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| author | Bob Wilson <bob.wilson@acm.org> | 2004-11-12 21:59:13 +0000 |
|---|---|---|
| committer | Bob Wilson <bob.wilson@acm.org> | 2004-11-12 21:59:13 +0000 |
| commit | 390d719fbbadef9a28883c6b7b2a187c38f13e5c (patch) | |
| tree | b0baee6e6686a16d68399df3e9baf1f0214f30eb /include/xtensa-isa.h | |
| parent | afaa92f981823c9a1ae32e6abe30aee6d61d9dd8 (diff) | |
| download | cygnal-390d719fbbadef9a28883c6b7b2a187c38f13e5c.tar.gz cygnal-390d719fbbadef9a28883c6b7b2a187c38f13e5c.tar.bz2 cygnal-390d719fbbadef9a28883c6b7b2a187c38f13e5c.zip | |
2004-11-12 Bob Wilson <bob.wilson@acm.org>
include/ChangeLog
* xtensa-isa-internal.h (xtensa_interface_internal): Add class_id.
* xtensa-isa.h (xtensa_interface_class_id): New prototype.
bfd/ChangeLog
* xtensa-isa.c (xtensa_interface_class_id): New.
gas/ChangeLog
* config/tc-xtensa.c (finish_vinsn): Clear pending instruction if
there is a conflict.
(check_t1_t2_reads_and_writes): Check for both reads and writes to
interfaces that are related as determined by xtensa_interface_class_id.
Diffstat (limited to 'include/xtensa-isa.h')
| -rw-r--r-- | include/xtensa-isa.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/xtensa-isa.h b/include/xtensa-isa.h index 2dc11b924..025e31750 100644 --- a/include/xtensa-isa.h +++ b/include/xtensa-isa.h @@ -755,6 +755,19 @@ xtensa_interface_inout (xtensa_isa isa, xtensa_interface intf); extern int xtensa_interface_has_side_effect (xtensa_isa isa, xtensa_interface intf); + +/* Some interfaces may be related such that accessing one interface + has side effects on a set of related interfaces. The interfaces + are partitioned into equivalence classes of related interfaces, and + each class is assigned a unique identifier number. This function + returns the class identifier for an interface, or XTENSA_UNDEFINED + on error. These identifiers can be compared to determine if two + interfaces are related; the specific values of the identifiers have + no particular meaning otherwise. */ + +extern int +xtensa_interface_class_id (xtensa_isa isa, xtensa_interface intf); + /* Functional Units. */ |