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| author | Richard Sandiford <richard.sandiford@arm.com> | 2023-11-11 17:28:57 +0000 |
|---|---|---|
| committer | Richard Sandiford <richard.sandiford@arm.com> | 2023-11-11 17:28:57 +0000 |
| commit | 4b803fbf839439b1deca660e32d5ced211111dfa (patch) | |
| tree | 94f0afe9e4cadef16f7e6d4c4e6f5a9ddea25f14 /gcc/target.def | |
| parent | e59ec35276599805cdc6c3979d8a167b027d286e (diff) | |
| download | gcc-4b803fbf839439b1deca660e32d5ced211111dfa.zip gcc-4b803fbf839439b1deca660e32d5ced211111dfa.tar.gz gcc-4b803fbf839439b1deca660e32d5ced211111dfa.tar.bz2 | |
mode-switching: Allow targets to set the mode for EH handlers
The mode-switching pass already had hooks to say what mode
an entity is in on entry to a function and what mode it must
be in on return. For SME, we also want to say what mode an
entity is guaranteed to be in on entry to an exception handler.
gcc/
* target.def (mode_switching.eh_handler): New hook.
* doc/tm.texi.in (TARGET_MODE_EH_HANDLER): New @hook.
* doc/tm.texi: Regenerate.
* mode-switching.cc (optimize_mode_switching): Use eh_handler
to get the mode on entry to an exception handler.
Diffstat (limited to 'gcc/target.def')
| -rw-r--r-- | gcc/target.def | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/gcc/target.def b/gcc/target.def index 3dae335..a70275b 100644 --- a/gcc/target.def +++ b/gcc/target.def @@ -7071,6 +7071,13 @@ must be defined.", int, (int entity), NULL) DEFHOOK +(eh_handler, + "If this hook is defined, it should return the mode that @var{entity} is\n\ +guaranteed to be in on entry to an exception handler, or the number of modes\n\ +if there is no such guarantee.", + int, (int entity), NULL) + +DEFHOOK (priority, "This hook specifies the order in which modes for @var{entity}\n\ are processed. 0 is the highest priority,\n\ |