[llvm-branch-commits] [llvm] 4ea0b39 - PowerPC release notes

[Hans Wennborg via llvm-branch-commits]

Author: Hans Wennborg
Date: 2020-02-10T13:06:48+01:00
New Revision: 4ea0b397582a623cdaaca97ed304002531f9575d

URL: https://github.com/llvm/llvm-project/commit/4ea0b397582a623cdaaca97ed304002531f9575d
DIFF: https://github.com/llvm/llvm-project/commit/4ea0b397582a623cdaaca97ed304002531f9575d.diff

LOG: PowerPC release notes

By Anil Mahmud.

Added: 
    

Modified: 
    llvm/docs/ReleaseNotes.rst

Removed: 
    


################################################################################
diff  --git a/llvm/docs/ReleaseNotes.rst b/llvm/docs/ReleaseNotes.rst
index 75dc29b03dd3..cca43f94a334 100644
--- a/llvm/docs/ReleaseNotes.rst
+++ b/llvm/docs/ReleaseNotes.rst
@@ -144,7 +144,29 @@ Changes to the MIPS Target
 Changes to the PowerPC Target
 -----------------------------
 
- During this release ...
+Optimization:
+
+  *  Improved register pressure estimates in the loop vectorizer based on type
+  *  Improved the PowerPC cost model for the vectorizer
+  *  Enabled vectorization of math routines on PowerPC using MASSV (Mathematical Acceleration SubSystem) library
+
+compiler-rt:
+
+  *  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)
+   *  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)
+   *  Various infrastructural improvements, code refactoring, and bug fixes
+   *  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-objdump supports disassembling physical sections for XCOFF object files
+
 
 Changes to the X86 Target
 -------------------------