re PR target/23355 (size optimizer did not eliminateing useless Push and pop instruct...

	PR target/23355
	* arm.c (thumb_compute_save_reg_mask): Use similar logic to
	arm_compure_save_reg0_reg12_mask to determine when the PIC register
	must be saved.

From-SVN: r103151

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 93257ee77521efac2fb40bb4b8d076c16d87afe2..24be81187b794389d4e38b77e147197e99914406 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2005-08-15  Richard Earnshaw  <richard.earnshaw@arm.com>
+
+       PR target/23355
+       * arm.c (thumb_compute_save_reg_mask): Use similar logic to 
+       arm_compure_save_reg0_reg12_mask to determine when the PIC register
+       must be saved.
+
 2005-08-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
 
        PR middle-end/23369

diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c
index d391a5242aea3bb1742cb7dd223f8dcaa175e7f8..76f9091150eedb9f888dbaff98338b946b10dbbb 100644 (file)
--- a/gcc/config/arm/arm.c
+++ b/gcc/config/arm/arm.c
@@ -8935,11 +8935,10 @@ thumb_compute_save_reg_mask (void)
     if (regs_ever_live[reg] && !call_used_regs[reg])
       mask |= 1 << reg;
 
-  if (flag_pic && !TARGET_SINGLE_PIC_BASE)
-    mask |= (1 << PIC_OFFSET_TABLE_REGNUM);
-
-  if (TARGET_SINGLE_PIC_BASE)
-    mask &= ~(1 << arm_pic_register);
+  if (flag_pic
+      && !TARGET_SINGLE_PIC_BASE
+      && current_function_uses_pic_offset_table)
+    mask |= 1 << PIC_OFFSET_TABLE_REGNUM;
 
   /* See if we might need r11 for calls to _interwork_r11_call_via_rN().  */
   if (!frame_pointer_needed && CALLER_INTERWORKING_SLOT_SIZE > 0)