Re: [PATCH] handling address mode changes inside extract_bit_field

[Jim Wilson]

I've got a testcase to add for this patch.  Sorry about the delay, I
took some time off to deal with a medical problem.

This was tested with and without the extract_bit_field patch.  The
testcase fails without the patch and works with the patch.

Jim

	gcc/testsuite/
	PR middle-end/79794
	* gcc.target/aarch64/pr79794.c: New.

Index: gcc/testsuite/gcc.target/aarch64/pr79794.c
===================================================================
--- gcc/testsuite/gcc.target/aarch64/pr79794.c	(nonexistent)
+++ gcc/testsuite/gcc.target/aarch64/pr79794.c	(working copy)
@@ -0,0 +1,25 @@
+/* PR middle-end/79794  */
+/* { dg-do compile } */
+/* { dg-options "-O3" } */
+/* { dg-final { scan-assembler-not "umov" } } */
+
+struct node_struct
+{
+  float _Complex gap;
+  unsigned long long state;
+};
+
+struct reg_struct
+{
+  int size;
+  struct node_struct *node;
+};
+
+void
+func(int target, struct reg_struct *reg)
+{
+  int i;
+
+  for(i=0; i<reg->size; i++)
+    reg->node[i].state ^= ((unsigned long long) 1 << target);
+}