From 03abbc5d244919a7f42f483163a72e3cda99fe74 Mon Sep 17 00:00:00 2001 From: rguenth Date: Mon, 10 Oct 2011 15:45:53 +0000 Subject: [PATCH] 2011-10-10 Richard Guenther PR middle-end/50389 * gimple-fold.c (gimplify_and_update_call_from_tree): Do not mark symbols for renaming. Append the VUSE to all statements that possibly can have one. * gcc.dg/torture/pr50389.c: New testcase. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@179757 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/ChangeLog | 7 +++++++ gcc/gimple-fold.c | 11 ++++------- gcc/testsuite/ChangeLog | 5 +++++ gcc/testsuite/gcc.dg/torture/pr50389.c | 15 +++++++++++++++ 4 files changed, 31 insertions(+), 7 deletions(-) create mode 100644 gcc/testsuite/gcc.dg/torture/pr50389.c diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 078c997..b3219b5 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,12 @@ 2011-10-10 Richard Guenther + PR middle-end/50389 + * gimple-fold.c (gimplify_and_update_call_from_tree): Do not + mark symbols for renaming. Append the VUSE to all statements + that possibly can have one. + +2011-10-10 Richard Guenther + * ipa-split.c (pass_split_functions): Add verification TODOs. (pass_feedback_split_functions): Likewise. diff --git a/gcc/gimple-fold.c b/gcc/gimple-fold.c index b4993fd..7df7e69 100644 --- a/gcc/gimple-fold.c +++ b/gcc/gimple-fold.c @@ -588,13 +588,10 @@ gimplify_and_update_call_from_tree (gimple_stmt_iterator *si_p, tree expr) } new_stmt = gsi_stmt (i); if (gimple_in_ssa_p (cfun)) - { - find_new_referenced_vars (new_stmt); - mark_symbols_for_renaming (new_stmt); - } - /* If the new statement has a VUSE, update it with exact SSA name we - know will reach this one. */ - if (gimple_vuse (new_stmt)) + find_new_referenced_vars (new_stmt); + /* If the new statement possibly has a VUSE, update it with exact SSA + name we know will reach this one. */ + if (gimple_has_mem_ops (new_stmt)) { /* If we've also seen a previous store create a new VDEF for the latter one, and make that the new reaching VUSE. */ diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 7d978b8..d3299d8 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,5 +1,10 @@ 2011-10-10 Richard Guenther + PR middle-end/50389 + * gcc.dg/torture/pr50389.c: New testcase. + +2011-10-10 Richard Guenther + PR middle-end/50195 * gcc.dg/builtins-47.c: Optimize. diff --git a/gcc/testsuite/gcc.dg/torture/pr50389.c b/gcc/testsuite/gcc.dg/torture/pr50389.c new file mode 100644 index 0000000..6d8b095 --- /dev/null +++ b/gcc/testsuite/gcc.dg/torture/pr50389.c @@ -0,0 +1,15 @@ +/* { dg-do compile } */ +/* { dg-options "-freorder-blocks -ftracer" } */ + +extern int data[]; +extern int i; + +void +foo (void) +{ + char buf[8]; + __builtin___memcpy_chk (buf, data, i ? 8 : 4, + __builtin_object_size (buf, 0)); + __builtin___memcpy_chk (buf, data, i ? 8 : 4, + __builtin_object_size (buf, 0)); +} -- 2.7.4