From 076ba1571553e691d508469376da0e6fbe32b6ee Mon Sep 17 00:00:00 2001 From: Richard Guenther Date: Fri, 16 Oct 2009 16:57:31 +0000 Subject: [PATCH] re PR tree-optimization/41728 (error: SSA name in freelist but still referenced) 2009-10-16 Richard Guenther PR tree-optimization/41728 * tree-ssa-dom.c (optimize_stmt): Mark the stmt modified if fold_stmt did anything. * gcc.c-torture/compile/pr41728.c: New testcase. From-SVN: r152910 --- gcc/ChangeLog | 6 ++++++ gcc/testsuite/ChangeLog | 5 +++++ gcc/testsuite/gcc.c-torture/compile/pr41728.c | 12 ++++++++++++ gcc/tree-ssa-dom.c | 1 + 4 files changed, 24 insertions(+) create mode 100644 gcc/testsuite/gcc.c-torture/compile/pr41728.c diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 3377560..79cd10f 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,11 @@ 2009-10-16 Richard Guenther + PR tree-optimization/41728 + * tree-ssa-dom.c (optimize_stmt): Mark the stmt modified + if fold_stmt did anything. + +2009-10-16 Richard Guenther + PR lto/41715 * lto-streamer-in.c (lto_input_tree_ref): Revert last change. (maybe_fixup_handled_component): New function. diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 08f34e5..0f3e6a3 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,5 +1,10 @@ 2009-10-16 Richard Guenther + PR tree-optimization/41728 + * gcc.c-torture/compile/pr41728.c: New testcase. + +2009-10-16 Richard Guenther + PR lto/41598 * gcc.dg/lto/20091016-1_0.c: New testcase. * gcc.dg/lto/20091016-1_1.c: Likewise. diff --git a/gcc/testsuite/gcc.c-torture/compile/pr41728.c b/gcc/testsuite/gcc.c-torture/compile/pr41728.c new file mode 100644 index 0000000..df379d9 --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/compile/pr41728.c @@ -0,0 +1,12 @@ +int a[8]; +int s244(void) +{ + int lrc, j; + lrc = 0; + for (j=0; j<7; j++) + if(a[j] != a[j+1]) + lrc = 1; + if (lrc != 0) + return 0; + return 1; +} diff --git a/gcc/tree-ssa-dom.c b/gcc/tree-ssa-dom.c index 1e2c8f2..6e861b1 100644 --- a/gcc/tree-ssa-dom.c +++ b/gcc/tree-ssa-dom.c @@ -2099,6 +2099,7 @@ optimize_stmt (basic_block bb, gimple_stmt_iterator si) if (fold_stmt (&si)) { stmt = gsi_stmt (si); + gimple_set_modified (stmt, true); if (dump_file && (dump_flags & TDF_DETAILS)) { -- 2.7.4