ruby.git/test/coverage, branch ruby_2_7

compile.c: stop wrong peephole optimization when covearge is enabled

2019-12-04T01:40:54+00:00

jump-jump optimization ignores the event flags of the jump instruction
being skipped, which leads to overlook of line events.

This changeset stops the wrong optimization when coverage measurement is
neabled and when the jump instruction has any event flag.

Note that this issue is not only for coverage but also for TracePoint,
and this change does not fix TracePoint.
However, fixing it fundamentally is tough (which requires revamp of
the compiler).  This issue is critical in terms of coverage measurement,
but minor for TracePoint (ko1 said), so we here choose a stopgap
measurement.

[Bug #15980] [Bug #16397]

Note for backporters: this changeset can be viewed by `git diff -w`.

Introduce pattern matching [EXPERIMENTAL]

2019-04-17T06:48:03+00:00

[ruby-core:87945] [Feature #14912]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67586 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

Revert r63383, r63248 "compile.c: copy a short insn with leave"

2019-02-01T05:11:08+00:00

When copying `leave` insn, TRACE also should be copied if it is
present, but this optimization is trivial and not worth the
complexity.  [ruby-core:91366] [Bug #15578]

4cae5353c03009beb1e0a1619422072773580609
5afd479de63b6609ddcd1510da94d2c1ac384f7f

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66977 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

compile.c (iseq_set_sequence): fix branch coverage table

2019-01-01T03:03:17+00:00

Not only TRACE_ELEMENT but also INSN_ELEMENT may have events.
The old pc2branchindex was created using only events of TRACE_ELEMENTs.
This change uses events of INSN_ELEMENTs too for pc2branchindex table.

[Bug #15476]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66676 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

compile.c: support branch coverage for `a&.foo = 1`

2019-01-01T01:50:57+00:00

[Bug #15475]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66674 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

Revert r66670 because of wrong ticket number

2019-01-01T01:47:14+00:00

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66672 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

compile.c: support branch coverage for `a&.foo = 1`

2019-01-01T01:41:23+00:00

[Bug #15476]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66670 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ext/coverage/lib/coverage.rb (Coverage.line_stub): use only line events

2018-12-20T10:17:37+00:00

It wrongly used all linenos of ISeq#trace_points which includes not only
line events but also call, return, and other events.  So, the result
included some linenos that can not be covered at all by line coverage.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66468 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ext/coverage/: add the oneshot mode

2018-10-20T05:33:04+00:00

This patch introduces "oneshot_lines" mode for `Coverage.start`, which
checks "whether each line was executed at least once or not", instead of
"how many times each line was executed".  A hook for each line is fired
at most once, and after it is fired, the hook flag was removed; it runs
with zero overhead.

See [Feature #15022] in detail.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65195 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

compile.c: remove tracecoverage instruction for line coverage

2018-08-22T11:09:47+00:00

Line coverage was based on special instruction "tracecoverage".
Now, instead, it uses the mechanism of trace hook [Feature #14104].

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64509 b2dd03c8-39d4-4d8f-98ff-823fe69b080e