diff options
| author | Xavier Leroy <xavier.leroy@college-de-france.fr> | 2021-06-10 09:52:47 +0200 |
|---|---|---|
| committer | Xavier Leroy <xavier.leroy@college-de-france.fr> | 2021-08-22 13:22:37 +0200 |
| commit | e9f40aaca38ba81f3e9e5c0a5e03de9fa074d838 (patch) | |
| tree | 3c0fb02295c22135786f8633613bd8320472c37a /arm | |
| parent | 4fe221a26400fcf1aaca74889afffa5d01897b13 (diff) | |
| download | compcert-kvx-e9f40aaca38ba81f3e9e5c0a5e03de9fa074d838.tar.gz compcert-kvx-e9f40aaca38ba81f3e9e5c0a5e03de9fa074d838.zip | |
Int.sign_ext_shr_shl: weaker hypothesis
Works also for sign_ext 32.
ARM, RISC-V: adapt Asmgenproof1 accordingly
Diffstat (limited to 'arm')
| -rw-r--r-- | arm/Asmgenproof1.v | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arm/Asmgenproof1.v b/arm/Asmgenproof1.v index b94964a0..6f0482dc 100644 --- a/arm/Asmgenproof1.v +++ b/arm/Asmgenproof1.v @@ -1218,7 +1218,7 @@ Proof. split. unfold rs2; Simpl. unfold rs1; Simpl. unfold Val.shr, Val.shl; destruct (rs x0); auto. change (Int.ltu (Int.repr 24) Int.iwordsize) with true; simpl. - f_equal. symmetry. apply (Int.sign_ext_shr_shl 8). compute; auto. + f_equal. symmetry. apply (Int.sign_ext_shr_shl 8). compute; intuition congruence. intros. unfold rs2, rs1; Simpl. (* Ocast16signed *) destruct Archi.thumb2_support. @@ -1231,7 +1231,7 @@ Proof. split. unfold rs2; Simpl. unfold rs1; Simpl. unfold Val.shr, Val.shl; destruct (rs x0); auto. change (Int.ltu (Int.repr 16) Int.iwordsize) with true; simpl. - f_equal. symmetry. apply (Int.sign_ext_shr_shl 16). compute; auto. + f_equal. symmetry. apply (Int.sign_ext_shr_shl 16). compute; intuition congruence. intros. unfold rs2, rs1; Simpl. (* Oaddimm *) generalize (addimm_correct x x0 i k rs m). |