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| author | Tristan Gingold <tgingold@free.fr> | 2020-06-16 07:29:53 +0200 |
|---|---|---|
| committer | Tristan Gingold <tgingold@free.fr> | 2020-06-16 07:29:53 +0200 |
| commit | c033bff91ebf329f3876d70b49588e1d785fc1f7 (patch) | |
| tree | f5652e131531e5ea1c478e1df219345d4e7d7daa /src/psl/psl-qm.adb | |
| parent | 828ad61b5b84c135d74e9064112c2db4ebd6adf4 (diff) | |
| download | ghdl-c033bff91ebf329f3876d70b49588e1d785fc1f7.tar.gz ghdl-c033bff91ebf329f3876d70b49588e1d785fc1f7.tar.bz2 ghdl-c033bff91ebf329f3876d70b49588e1d785fc1f7.zip | |
vhdl psl: add support for equivalence operator. Fix #1371
Diffstat (limited to 'src/psl/psl-qm.adb')
| -rw-r--r-- | src/psl/psl-qm.adb | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/psl/psl-qm.adb b/src/psl/psl-qm.adb index 722577018..100900212 100644 --- a/src/psl/psl-qm.adb +++ b/src/psl/psl-qm.adb @@ -275,6 +275,22 @@ package body PSL.QM is return Build_Primes_And (Build_Primes (Get_Left (N), False), Build_Primes (Get_Right (N), True)); end if; + when N_Equiv_Bool => + if not Negate then + -- a <-> b <-> (a && b) || (!a && !b) + return Build_Primes_Or + (Build_Primes_And (Build_Primes (Get_Left (N), False), + Build_Primes (Get_Right (N), False)), + Build_Primes_And (Build_Primes (Get_Left (N), True), + Build_Primes (Get_Right (N), True))); + else + -- !(a <-> b) <-> (!a && b) || (a && !b) + return Build_Primes_Or + (Build_Primes_And (Build_Primes (Get_Left (N), True), + Build_Primes (Get_Right (N), False)), + Build_Primes_And (Build_Primes (Get_Left (N), False), + Build_Primes (Get_Right (N), True))); + end if; when others => Error_Kind ("build_primes", N); end case; |