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| author | Jakub Jelinek <jakub@gcc.gnu.org> | 2009-01-24 22:36:09 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2009-01-24 22:36:09 +0100 |
| commit | 849421a3e44820ac554b6b1b625709fc0239f357 (patch) | |
| tree | 8aa0cd10ba1655e3f28c1d19cd88b6abf511e564 | |
| parent | 82f7042142a89ec50f2b3a608a675defb9ac4675 (diff) | |
| download | gcc-849421a3e44820ac554b6b1b625709fc0239f357.zip gcc-849421a3e44820ac554b6b1b625709fc0239f357.tar.gz gcc-849421a3e44820ac554b6b1b625709fc0239f357.tar.bz2 | |
re PR c/38957 (return of local variable pointer)
PR c/38957
* c-typeck.c (c_finish_return): Handle POINTER_PLUS_EXPR the same way
as PLUS_EXPR.
* gcc.dg/pr38957.c: New test.
From-SVN: r143654
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/c-typeck.c | 4 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 9 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/pr38957.c | 16 |
4 files changed, 32 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 0c957db..ecf9e46 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2009-01-24 Jakub Jelinek <jakub@redhat.com> + + PR c/38957 + * c-typeck.c (c_finish_return): Handle POINTER_PLUS_EXPR the same way + as PLUS_EXPR. + 2009-01-24 Julian Brown <julian@codesourcery.com> * config/arm/t-linux-eabi (LIB2FUNCS_STATIC_EXTRA): Add diff --git a/gcc/c-typeck.c b/gcc/c-typeck.c index 35c8d23..4b9b2b3 100644 --- a/gcc/c-typeck.c +++ b/gcc/c-typeck.c @@ -7226,8 +7226,10 @@ c_finish_return (tree retval) { switch (TREE_CODE (inner)) { - CASE_CONVERT: case NON_LVALUE_EXPR: + CASE_CONVERT: + case NON_LVALUE_EXPR: case PLUS_EXPR: + case POINTER_PLUS_EXPR: inner = TREE_OPERAND (inner, 0); continue; diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 7e40d4e..5425b02 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,8 +1,13 @@ -2009-01-24 David Billinghurst (billingd@gcc.gnu.org) +2009-01-24 Jakub Jelinek <jakub@redhat.com> + + PR c/38957 + * gcc.dg/pr38957.c: New test. + +2009-01-24 David Billinghurst <billingd@gcc.gnu.org> PR fortran/38955 * gfortran.dg/array_constructor_24.f: Allow tolerance when - comparing floats + comparing floats. 2009-01-24 Sebastian Pop <sebastian.pop@amd.com> diff --git a/gcc/testsuite/gcc.dg/pr38957.c b/gcc/testsuite/gcc.dg/pr38957.c new file mode 100644 index 0000000..f94cd76 --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr38957.c @@ -0,0 +1,16 @@ +/* PR c/38957 */ +/* { dg-do compile } */ + +char * +foo (void) +{ + char a[2]; + return a+1; /* { dg-warning "returns address of local variable" } */ +} + +char * +bar (void) +{ + char a[2]; + return a; /* { dg-warning "returns address of local variable" } */ +} |