poly_int: set_inc_state

This trivial patch makes auto-inc-dec.c:set_inc_state take a poly_int64.

2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
	    Alan Hayward  <alan.hayward@arm.com>
	    David Sherwood  <david.sherwood@arm.com>

gcc/
	* auto-inc-dec.c (set_inc_state): Take the mode size as a poly_int64
	rather than an int.

Co-Authored-By: Alan Hayward <alan.hayward@arm.com>
Co-Authored-By: David Sherwood <david.sherwood@arm.com>
From-SVN: r256153

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 37737bcabd990f8757fb7fe716fc3eb6df51f17b..660d354e49abf1cd1d1b9a4677b415ed9bb69f82 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
+           Alan Hayward  <alan.hayward@arm.com>
+           David Sherwood  <david.sherwood@arm.com>
+
+       * auto-inc-dec.c (set_inc_state): Take the mode size as a poly_int64
+       rather than an int.
+
 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

diff --git a/gcc/auto-inc-dec.c b/gcc/auto-inc-dec.c
index db1bd5bba2cee9fbf24d6d522505ac292688aab9..93d97f0cd52f4fd1ad136082053b39ad7170e23c 100644 (file)
--- a/gcc/auto-inc-dec.c
+++ b/gcc/auto-inc-dec.c
@@ -152,14 +152,14 @@ enum gen_form
 static rtx mem_tmp;
 
 static enum inc_state
-set_inc_state (HOST_WIDE_INT val, int size)
+set_inc_state (HOST_WIDE_INT val, poly_int64 size)
 {
   if (val == 0)
     return INC_ZERO;
   if (val < 0)
-    return (val == -size) ? INC_NEG_SIZE : INC_NEG_ANY;
+    return known_eq (val, -size) ? INC_NEG_SIZE : INC_NEG_ANY;
   else
-    return (val == size) ? INC_POS_SIZE : INC_POS_ANY;
+    return known_eq (val, size) ? INC_POS_SIZE : INC_POS_ANY;
 }
 
 /* The DECISION_TABLE that describes what form, if any, the increment