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| author | David Monniaux <david.monniaux@univ-grenoble-alpes.fr> | 2019-06-03 20:09:19 +0200 |
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| committer | David Monniaux <david.monniaux@univ-grenoble-alpes.fr> | 2019-06-03 20:11:48 +0200 |
| commit | 677771949bd62f7f5bbcf99bba6b6f816f07a6c2 (patch) | |
| tree | 597b2ccc5867bc2bbb083c4e13f792671b2042c1 /riscV/SelectOpproof.v | |
| parent | 36e64ee96ded0c94c83da6fb12202c276e66ba45 (diff) | |
| parent | b7e0d70de2ace6f0a22f9f65cc244d875ee48496 (diff) | |
| download | compcert-kvx-677771949bd62f7f5bbcf99bba6b6f816f07a6c2.tar.gz compcert-kvx-677771949bd62f7f5bbcf99bba6b6f816f07a6c2.zip | |
Merge branch 'if-conversion' of https://github.com/AbsInt/CompCert into mppa-if-conversion
Diffstat (limited to 'riscV/SelectOpproof.v')
| -rw-r--r-- | riscV/SelectOpproof.v | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/riscV/SelectOpproof.v b/riscV/SelectOpproof.v index 9966305c..46cc1bbc 100644 --- a/riscV/SelectOpproof.v +++ b/riscV/SelectOpproof.v @@ -20,6 +20,7 @@ Require Import Coqlib. Require Import Maps. Require Import AST. +Require Import Zbits. Require Import Integers. Require Import Floats. Require Import Values. @@ -376,7 +377,7 @@ Proof. change (Int.ltu (Int.repr 32) Int64.iwordsize') with true; simpl. apply Val.lessdef_same. f_equal. transitivity (Int.repr (Z.shiftr (Int.signed i * Int.signed i0) 32)). - unfold Int.mulhs; f_equal. rewrite Int.Zshiftr_div_two_p by omega. reflexivity. + unfold Int.mulhs; f_equal. rewrite Zshiftr_div_two_p by omega. reflexivity. apply Int.same_bits_eq; intros n N. change Int.zwordsize with 32 in *. assert (N1: 0 <= n < 64) by omega. @@ -404,7 +405,7 @@ Proof. change (Int.ltu (Int.repr 32) Int64.iwordsize') with true; simpl. apply Val.lessdef_same. f_equal. transitivity (Int.repr (Z.shiftr (Int.unsigned i * Int.unsigned i0) 32)). - unfold Int.mulhu; f_equal. rewrite Int.Zshiftr_div_two_p by omega. reflexivity. + unfold Int.mulhu; f_equal. rewrite Zshiftr_div_two_p by omega. reflexivity. apply Int.same_bits_eq; intros n N. change Int.zwordsize with 32 in *. assert (N1: 0 <= n < 64) by omega. @@ -876,6 +877,20 @@ Proof. red; intros. unfold floatofsingle. TrivialExists. Qed. +Theorem eval_select: + forall le ty cond al vl a1 v1 a2 v2 a b, + select ty cond al a1 a2 = Some a -> + eval_exprlist ge sp e m le al vl -> + eval_expr ge sp e m le a1 v1 -> + eval_expr ge sp e m le a2 v2 -> + eval_condition cond vl m = Some b -> + exists v, + eval_expr ge sp e m le a v + /\ Val.lessdef (Val.select (Some b) v1 v2 ty) v. +Proof. + unfold select; intros; discriminate. +Qed. + Theorem eval_addressing: forall le chunk a v b ofs, eval_expr ge sp e m le a v -> |