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Most CPUs implement shifts modulo the width, but ARM doesn't. Don't 

depend on this UB.
This commit is contained in:
joerg 2014-04-30 21:04:58 +00:00
parent af32f2a15b
commit cc89f7922a
1 changed files with 3 additions and 3 deletions
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6
usr.bin/nbperf/nbperf-bdz.c
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@ -1,4 +1,4 @@
/* $NetBSD: nbperf-bdz.c,v 1.8 2013/03/01 18:26:10 joerg Exp $ */
/* $NetBSD: nbperf-bdz.c,v 1.9 2014/04/30 21:04:58 joerg Exp $ */
/*-
* Copyright (c) 2009, 2012 The NetBSD Foundation, Inc.
* All rights reserved.
@ -36,7 +36,7 @@
#endif
#include <sys/cdefs.h>
__RCSID("$NetBSD: nbperf-bdz.c,v 1.8 2013/03/01 18:26:10 joerg Exp $");
__RCSID("$NetBSD: nbperf-bdz.c,v 1.9 2014/04/30 21:04:58 joerg Exp $");
#include <err.h>
#include <inttypes.h>
@ -240,7 +240,7 @@ print_hash(struct nbperf *nbperf, struct state *state)
fprintf(nbperf->output,
"\tidx2 = idx - holes64[idx >> 6] - holes64k[idx >> 16];\n"
"\tidx2 -= popcount64(g1[idx >> 6] & g2[idx >> 6]\n"
"\t & (((uint64_t)1 << idx) - 1));\n"
"\t & (((uint64_t)1 << (idx & 63)) - 1));\n"
"\treturn idx2;\n");
fprintf(nbperf->output, "}\n");