Imported fixes for testsuite failures from psion branch.

From-SVN: r20560

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index f0127adfeb927573c56b48a44882388b7d4cd940..a170d27ac49d4becc6512a3e30289ad3d92bf683 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+Thu Jun 18 11:43:54 1998  Nick Clifton  <nickc@cygnus.com>
+
+       * config/arm/thumb.h (GO_IF_LEGITIMATE_ADDRESS): Disallow REG+REG 
+       addressing when one register is the frame pointer or stack
+       pointer.  Disallow REG+CONST addressing in HI mode.
+
 Thu Jun 18 17:30:39 1998  J"orn Rennecke <amylaar@cygnus.co.uk>
 
        * reload.c (find_reloads): Don't narrow scope of RELOAD_OTHER to

diff --git a/gcc/config/arm/thumb.h b/gcc/config/arm/thumb.h
index 0d3051cf0a15368af78d88a4db42db3d22604444..976fe7878306dec0a7e0d4d7936523c90543680f 100644 (file)
--- a/gcc/config/arm/thumb.h
+++ b/gcc/config/arm/thumb.h
@@ -1,5 +1,5 @@
 /* Definitions of target machine for GNU compiler, for ARM/Thumb.
-   Copyright (C) 19996, 1997, 1998 Free Software Foundation, Inc.
+   Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
    The basis of this contribution was generated by
                Richard Earnshaw, Advanced RISC Machines Ltd
 
@@ -900,8 +900,12 @@ int thumb_shiftable_const ();
       if (GET_MODE_SIZE (MODE) <= 4                                    \
          && GET_CODE (XEXP (X, 0)) == REG                              \
          && GET_CODE (XEXP (X, 1)) == REG                              \
-         && XEXP (X, 0) != frame_pointer_rtx           \
-         && XEXP (X, 1) != frame_pointer_rtx           \
+         && XEXP (X, 0) != frame_pointer_rtx                           \
+         && XEXP (X, 1) != frame_pointer_rtx                           \
+         /* CYGNUS LOCAL nickc */ \
+         && XEXP (X, 0) != virtual_stack_vars_rtx                      \
+         && XEXP (X, 1) != virtual_stack_vars_rtx                      \
+         /* END CYGNUS LOCAL */ \
          && REG_OK_FOR_INDEX_P (XEXP (X, 0))                           \
          && REG_OK_FOR_INDEX_P (XEXP (X, 1)))                          \
        goto WIN;                                                       \
@@ -909,6 +913,9 @@ int thumb_shiftable_const ();
       else if (GET_CODE (XEXP (X, 0)) == REG                           \
               && (REG_OK_FOR_INDEX_P (XEXP (X, 0))                     \
                   || XEXP (X, 0) == arg_pointer_rtx)                   \
+              /* CYGNUS LOCAL nickc */ \
+              && GET_MODE_SIZE (MODE) != 2                             \
+              /* END CYGNUS LOCAL */ \
               && GET_CODE (XEXP (X, 1)) == CONST_INT                   \
               && LEGITIMATE_OFFSET (MODE, INTVAL (XEXP (X, 1))))       \
        goto WIN;                                                       \

diff --git a/gcc/config/arm/thumb.md b/gcc/config/arm/thumb.md
index 2334aa1b10c501a2e882cf0ddb4672d37e66713e..65b92cec3e930b7e363519a554589cd5c96c9703 100644 (file)
--- a/gcc/config/arm/thumb.md
+++ b/gcc/config/arm/thumb.md
@@ -1,5 +1,5 @@
 ;; thumb.md    Machine description for ARM/Thumb processors
-;; Copyright (C) 19996, 1997, 1998 Free Software Foundation, Inc.
+;; Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
 ;; The basis of this contribution was generated by
 ;;             Richard Earnshaw, Advanced RISC Machines Ltd