[clang] [llvm] Update ReleaseNotes for MC/DC changes. (PR #95887)
NAKAMURA Takumi via llvm-commits
llvm-commits at lists.llvm.org
Tue Jun 18 06:22:20 PDT 2024
https://github.com/chapuni updated https://github.com/llvm/llvm-project/pull/95887
>From defd3f6b694a5091da92d925738631b8359c43bb Mon Sep 17 00:00:00 2001
From: NAKAMURA Takumi <geek4civic at gmail.com>
Date: Tue, 18 Jun 2024 11:10:14 +0900
Subject: [PATCH 1/5] Update ReleaseNotes for MC/DC changes.
---
clang/docs/ReleaseNotes.rst | 14 ++++++++++++++
llvm/docs/ReleaseNotes.rst | 7 +++++++
2 files changed, 21 insertions(+)
diff --git a/clang/docs/ReleaseNotes.rst b/clang/docs/ReleaseNotes.rst
index 36efeb8c70cca..7ef4fc21c37be 100644
--- a/clang/docs/ReleaseNotes.rst
+++ b/clang/docs/ReleaseNotes.rst
@@ -586,6 +586,20 @@ Improvements to Clang's time-trace
- Clang now specifies that using ``auto`` in a lambda parameter is a C++14 extension when
appropriate. (`#46059: <https://github.com/llvm/llvm-project/issues/46059>`_).
+Improvements to Coverage mapping
+--------------------------------
+
+- Macros defined in system headers are not expanded in coverage
+ mapping. Conditional expressions in system header macros are no
+ longer taken into account for branch coverage. They can be included
+ with ``-mllvm -system-headers-coverage``. (#78920)
+- MC/DC coverage has been improved. (#82448)
+ - The maximum number of conditions is no longer limited to 6. See
+ `this <SourceBasedCodeCoverage.html#mc-dc-instrumentation>` for
+ more details.
+ - The format of profraw generated by the runtime is not backwards
+ compatible.
+
Bug Fixes in This Version
-------------------------
- Clang's ``-Wundefined-func-template`` no longer warns on pure virtual
diff --git a/llvm/docs/ReleaseNotes.rst b/llvm/docs/ReleaseNotes.rst
index 5fdbc9f349af4..555e2632d80a0 100644
--- a/llvm/docs/ReleaseNotes.rst
+++ b/llvm/docs/ReleaseNotes.rst
@@ -70,6 +70,13 @@ Changes to the LLVM IR
records by default. Details of the change and instructions on how to update
any downstream tools and tests can be found in the `migration docs
<https://llvm.org/docs/RemoveDIsDebugInfo.html>`_.
+* Semantics of MC/DC intrinsics have been changed.
+ * ``llvm.instprof.mcdc.parameters``: 3rd argument has been changed
+ from bytes to bits.
+ * ``llvm.instprof.mcdc.condbitmap.update``: Removed.
+ * ``llvm.instprof.mcdc.tvbitmap.update``: 3rd argument has been
+ removed. The next argument has been changed from byte index to bit
+ index.
Changes to LLVM infrastructure
------------------------------
>From dc6cd31ef029f0f130a56a39701aa0ee79e6b2c9 Mon Sep 17 00:00:00 2001
From: NAKAMURA Takumi <geek4civic at gmail.com>
Date: Tue, 18 Jun 2024 21:55:20 +0900
Subject: [PATCH 2/5] Reflect feedbacks.
---
clang/docs/ReleaseNotes.rst | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/clang/docs/ReleaseNotes.rst b/clang/docs/ReleaseNotes.rst
index 7ef4fc21c37be..0b477dc9f3f2a 100644
--- a/clang/docs/ReleaseNotes.rst
+++ b/clang/docs/ReleaseNotes.rst
@@ -586,19 +586,19 @@ Improvements to Clang's time-trace
- Clang now specifies that using ``auto`` in a lambda parameter is a C++14 extension when
appropriate. (`#46059: <https://github.com/llvm/llvm-project/issues/46059>`_).
-Improvements to Coverage mapping
+Improvements to Coverage Mapping
--------------------------------
- Macros defined in system headers are not expanded in coverage
mapping. Conditional expressions in system header macros are no
longer taken into account for branch coverage. They can be included
- with ``-mllvm -system-headers-coverage``. (#78920)
-- MC/DC coverage has been improved. (#82448)
+ with ``-mllvm -system-headers-coverage``.
+ (`#78920: <https://github.com/llvm/llvm-project/issues/78920>`_)
+- MC/DC Coverage has been improved.
