From: Jim Wilson <wilson@gcc.gnu.org>
Date: Fri, 20 Jun 1997 21:16:32 +0000 (-0700)
Subject: (output_block_move): When loading addresses into registers,
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=a8136932ccc4b64e807b1ca476473b2a3a5545e9;p=gcc.git

(output_block_move): When loading addresses into registers,

add checks for ABI_N32 and ABI_64.

From-SVN: r14267
---

diff --git a/gcc/config/mips/mips.c b/gcc/config/mips/mips.c
index fee0408a8d0..5b65ca1fc58 100644
--- a/gcc/config/mips/mips.c
+++ b/gcc/config/mips/mips.c
@@ -2673,7 +2673,12 @@ output_block_move (insn, operands, num_regs, move_type)
   /* If we are given global or static addresses, and we would be
      emitting a few instructions, try to save time by using a
      temporary register for the pointer.  */
-  if (num_regs > 2 && (bytes > 2*align || move_type != BLOCK_MOVE_NORMAL))
+  /* ??? The SGI Irix6 assembler fails when a SYMBOL_REF is used in
+     an ldl/ldr instruction pair.  We play it safe, and always move
+     constant addresses into registers when generating N32/N64 code, just
+     in case we might emit an unaligned load instruction.  */
+  if (num_regs > 2 && (bytes > 2*align || move_type != BLOCK_MOVE_NORMAL
+		       || mips_abi == ABI_N32 || mips_abi == ABI_64))
     {
       if (CONSTANT_P (src_reg))
 	{
@@ -2768,7 +2773,6 @@ output_block_move (insn, operands, num_regs, move_type)
 	  bytes -= 8;
 	}
 
-      /* ??? Fails because of a MIPS assembler bug?  */
       else if (TARGET_64BIT && bytes >= 8)
 	{
 	  if (BYTES_BIG_ENDIAN)