2021-04-28  Jakub Jelinek  <jakub@redhat.com>

	PR target/100302
	* config/aarch64/aarch64.c (aarch64_add_offset_1_temporaries): Use
	absu_hwi instead of abs_hwi.

	* gcc.target/aarch64/sve/pr100302.c: New test.

--- gcc/config/aarch64/aarch64.c.jj	2021-04-28 10:43:06.313337362 +0200
+++ gcc/config/aarch64/aarch64.c	2021-04-28 11:01:10.567243000 +0200
@@ -4736,7 +4736,7 @@ aarch64_mov128_immediate (rtx imm)
 static unsigned int
 aarch64_add_offset_1_temporaries (HOST_WIDE_INT offset)
 {
-  return abs_hwi (offset) < 0x1000000 ? 0 : 1;
+  return absu_hwi (offset) < 0x1000000 ? 0 : 1;
 }
 
 /* A subroutine of aarch64_add_offset.  Set DEST to SRC + OFFSET for
--- gcc/testsuite/gcc.target/aarch64/sve/pr100302.c.jj	2021-04-28 10:49:19.337176274 +0200
+++ gcc/testsuite/gcc.target/aarch64/sve/pr100302.c	2021-04-28 10:42:48.342537828 +0200
@@ -0,0 +1,12 @@
+/* PR target/100302 */
+/* { dg-do compile } */
+/* { dg-options "-march=armv8.2-a+sve -O1 -ftree-loop-vectorize -fno-tree-scev-cprop --param vect-partial-vector-usage=0 -fvect-cost-model=unlimited" } */
+
+long int x;
+
+void
+foo (void)
+{
+  for (x = 0; x >= 0; ++x)
+    ;
+}