diff options
Diffstat (limited to 'gcc/expr.c')
| -rw-r--r-- | gcc/expr.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/gcc/expr.c b/gcc/expr.c index e6b42795b3a..df15c928bee 100644 --- a/gcc/expr.c +++ b/gcc/expr.c @@ -7695,6 +7695,18 @@ expand_expr_real_2 (sepops ops, rtx target, enum machine_mode tmode, optab opt = fma_optab; gimple def0, def2; + /* If there is no insn for FMA, emit it as __builtin_fma{,f,l} + call. */ + if (optab_handler (fma_optab, mode) == CODE_FOR_nothing) + { + tree fn = mathfn_built_in (TREE_TYPE (treeop0), BUILT_IN_FMA); + tree call_expr; + + gcc_assert (fn != NULL_TREE); + call_expr = build_call_expr (fn, 3, treeop0, treeop1, treeop2); + return expand_builtin (call_expr, target, subtarget, mode, false); + } + def0 = get_def_for_expr (treeop0, NEGATE_EXPR); def2 = get_def_for_expr (treeop2, NEGATE_EXPR); |