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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/target.h | |
| 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/target.h')
| -rw-r--r-- | gcc/target.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/target.h b/gcc/target.h index 4d8cd01..27f5d5e 100644 --- a/gcc/target.h +++ b/gcc/target.h @@ -652,6 +652,10 @@ struct gcc_target value. */ rtx (* allocate_initial_value) (rtx x); + /* Return nonzero if evaluating UNSPEC[_VOLATILE] X might cause a trap. + FLAGS has the same meaning as in rtlanal.c: may_trap_p_1. */ + int (* unspec_may_trap_p) (const_rtx x, unsigned flags); + /* Given a register, this hook should return a parallel of registers to represent where to find the register pieces. Define this hook if the register and its mode are represented in Dwarf in |