2003-09-26 Andreas Krebbel <krebbel1@de.ibm.com>

	* config/s390/s390.md ("builtin_setjmp_setup"): Insn deleted.
	("builtin_longjmp"): Insn deleted.
	("save_stack_nonlocal"): Save literal pool base pointer behind
	backchain and stack pointer.
	("restore_stack_nonlocal"): Restore literal pool base pointer.
	* config/s390/s390.h (STACK_SAVEAREA_MODE): Double size of
	the stack save area for the nonlocal goto case.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@71826 138bc75d-0d04-0410-961f-82ee72b054a4

2 files changed, 19 insertions, 44 deletions

diff --git a/gcc/config/s390/s390.h b/gcc/config/s390/s390.h
index 5cd1d46d666..b3953703223 100644
--- a/gcc/config/s390/s390.h
+++ b/gcc/config/s390/s390.h
@@ -240,7 +240,7 @@ if (INTEGRAL_MODE_P (MODE) &&	        	    	\
    NONLOCAL needs twice Pmode to maintain both backchain and SP.  */
 #define STACK_SAVEAREA_MODE(LEVEL)      \
   (LEVEL == SAVE_FUNCTION ? VOIDmode    \
-  : LEVEL == SAVE_NONLOCAL ? (TARGET_64BIT ? TImode : DImode) : Pmode)
+  : LEVEL == SAVE_NONLOCAL ? (TARGET_64BIT ? OImode : TImode) : Pmode)
 
 /* Define target floating point format.  */
 #define TARGET_FLOAT_FORMAT \
diff --git a/gcc/config/s390/s390.md b/gcc/config/s390/s390.md
index b2eff87c640..973217fba75 100644
--- a/gcc/config/s390/s390.md
+++ b/gcc/config/s390/s390.md
@@ -7057,20 +7057,9 @@
 
 
 ;
-; setjmp/longjmp instruction pattern(s).
+; setjmp instruction pattern.
 ;
 
-(define_expand "builtin_setjmp_setup"
-  [(match_operand 0 "register_operand" "")]
-  ""
-{
-  rtx base = gen_rtx_MEM (Pmode, plus_constant (operands[0], 4 * GET_MODE_SIZE (Pmode)));
-  rtx basereg = gen_rtx_REG (Pmode, BASE_REGISTER);
-
-  emit_move_insn (base, basereg);
-  DONE;
-})
-
 (define_expand "builtin_setjmp_receiver"
   [(match_operand 0 "" "")]
   "flag_pic"
@@ -7080,31 +7069,6 @@
   DONE;
 })
 
-(define_expand "builtin_longjmp"
-  [(match_operand 0 "register_operand" "")]
-  ""
-{
-  /* The elements of the buffer are, in order:  */
-  rtx fp = gen_rtx_MEM (Pmode, operands[0]);
-  rtx lab = gen_rtx_MEM (Pmode, plus_constant (operands[0], GET_MODE_SIZE (Pmode)));
-  rtx stack = gen_rtx_MEM (Pmode, plus_constant (operands[0], 2 * GET_MODE_SIZE (Pmode)));
-  rtx base = gen_rtx_MEM (Pmode, plus_constant (operands[0], 4 * GET_MODE_SIZE (Pmode)));
-  rtx basereg = gen_rtx_REG (Pmode, BASE_REGISTER);
-  rtx jmp = gen_reg_rtx (Pmode);
-
-  emit_move_insn (jmp, lab);
-  emit_move_insn (basereg, base);
-  emit_stack_restore (SAVE_NONLOCAL, stack, NULL_RTX);
-  emit_move_insn (hard_frame_pointer_rtx, fp);
-
-  emit_insn (gen_rtx_USE (VOIDmode, hard_frame_pointer_rtx));
-  emit_insn (gen_rtx_USE (VOIDmode, stack_pointer_rtx));
-  emit_insn (gen_rtx_USE (VOIDmode, basereg));
-  emit_indirect_jump (jmp);
-  DONE;
-})
-
-
 ;; These patterns say how to save and restore the stack pointer.  We need not
 ;; save the stack pointer at function level since we are careful to
 ;; preserve the backchain.  At block level, we have to restore the backchain
@@ -7144,13 +7108,17 @@
 {
   rtx temp = gen_reg_rtx (Pmode);
 
-  /* Copy the backchain to the first word, sp to the second.  */
+  /* Copy the backchain to the first word, sp to the second and the literal pool
+     base to the third. */
+  emit_move_insn (operand_subword (operands[0], 2, 0,
+                  TARGET_64BIT ? OImode : TImode),
+                  gen_rtx_REG (Pmode, BASE_REGISTER));
   emit_move_insn (temp, gen_rtx_MEM (Pmode, operands[1]));
   emit_move_insn (operand_subword (operands[0], 0, 0,
-                 TARGET_64BIT ? TImode : DImode),
+                 TARGET_64BIT ? OImode : TImode),
                  temp);
   emit_move_insn (operand_subword (operands[0], 1, 0,
-                 TARGET_64BIT ? TImode : DImode),
+                 TARGET_64BIT ? OImode : TImode),
                  operands[1]);
   DONE;
 })
@@ -7161,15 +7129,22 @@
   ""
 {
   rtx temp = gen_reg_rtx (Pmode);
+  rtx base = gen_rtx_REG (Pmode, BASE_REGISTER);
 
-  /* Restore the backchain from the first word, sp from the second.  */
+  /* Restore the backchain from the first word, sp from the second and the
+     literal pool base from the third. */
   emit_move_insn (temp,
                  operand_subword (operands[1], 0, 0,
-                 TARGET_64BIT ? TImode : DImode));
+                 TARGET_64BIT ? OImode : TImode));
   emit_move_insn (operands[0],
                  operand_subword (operands[1], 1, 0,
-                 TARGET_64BIT ? TImode : DImode));
+                 TARGET_64BIT ? OImode : TImode));
   emit_move_insn (gen_rtx_MEM (Pmode, operands[0]), temp);
+  emit_move_insn (base,
+                  operand_subword (operands[1], 2, 0,
+                  TARGET_64BIT ? OImode : TImode));
+  emit_insn (gen_rtx_USE (VOIDmode, base));
+
   DONE;
 })