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| author | Eric Botcazou <ebotcazou@adacore.com> | 2017-02-24 10:35:14 +0000 |
|---|---|---|
| committer | Eric Botcazou <ebotcazou@gcc.gnu.org> | 2017-02-24 10:35:14 +0000 |
| commit | 0b9cdb9a4011886f0166a648f874f880ac9e026a (patch) | |
| tree | 04365f8d042241b4ca4cce48a5150fecfa9db312 /gcc | |
| parent | 59909673d11f6e1a0655c360c96653e9b0a37b84 (diff) | |
| download | gcc-0b9cdb9a4011886f0166a648f874f880ac9e026a.zip gcc-0b9cdb9a4011886f0166a648f874f880ac9e026a.tar.gz gcc-0b9cdb9a4011886f0166a648f874f880ac9e026a.tar.bz2 | |
* gcc-interface/trans.c (return_value_ok_for_nrv_p): Add sanity check.
From-SVN: r245701
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ada/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/ada/gcc-interface/trans.c | 7 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/testsuite/gnat.dg/opt63.adb | 19 |
4 files changed, 34 insertions, 0 deletions
diff --git a/gcc/ada/ChangeLog b/gcc/ada/ChangeLog index c7b1ef0..44e525a 100644 --- a/gcc/ada/ChangeLog +++ b/gcc/ada/ChangeLog @@ -1,5 +1,9 @@ 2017-02-24 Eric Botcazou <ebotcazou@adacore.com> + * gcc-interface/trans.c (return_value_ok_for_nrv_p): Add sanity check. + +2017-02-24 Eric Botcazou <ebotcazou@adacore.com> + * gcc-interface/decl.c: Include demangle.h. (is_cplusplus_method): Return again true for a primitive operation only if it is dispatching. For a subprogram with an interface name, diff --git a/gcc/ada/gcc-interface/trans.c b/gcc/ada/gcc-interface/trans.c index 7cde230..d38a0a9 100644 --- a/gcc/ada/gcc-interface/trans.c +++ b/gcc/ada/gcc-interface/trans.c @@ -3614,9 +3614,16 @@ return_value_ok_for_nrv_p (tree ret_obj, tree ret_val) if (TREE_ADDRESSABLE (ret_val)) return false; + /* For the constrained case, test for overalignment. */ if (ret_obj && DECL_ALIGN (ret_val) > DECL_ALIGN (ret_obj)) return false; + /* For the unconstrained case, test for bogus initialization. */ + if (!ret_obj + && DECL_INITIAL (ret_val) + && TREE_CODE (DECL_INITIAL (ret_val)) == NULL_EXPR) + return false; + return true; } diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index dc2cf4e..9425a0d 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,5 +1,9 @@ 2017-02-24 Eric Botcazou <ebotcazou@adacore.com> + * gnat.dg/opt63.adb: New test. + +2017-02-24 Eric Botcazou <ebotcazou@adacore.com> + * gnat.dg/discr47.adb: New test. 2017-02-24 Richard Biener <rguenther@suse.de> diff --git a/gcc/testsuite/gnat.dg/opt63.adb b/gcc/testsuite/gnat.dg/opt63.adb new file mode 100644 index 0000000..6471be4 --- /dev/null +++ b/gcc/testsuite/gnat.dg/opt63.adb @@ -0,0 +1,19 @@ +-- { dg-do compile } +-- { dg-options "-O -gnatws" } + +procedure Opt63 is + + type T_MOD is mod 2**32; + subtype T_INDEX is T_MOD range 3_000_000_000 .. 4_000_000_000; + type T_ARRAY is array(T_INDEX range <>) of INTEGER; + + function Build_Crash(First : T_INDEX; Length : NATURAL) return T_ARRAY is + R : T_ARRAY(First .. T_Index'Val (T_Index'Pos (First) + Length)) + := (others => -1); -- Crash here + begin + return R; + end; + +begin + null; +end; |