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| author | normal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-03-10 20:09:06 +0000 |
|---|---|---|
| committer | normal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-03-10 20:09:06 +0000 |
| commit | b02cdfe6bc7f2729df7efb14633a6fb1250e1453 (patch) | |
| tree | 1a9fea1c18286ad0a8689df70a75825a0961dcc8 | |
| parent | 81607c81b3bc24e4107c65aa8e3541163d066cf7 (diff) | |
| download | ruby-b02cdfe6bc7f2729df7efb14633a6fb1250e1453.tar.gz | |
compile.c: apply opt_str_freeze to String#-@ (uminus)
The same optimization used for "literal string".freeze
can easily apply to uminus without introducing any
compatibility problems.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57828 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
| -rw-r--r-- | bootstraptest/test_insns.rb | 1 | ||||
| -rw-r--r-- | compile.c | 3 |
2 files changed, 3 insertions, 1 deletions
diff --git a/bootstraptest/test_insns.rb b/bootstraptest/test_insns.rb index 2001e2c0ef..3a6e677885 100644 --- a/bootstraptest/test_insns.rb +++ b/bootstraptest/test_insns.rb @@ -178,6 +178,7 @@ tests = [ }, [ 'opt_str_freeze', %q{ 'true'.freeze }, ], + [ 'opt_str_freeze', %q{ -'true' }, ], [ 'opt_str_freeze', <<~'},', ], # { class String def freeze @@ -5188,7 +5188,8 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *const ret, NODE *node, int poppe * "literal".freeze -> opt_str_freeze("literal") */ if (node->nd_recv && nd_type(node->nd_recv) == NODE_STR && - node->nd_mid == idFreeze && node->nd_args == NULL && + (node->nd_mid == idFreeze || node->nd_mid == idUMinus) && + node->nd_args == NULL && ISEQ_COMPILE_DATA(iseq)->current_block == NULL && ISEQ_COMPILE_DATA(iseq)->option->specialized_instruction) { VALUE str = rb_fstring(node->nd_recv->nd_lit); |