(yylex): Ensure TOTAL_PARTS is wide enough to store a constant as wide as we can...

(yylex): Ensure TOTAL_PARTS is wide enough to store a
constant as wide as we can store in an INTEGER_CST.
(LONG_LONG_TYPE_SIZE): Deleted; no longer needed.

From-SVN: r1588

diff --git a/gcc/c-lex.c b/gcc/c-lex.c
index e53eb9d..a353ba9 100644 (file)
--- a/gcc/c-lex.c
+++ b/gcc/c-lex.c
@@ -65,10 +65,6 @@ extern int yydebug;
 /* File used for outputting assembler code.  */
 extern FILE *asm_out_file;
 
-#ifndef LONG_LONG_TYPE_SIZE
-#define LONG_LONG_TYPE_SIZE (BITS_PER_WORD * 2)
-#endif
-
 #ifndef WCHAR_TYPE_SIZE
 #ifdef INT_TYPE_SIZE
 #define WCHAR_TYPE_SIZE INT_TYPE_SIZE
@@ -1170,8 +1166,10 @@ yylex ()
        /* for multi-precision arithmetic,
           we actually store only HOST_BITS_PER_CHAR bits in each part.
           The number of parts is chosen so as to be sufficient to hold
-          at least as many bits as are in a target `long long' value.  */
-#define TOTAL_PARTS (LONG_LONG_TYPE_SIZE / HOST_BITS_PER_CHAR) + 2
+          the enough bits to fit into the two HOST_WIDE_INTs that contain
+          the integer value (this is always at least as many bits as are
+          in a target `long long' value, but may be wider).  */
+#define TOTAL_PARTS ((HOST_BITS_PER_WIDE_INT / HOST_BITS_PER_CHAR) * 2 + 2)
        int parts[TOTAL_PARTS];
        int overflow = 0;