diff options
| author | Yvan Roux <yvan.roux@linaro.org> | 2016-11-03 13:14:39 +0100 |
|---|---|---|
| committer | Yvan Roux <yvan.roux@linaro.org> | 2016-11-10 15:45:18 +0100 |
| commit | ed3689248a072f10638651fc540f8f3d52b9d3c0 (patch) | |
| tree | dae928d42952604e85f4820f4499b172d53319be | |
| parent | 89c329d104d5f054a5c865205b7667e74f896527 (diff) | |
Fix BZ 2575linaro-local/yvan-2575-fix
Change-Id: Ie8f19fcbb851bec5c2dbcab309b412a090e21417
| -rw-r--r-- | gcc/testsuite/g++.dg/opt/pr78201.C | 11 | ||||
| -rw-r--r-- | gcc/varasm.c | 9 |
2 files changed, 16 insertions, 4 deletions
diff --git a/gcc/testsuite/g++.dg/opt/pr78201.C b/gcc/testsuite/g++.dg/opt/pr78201.C new file mode 100644 index 00000000000..a1184d0edfe --- /dev/null +++ b/gcc/testsuite/g++.dg/opt/pr78201.C @@ -0,0 +1,11 @@ +// PR middle-end/78201 +// { dg-do compile } +// { dg-options "-O2" } + +struct B { long d (); } *c; +long e; + +void f() { + char a[e] = ""; + c && c->d(); +} diff --git a/gcc/varasm.c b/gcc/varasm.c index 6a7ffc22e22..1c711b1d8c8 100644 --- a/gcc/varasm.c +++ b/gcc/varasm.c @@ -6804,11 +6804,12 @@ default_use_anchors_for_symbol_p (const_rtx symbol) return false; /* Don't use section anchors for decls that won't fit inside a single - anchor range to reduce the amount of instructions require to refer + anchor range to reduce the amount of instructions required to refer to the entire declaration. */ - if (decl && DECL_SIZE (decl) - && tree_to_shwi (DECL_SIZE (decl)) - >= (targetm.max_anchor_offset * BITS_PER_UNIT)) + if (DECL_SIZE_UNIT (decl) == NULL_TREE + || !tree_fits_uhwi_p (DECL_SIZE_UNIT (decl)) + || (tree_to_uhwi (DECL_SIZE_UNIT (decl)) + >= (unsigned HOST_WIDE_INT) targetm.max_anchor_offset)) return false; } |