+ (`#82448: <https://github.com/llvm/llvm-project/pull/82448>`_)
- The maximum number of conditions is no longer limited to 6. See
`this <SourceBasedCodeCoverage.html#mc-dc-instrumentation>` for
more details.
- - The format of profraw generated by the runtime is not backwards
- compatible.
Bug Fixes in This Version
-------------------------
>From 0a537dcc5976b8dc1969d0015645c5e55cb583c7 Mon Sep 17 00:00:00 2001
From: NAKAMURA Takumi <geek4civic at gmail.com>
Date: Tue, 18 Jun 2024 22:02:36 +0900
Subject: [PATCH 3/5] Prune colons
---
clang/docs/ReleaseNotes.rst | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/clang/docs/ReleaseNotes.rst b/clang/docs/ReleaseNotes.rst
index 0b477dc9f3f2a..30b302c2220f3 100644
--- a/clang/docs/ReleaseNotes.rst
+++ b/clang/docs/ReleaseNotes.rst
@@ -593,9 +593,9 @@ Improvements to Coverage Mapping
mapping. Conditional expressions in system header macros are no
longer taken into account for branch coverage. They can be included
with ``-mllvm -system-headers-coverage``.
- (`#78920: <https://github.com/llvm/llvm-project/issues/78920>`_)
+ (`#78920 <https://github.com/llvm/llvm-project/issues/78920>`_)
- MC/DC Coverage has been improved.
- (`#82448: <https://github.com/llvm/llvm-project/pull/82448>`_)
+ (`#82448 <https://github.com/llvm/llvm-project/pull/82448>`_)
- The maximum number of conditions is no longer limited to 6. See
`this <SourceBasedCodeCoverage.html#mc-dc-instrumentation>` for
more details.
>From 8196edeb533f171c445d0328ba3f4f7eaac6e6ad Mon Sep 17 00:00:00 2001
From: NAKAMURA Takumi <geek4civic at gmail.com>
Date: Tue, 18 Jun 2024 22:11:57 +0900
Subject: [PATCH 4/5] Try to fix sphinx error
---
llvm/docs/ReleaseNotes.rst | 1 +
1 file changed, 1 insertion(+)
diff --git a/llvm/docs/ReleaseNotes.rst b/llvm/docs/ReleaseNotes.rst
index 555e2632d80a0..fdf2e7de7c6aa 100644
--- a/llvm/docs/ReleaseNotes.rst
+++ b/llvm/docs/ReleaseNotes.rst
@@ -71,6 +71,7 @@ Changes to the LLVM IR
any downstream tools and tests can be found in the `migration docs
<https://llvm.org/docs/RemoveDIsDebugInfo.html>`_.
* Semantics of MC/DC intrinsics have been changed.
+
* ``llvm.instprof.mcdc.parameters``: 3rd argument has been changed
from bytes to bits.
* ``llvm.instprof.mcdc.condbitmap.update``: Removed.
>From fdc0c58fa319664fd43ee6a1e6f72dfe0cb144ff Mon Sep 17 00:00:00 2001
From: NAKAMURA Takumi <geek4civic at gmail.com>
Date: Tue, 18 Jun 2024 22:21:56 +0900
Subject: [PATCH 5/5] Revert "Prune colons"
This reverts commit 0a537dcc5976b8dc1969d0015645c5e55cb583c7.
---
clang/docs/ReleaseNotes.rst | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/clang/docs/ReleaseNotes.rst b/clang/docs/ReleaseNotes.rst
index 30b302c2220f3..0b477dc9f3f2a 100644
--- a/clang/docs/ReleaseNotes.rst
+++ b/clang/docs/ReleaseNotes.rst
@@ -593,9 +593,9 @@ Improvements to Coverage Mapping
mapping. Conditional expressions in system header macros are no
longer taken into account for branch coverage. They can be included
with ``-mllvm -system-headers-coverage``.
- (`#78920 <https://github.com/llvm/llvm-project/issues/78920>`_)
+ (`#78920: <https://github.com/llvm/llvm-project/issues/78920>`_)
- MC/DC Coverage has been improved.
- (`#82448 <https://github.com/llvm/llvm-project/pull/82448>`_)
+ (`#82448: <https://github.com/llvm/llvm-project/pull/82448>`_)
- The maximum number of conditions is no longer limited to 6. See
`this <SourceBasedCodeCoverage.html#mc-dc-instrumentation>` for
more details.
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