[llvm-branch-commits] [llvm] 1939a0f - Minor ReleaseNotes fixes
Hans Wennborg via llvm-branch-commits
llvm-branch-commits at lists.llvm.org
Mon Mar 2 05:51:56 PST 2020
Author: Hans Wennborg
Date: 2020-03-02T14:35:05+01:00
New Revision: 1939a0f40c991f0cc3fb70d4408dc0959db601d3
URL: https://github.com/llvm/llvm-project/commit/1939a0f40c991f0cc3fb70d4408dc0959db601d3
DIFF: https://github.com/llvm/llvm-project/commit/1939a0f40c991f0cc3fb70d4408dc0959db601d3.diff
LOG: Minor ReleaseNotes fixes
Added:
Modified:
clang/docs/ReleaseNotes.rst
lld/docs/ReleaseNotes.rst
llvm/docs/ReleaseNotes.rst
Removed:
################################################################################
diff --git a/clang/docs/ReleaseNotes.rst b/clang/docs/ReleaseNotes.rst
index 86668d9f77eb..116b47860d8b 100644
--- a/clang/docs/ReleaseNotes.rst
+++ b/clang/docs/ReleaseNotes.rst
@@ -511,39 +511,39 @@ Static Analyzer
Undefined Behavior Sanitizer (UBSan)
------------------------------------
-- * The ``pointer-overflow`` check was extended added to catch the cases where
- a non-zero offset is applied to a null pointer, or the result of
- applying the offset is a null pointer.
-
- .. code-block:: c++
-
- #include <cstdint> // for intptr_t
-
- static char *getelementpointer_inbounds(char *base, unsigned long offset) {
- // Potentially UB.
- return base + offset;
- }
-
- char *getelementpointer_unsafe(char *base, unsigned long offset) {
- // Always apply offset. UB if base is ``nullptr`` and ``offset`` is not
- // zero, or if ``base`` is non-``nullptr`` and ``offset`` is
- // ``-reinterpret_cast<intptr_t>(base)``.
- return getelementpointer_inbounds(base, offset);
- }
-
- char *getelementpointer_safe(char *base, unsigned long offset) {
- // Cast pointer to integer, perform usual arithmetic addition,
- // and cast to pointer. This is legal.
- char *computed =
- reinterpret_cast<char *>(reinterpret_cast<intptr_t>(base) + offset);
- // If either the pointer becomes non-``nullptr``, or becomes
- // ``nullptr``, we must use ``computed`` result.
- if (((base == nullptr) && (computed != nullptr)) ||
- ((base != nullptr) && (computed == nullptr)))
- return computed;
- // Else we can use ``getelementpointer_inbounds()``.
- return getelementpointer_inbounds(base, offset);
- }
+* The ``pointer-overflow`` check was extended added to catch the cases where
+ a non-zero offset is applied to a null pointer, or the result of
+ applying the offset is a null pointer.
+
+ .. code-block:: c++
+
+ #include <cstdint> // for intptr_t
+
+ static char *getelementpointer_inbounds(char *base, unsigned long offset) {
+ // Potentially UB.
+ return base + offset;
+ }
+
+ char *getelementpointer_unsafe(char *base, unsigned long offset) {
+ // Always apply offset. UB if base is ``nullptr`` and ``offset`` is not
+ // zero, or if ``base`` is non-``nullptr`` and ``offset`` is
+ // ``-reinterpret_cast<intptr_t>(base)``.
+ return getelementpointer_inbounds(base, offset);
+ }
+
+ char *getelementpointer_safe(char *base, unsigned long offset) {
+ // Cast pointer to integer, perform usual arithmetic addition,
+ // and cast to pointer. This is legal.
+ char *computed =
+ reinterpret_cast<char *>(reinterpret_cast<intptr_t>(base) + offset);
+ // If either the pointer becomes non-``nullptr``, or becomes
+ // ``nullptr``, we must use ``computed`` result.
+ if (((base == nullptr) && (computed != nullptr)) ||
+ ((base != nullptr) && (computed == nullptr)))
+ return computed;
+ // Else we can use ``getelementpointer_inbounds()``.
