[PATCH, ARM] Fix PR target/58423

[Zhenqiang Chen]

Hi,

The patch fixes PR target/58423.

Bootstrap and no make check regression on Chromebook with ARM mode.

Is it OK for trunk?

Thanks!
-Zhenqiang

ChangeLog:
2013-09-23  Zhenqiang Chen  <zhenqiang.c...@linaro.org>

    PR target/58423
    * config/arm/arm.c (arm_emit_ldrd_pop): Attach RTX_FRAME_RELATED_P
    on INSN.


--- clean-trunk/gcc/config/arm/arm.c    2013-09-17 14:29:45.632457018 +0800
+++ pr58423/gcc/config/arm/arm.c    2013-09-18 14:34:24.708892318 +0800
@@ -17645,8 +17645,8 @@
               mem = gen_frame_mem (DImode, stack_pointer_rtx);

             tmp = gen_rtx_SET (DImode, gen_rtx_REG (DImode, j), mem);
-            RTX_FRAME_RELATED_P (tmp) = 1;
             tmp = emit_insn (tmp);
+        RTX_FRAME_RELATED_P (tmp) = 1;

             /* Generate dwarf info.  */

@@ -17674,8 +17674,8 @@
               mem = gen_frame_mem (SImode, stack_pointer_rtx);

             tmp = gen_rtx_SET (SImode, gen_rtx_REG (SImode, j), mem);
-            RTX_FRAME_RELATED_P (tmp) = 1;
             tmp = emit_insn (tmp);
+        RTX_FRAME_RELATED_P (tmp) = 1;

             /* Generate dwarf info.  */
             REG_NOTES (tmp) = alloc_reg_note (REG_CFA_RESTORE,
@@ -17699,8 +17699,9 @@
                          plus_constant (Pmode,
                                         stack_pointer_rtx,
                                         offset));
-      RTX_FRAME_RELATED_P (tmp) = 1;
-      emit_insn (tmp);
+      tmp = emit_insn (tmp);
+      arm_add_cfa_adjust_cfa_note (tmp, offset,
+                                   stack_pointer_rtx, stack_pointer_rtx);
       offset = 0;
     }

@@ -17723,6 +17724,8 @@
                               gen_rtx_REG (SImode, PC_REGNUM),
                               NULL_RTX);
       REG_NOTES (par) = dwarf;
+      arm_add_cfa_adjust_cfa_note (par, UNITS_PER_WORD,
+                   stack_pointer_rtx, stack_pointer_rtx);
     }
 }