summaryrefslogtreecommitdiff
path: root/Changelog
diff options
context:
space:
mode:
authorGravatar xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e>2012-02-22 14:05:47 +0000
committerGravatar xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e>2012-02-22 14:05:47 +0000
commite1030852452c9e59045806d3306bffb14742da3b (patch)
tree075dc8dedbeaa40aab5737045950c46136bcacf5 /Changelog
parent902c3f9defe6599c20c74cf0af646e270fe91122 (diff)
Simplified and cleaned up the passing of information from C2C to PrintAsm, as well as the handling of sections.
git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1822 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
Diffstat (limited to 'Changelog')
-rw-r--r--Changelog35
1 files changed, 35 insertions, 0 deletions
diff --git a/Changelog b/Changelog
index 1b6cdcc..0f5ab97 100644
--- a/Changelog
+++ b/Changelog
@@ -1,3 +1,38 @@
+Release 1.10, 2012-02-15
+========================
+
+Improvements in confidence:
+- CompCert C now natively supports volatile types. Its semantics fully
+ specifies the meaning of volatile memory accesses. The translation
+ of volatile accesses to built-in function invocations is now proved correct.
+- CompCert C now natively supports assignment between composite types
+ (structs or unions), passing composite types by value as function
+ parameters, and other instances of composites used as r-values, with
+ the exception of returning composites by value from a function.
+ (The latter remains emulated, using the -fstruct-return option.)
+
+Language features:
+- Support for _Bool type from ISO C99.
+
+Performance improvements:
+- Improvements in instruction selection, especially for integer casts
+ and their combinations with bitwise operations.
+- Shorter, more efficient code generated for accessing volatile global
+ variables.
+- Better code generated for && and || outside conditional tests.
+- Improved register allocation for invocations of built-ins,
+ especially for annotations.
+- In Cminor and down, make safe operators non-strict: they return Vundef
+ instead of getting stuck. This enables more optimizations.
+- Cast optimization is no longer performed by a separate pass over
+ RTL, but equivalent optimization is done during Cminor generation
+ and during instruction selection.
+
+Other improvements:
+- PowerPC/EABI: uninitialized global variables now go in common (bss) section.
+- PowerPC: work around limited excursion of conditional branch instructions.
+
+
Release 1.9.1, 2011-11-28
=========================