merge GCC 4.1.1-20060602.

gnu/dist/gcc4/gcc/config.gcc

@@ -918,6 +918,7 @@ hppa[12]*-*-hpux10*)
 	fi
 	use_collect2=yes
 	use_fixproto=yes
+	gas=yes
 	;;
 hppa*64*-*-hpux11*)
 	target_cpu_default="MASK_PA_11|MASK_PA_20"
@@ -925,16 +926,9 @@ hppa*64*-*-hpux11*)
 	then
 		target_cpu_default="${target_cpu_default}|MASK_GNU_LD"
 	fi
-	if test x$gas = xyes
-	then
-		tm_file="pa/pa64-start.h ${tm_file} dbxelf.h elfos.h \
-			 pa/pa64-regs.h pa/pa-hpux.h pa/pa-hpux1010.h \
-			 pa/pa-hpux11.h"
-	else
-		tm_file="pa/pa64-start.h ${tm_file} dbxelf.h pa/elf.h \
-			 pa/pa64-regs.h pa/pa-hpux.h pa/pa-hpux1010.h \
-			 pa/pa-hpux11.h"
-	fi
+	tm_file="pa/pa64-start.h ${tm_file} dbxelf.h elfos.h \
+		 pa/pa64-regs.h pa/pa-hpux.h pa/pa-hpux1010.h \
+		 pa/pa-hpux11.h"
 	case ${target} in
 	*-*-hpux11.[1-9]*)
 		tm_file="${tm_file} pa/pa-hpux1111.h pa/pa-64.h pa/pa64-hpux.h"
@@ -961,6 +955,7 @@ hppa*64*-*-hpux11*)
 		thread_file=posix 
 		;;
 	esac
+	gas=yes
 	;;
 hppa[12]*-*-hpux11*)
 	case ${target} in
@@ -990,6 +985,7 @@ hppa[12]*-*-hpux11*)
 		;;
 	esac
 	use_collect2=yes
+	gas=yes
 	;;
 i[34567]86-*-darwin*)
 	# All the configuration is presently done generically.

gnu/dist/gcc4/gcc/config/mips/mips.c

@@ -1446,18 +1446,16 @@ mips_symbolic_address_p (enum mips_symbol_type symbol_type,
       /* The address will have to be loaded from the GOT first.  */
       return false;
 
-    case SYMBOL_TLSGD:
-    case SYMBOL_TLSLDM:
-    case SYMBOL_DTPREL:
-    case SYMBOL_TPREL:
-    case SYMBOL_GOTTPREL:
-    case SYMBOL_TLS:
-      return false;
-
     case SYMBOL_GOTOFF_PAGE:
     case SYMBOL_GOTOFF_GLOBAL:
     case SYMBOL_GOTOFF_CALL:
     case SYMBOL_GOTOFF_LOADGP:
+    case SYMBOL_TLS:
+    case SYMBOL_TLSGD:
+    case SYMBOL_TLSLDM:
+    case SYMBOL_DTPREL:
+    case SYMBOL_GOTTPREL:
+    case SYMBOL_TPREL:
     case SYMBOL_64_HIGH:
     case SYMBOL_64_MID:
     case SYMBOL_64_LOW:

gnu/dist/gcc4/gcc/config/rs6000/rs6000.c

@@ -5892,10 +5892,10 @@ rs6000_gimplify_va_arg (tree valist, tree type, tree *pre_p, tree *post_p)
       t = build1 (LABEL_EXPR, void_type_node, lab_false);
       append_to_statement_list (t, pre_p);
 
-      if (n_reg > 2)
+      if ((n_reg == 2 && reg != gpr) || n_reg > 2)
 	{
 	  /* Ensure that we don't find any more args in regs.
-	     Alignment has taken care of the n_reg == 2 case.  */
+	     Alignment has taken care of the n_reg == 2 gpr case.  */
 	  t = build (MODIFY_EXPR, TREE_TYPE (reg), reg, size_int (8));
 	  gimplify_and_add (t, pre_p);
 	}

gnu/dist/gcc4/gcc/doc/invoke.texi

@@ -4320,7 +4320,7 @@ the performance and/or code size at the expense of compilation time
 and possibly the ability to debug the program.
 
 The compiler performs optimization based on the knowledge it has of
-the program.  Optimization levels @option{-O2} and above, in
+the program.  Optimization levels @option{-O} and above, in
 particular, enable @emph{unit-at-a-time} mode, which allows the
 compiler to consider information gained from later functions in
 the file when compiling a function.  Compiling multiple files at
@@ -4361,6 +4361,7 @@ compilation time.
 -ftree-copyrename @gol
 -ftree-fre @gol
 -ftree-ch @gol
+-funit-at-a-time @gol
 -fmerge-constants}
 
 @option{-O} also turns on @option{-fomit-frame-pointer} on machines
@@ -4396,7 +4397,6 @@ also turns on the following optimization flags:
 -fstrict-aliasing @gol
 -fdelete-null-pointer-checks @gol
 -freorder-blocks  -freorder-functions @gol
--funit-at-a-time @gol
 -falign-functions  -falign-jumps @gol
 -falign-loops  -falign-labels @gol
 -ftree-vrp @gol
@@ -5344,7 +5344,7 @@ attribute @code{used} will prevent this behavior.
 As a temporary workaround, @option{-fno-unit-at-a-time} can be used,
 but this scheme may not be supported by future releases of GCC@.
 
-Enabled at levels @option{-O2}, @option{-O3}.
+Enabled at levels @option{-O}, @option{-O2}, @option{-O3}, @option{-Os}.
 
 @item -fweb
 @opindex fweb