summaryrefslogtreecommitdiff
path: root/gcc/value-prof.c
diff options
context:
space:
mode:
authorJakub Jelinek <jakub@redhat.com>2011-01-07 19:39:11 +0100
committerJakub Jelinek <jakub@gcc.gnu.org>2011-01-07 19:39:11 +0100
commitc6a8f6de089b86578cd788b6ef168842fc9bd3c8 (patch)
tree98a65d5d31b70305f89310e6bee59826c2bb6216 /gcc/value-prof.c
parentfe95fbf90773ebf53740e46a38ea5e923233a25b (diff)
downloadgcc-c6a8f6de089b86578cd788b6ef168842fc9bd3c8.tar.gz
re PR bootstrap/47187 (profiledbootstrap failure on i386)
PR bootstrap/47187 * value-prof.c (gimple_stringop_fixed_value): Handle lhs of the call properly. * gcc.dg/tree-prof/pr47187.c: New test. From-SVN: r168581
Diffstat (limited to 'gcc/value-prof.c')
-rw-r--r--gcc/value-prof.c17
1 files changed, 16 insertions, 1 deletions
diff --git a/gcc/value-prof.c b/gcc/value-prof.c
index 414b94887fe..0a36ed210c8 100644
--- a/gcc/value-prof.c
+++ b/gcc/value-prof.c
@@ -1,5 +1,5 @@
/* Transformations based on profile information for values.
- Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+ Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
Free Software Foundation, Inc.
This file is part of GCC.
@@ -1401,6 +1401,21 @@ gimple_stringop_fixed_value (gimple vcall_stmt, tree icall_size, int prob,
e_vj->probability = REG_BR_PROB_BASE;
e_vj->count = all - count;
+ /* Insert PHI node for the call result if necessary. */
+ if (gimple_call_lhs (vcall_stmt)
+ && TREE_CODE (gimple_call_lhs (vcall_stmt)) == SSA_NAME)
+ {
+ tree result = gimple_call_lhs (vcall_stmt);
+ gimple phi = create_phi_node (result, join_bb);
+ SSA_NAME_DEF_STMT (result) = phi;
+ gimple_call_set_lhs (vcall_stmt,
+ make_ssa_name (SSA_NAME_VAR (result), vcall_stmt));
+ add_phi_arg (phi, gimple_call_lhs (vcall_stmt), e_vj, UNKNOWN_LOCATION);
+ gimple_call_set_lhs (icall_stmt,
+ make_ssa_name (SSA_NAME_VAR (result), icall_stmt));
+ add_phi_arg (phi, gimple_call_lhs (icall_stmt), e_ij, UNKNOWN_LOCATION);
+ }
+
/* Because these are all string op builtins, they're all nothrow. */
gcc_assert (!stmt_could_throw_p (vcall_stmt));
gcc_assert (!stmt_could_throw_p (icall_stmt));