r2=1.816.2.27 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/tree.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.360.4.5&r2=1.360.4.6 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/typeck.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.519.2.18&r2=1.519.2.19 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/expr/ptrmem5.C.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=NONE&r2=1.1.2.1 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/ext/packed6.C.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=NONE&r2=1.1.2.1 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/ext/packed3.C.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.1&r2=1.1.24.1 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/ext/packed4.C.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.1&r2=1.1.24.1 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/template/friend27.C.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=NONE&r2=1.1.2.1 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/template/friend28.C.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=NONE&r2=1.1.2.1 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/template/friend.C.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.5&r2=1.5.56.1 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/warn/Wreturn-1.C.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=NONE&r2=1.1.2.1
Subject: Bug 15696 CVSROOT: /cvs/gcc Module name: gcc Changes by: mmitchel@gcc.gnu.org 2004-05-31 21:24:31 Modified files: gcc/cp : call.c cp-tree.h cvt.c name-lookup.c pt.c tree.c typeck.c gcc/testsuite/g++.dg/ext: packed3.C packed4.C gcc/testsuite/g++.dg/template: friend.C Added files: gcc/testsuite/g++.dg/expr: ptrmem5.C gcc/testsuite/g++.dg/ext: packed6.C gcc/testsuite/g++.dg/template: friend27.C friend28.C gcc/testsuite/g++.dg/warn: Wreturn-1.C Log message: PR c++/15742 * call.c (build_over_call): Set current_function_returns_abnormally even in template functions. PR c++/15696 * cp-tree.h (invalid_nonstatic_memfn_p): New function. * cvt.c (convert_to_void): Use it. * typeck.c (invalid_nonstatic_memfn_p): New function. (decay_conversion): Use it. PR c++/15625 * pt.c (tsubst_decl): Set DECL_FRIEND_CONTEXT for instantiated templates. PR c++/15629 * name-lookup.c (arg_assoc_class): Do not find template specializations. PR c++/15209 * tree.c (lvalue_p_1): Only consider the right-hand side of "." expressions when determining whether or not an express is packed. PR c++/15742 * g++.dg/warn/Wreturn-1.C: New test. PR c++/15696 * g++.dg/expr/ptrmem5.C: New test. PR c++/15625 * g++.dg/template/friend27.C: New test. PR c++/15629 * g++.dg/template/friend28.C: New test. * g++.dg/template/friend.C: Do not depend on <iostream>. Add error message. PR c++/15209 * g++.dg/ext/packed3.C: Remove bogus error. * g++.dg/ext/packed4.C: Remove bogus check. * g++.dg/ext/packed6.C: New test. Patches: http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/call.c.diff?cvsroot=gcc&r1=1.476&r2=1.477 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/cp-tree.h.diff?cvsroot=gcc&r1=1.969&r2=1.970 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/cvt.c.diff?cvsroot=gcc&r1=1.156&r2=1.157 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/name-lookup.c.diff?cvsroot=gcc&r1=1.56&r2=1.57 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/pt.c.diff?cvsroot=gcc&r1=1.856&r2=1.857 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/tree.c.diff?cvsroot=gcc&r1=1.374&r2=1.375 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/typeck.c.diff?cvsroot=gcc&r1=1.547&r2=1.548 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/expr/ptrmem5.C.diff?cvsroot=gcc&r1=1.1&r2=1.2 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/ext/packed6.C.diff?cvsroot=gcc&r1=1.1&r2=1.2 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/ext/packed3.C.diff?cvsroot=gcc&r1=1.1&r2=1.2 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/ext/packed4.C.diff?cvsroot=gcc&r1=1.1&r2=1.2 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/template/friend27.C.diff?cvsroot=gcc&r1=1.1&r2=1.2 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/template/friend28.C.diff?cvsroot=gcc&r1=1.1&r2=1.2 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/template/friend.C.diff?cvsroot=gcc&r1=1.5&r2=1.6 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/warn/Wreturn-1.C.diff?cvsroot=gcc&r1=1.1&r2=1.2
Fixed in GCC 3.4.1.