The support for the linearization of builtins was already
added for __builtin_unreachable() but this builtin has
no arguments and no return value.
So, to complete the experience of builtin linearization,
add the linearization of __builtin_fma().
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@xxxxxxxxx>
---
linearize.c | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/linearize.c b/linearize.c
index bf55045bcbce..7157ba511671 100644
--- a/linearize.c
+++ b/linearize.c
@@ -2585,6 +2585,23 @@ struct entrypoint *linearize_symbol(struct symbol *sym)
* Builtin functions
*/
+static pseudo_t linearize_fma(struct entrypoint *ep, struct expression *expr)
+{
+ struct instruction *insn = alloc_typed_instruction(OP_FMA, expr->ctype);
+ struct expression *arg;
+
+ PREPARE_PTR_LIST(expr->args, arg);
+ insn->src1 = linearize_expression(ep, arg);
+ NEXT_PTR_LIST(arg)
+ insn->src2 = linearize_expression(ep, arg);
+ NEXT_PTR_LIST(arg)
+ insn->src3 = linearize_expression(ep, arg);
+ FINISH_PTR_LIST(arg);
+
+ add_one_insn(ep, insn);
+ return insn->target = alloc_pseudo(insn);
+}
+
static pseudo_t linearize_unreachable(struct entrypoint *ep, struct expression *exp)
{
add_unreachable(ep);
@@ -2597,6 +2614,9 @@ static struct sym_init {
struct symbol_op op;
} builtins_table[] = {
// must be declared in builtin.c:declare_builtins[]
+ { "__builtin_fma", linearize_fma },
+ { "__builtin_fmaf", linearize_fma },
+ { "__builtin_fmal", linearize_fma },
{ "__builtin_unreachable", linearize_unreachable },
{ }
};
--
2.28.0
