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Remove all the special-case code for INT64_IS_BUSTED, per decision that

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we're not going to support that anymore.

I did keep the 64-bit-CRC-with-32-bit-arithmetic code, since it has a
performance excuse to live.  It's a bit moot since that's all ifdef'd
out, of course.
This commit is contained in:
Tom Lane
2010-01-07 04:53:35 +00:00
parent c282b36dd2
commit 901be0fad4
16 changed files with 45 additions and 203 deletions
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10
src/backend/utils/adt/int8.c
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/adt/int8.c,v 1.76 2010/01/02 16:57:54 momjian Exp $
* $PostgreSQL: pgsql/src/backend/utils/adt/int8.c,v 1.77 2010/01/07 04:53:34 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -76,15 +76,12 @@ scanint8(const char *str, bool errorOK, int64 *result)
* Do an explicit check for INT64_MIN. Ugly though this is, it's
* cleaner than trying to get the loop below to handle it portably.
*/
#ifndef INT64_IS_BUSTED
if (strncmp(ptr, "9223372036854775808", 19) == 0)
{
tmp = -INT64CONST(0x7fffffffffffffff) - 1;
ptr += 19;
goto gotdigits;
}
#endif
sign = -1;
}
else if (*ptr == '+')
@ -575,12 +572,9 @@ int8mul(PG_FUNCTION_ARGS)
* Since the division is likely much more expensive than the actual
* multiplication, we'd like to skip it where possible. The best bang for
* the buck seems to be to check whether both inputs are in the int32
* range; if so, no overflow is possible. (But that only works if we
* really have a 64-bit int64 datatype...)
* range; if so, no overflow is possible.
*/
#ifndef INT64_IS_BUSTED
if (arg1 != (int64) ((int32) arg1) || arg2 != (int64) ((int32) arg2))
#endif
{
if (arg2 != 0 &&
(result / arg2 != arg1 || (arg2 == -1 && arg1 < 0 && result < 0)))