PR target/34529

[pf3gnuchains/gcc-fork.git] / gcc / config / rs6000 / rs6000.c

diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index a2baf46..83d8dbd 100644 (file)
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -3365,19 +3365,17 @@ rs6000_legitimate_offset_address_p (enum machine_mode mode, rtx x, int strict)
     case V4SFmode:
     case V4SImode:
       /* AltiVec vector modes.  Only reg+reg addressing is valid and
-        constant offset zero should not occur due to canonicalization.
-        Allow any offset when not strict before reload.  */
-      return !strict;
+        constant offset zero should not occur due to canonicalization.  */
+      return false;
 
     case V4HImode:
     case V2SImode:
     case V1DImode:
     case V2SFmode:
        /* Paired vector modes.  Only reg+reg addressing is valid and
-         constant offset zero should not occur due to canonicalization.
-         Allow any offset when not strict before reload.  */
+         constant offset zero should not occur due to canonicalization.  */
       if (TARGET_PAIRED_FLOAT)
-        return !strict;
+        return false;
       /* SPE vector modes.  */
       return SPE_CONST_OFFSET_OK (offset);
 
@@ -15694,7 +15692,7 @@ rs6000_emit_prologue (void)
  
        if (spe_regs_addressable_via_sp)
          {
-           spe_save_area_ptr = sp_reg_rtx;
+           spe_save_area_ptr = frame_reg_rtx;
            spe_offset = info->spe_gp_save_offset + sp_offset;
          }
        else
@@ -15715,7 +15713,7 @@ rs6000_emit_prologue (void)
              }
  
            spe_save_area_ptr = gen_rtx_REG (Pmode, 11);
-           emit_insn (gen_addsi3 (spe_save_area_ptr, sp_reg_rtx,
+           emit_insn (gen_addsi3 (spe_save_area_ptr, frame_reg_rtx,
                                   GEN_INT (info->spe_gp_save_offset + sp_offset)));
  
            spe_offset = 0;
@@ -18383,6 +18381,11 @@ is_mem_ref (rtx pat)
   int i, j;
   bool ret = false;
 
+  /* stack_tie does not produce any real memory traffic.  */
+  if (GET_CODE (pat) == UNSPEC
+      && XINT (pat, 1) == UNSPEC_TIE)
+    return false;
+
   if (GET_CODE (pat) == MEM)
     return true;