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(loop_iterations): Move all failure exits after the computation of final_value.

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From-SVN: r8324
This commit is contained in:
Jim Wilson 1994-10-20 13:33:42 -07:00
parent 2c14c928e7
commit 00c0c63c8a
1 changed files with 22 additions and 23 deletions
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45
gcc/unroll.c
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@ -3155,28 +3155,6 @@ loop_iterations (loop_start, loop_end)
/* iteration_info already printed a message. */
return 0;
if (increment == 0)
{
if (loop_dump_stream)
fprintf (loop_dump_stream,
"Loop unrolling: Increment value can't be calculated.\n");
return 0;
}
if (GET_CODE (increment) != CONST_INT)
{
if (loop_dump_stream)
fprintf (loop_dump_stream,
"Loop unrolling: Increment value not constant.\n");
return 0;
}
if (GET_CODE (initial_value) != CONST_INT)
{
if (loop_dump_stream)
fprintf (loop_dump_stream,
"Loop unrolling: Initial value not constant.\n");
return 0;
}
/* If the comparison value is an invariant register, then try to find
its value from the insns before the start of the loop. */
@ -3225,7 +3203,28 @@ loop_iterations (loop_start, loop_end)
loop_increment = increment;
loop_final_value = final_value;
if (final_value == 0)
if (increment == 0)
{
if (loop_dump_stream)
fprintf (loop_dump_stream,
"Loop unrolling: Increment value can't be calculated.\n");
return 0;
}
else if (GET_CODE (increment) != CONST_INT)
{
if (loop_dump_stream)
fprintf (loop_dump_stream,
"Loop unrolling: Increment value not constant.\n");
return 0;
}
else if (GET_CODE (initial_value) != CONST_INT)
{
if (loop_dump_stream)
fprintf (loop_dump_stream,
"Loop unrolling: Initial value not constant.\n");
return 0;
}
else if (final_value == 0)
{
if (loop_dump_stream)
fprintf (loop_dump_stream,