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| author | Richard Guenther <rguenther@suse.de> | 2011-03-17 13:19:01 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2011-03-17 13:19:01 +0000 |
| commit | f8bce518af5367b22e543127f49e8fd970c3fc5e (patch) | |
| tree | 36741b7951efb09388d608d6af36baf18b06a2d1 /gcc | |
| parent | bb1f792960e1dd896529286d2d2302491959d591 (diff) | |
| download | gcc-f8bce518af5367b22e543127f49e8fd970c3fc5e.zip gcc-f8bce518af5367b22e543127f49e8fd970c3fc5e.tar.gz gcc-f8bce518af5367b22e543127f49e8fd970c3fc5e.tar.bz2 | |
re PR tree-optimization/48165 (gcc-4.6: internal compiler error: in build2_stat)
2011-03-17 Richard Guenther <rguenther@suse.de>
PR middle-end/48165
* tree-object-size.c (compute_object_offset): Properly return
the offset operand of MEM_REFs as sizetype.
* g++.dg/torture/pr48165.C: New testcase.
From-SVN: r171092
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/g++.dg/torture/pr48165.C | 38 | ||||
| -rw-r--r-- | gcc/tree-object-size.c | 2 |
4 files changed, 50 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index fce8c0a..cfb20ed 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2011-03-17 Richard Guenther <rguenther@suse.de> + + PR middle-end/48165 + * tree-object-size.c (compute_object_offset): Properly return + the offset operand of MEM_REFs as sizetype. + 2011-03-17 Jakub Jelinek <jakub@redhat.com> PR rtl-optimization/48141 diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index b76cd47..a7d8749 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2011-03-17 Richard Guenther <rguenther@suse.de> + + PR middle-end/48165 + * g++.dg/torture/pr48165.C: New testcase. + 2011-03-17 Jakub Jelinek <jakub@redhat.com> PR rtl-optimization/48141 diff --git a/gcc/testsuite/g++.dg/torture/pr48165.C b/gcc/testsuite/g++.dg/torture/pr48165.C new file mode 100644 index 0000000..a42893f --- /dev/null +++ b/gcc/testsuite/g++.dg/torture/pr48165.C @@ -0,0 +1,38 @@ +/* { dg-do compile } */ + +typedef __SIZE_TYPE__ size_t; + +extern "C" { + extern __inline __attribute__ ((__always_inline__)) + __attribute__ ((__gnu_inline__, __artificial__)) void * + memcpy (void *__restrict __dest, __const void *__restrict __src, + size_t __len) throw () + { + return __builtin___memcpy_chk (__dest, __src, __len, + __builtin_object_size (__dest, 0)); + } +} + +typedef char TCODE[20]; +typedef TCODE TCODE_ARRAY[5]; +typedef struct PARAM +{ + TCODE_ARRAY tcode; +} PARAM; + +static void foo (void* p) +{ + char buffer[4+sizeof(PARAM)]; + PARAM *param = (PARAM *)(buffer + 4); + int i; + + for (i=0; i < 5; i++) + { + memcpy( param->tcode[i], p, 20 ); + } +} + +void bar (void* p) +{ + foo (p); +} diff --git a/gcc/tree-object-size.c b/gcc/tree-object-size.c index 23abcfe..6a74d19 100644 --- a/gcc/tree-object-size.c +++ b/gcc/tree-object-size.c @@ -143,7 +143,7 @@ compute_object_offset (const_tree expr, const_tree var) case MEM_REF: gcc_assert (TREE_CODE (TREE_OPERAND (expr, 0)) == ADDR_EXPR); - return TREE_OPERAND (expr, 1); + return double_int_to_tree (sizetype, mem_ref_offset (expr)); default: return error_mark_node; |