diff options
| author | Jeff Law <law@redhat.com> | 2006-03-24 16:21:27 -0700 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 2006-03-24 16:21:27 -0700 |
| commit | 3ae194cd59da7b8e5a4cc7e5a9e822e3c9c202c5 (patch) | |
| tree | a457495224966ac0267a09cd906d32e128d74d47 /gcc | |
| parent | 58df1c413d4514747ce8478caf0bfdc48711e551 (diff) | |
| download | gcc-3ae194cd59da7b8e5a4cc7e5a9e822e3c9c202c5.zip gcc-3ae194cd59da7b8e5a4cc7e5a9e822e3c9c202c5.tar.gz gcc-3ae194cd59da7b8e5a4cc7e5a9e822e3c9c202c5.tar.bz2 | |
tree-ssa-dom.c (propagate_rhs_into_lhs): Don't call update_stmt directly.
* tree-ssa-dom.c (propagate_rhs_into_lhs): Don't call update_stmt
directly. Call mark_new_vars_to_rename slightly earlier.
* gcc.c-torture/pr26840.c: New test.
From-SVN: r112365
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.c-torture/compile/pr26840.c | 42 | ||||
| -rw-r--r-- | gcc/tree-ssa-dom.c | 10 |
4 files changed, 56 insertions, 5 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index cdb1fdc..51a9ae8 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2006-03-24 Jeff Law <law@redhat.com> + + * tree-ssa-dom.c (propagate_rhs_into_lhs): Don't call update_stmt + directly. Call mark_new_vars_to_rename slightly earlier. + 2006-03-24 Geoffrey Keating <geoffk@apple.com> PR 26793 diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 6857ace..c7daaeb 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,7 @@ +2006-03-24 Jeff Law <law@redhat.com> + + * gcc.c-torture/pr26840.c: New test. + 2006-03-24 Geoffrey Keating <geoffk@apple.com> * g++.old-deja/g++.other/init19.C: New. diff --git a/gcc/testsuite/gcc.c-torture/compile/pr26840.c b/gcc/testsuite/gcc.c-torture/compile/pr26840.c new file mode 100644 index 0000000..8d864a2 --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/compile/pr26840.c @@ -0,0 +1,42 @@ +extern int f1 (void **); +extern void f2 (void *); + +struct s +{ + unsigned char field1; + int field2; +}; + +static inline struct s * +get_globals (void) +{ + struct s * r; + void * rr; + + if (f1 (&rr)) + return 0; + r = rr; + if (! r) + { + extern struct s t; + r = &t; + } + r->field1 = 1; + return r; +} + +void +atexit_common (const void *dso) +{ + struct s *g = get_globals (); + + if (! g) + return; + if (g->field1) + { + g->field2 = 0; + f2 (g); + } + else + f2 (g); +} diff --git a/gcc/tree-ssa-dom.c b/gcc/tree-ssa-dom.c index 9df59e9..db9f873 100644 --- a/gcc/tree-ssa-dom.c +++ b/gcc/tree-ssa-dom.c @@ -2160,7 +2160,11 @@ propagate_rhs_into_lhs (tree stmt, tree lhs, tree rhs, bitmap interesting_names) collapse control statements. */ propagate_value (use_p, rhs); fold_stmt_inplace (use_stmt); - update_stmt (use_stmt); + + /* Sometimes propagation can expose new operands to the + renamer. Note this will call update_stmt at the + appropriate time. */ + mark_new_vars_to_rename (use_stmt); /* Dump details. */ if (dump_file && (dump_flags & TDF_DETAILS)) @@ -2170,10 +2174,6 @@ propagate_rhs_into_lhs (tree stmt, tree lhs, tree rhs, bitmap interesting_names) fprintf (dump_file, "\n"); } - /* Sometimes propagation can expose new operands to the - renamer. */ - mark_new_vars_to_rename (use_stmt); - /* If we replaced a variable index with a constant, then we would need to update the invariant flag for ADDR_EXPRs. */ if (TREE_CODE (use_stmt) == MODIFY_EXPR |