https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68810
--- Comment #6 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
The location of the error does indeed move from line 21 to line 20 upon adding
-m32:
Here's recent trunk (r231296) on x86_64-pc-linux-gnu, running manually (without
the -fno-diagnostics-show-caret from the test harness):
Without -m32:
$ ./xg++ \
-B. \
-c ../../src/gcc/testsuite/g++.dg/cpp0x/constexpr-reinterpret1.C
../../src/gcc/testsuite/g++.dg/cpp0x/constexpr-reinterpret1.C: In static member
function ‘static constexpr B::Inner& B::getInner()’:
../../src/gcc/testsuite/g++.dg/cpp0x/constexpr-reinterpret1.C:21:3: error:
reinterpret_cast from integer to pointer
} // { dg-error "reinterpret_cast" "" }
^
With -m32:
$ ./xg++ \
-B. \
-c ../../src/gcc/testsuite/g++.dg/cpp0x/constexpr-reinterpret1.C \
-m32
../../src/gcc/testsuite/g++.dg/cpp0x/constexpr-reinterpret1.C: In static member
function ‘static constexpr B::Inner& B::getInner()’:
../../src/gcc/testsuite/g++.dg/cpp0x/constexpr-reinterpret1.C:20:14: error:
reinterpret_cast from integer to pointer
return *((Inner *)4);
~^~~~~~~~~~~