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expr.c (compare_from_rtx): Call simplify_relational_operation on all comparisons...

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* expr.c (compare_from_rtx): Call simplify_relational_operation
	on all comparisons, not just those between integer constants,
	with the correct (possibly unsigned) comparison code.
	(do_compare_rtx_and_jump): Likewise.

From-SVN: r54657
This commit is contained in:
Roger Sayle 2002-06-15 20:21:22 +00:00 • committed by Roger Sayle
parent 3e1b181a67
commit 129e0ee875
2 changed files with 13 additions and 4 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2002-06-15 Roger Sayle <roger@eyesopen.com>
* expr.c (compare_from_rtx): Call simplify_relational_operation
on all comparisons, not just those between integer constants,
with the correct (possibly unsigned) comparison code.
(do_compare_rtx_and_jump): Likewise.
2002-06-15 John David Anglin <dave@hiauly1.hia.nrc.ca>
* Makefile.in (tm_defines): New configuration variable.

10
gcc/expr.c
View file

@ -10045,6 +10045,7 @@ compare_from_rtx (op0, op1, code, unsignedp, mode, size)
enum machine_mode mode;
rtx size;
{
enum rtx_code ucode;
rtx tem;
/* If one operand is constant, make it the second one. Only do this
@ -10066,8 +10067,8 @@ compare_from_rtx (op0, op1, code, unsignedp, mode, size)
do_pending_stack_adjust ();
if (GET_CODE (op0) == CONST_INT && GET_CODE (op1) == CONST_INT
&& (tem = simplify_relational_operation (code, mode, op0, op1)) != 0)
ucode = unsignedp ? unsigned_condition (code) : code;
if ((tem = simplify_relational_operation (ucode, mode, op0, op1)) != 0)
return tem;
#if 0
@ -10117,6 +10118,7 @@ do_compare_rtx_and_jump (op0, op1, code, unsignedp, mode, size,
rtx size;
rtx if_false_label, if_true_label;
{
enum rtx_code ucode;
rtx tem;
int dummy_true_label = 0;
@ -10148,8 +10150,8 @@ do_compare_rtx_and_jump (op0, op1, code, unsignedp, mode, size,
do_pending_stack_adjust ();
if (GET_CODE (op0) == CONST_INT && GET_CODE (op1) == CONST_INT
&& (tem = simplify_relational_operation (code, mode, op0, op1)) != 0)
ucode = unsignedp ? unsigned_condition (code) : code;
if ((tem = simplify_relational_operation (ucode, mode, op0, op1)) != 0)
{
if (tem == const_true_rtx)
{