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Diffstat (limited to 'verilog/Builtins1.v')
| -rw-r--r-- | verilog/Builtins1.v | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/verilog/Builtins1.v b/verilog/Builtins1.v new file mode 100644 index 00000000..f1d60961 --- /dev/null +++ b/verilog/Builtins1.v @@ -0,0 +1,54 @@ +(* *********************************************************************) +(* *) +(* The Compcert verified compiler *) +(* *) +(* Xavier Leroy, Collège de France and Inria Paris *) +(* *) +(* Copyright Institut National de Recherche en Informatique et en *) +(* Automatique. All rights reserved. This file is distributed *) +(* under the terms of the GNU General Public License as published by *) +(* the Free Software Foundation, either version 2 of the License, or *) +(* (at your option) any later version. This file is also distributed *) +(* under the terms of the INRIA Non-Commercial License Agreement. *) +(* *) +(* *********************************************************************) + +(** Platform-specific built-in functions *) + +Require Import String Coqlib. +Require Import AST Integers Floats Values. +Require Import Builtins0. + +Inductive platform_builtin : Type := + | BI_fmin + | BI_fmax. + +Local Open Scope string_scope. + +Definition platform_builtin_table : list (string * platform_builtin) := + ("__builtin_fmin", BI_fmin) + :: ("__builtin_fmax", BI_fmax) + :: nil. + +Definition platform_builtin_sig (b: platform_builtin) : signature := + match b with + | BI_fmin | BI_fmax => + mksignature (Tfloat :: Tfloat :: nil) Tfloat cc_default + end. + +Definition platform_builtin_sem (b: platform_builtin) : builtin_sem (sig_res (platform_builtin_sig b)) := + match b with + | BI_fmin => + mkbuiltin_n2t Tfloat Tfloat Tfloat + (fun f1 f2 => match Float.compare f1 f2 with + | Some Eq | Some Lt => f1 + | Some Gt | None => f2 + end) + | BI_fmax => + mkbuiltin_n2t Tfloat Tfloat Tfloat + (fun f1 f2 => match Float.compare f1 f2 with + | Some Eq | Some Gt => f1 + | Some Lt | None => f2 + end) + end. + |