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| author | Richard Biener <rguenther@suse.de> | 2016-10-21 07:07:06 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2016-10-21 07:07:06 +0000 |
| commit | a20d03c88261b7d475db7c410c1018df326c67af (patch) | |
| tree | dc2a148dd9df35d3f1ed9a36fe703517ace05d4c /gcc | |
| parent | 924fae46b341e810ec5f1fa0e99b5f0cadeff7eb (diff) | |
| download | gcc-a20d03c88261b7d475db7c410c1018df326c67af.zip gcc-a20d03c88261b7d475db7c410c1018df326c67af.tar.gz gcc-a20d03c88261b7d475db7c410c1018df326c67af.tar.bz2 | |
re PR c++/78051 (error: dead STMT in EH table when using -O2)
2016-10-21 Richard Biener <rguenther@suse.de>
PR tree-optimization/78051
* tree-vrp.c (evrp_dom_walker::before_dom_children): Update stmt
and mark replaced if folding did something.
* g++.dg/torture/pr78051.C: New testcase.
From-SVN: r241394
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/pr78051.C | 9 | ||||
| -rw-r--r-- | gcc/tree-vrp.c | 6 |
4 files changed, 25 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index bc1d9d1..7337094 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2016-10-21 Richard Biener <rguenther@suse.de> + + PR tree-optimization/78051 + * tree-vrp.c (evrp_dom_walker::before_dom_children): Update stmt + and mark replaced if folding did something. + 2016-10-21 David Edelsohn <dje.gcc@gmail.com> * config/rs6000/rs6000.c (rs6000_assemble_visibility): Swap "internal" diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 22993ad..8033762 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2016-10-21 Richard Biener <rguenther@suse.de> + + PR tree-optimization/78051 + * g++.dg/torture/pr78051.C: New testcase. + 2016-10-20 Bernd Edlinger <bernd.edlinger@hotmail.de> * c-c++-common/wdate-time.c: Restored test case. diff --git a/gcc/testsuite/g++.dg/torture/pr78051.C b/gcc/testsuite/g++.dg/torture/pr78051.C new file mode 100644 index 0000000..ff28368 --- /dev/null +++ b/gcc/testsuite/g++.dg/torture/pr78051.C @@ -0,0 +1,9 @@ +extern "C" { + typedef int FILE; + int *stdout; + int fputs(const char *, FILE *); +} +void print_packet() { + const char *color[]{"", "", ""}; + fputs(color[2], stdout); +} diff --git a/gcc/tree-vrp.c b/gcc/tree-vrp.c index c1750d0..9675ca2 100644 --- a/gcc/tree-vrp.c +++ b/gcc/tree-vrp.c @@ -10850,7 +10850,11 @@ evrp_dom_walker::before_dom_children (basic_block bb) = replace_uses_in (stmt, op_with_constant_singleton_value_range); if (fold_stmt (&gsi, follow_single_use_edges) || did_replace) - update_stmt (gsi_stmt (gsi)); + { + stmt = gsi_stmt (gsi); + update_stmt (stmt); + did_replace = true; + } if (did_replace) { |