From af7476b83de4f3072debb9e4638360274db0351a Mon Sep 17 00:00:00 2001 From: Joern Rennecke Date: Sat, 10 Dec 2011 09:40:02 +0000 Subject: epiphany.h (USE_LOAD_POST_INCREMENT): Define. * config/epiphany/epiphany.h (USE_LOAD_POST_INCREMENT): Define. (USE_LOAD_POST_DECREMENT, USE_STORE_POST_INCREMENT): Likewise. (USE_STORE_POST_DECREMENT): Likewise. From-SVN: r182185 --- gcc/ChangeLog | 6 ++++++ gcc/config/epiphany/epiphany.h | 15 +++++++++++++++ 2 files changed, 21 insertions(+) (limited to 'gcc') diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 7d29091..5113f16 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2011-12-10 Joern Rennecke + + * config/epiphany/epiphany.h (USE_LOAD_POST_INCREMENT): Define. + (USE_LOAD_POST_DECREMENT, USE_STORE_POST_INCREMENT): Likewise. + (USE_STORE_POST_DECREMENT): Likewise. + 2011-12-10 Nathan Sidwell PR gcov-profile/51449 diff --git a/gcc/config/epiphany/epiphany.h b/gcc/config/epiphany/epiphany.h index 9d03ee9..08b121b 100644 --- a/gcc/config/epiphany/epiphany.h +++ b/gcc/config/epiphany/epiphany.h @@ -602,6 +602,21 @@ typedef struct GTY (()) machine_function #define HAVE_POST_MODIFY_DISP TARGET_POST_MODIFY #define HAVE_POST_MODIFY_REG TARGET_POST_MODIFY +/* Currently, the only users of the USE_*CREMENT macros are + move_by_pieces / store_by_pieces_1 . We don't want them to use + POST_MODIFY modes, because we got ample addressing range for the + reg+offset addressing mode; besides, there are short index+offset loads, + but the only short post-modify load uses POST_MODIFY_REG. + Moreover, using auto-increment in move_by_pieces from structure copying + in the prologue causes confused debug output. + If another pass starts using these macros where the use of these + addressing modes would make more sense, we can try checking the + current pass. */ +#define USE_LOAD_POST_INCREMENT(MODE) 0 +#define USE_LOAD_POST_DECREMENT(MODE) 0 +#define USE_STORE_POST_INCREMENT(MODE) 0 +#define USE_STORE_POST_DECREMENT(MODE) 0 + /* Recognize any constant value that is a valid address. */ #define CONSTANT_ADDRESS_P(X) \ (GET_CODE (X) == LABEL_REF || GET_CODE (X) == SYMBOL_REF \ -- cgit v1.1