From: Jacob Lifshay <programmerjake@gmail.com>
Date: Tue, 25 Jul 2023 01:42:27 +0000 (-0700)
Subject: add support for C conditional operator
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=c702c9b852486e81cd1877921c15b79d950d580e;p=openpower-isa.git

add support for C conditional operator

its used by setbc's pseudocode and by the bfp_* functions
---

diff --git a/src/openpower/decoder/pseudo/lexer.py b/src/openpower/decoder/pseudo/lexer.py
index 339a1980..b454b2ac 100644
--- a/src/openpower/decoder/pseudo/lexer.py
+++ b/src/openpower/decoder/pseudo/lexer.py
@@ -363,6 +363,7 @@ class PowerLexer:
         'WS',
         'NEWLINE',
         'COMMA',
+        'QMARK',
         'PERIOD',
         'SEMICOLON',
         'INDENT',
@@ -424,6 +425,7 @@ class PowerLexer:
     t_BITOR = r'\|'
     t_BITAND = r'\&'
     t_BITXOR = r'\^'
+    t_QMARK = r'\?'
 
     # Ply nicely documented how to do this.
 
diff --git a/src/openpower/decoder/pseudo/parser.py b/src/openpower/decoder/pseudo/parser.py
index a8ab32cb..a409d86a 100644
--- a/src/openpower/decoder/pseudo/parser.py
+++ b/src/openpower/decoder/pseudo/parser.py
@@ -820,8 +820,12 @@ class PowerParser:
     #  as I don't support 'and', 'or', and 'not' this works down to 'comparison'
 
     def p_test(self, p):
-        "test : comparison"
-        p[0] = p[1]
+        """test : comparison
+                | comparison QMARK test COLON test"""
+        if len(p) == 2:
+            p[0] = p[1]
+        else:
+            p[0] = ast.IfExp(test=p[1], body=p[3], orelse=p[5])
 
     # arglist: (argument ',')* (argument [',']| '*' test [',' '**' test]
     # | '**' test)