diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/config/i386/i386.c | 12 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/pr87793.c | 42 |
4 files changed, 65 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 9df874d..21d9ae7 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2018-11-09 Alexandre Oliva <aoliva@redhat.com> + + PR target/87793 + * config/i386/i386.c (ix86_const_not_ok_for_debug_p): Reject + non-toplevel UNSPEC. + 2018-11-08 Aldy Hernandez <aldyh@redhat.com> * tree-vrp.c (value_range::check): Do not access internals diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index 77dec0f..711bec0c 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -17177,6 +17177,18 @@ ix86_const_not_ok_for_debug_p (rtx x) if (SYMBOL_REF_P (x) && strcmp (XSTR (x, 0), GOT_SYMBOL_NAME) == 0) return true; + /* Reject UNSPECs within expressions. We could accept symbol@gotoff + + literal_constant, but that would hardly come up in practice, + and it's not worth the trouble of having to reject that as an + operand to pretty much anything else. */ + if (UNARY_P (x) + && GET_CODE (XEXP (x, 0)) == UNSPEC) + return true; + if (BINARY_P (x) + && (GET_CODE (XEXP (x, 0)) == UNSPEC + || GET_CODE (XEXP (x, 1)) == UNSPEC)) + return true; + return false; } diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index aa79847..9a7dfc2 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2018-11-09 Alexandre Oliva <aoliva@redhat.com> + + PR target/87793 + * gcc.dg/pr87793.c: New. + 2018-11-09 Prathamesh Kulkarni <prathamesh.kulkarni@linaro.org> * gcc.target/arm/neon-vect-div-1.c: New test. diff --git a/gcc/testsuite/gcc.dg/pr87793.c b/gcc/testsuite/gcc.dg/pr87793.c new file mode 100644 index 0000000..3194313 --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr87793.c @@ -0,0 +1,42 @@ +/* { dg-do compile } */ +/* { dg-options "-fpic -Os -g" } */ + +struct fit_loadable_tbl { + int type; + void (*handler)(int data, int size); +}; + +#define ll_entry_start(_type, _list) \ +({ \ + static char start[0] __attribute__((aligned(4))) \ + __attribute__((unused, section(".u_boot_list_2_"#_list"_1"))); \ + (_type *)&start; \ +}) + +#define ll_entry_end(_type, _list) \ +({ \ + static char end[0] __attribute__((aligned(4))) \ + __attribute__((unused, section(".u_boot_list_2_"#_list"_3"))); \ + (_type *)&end; \ +}) + +#define ll_entry_count(_type, _list) \ + ({ \ + _type *start = ll_entry_start(_type, _list); \ + _type *end = ll_entry_end(_type, _list); \ + unsigned int _ll_result = end - start; \ + _ll_result; \ + }) + +void test(int img_type, int img_data, int img_len) +{ + int i; + const unsigned int count = + ll_entry_count(struct fit_loadable_tbl, fit_loadable); + struct fit_loadable_tbl *fit_loadable_handler = + ll_entry_start(struct fit_loadable_tbl, fit_loadable); + + for (i = 0; i < count; i++, fit_loadable_handler++) + if (fit_loadable_handler->type == img_type) + fit_loadable_handler->handler(img_data, img_len); +} |