diff options
| author | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2018-03-08 06:56:59 +0000 |
|---|---|---|
| committer | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2018-03-08 06:56:59 +0000 |
| commit | 8b84a61218a2dd83111889846d74005d8e727954 (patch) | |
| tree | ad47591876053c5ce660972384957cf9d2935ea7 | |
| parent | db4f7f88497d7a823854f87f6650bdc12b584372 (diff) | |
| download | gcc-8b84a61218a2dd83111889846d74005d8e727954.tar.gz | |
PR tree-optimization/84739
* tree-tailcall.c (find_tail_calls): Check call arguments against
DECL_ARGUMENTS (current_function_decl) rather than
DECL_ARGUMENTS (func) when checking for tail recursion.
* gcc.dg/pr84739.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@258351 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/pr84739.c | 26 | ||||
| -rw-r--r-- | gcc/tree-tailcall.c | 2 |
4 files changed, 39 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 9c7dd744f02..c96e895c3d8 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2018-03-08 Jakub Jelinek <jakub@redhat.com> + + PR tree-optimization/84739 + * tree-tailcall.c (find_tail_calls): Check call arguments against + DECL_ARGUMENTS (current_function_decl) rather than + DECL_ARGUMENTS (func) when checking for tail recursion. + 2018-03-07 Jakub Jelinek <jakub@redhat.com> * doc/contrib.texi: Add entries for Martin Liska, David Malcolm, diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index a6f89e15dcf..3f0ac96471a 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2018-03-08 Jakub Jelinek <jakub@redhat.com> + + PR tree-optimization/84739 + * gcc.dg/pr84739.c: New test. + 2018-03-07 Martin Sebor <msebor@redhat.com> PR tree-optimization/83519 diff --git a/gcc/testsuite/gcc.dg/pr84739.c b/gcc/testsuite/gcc.dg/pr84739.c new file mode 100644 index 00000000000..6903425c5c4 --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr84739.c @@ -0,0 +1,26 @@ +/* PR tree-optimization/84739 */ +/* { dg-do compile } */ +/* { dg-require-weak "" } */ +/* { dg-options "-O2" } */ + +static void baz (void) __attribute__((weakref("bar"))); /* { dg-warning "alias between functions of incompatible types" } */ + +int +foo (int x, int y) +{ + if (x) + y = 0; + if (y) + goto lab; + y = 0; +lab: + return y; +} + +void +bar (int x, int y) /* { dg-message "aliased declaration here" } */ +{ + y = foo (x, y); + if (y != 0) + baz (); +} diff --git a/gcc/tree-tailcall.c b/gcc/tree-tailcall.c index 4e309cd9b41..9ebed9de524 100644 --- a/gcc/tree-tailcall.c +++ b/gcc/tree-tailcall.c @@ -481,7 +481,7 @@ find_tail_calls (basic_block bb, struct tailcall **ret) { tree arg; - for (param = DECL_ARGUMENTS (func), idx = 0; + for (param = DECL_ARGUMENTS (current_function_decl), idx = 0; param && idx < gimple_call_num_args (call); param = DECL_CHAIN (param), idx ++) { |