diff options
Diffstat (limited to 'gcc/config/v850')
| -rw-r--r-- | gcc/config/v850/v850.c | 21 | ||||
| -rw-r--r-- | gcc/config/v850/v850.h | 35 |
2 files changed, 21 insertions, 35 deletions
diff --git a/gcc/config/v850/v850.c b/gcc/config/v850/v850.c index 8f8cd14..49b8e75 100644 --- a/gcc/config/v850/v850.c +++ b/gcc/config/v850/v850.c @@ -1,6 +1,6 @@ /* Subroutines for insn-output.c for NEC V850 series Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, - 2006, 2007, 2008, 2009 Free Software Foundation, Inc. + 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. Contributed by Jeff Law (law@cygnus.com). This file is part of GCC. @@ -50,6 +50,7 @@ /* Function prototypes for stupid compilers: */ static bool v850_handle_option (size_t, const char *, int); +static void v850_option_optimization (int, int); static void const_double_split (rtx, HOST_WIDE_INT *, HOST_WIDE_INT *); static int const_costs_int (HOST_WIDE_INT, int); static int const_costs (rtx, enum rtx_code); @@ -218,6 +219,9 @@ static const struct attribute_spec v850_attribute_table[] = #undef TARGET_STRICT_ARGUMENT_NAMING #define TARGET_STRICT_ARGUMENT_NAMING v850_strict_argument_naming +#undef TARGET_OPTION_OPTIMIZATION +#define TARGET_OPTION_OPTIMIZATION v850_option_optimization + struct gcc_target targetm = TARGET_INITIALIZER; /* Set the maximum size of small memory area TYPE to the value given @@ -279,6 +283,21 @@ v850_handle_option (size_t code, const char *arg, int value ATTRIBUTE_UNUSED) } } +/* Implement TARGET_OPTION_OPTIMIZATION. */ + +static void +v850_option_optimization (int level, int size ATTRIBUTE_UNUSED) +{ + if (level) + /* Note - we no longer enable MASK_EP when optimizing. This is + because of a hardware bug which stops the SLD and SST instructions + from correctly detecting some hazards. If the user is sure that + their hardware is fixed or that their program will not encounter + the conditions that trigger the bug then they can enable -mep by + hand. */ + target_flags |= MASK_PROLOG_FUNCTION; +} + /* Handle the TARGET_PASS_BY_REFERENCE target hook. Specify whether to pass the argument by reference. */ diff --git a/gcc/config/v850/v850.h b/gcc/config/v850/v850.h index 1fb87f3..9ae0784 100644 --- a/gcc/config/v850/v850.h +++ b/gcc/config/v850/v850.h @@ -1,6 +1,6 @@ /* Definitions of target machine for GNU compiler. NEC V850 series Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, - 2007, 2008, 2009 Free Software Foundation, Inc. + 2007, 2008, 2009, 2010 Free Software Foundation, Inc. Contributed by Jeff Law (law@cygnus.com). This file is part of GCC. @@ -140,39 +140,6 @@ extern struct small_memory_info small_memory[(int)SMALL_MEMORY_max]; /* Show we can debug even without a frame pointer. */ #define CAN_DEBUG_WITHOUT_FP - -/* Some machines may desire to change what optimizations are - performed for various optimization levels. This macro, if - defined, is executed once just after the optimization level is - determined and before the remainder of the command options have - been parsed. Values set in this macro are used as the default - values for the other command line options. - - LEVEL is the optimization level specified; 2 if `-O2' is - specified, 1 if `-O' is specified, and 0 if neither is specified. - - SIZE is nonzero if `-Os' is specified, 0 otherwise. - - You should not use this macro to change options that are not - machine-specific. These should uniformly selected by the same - optimization level on all supported machines. Use this macro to - enable machine-specific optimizations. - - *Do not examine `write_symbols' in this macro!* The debugging - options are not supposed to alter the generated code. */ - -#define OPTIMIZATION_OPTIONS(LEVEL,SIZE) \ -{ \ - if (LEVEL) \ - /* Note - we no longer enable MASK_EP when optimizing. This is \ - because of a hardware bug which stops the SLD and SST instructions\ - from correctly detecting some hazards. If the user is sure that \ - their hardware is fixed or that their program will not encounter \ - the conditions that trigger the bug then they can enable -mep by \ - hand. */ \ - target_flags |= MASK_PROLOG_FUNCTION; \ -} - /* Target machine storage layout */ |