diff options
| author | Richard Guenther <rguenther@suse.de> | 2010-09-18 11:38:25 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2010-09-18 11:38:25 +0000 |
| commit | a9db10d4aa286aa482d3305e71a3b3a14ae4360d (patch) | |
| tree | 9ab1c7cb41385ab68e81963d8e7e89884da2e64a /gcc | |
| parent | 5d3b14bd9ac79db3f2b957752b41bd0641f49829 (diff) | |
| download | gcc-a9db10d4aa286aa482d3305e71a3b3a14ae4360d.zip gcc-a9db10d4aa286aa482d3305e71a3b3a14ae4360d.tar.gz gcc-a9db10d4aa286aa482d3305e71a3b3a14ae4360d.tar.bz2 | |
re PR tree-optimization/45709 (internal compiler error: in add_phi_arg, at tree-phinodes.c:395)
2010-09-18 Richard Guenther <rguenther@suse.de>
PR tree-optimization/45709
* tree-inline.c (copy_phis_for_bb): Fixup new_edge when
we splitted it.
* g++.dg/torture/pr45709.C: New testcase.
From-SVN: r164390
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/testsuite/g++.dg/torture/pr45709.C | 19 | ||||
| -rw-r--r-- | gcc/tree-inline.c | 5 |
3 files changed, 29 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 3e51ca8..9b0679e 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2010-09-18 Richard Guenther <rguenther@suse.de> + + PR tree-optimization/45709 + * tree-inline.c (copy_phis_for_bb): Fixup new_edge when + we splitted it. + 2010-09-17 Sebastian Pop <sebastian.pop@amd.com> * graphite-dependences.c (dot_deps): Add DEBUG_FUNCTION. diff --git a/gcc/testsuite/g++.dg/torture/pr45709.C b/gcc/testsuite/g++.dg/torture/pr45709.C new file mode 100644 index 0000000..1584ec7 --- /dev/null +++ b/gcc/testsuite/g++.dg/torture/pr45709.C @@ -0,0 +1,19 @@ +// { dg-do compile } + +struct Region { + int storage[4]; + int count; +}; +static inline Region subtract(int lhs) +{ + Region reg; + int* storage = reg.storage; + if (lhs > 0) + storage++; + reg.count = storage - reg.storage; + return reg; +} +void bar(int a) +{ + const Region copyBack(subtract(a)); +} diff --git a/gcc/tree-inline.c b/gcc/tree-inline.c index 2d3958f..32cd852 100644 --- a/gcc/tree-inline.c +++ b/gcc/tree-inline.c @@ -2021,8 +2021,11 @@ copy_phis_for_bb (basic_block bb, copy_body_data *id) && !is_gimple_val (new_arg)) { gimple_seq stmts = NULL; + basic_block tem; new_arg = force_gimple_operand (new_arg, &stmts, true, NULL); - gsi_insert_seq_on_edge_immediate (new_edge, stmts); + tem = gsi_insert_seq_on_edge_immediate (new_edge, stmts); + if (tem) + new_edge = single_succ_edge (tem); } add_phi_arg (new_phi, new_arg, new_edge, gimple_phi_arg_location_from_edge (phi, old_edge)); |