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| author | Jakub Jelinek <jakub@redhat.com> | 2018-01-17 22:08:36 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2018-01-17 22:08:36 +0100 |
| commit | 78a5fce0915a9077f814d05b05277c926032cffa (patch) | |
| tree | dd9d5226029d277eaf44525ba6843b889072f2e2 | |
| parent | a99670f923dec07fe1b2813419f33e0cd18e091e (diff) | |
| download | gcc-78a5fce0915a9077f814d05b05277c926032cffa.zip gcc-78a5fce0915a9077f814d05b05277c926032cffa.tar.gz gcc-78a5fce0915a9077f814d05b05277c926032cffa.tar.bz2 | |
re PR c++/83897 (Useless __builtin_unreachable () emitted by the C++ FE)
PR c++/83897
* cp-gimplify.c (cp_maybe_instrument_return): Handle
CLEANUP_POINT_EXPR.
* g++.dg/cpp0x/pr83897.C: New test.
From-SVN: r256819
| -rw-r--r-- | gcc/cp/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/cp/cp-gimplify.c | 1 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/g++.dg/cpp0x/pr83897.C | 13 |
4 files changed, 25 insertions, 0 deletions
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog index 17b4192..0d73c5b 100644 --- a/gcc/cp/ChangeLog +++ b/gcc/cp/ChangeLog @@ -1,3 +1,9 @@ +2018-01-17 Jakub Jelinek <jakub@redhat.com> + + PR c++/83897 + * cp-gimplify.c (cp_maybe_instrument_return): Handle + CLEANUP_POINT_EXPR. + 2018-01-17 Paolo Carlini <paolo.carlini@oracle.com> PR c++/81054 diff --git a/gcc/cp/cp-gimplify.c b/gcc/cp/cp-gimplify.c index e97247c..2185925 100644 --- a/gcc/cp/cp-gimplify.c +++ b/gcc/cp/cp-gimplify.c @@ -1581,6 +1581,7 @@ cp_maybe_instrument_return (tree fndecl) t = BIND_EXPR_BODY (t); continue; case TRY_FINALLY_EXPR: + case CLEANUP_POINT_EXPR: t = TREE_OPERAND (t, 0); continue; case STATEMENT_LIST: diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index fb0e919..96495d9 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2018-01-17 Jakub Jelinek <jakub@redhat.com> + + PR c++/83897 + * g++.dg/cpp0x/pr83897.C: New test. + 2018-01-17 Jan Hubicka <hubicka@ucw.cz> PR ipa/83051 diff --git a/gcc/testsuite/g++.dg/cpp0x/pr83897.C b/gcc/testsuite/g++.dg/cpp0x/pr83897.C new file mode 100644 index 0000000..26a37d1 --- /dev/null +++ b/gcc/testsuite/g++.dg/cpp0x/pr83897.C @@ -0,0 +1,13 @@ +// PR c++/83897 +// { dg-do compile { target c++11 } } +// { dg-options "-O2 -fdump-tree-gimple" } +// { dg-final { scan-tree-dump-not "__builtin_unreachable" "gimple" } } + +struct A {}; +struct B { int a; int b = 5; }; + +A +bar (B) +{ + return {}; +} |