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(write_tree_1): Avoid emitting '-2147483648'.

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From-SVN: r10523
This commit is contained in:
Richard Kenner 1995-10-26 19:13:47 -04:00
parent f3d723e9ef
commit b030d59810
1 changed files with 14 additions and 5 deletions
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19
gcc/genrecog.c
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@ -1,5 +1,5 @@
/* Generate code from machine description to recognize rtl as insns.
Copyright (C) 1987, 1988, 1992, 1993, 1994 Free Software Foundation, Inc.
Copyright (C) 1987, 88, 92, 93, 94, 1995 Free Software Foundation, Inc.
This file is part of GNU CC.
@ -1343,13 +1343,22 @@ write_tree_1 (tree, prevpos, afterward, type)
if (p->test_elt_one_int)
printf ("XINT (x%d, 1) == %d && ", depth, p->elt_one_int);
if (p->test_elt_zero_wide)
printf (
{
/* Set offset to 1 iff the number might get propagated to
unsigned long by ANSI C rules, else 0.
Prospective hosts are required to have at least 32 bit
ints, and integer constants in machine descriptions
must fit in 32 bit, thus it suffices to check only
for 1 << 31 . */
HOST_WIDE_INT offset = p->elt_zero_wide == -2147483647 - 1;
printf (
#if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_INT
"XWINT (x%d, 0) == %d && ",
"XWINT (x%d, 0) == %d%s && ",
#else
"XWINT (x%d, 0) == %ld && ",
"XWINT (x%d, 0) == %ld%s && ",
#endif
depth, p->elt_zero_wide);
depth, p->elt_zero_wide + offset, offset ? "-1" : "");
}
if (p->veclen)
printf ("XVECLEN (x%d, 0) == %d && ", depth, p->veclen);
if (p->dupno >= 0)