+ return getelementpointer_inbounds(base, offset);
+ }
Additional Information
diff --git a/lld/docs/ReleaseNotes.rst b/lld/docs/ReleaseNotes.rst
index 8513a08e90e7..724c0097a949 100644
--- a/lld/docs/ReleaseNotes.rst
+++ b/lld/docs/ReleaseNotes.rst
@@ -92,31 +92,31 @@ MinGW Improvements
* Allow using custom .edata sections from input object files (for use
by Wine)
- (`dadc6f248868 <https://reviews.llvm.org/rGdadc6f248868>`)
+ (`dadc6f248868 <https://reviews.llvm.org/rGdadc6f248868>`_)
* Don't implicitly create import libraries unless requested
- (`6540e55067e3 <https://reviews.llvm.org/rG6540e55067e3>`)
+ (`6540e55067e3 <https://reviews.llvm.org/rG6540e55067e3>`_)
* Support merging multiple resource object files
- (`3d3a9b3b413d <https://reviews.llvm.org/rG3d3a9b3b413d>`)
+ (`3d3a9b3b413d <https://reviews.llvm.org/rG3d3a9b3b413d>`_)
and properly handle the default manifest object files that GCC can pass
- (`d581dd501381 <https://reviews.llvm.org/rGd581dd501381>`)
+ (`d581dd501381 <https://reviews.llvm.org/rGd581dd501381>`_)
* Demangle itanium symbol names in warnings/error messages
- (`a66fc1c99f3e <https://reviews.llvm.org/rGa66fc1c99f3e>`)
+ (`a66fc1c99f3e <https://reviews.llvm.org/rGa66fc1c99f3e>`_)
* Print source locations for undefined references and duplicate symbols,
if possible
- (`1d06d48bb346 <https://reviews.llvm.org/rG1d06d48bb346>`)
+ (`1d06d48bb346 <https://reviews.llvm.org/rG1d06d48bb346>`_)
and
- (`b38f577c015c <https://reviews.llvm.org/rGb38f577c015c>`)
+ (`b38f577c015c <https://reviews.llvm.org/rGb38f577c015c>`_)
* Look for more filename patterns when resolving ``-l`` options
- (`0226c35262df <https://reviews.llvm.org/rG0226c35262df>`)
+ (`0226c35262df <https://reviews.llvm.org/rG0226c35262df>`_)
* Don't error out on duplicate absolute symbols with the same value
(which can happen for the default-null symbol for weak symbols)
- (`1737cc750c46 <https://reviews.llvm.org/rG1737cc750c46>`)
+ (`1737cc750c46 <https://reviews.llvm.org/rG1737cc750c46>`_)
WebAssembly Improvements
diff --git a/llvm/docs/ReleaseNotes.rst b/llvm/docs/ReleaseNotes.rst
index 07b37fb6c195..c55c1403dbc9 100644
--- a/llvm/docs/ReleaseNotes.rst
+++ b/llvm/docs/ReleaseNotes.rst
@@ -65,7 +65,7 @@ Non-comprehensive list of changes in this release
with optimizations enabled.
* ``Callbacks`` have been added to ``CommandLine Options``. These can
- be used to validate of selectively enable other options.
+ be used to validate or selectively enable other options.
* The function attributes ``no-frame-pointer-elim`` and
``no-frame-pointer-elim-non-leaf`` have been replaced by ``frame-pointer``,
@@ -77,7 +77,7 @@ Non-comprehensive list of changes in this release
`D59918 <https://reviews.llvm.org/D59918>`_, `LLVM-Dev talk <https://youtu.be/CzWkc_JcfS0>`_).
In this release, 19
diff erent attributes are inferred, including 12 LLVM IR
attributes and 7 "abstract" attributes, such as liveness. The Attributor is
- still under heavy development and disabled by default, to enable an early run
+ still under heavy development and disabled by default; to enable an early run
pass ``-mllvm -attributor-disable=false`` to an invocation of clang.
* New matrix math intrinsics have been added to LLVM
@@ -154,33 +154,33 @@ Changes to the PowerPC Target
Optimization:
- * Improved register pressure estimates in the loop vectorizer based on type
+* Improved register pressure estimates in the loop vectorizer based on type
- * Improved the PowerPC cost model for the vectorizer
+* Improved the PowerPC cost model for the vectorizer
- * Enabled vectorization of math routines on PowerPC using MASSV (Mathematical Acceleration SubSystem) library
+* Enabled vectorization of math routines on PowerPC using MASSV (Mathematical Acceleration SubSystem) library
-compiler-rt:
+copiler-rt:
- * Added/improved conversion functions from IBM long double to 128-bit integers
+* Added/improved conversion functions from IBM long double to 128-bit integers
Codegen:
- * Optimized memory access instructions in loops (pertaining to update-form instructions and address computation)
+* Optimized memory access instructions in loops (pertaining to update-form instructions and address computation)
- * Added options to disable hoisting instructions to hotter blocks based on statically or profile-based block hotness estimates
+* Added options to disable hoisting instructions to hotter blocks based on statically or profile-based block hotness estimates
- * Code generation improvements (particularly with floating point and vector code as well as handling condition registers)
+* Code generation improvements (particularly with floating point and vector code as well as handling condition registers)
- * Various infrastructural improvements, code refactoring, and bug fixes
+* Various infrastructural improvements, code refactoring, and bug fixes
- * Optimized handling of control flow based on multiple comparison of same values
+* Optimized handling of control flow based on multiple comparison of same values
Tools:
- * llvm-readobj supports displaying file header, section headers, symbol table and relocation entries for XCOFF object files
+* llvm-readobj supports displaying file header, section headers, symbol table and relocation entries for XCOFF object files
- * llvm-objdump supports disassembling physical sections for XCOFF object files
+* llvm-objdump supports disassembling physical sections for XCOFF object files
Changes to the SystemZ Target
@@ -203,9 +203,7 @@ Changes to the SystemZ Target
Changes to the X86 Target
-------------------------
- During this release ...
-
-* Less than 128 bit vector types, v2i32, v4i16, v2i16, v8i8, v4i8, and v2i8, are
+* Less-than-128-bit vector types, v2i32, v4i16, v2i16, v8i8, v4i8, and v2i8, are
now stored in the lower bits of an xmm register and the upper bits are
undefined. Previously the elements were spread apart with undefined bits in
between them.
@@ -287,6 +285,7 @@ New Features:
than the ABI register names.
Improvements:
+
* Trap and Debugtrap now lower to RISC-V-specific trap instructions.
* LLVM IR Inline assembly now supports using ABI register names and using
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