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| author | Paolo Bonzini <bonzini@gnu.org> | 2007-10-16 09:13:47 +0000 |
|---|---|---|
| committer | Maxim Kuvyrkov <mkuvyrkov@gcc.gnu.org> | 2007-10-16 09:13:47 +0000 |
| commit | 215b063c9d8700616d5c189cd12eef4e748de5fe (patch) | |
| tree | f33444e9bf6a5e0115d66e6ac3261973224f32ca /gcc/config/ia64 | |
| parent | 50f2fe3ad42ccf45a62d3bc899f55d5c068891ac (diff) | |
| download | gcc-215b063c9d8700616d5c189cd12eef4e748de5fe.zip gcc-215b063c9d8700616d5c189cd12eef4e748de5fe.tar.gz gcc-215b063c9d8700616d5c189cd12eef4e748de5fe.tar.bz2 | |
target.h (unspec_may_trap_p): New target hook.
2007-10-16 Paolo Bonzini <bonzini@gnu.org>
Maxim Kuvyrkov <maxim@codesourcery.com>
* target.h (unspec_may_trap_p): New target hook.
* target-def.h (TARGET_UNSPEC_MAY_TRAP_P): New macro.
* targhooks.c (default_unspec_may_trap_p): Default implementation of
the hook.
* targhooks.h (default_unspec_may_trap_p): Declare it.
* doc/tm.texi (TARGET_UNSPEC_MAY_TRAP_P): Document new hook.
* rtlanal.c (may_trap_p_1): Use new hook. Make global.
* rtl.h (may_trap_p_1): Declare.
* config/ia64/ia64.c (ia64_unspec_may_trap_p): New function to
override default hook implementation.
(TARGET_UNSPEC_MAY_TRAP_P): Override default implementation of the
hook.
* gcc.target/ia64/20040709-2.c: New test.
Co-Authored-By: Maxim Kuvyrkov <maxim@codesourcery.com>
From-SVN: r129378
Diffstat (limited to 'gcc/config/ia64')
| -rw-r--r-- | gcc/config/ia64/ia64.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/gcc/config/ia64/ia64.c b/gcc/config/ia64/ia64.c index d4ad0f4..537f9f0 100644 --- a/gcc/config/ia64/ia64.c +++ b/gcc/config/ia64/ia64.c @@ -203,6 +203,7 @@ static int ia64_arg_partial_bytes (CUMULATIVE_ARGS *, enum machine_mode, static bool ia64_function_ok_for_sibcall (tree, tree); static bool ia64_return_in_memory (const_tree, const_tree); static bool ia64_rtx_costs (rtx, int, int, int *); +static int ia64_unspec_may_trap_p (const_rtx, unsigned); static void fix_range (const char *); static bool ia64_handle_option (size_t, const char *, int); static struct machine_function * ia64_init_machine_status (void); @@ -409,6 +410,9 @@ static const struct attribute_spec ia64_attribute_table[] = #undef TARGET_ADDRESS_COST #define TARGET_ADDRESS_COST hook_int_rtx_0 +#undef TARGET_UNSPEC_MAY_TRAP_P +#define TARGET_UNSPEC_MAY_TRAP_P ia64_unspec_may_trap_p + #undef TARGET_MACHINE_DEPENDENT_REORG #define TARGET_MACHINE_DEPENDENT_REORG ia64_reorg @@ -5073,6 +5077,29 @@ ia64_secondary_reload_class (enum reg_class class, } +/* Implement targetm.unspec_may_trap_p hook. */ +static int +ia64_unspec_may_trap_p (const_rtx x, unsigned flags) +{ + if (GET_CODE (x) == UNSPEC) + { + switch (XINT (x, 1)) + { + case UNSPEC_LDA: + case UNSPEC_LDS: + case UNSPEC_LDSA: + case UNSPEC_LDCCLR: + case UNSPEC_CHKACLR: + case UNSPEC_CHKS: + /* These unspecs are just wrappers. */ + return may_trap_p_1 (XVECEXP (x, 0, 0), flags); + } + } + + return default_unspec_may_trap_p (x, flags); +} + + /* Parse the -mfixed-range= option string. */ static void |