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cse.c (fold_rtx): Avoid empty body in an if-statement.

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* cse.c (fold_rtx): Avoid empty body in an if-statement.

	* doloop.c (doloop_iterations_max, doloop_modify): Avoid using the
	`U' integer constant suffix.

	* dwarf2out.c (add_subscript_info): Avoid empty body in an
	else-statement.

	* sparc/sol2.h (__enable_execute_stack): Prototype.

From-SVN: r35687
This commit is contained in:
Kaveh R. Ghazi 2000-08-14 20:55:11 +00:00 committed by Kaveh Ghazi
parent 78fbdbf748
commit e49a1d2e07
5 changed files with 23 additions and 9 deletions
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12
gcc/ChangeLog
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@ -1,3 +1,15 @@
2000-08-14 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* cse.c (fold_rtx): Avoid empty body in an if-statement.
* doloop.c (doloop_iterations_max, doloop_modify): Avoid using the
`U' integer constant suffix.
* dwarf2out.c (add_subscript_info): Avoid empty body in an
else-statement.
* sparc/sol2.h (__enable_execute_stack): Prototype.
2000-08-14 David Edelsohn <edelsohn@gnu.org>
* collect2.c: Remove use of AIX import file.

1
gcc/config/sparc/sol2.h
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@ -255,6 +255,7 @@ static void check_enabling(void) \
need_enable_exec_stack = 1; \
} \
\
extern void __enable_execute_stack (void *); \
void \
__enable_execute_stack (addr) \
void *addr; \

2
gcc/cse.c
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@ -3646,7 +3646,7 @@ fold_rtx (x, insn)
if (fmt[i] == 'E')
/* Don't try to fold inside of a vector of expressions.
Doing nothing is harmless. */
;
{;}
}
/* If a commutative operation, place a constant integer as the second

15
gcc/doloop.c
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@ -197,7 +197,7 @@ doloop_iterations_max (loop_info, mode, nonneg)
if (GET_CODE (max_value) == CONST_INT)
umax = INTVAL (max_value);
else
umax = (2U << (GET_MODE_BITSIZE (mode) - 1)) - 1;
umax = ((unsigned)2 << (GET_MODE_BITSIZE (mode) - 1)) - 1;
n_iterations_max = umax - umin;
break;
@ -212,12 +212,12 @@ doloop_iterations_max (loop_info, mode, nonneg)
if (GET_CODE (min_value) == CONST_INT)
smin = INTVAL (min_value);
else
smin = -(1U << (GET_MODE_BITSIZE (mode) - 1));
smin = -((unsigned)1 << (GET_MODE_BITSIZE (mode) - 1));
if (GET_CODE (max_value) == CONST_INT)
smax = INTVAL (max_value);
else
smax = (1U << (GET_MODE_BITSIZE (mode) - 1)) - 1;
smax = ((unsigned)1 << (GET_MODE_BITSIZE (mode) - 1)) - 1;
n_iterations_max = smax - smin;
break;
@ -230,7 +230,7 @@ doloop_iterations_max (loop_info, mode, nonneg)
else
/* We need to conservatively assume that we might have the maximum
number of iterations without any additional knowledge. */
n_iterations_max = (2U << (GET_MODE_BITSIZE (mode) - 1)) - 1;
n_iterations_max = ((unsigned)2 << (GET_MODE_BITSIZE (mode) - 1)) - 1;
break;
default:
@ -241,8 +241,9 @@ doloop_iterations_max (loop_info, mode, nonneg)
/* If we know that the iteration count is non-negative then adjust
n_iterations_max if it is so large that it appears negative. */
if (nonneg && n_iterations_max > (1U << (GET_MODE_BITSIZE (mode) - 1)))
n_iterations_max = (1U << (GET_MODE_BITSIZE (mode) - 1)) - 1;
if (nonneg
&& n_iterations_max > ((unsigned)1 << (GET_MODE_BITSIZE (mode) - 1)))
n_iterations_max = ((unsigned)1 << (GET_MODE_BITSIZE (mode) - 1)) - 1;
return n_iterations_max;
}
@ -451,7 +452,7 @@ doloop_modify (loop, iterations, iterations_max,
/* Determine if the iteration counter will be non-negative.
Note that the maximum value loaded is iterations_max - 1. */
if ((unsigned HOST_WIDE_INT) INTVAL (iterations_max)
<= (1U << (GET_MODE_BITSIZE (GET_MODE (counter_reg)) - 1)))
<= ((unsigned)1 << (GET_MODE_BITSIZE (GET_MODE (counter_reg)) - 1)))
nonneg = 1;
break;

2
gcc/dwarf2out.c
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@ -7566,7 +7566,7 @@ add_subscript_info (type_die, type)
/* We have an array type with an unspecified length. The DWARF-2
spec does not say how to handle this; let's just leave out the
bounds. */
;
{;}
#ifndef MIPS_DEBUGGING_INFO
}