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loop.c (move_movables): Handle combination of m->consec...

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ChangeLog:
	* loop.c (move_movables): Handle combination of m->consec,
	m->move_insn_first, and m->insert_temp all nonzero correctly.
testsuite/ChangeLog:
	* gcc.dg/20031216-1.c: New test.

From-SVN: r74778
This commit is contained in:
Ulrich Weigand 2003-12-18 12:15:37 +00:00 committed by Ulrich Weigand
parent 51287c1498
commit cebf212fa5
4 changed files with 48 additions and 1 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2003-12-18 Ulrich Weigand <uweigand@de.ibm.com>
* loop.c (move_movables): Handle combination of m->consec,
m->move_insn_first, and m->insert_temp all nonzero correctly.
2003-12-18 Kazu Hirata <kazu@cs.umass.edu>
* calls.c (load_register_parameters): Don't use

3
gcc/loop.c
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@ -2113,7 +2113,8 @@ move_movables (struct loop *loop, struct loop_movables *movables,
/* The SET_SRC might not be invariant, so we must
use the REG_EQUAL note. */
start_sequence ();
emit_move_insn (m->set_dest, m->set_src);
emit_move_insn (m->insert_temp ? newreg : m->set_dest,
m->set_src);
seq = get_insns ();
end_sequence ();

4
gcc/testsuite/ChangeLog
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@ -1,3 +1,7 @@
2003-12-18 Ulrich Weigand <uweigand@de.ibm.com>
* gcc.dg/20031216-1.c: New test.
2003-12-18 Giovanni Bajo <giovannibajo@gcc.gnu.org>
PR c++/9154

37
gcc/testsuite/gcc.dg/20031216-1.c Normal file
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@ -0,0 +1,37 @@
/* This used to abort due to a loop bug on s390*. */
/* { dg-do run } */
/* { dg-options "-O2" } */
/* { dg-options "-O2 -fPIC" { target s390*-*-* } } */
int count = 0;
char *str;
void test (int flag)
{
char *p;
for (;;)
{
if (count > 5)
return;
p = "test";
if (flag)
count++;
str = p;
}
}
int main (void)
{
test (1);
if (str[0] != 't')
abort ();
return 0;
}