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author | normal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2014-07-14 07:06:26 +0000 |
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committer | normal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2014-07-14 07:06:26 +0000 |
commit | e91ae784bc91f5084e617d3a3e00ebd75162427b (patch) | |
tree | 59c1e9e17d0a2397c64ba96e4af09928684c7d7a /iseq.h | |
parent | 944afa18a1973d0db13c320eaefee81d08c5cb4c (diff) |
vm_core.h (struct rb_iseq_struct): reduce to 296 bytes on 64-bit
Most iseq do not have a catch_table, so avoid needlessly adding
4-8 bytes to the struct for the common case.
Changes from v2:
- iseq_catch_table_size removed, use if (...) for (;...;)
Changes from v1:
- renamed iseq->_catch_table to iseq->catch_table
- iseq_catch_table_bytes: made a static inline function
- iseq_catch_table_size: new function replaces the
iseq_catch_table_each iterator macro
* iseq.h (struct iseq_catch_table): new flexible array struct
(iseq_catch_table_bytes): allocated size function
* vm_core.h (struct rb_iseq_struct): uupdate catch_table member
* compile.c (iseq_set_exception_table): update for struct changes
* iseq.c (iseq_free): ditto
* iseq.c (iseq_memsize): ditto
* iseq.c (rb_iseq_disasm): ditto
* iseq.c (iseq_data_to_ary): ditto
* iseq.c (rb_iseq_build_for_ruby2cext): ditto (untested)
* vm.c (vm_exec): ditto
* vm_core.h (struct rb_iseq_struct): ditto
* vm_insnhelper.c (vm_throw): ditto
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46811 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'iseq.h')
-rw-r--r-- | iseq.h | 12 |
1 files changed, 12 insertions, 0 deletions
@@ -68,6 +68,18 @@ struct iseq_catch_table_entry { unsigned long sp; }; +PACKED_STRUCT_UNALIGNED(struct iseq_catch_table { + int size; + struct iseq_catch_table_entry entries[1]; /* flexible array */ +}); + +static inline int +iseq_catch_table_bytes(int n) +{ + return sizeof(struct iseq_catch_table) + + (n - 1) * sizeof(struct iseq_catch_table_entry); +} + #define INITIAL_ISEQ_COMPILE_DATA_STORAGE_BUFF_SIZE (512) struct iseq_compile_data_storage { |