Add CRIS atomic patterns for 1, 2, and 4 bytes.

	* config/cris/cris.c (cris_emit_trap_for_misalignment): New function.
	* config/cris/cris-protos.h: Declare it.
	* config/cris/cris.h [!TARGET_DEFAULT, TARGET_CPU_DEFAULT == 32] 
	(TARGET_DEFAULT): Add alignment by 32.
	[!TARGET_DEFAULT, TARGET_CPU_DEFAULT == 10] (TARGET_DEFAULT): New
	case, as TARGET_CPU_DEFAULT == 0 but with alignment as for
	TARGET_CPU_DEFAULT == 32. 
	(TARGET_TRAP_UNALIGNED_ATOMIC): New macro.
	* config/cris/cris.md: Include sync.md.  Avoid allocating specific
	numbers by replacing the define_constants for all UNSPECs with the
	equivalent define_c_enum construct.
	* config/cris/cris.opt (mtrap-unaligned-atomic): New option.
	* config/cris/sync.md: New file.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@188096 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 13 insertions, 11 deletions

diff --git a/gcc/config/cris/cris.md b/gcc/config/cris/cris.md
index 7d691f5a0b5..4b9d4c3986d 100644
--- a/gcc/config/cris/cris.md
+++ b/gcc/config/cris/cris.md
@@ -55,46 +55,46 @@
 ;; The movsi for a gotless symbol could be split (post reload).
 
 
-(define_constants
+(define_c_enum ""
   [
    ;; PLT reference from call expansion: operand 0 is the address,
    ;; the mode is VOIDmode.  Always wrapped in CONST.
    ;; The value is relative to the GOT.
-   (CRIS_UNSPEC_PLT_GOTREL 0)
+   CRIS_UNSPEC_PLT_GOTREL
 
    ;; PLT reference from call expansion: operand 0 is the address,
    ;; the mode is VOIDmode.  Always wrapped in CONST.
    ;; The value is relative to the PC.  It's arch-dependent whether
    ;; the offset counts from the start or the end of the current item.
-   (CRIS_UNSPEC_PLT_PCREL 1)
+   CRIS_UNSPEC_PLT_PCREL
 
    ;; The address of the global offset table as a source operand.
-   (CRIS_UNSPEC_GOT 2)
+   CRIS_UNSPEC_GOT
 
    ;; The offset from the global offset table to the operand.
-   (CRIS_UNSPEC_GOTREL 3)
+   CRIS_UNSPEC_GOTREL
 
    ;; The PC-relative offset to the operand.  It's arch-dependent whether
    ;; the offset counts from the start or the end of the current item.
-   (CRIS_UNSPEC_PCREL 4)
+   CRIS_UNSPEC_PCREL
 
    ;; The index into the global offset table of a symbol, while
    ;; also generating a GOT entry for the symbol.
-   (CRIS_UNSPEC_GOTREAD 5)
+   CRIS_UNSPEC_GOTREAD
 
    ;; Similar to CRIS_UNSPEC_GOTREAD, but also generating a PLT entry.
-   (CRIS_UNSPEC_PLTGOTREAD 6)
+   CRIS_UNSPEC_PLTGOTREAD
 
    ;; Condition for v32 casesi jump, since it needs to have if_then_else
    ;; form with register as one branch and default label as other.
    ;; Operand 0 is const_int 0.
-   (CRIS_UNSPEC_CASESI 7)
+   CRIS_UNSPEC_CASESI
 
    ;; Stack frame deallocation barrier.
-   (CRIS_UNSPEC_FRAME_DEALLOC 8)
+   CRIS_UNSPEC_FRAME_DEALLOC
 
    ;; Swap all 32 bits of the operand; 31 <=> 0, 30 <=> 1...
-   (CRIS_UNSPEC_SWAP_BITS 9)
+   CRIS_UNSPEC_SWAP_BITS
   ])
 
 ;; Register numbers.
@@ -4165,6 +4165,8 @@
 	 3 [(match_dup 0)
 	    (match_dup 1)]))]
   "")
+
+(include "sync.md")
 
 ;; Splits for all cases in side-effect insns where (possibly after reload
 ;; and register allocation) rx and ry in [rx=ry+i] are equal.