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| author | Richard Guenther <rguenther@suse.de> | 2009-07-15 09:25:34 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2009-07-15 09:25:34 +0000 |
| commit | c9b2f286db776b5cdf5e3c7cf3301a8d555f64c1 (patch) | |
| tree | 99fb493292063f503e5e15e9f5a7b7019d89a89f | |
| parent | 31d29c406122cbefe9ee1f249c5a6f06de8cde09 (diff) | |
| download | gcc-c9b2f286db776b5cdf5e3c7cf3301a8d555f64c1.zip gcc-c9b2f286db776b5cdf5e3c7cf3301a8d555f64c1.tar.gz gcc-c9b2f286db776b5cdf5e3c7cf3301a8d555f64c1.tar.bz2 | |
re PR bootstrap/40753 (ICE in refs_may_alias_p_1 for libffi/src/powerpc/ffi.c)
2009-07-15 Richard Guenther <rguenther@suse.de>
PR middle-end/40753
* alias.c (ao_ref_from_mem): Reject FUNCTION_DECL and LABEL_DECL
bases.
* gcc.c-torture/compile/pr40753.c: New testcase.
From-SVN: r149664
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/alias.c | 5 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.c-torture/compile/pr40753.c | 20 |
4 files changed, 36 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index d160c8d..47ac043 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2009-07-15 Richard Guenther <rguenther@suse.de> + + PR middle-end/40753 + * alias.c (ao_ref_from_mem): Reject FUNCTION_DECL and LABEL_DECL + bases. + 2009-07-15 Maxim Kuvyrkov <maxim@codesourcery.com> * config/m68k/linux-unwind.h (m68k_fallback_frame_state): Update to diff --git a/gcc/alias.c b/gcc/alias.c index e9cc2d8..fc259b8 100644 --- a/gcc/alias.c +++ b/gcc/alias.c @@ -279,6 +279,11 @@ ao_ref_from_mem (ao_ref *ref, const_rtx mem) && TREE_CODE (TREE_OPERAND (base, 0)) != SSA_NAME) return false; + /* The tree oracle doesn't like to have these. */ + if (TREE_CODE (base) == FUNCTION_DECL + || TREE_CODE (base) == LABEL_DECL) + return false; + /* If this is a reference based on a partitioned decl replace the base with an INDIRECT_REF of the pointer representative we created during stack slot partitioning. */ diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 4dc0801..e58a25b 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2009-07-15 Richard Guenther <rguenther@suse.de> + + PR middle-end/40753 + * gcc.c-torture/compile/pr40753.c: New testcase. + 2009-07-15 Janus Weil <janus@gcc.gnu.org> PR fortran/40743 diff --git a/gcc/testsuite/gcc.c-torture/compile/pr40753.c b/gcc/testsuite/gcc.c-torture/compile/pr40753.c new file mode 100644 index 0000000..507303d --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/compile/pr40753.c @@ -0,0 +1,20 @@ +typedef struct { + unsigned nargs; +} ffi_cif; +typedef struct { + char tramp[24]; + ffi_cif *cif; +} ffi_closure; +extern void *memcpy (void *, const void *, __SIZE_TYPE__); +extern void ffi_closure_LINUX64 (void); + +int +ffi_prep_closure_loc (ffi_closure *closure, ffi_cif *cif) +{ + void **tramp = (void **) &closure->tramp[0]; + + memcpy (tramp, (char *) ffi_closure_LINUX64, 16); + closure->cif = cif; + + return 0; +} |