2013-05-03 Joern Rennecke <joern.rennecke@embecosm.com>
PR tree-optimization/57027
* tree-ssa-math-opts.c (convert_mult_to_fma): When checking for
fnms opportunity, check we got the prerequisite kind of tree / gimple
before using accessor functions.
From-SVN: r198577
+2013-05-03 Joern Rennecke <joern.rennecke@embecosm.com>
+
+ PR tree-optimization/57027
+ * tree-ssa-math-opts.c (convert_mult_to_fma): When checking
+ for fnms opportunity, check we got the prerequisite kind
+ of tree / gimple before using accessor functions.
+
2013-05-03 Richard Biener <rguenther@suse.de>
* double-int.h (lshift): New overload without precision
&& optab_handler (fnma_optab, TYPE_MODE (type)) != CODE_FOR_nothing)
{
tree rhs2 = gimple_assign_rhs2 (use_stmt);
- gimple stmt2 = SSA_NAME_DEF_STMT (rhs2);
- if (has_single_use (rhs2)
- && gimple_assign_rhs_code (stmt2) == MULT_EXPR)
- return false;
+ if (TREE_CODE (rhs2) == SSA_NAME)
+ {
+ gimple stmt2 = SSA_NAME_DEF_STMT (rhs2);
+ if (has_single_use (rhs2)
+ && is_gimple_assign (stmt2)
+ && gimple_assign_rhs_code (stmt2) == MULT_EXPR)
+ return false;
+ }
}
/* We can't handle a * b + a * b. */