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Add intrinsics.fused_mul_add

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gingerBill
2022-05-26 18:06:26 +01:00
parent 20e7b5c88a
commit 421d45a7a7
5 changed files with 85 additions and 0 deletions
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src/llvm_backend_proc.cpp
+25
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@@ -2005,6 +2005,31 @@ lbValue lb_build_builtin_proc(lbProcedure *p, Ast *expr, TypeAndValue const &tv,
return res;
}
case BuiltinProc_fused_mul_add:
{
Type *type = tv.type;
lbValue x = lb_emit_conv(p, lb_build_expr(p, ce->args[0]), type);
lbValue y = lb_emit_conv(p, lb_build_expr(p, ce->args[1]), type);
lbValue z = lb_emit_conv(p, lb_build_expr(p, ce->args[2]), type);
char const *name = "llvm.fma";
LLVMTypeRef types[1] = {lb_type(p->module, type)};
unsigned id = LLVMLookupIntrinsicID(name, gb_strlen(name));
GB_ASSERT_MSG(id != 0, "Unable to find %s.%s", name, LLVMPrintTypeToString(types[0]));
LLVMValueRef ip = LLVMGetIntrinsicDeclaration(p->module->mod, id, types, gb_count_of(types));
LLVMValueRef args[3] = {};
args[0] = x.value;
args[1] = y.value;
args[2] = z.value;
lbValue res = {};
res.value = LLVMBuildCall(p->builder, ip, args, gb_count_of(args), "");
res.type = type;
return res;
}
case BuiltinProc_mem_copy:
{
lbValue dst = lb_build_expr(p, ce->args[0]);