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| author | Marek Polacek <polacek@redhat.com> | 2016-01-27 14:26:38 +0000 |
|---|---|---|
| committer | Marek Polacek <mpolacek@gcc.gnu.org> | 2016-01-27 14:26:38 +0000 |
| commit | 95e3030cfa307191f87da77bb98b101f2ed88bec (patch) | |
| tree | bfe137203da0ccf55cba3f65e7c46f06a5d8bb62 /gcc/testsuite | |
| parent | 5128d392c0c6509fac352b62cbb3cecf511e7b2a (diff) | |
| download | gcc-95e3030cfa307191f87da77bb98b101f2ed88bec.zip gcc-95e3030cfa307191f87da77bb98b101f2ed88bec.tar.gz gcc-95e3030cfa307191f87da77bb98b101f2ed88bec.tar.bz2 | |
re PR c++/69496 ([C++ 14] ICE on VLA in constexpr function)
PR c++/69496
* constexpr.c (cxx_eval_array_reference): Evaluate the number of
elements of the array.
* g++.dg/ext/constexpr-vla1.C: New test.
From-SVN: r232875
Diffstat (limited to 'gcc/testsuite')
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/g++.dg/ext/constexpr-vla1.C | 30 |
2 files changed, 35 insertions, 0 deletions
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 8559a78..2ff4f7d 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2016-01-27 Marek Polacek <polacek@redhat.com> + + PR c++/69496 + * g++.dg/ext/constexpr-vla1.C: New test. + 2016-01-20 Christian Bruel <christian.bruel@st.com> PR target/69245 diff --git a/gcc/testsuite/g++.dg/ext/constexpr-vla1.C b/gcc/testsuite/g++.dg/ext/constexpr-vla1.C new file mode 100644 index 0000000..a5615bb --- /dev/null +++ b/gcc/testsuite/g++.dg/ext/constexpr-vla1.C @@ -0,0 +1,30 @@ +// PR c++/69496 +// { dg-do compile { target c++14 } } + +constexpr int +fn_ok (int n) +{ + __extension__ int a[n] = { }; + int z = 0; + + for (unsigned i = 0; i < sizeof (a) / sizeof (int); ++i) + z += a[i]; + + return z; +} + + +constexpr int +fn_not_ok (int n) +{ + __extension__ int a[n] = { }; + int z = 0; + + for (unsigned i = 0; i < sizeof (a); ++i) + z += a[i]; + + return z; +} + +constexpr int n1 = fn_ok (3); +constexpr int n2 = fn_not_ok (3); // { dg-error "array subscript out of bound" } |