From: Jakub Jelinek <jakub@redhat.com>
Date: Fri, 14 Mar 2003 23:04:55 +0000 (+0100)
Subject: rs6000.c (rs6000_emit_load_toc_table): Don't call rs6000_maybe_dead if !fromprolog.
X-Git-Tag: releases/gcc-3.2.3~112
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c55acdcfe896a2452fa7fb61f66f9193fe701f97;p=thirdparty%2Fgcc.git

rs6000.c (rs6000_emit_load_toc_table): Don't call rs6000_maybe_dead if !fromprolog.

	* config/rs6000/rs6000.c (rs6000_emit_load_toc_table): Don't call
	rs6000_maybe_dead if !fromprolog.

From-SVN: r64377
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index f25b02a8f6fe..148d87e41912 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2003-03-14  Jakub Jelinek  <jakub@redhat.com>
+
+	* config/rs6000/rs6000.c (rs6000_emit_load_toc_table): Don't call
+	rs6000_maybe_dead if !fromprolog.
+
 2003-03-14  Eric Botcazou  <ebotcazou@libertysurf.fr>
 
 	PR optimization/8396
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index 521f092b3bea..80a38490fd16 100644
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -8053,7 +8053,7 @@ void
 rs6000_emit_load_toc_table (fromprolog)
      int fromprolog;
 {
-  rtx dest;
+  rtx dest, insn;
   dest = gen_rtx_REG (Pmode, RS6000_PIC_OFFSET_TABLE_REGNUM);
 
   if (TARGET_ELF && DEFAULT_ABI == ABI_V4 && flag_pic == 1)
@@ -8061,8 +8061,12 @@ rs6000_emit_load_toc_table (fromprolog)
       rtx temp = (fromprolog
 		  ? gen_rtx_REG (Pmode, LINK_REGISTER_REGNUM)
 		  : gen_reg_rtx (Pmode));
-      rs6000_maybe_dead (emit_insn (gen_load_toc_v4_pic_si (temp)));
-      rs6000_maybe_dead (emit_move_insn (dest, temp));
+      insn = emit_insn (gen_load_toc_v4_pic_si (temp));
+      if (fromprolog)
+	rs6000_maybe_dead (insn);
+      insn = emit_move_insn (dest, temp);
+      if (fromprolog)
+	rs6000_maybe_dead (insn);
     }
   else if (TARGET_ELF && DEFAULT_ABI != ABI_AIX && flag_pic == 2)
     {
@@ -8109,14 +8113,13 @@ rs6000_emit_load_toc_table (fromprolog)
 	  ASM_GENERATE_INTERNAL_LABEL (buf, "LCG", reload_toc_labelno++);
 	  symF = gen_rtx_SYMBOL_REF (Pmode, ggc_strdup (buf));
 
-	  rs6000_maybe_dead (emit_insn (gen_load_toc_v4_PIC_1b (tempLR,
-								symF,
-								tocsym)));
-	  rs6000_maybe_dead (emit_move_insn (dest, tempLR));
-	  rs6000_maybe_dead (emit_move_insn (temp0,
-					     gen_rtx_MEM (Pmode, dest)));
+	  emit_insn (gen_load_toc_v4_PIC_1b (tempLR, symF, tocsym));
+	  emit_move_insn (dest, tempLR);
+	  emit_move_insn (temp0, gen_rtx_MEM (Pmode, dest));
 	}
-      rs6000_maybe_dead (emit_insn (gen_addsi3 (dest, temp0, dest)));
+      insn = emit_insn (gen_addsi3 (dest, temp0, dest));
+      if (fromprolog)
+	rs6000_maybe_dead (insn);
     }
   else if (TARGET_ELF && !TARGET_AIX && flag_pic == 0 && TARGET_MINIMAL_TOC)
     {
@@ -8126,15 +8129,21 @@ rs6000_emit_load_toc_table (fromprolog)
       ASM_GENERATE_INTERNAL_LABEL (buf, "LCTOC", 1);
       realsym = gen_rtx_SYMBOL_REF (Pmode, ggc_strdup (buf));
 
-      rs6000_maybe_dead (emit_insn (gen_elf_high (dest, realsym)));
-      rs6000_maybe_dead (emit_insn (gen_elf_low (dest, dest, realsym)));
+      insn = emit_insn (gen_elf_high (dest, realsym));
+      if (fromprolog)
+	rs6000_maybe_dead (insn);
+      insn = emit_insn (gen_elf_low (dest, dest, realsym));
+      if (fromprolog)
+	rs6000_maybe_dead (insn);
     }
   else if (DEFAULT_ABI == ABI_AIX)
     {
       if (TARGET_32BIT)
-	rs6000_maybe_dead (emit_insn (gen_load_toc_aix_si (dest)));
+	insn = emit_insn (gen_load_toc_aix_si (dest));
       else
-	rs6000_maybe_dead (emit_insn (gen_load_toc_aix_di (dest)));
+	insn = emit_insn (gen_load_toc_aix_di (dest));
+      if (fromprolog)
+	rs6000_maybe_dead (insn);
     }
   else
     abort ();