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Add testcases for PR 47381.

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2011-08-06  H.J. Lu  <hongjiu.lu@intel.com>

	PR target/47381
	* gcc.dg/pr47381-1.c: New.
	* gcc.dg/pr47381-2.c: Likewise.
	* gcc.target/i386/pr47381.c: Likewise.

From-SVN: r177514
This commit is contained in:
H.J. Lu 2011-08-06 14:57:52 +00:00 • committed by H.J. Lu
parent 8f2b8cdefe
commit 56b6687b9e
4 changed files with 59 additions and 0 deletions
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7
gcc/testsuite/ChangeLog
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@ -1,3 +1,10 @@
2011-08-06 H.J. Lu <hongjiu.lu@intel.com>
PR target/47381
* gcc.dg/pr47381-1.c: New.
* gcc.dg/pr47381-2.c: Likewise.
* gcc.target/i386/pr47381.c: Likewise.
2011-08-06 H.J. Lu <hongjiu.lu@intel.com>
PR middle-end/47727

26
gcc/testsuite/gcc.dg/pr47381-1.c Normal file
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/* { dg-do compile } */
/* { dg-options "-O2" } */
typedef unsigned IPos;
typedef unsigned char uch;
extern uch window[];
unsigned max_chain_length;
unsigned strstart;
int longest_match(IPos cur_match, int len, int best_len)
{
unsigned chain_length = max_chain_length;
register uch *scan = window + strstart;
register uch *match;
register uch scan_end1 = scan[best_len-1];
register uch scan_end = scan[best_len];
do {
;
match = window + cur_match;
if (match[best_len] != scan_end ||
match[best_len-1] != scan_end1 ||
*match != *scan ||
*++match != scan[1]) continue;
best_len = len;
} while ( --chain_length != 0);
return best_len;
}

13
gcc/testsuite/gcc.dg/pr47381-2.c Normal file
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/* { dg-do compile } */
/* { dg-options "-O2" } */
typedef unsigned long ulg;
long block_start;
typedef unsigned char uch;
extern uch window[];
unsigned strstart;
ulg flush_block (char *buf, ulg stored_len, int eof);
ulg deflate()
{
return flush_block(block_start >= 0L ? (char*)&window[(unsigned)block_start] : (char*)((void *)0), (long)strstart - block_start, (1));
}

13
gcc/testsuite/gcc.target/i386/pr47381.c Normal file
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/* { dg-do compile } */
/* { dg-options "-O2 -march=atom" } */
struct foo_t {
int limit;
} foo[3];
void
bar () {
int i;
for (i = 0; i < 3; i++) {
__builtin_memset (&foo[i], 0, sizeof(*foo));
}
}