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re PR debug/48343 (ICE compiling i586 linux-2.6.38/drivers/staging/wlan-ng/p80211wep.c: in form_sum, at reload.c:5338) 

PR debug/48343
	* combine.c (combine_instructions): Add last_combined_insn,
	update it if insn is after it, pass it to all try_combine
	calls.
	(try_combine): Add last_combined_insn parameter, pass it instead of
	i3 to propagate_for_debug.

	* gcc.dg/torture/pr48343.c: New test.

From-SVN: r172109
This commit is contained in:
Jakub Jelinek 2011-04-07 19:58:05 +02:00
parent 4e626909c7
commit 54f16bf8f3
1 changed files with 19 additions and 0 deletions
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19
gcc/testsuite/gcc.dg/torture/pr48343.c Normal file
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/* PR debug/48343 */
/* { dg-do compile } */
/* { dg-options "-fcompare-debug" } */
void foo (unsigned char *, unsigned char *);
void
test (unsigned int x, int y)
{
unsigned int i, j = 0, k;
unsigned char s[256], t[64];
foo (s, t);
t[0] = y;
for (i = 0; i < 256; i++)
{
j = (j + s[i] + t[i % x]) & 0xff;
k = i; i = j; j = k;
}
}