diff options
Diffstat (limited to 'Changelog')
| -rw-r--r-- | Changelog | 8 |
1 files changed, 8 insertions, 0 deletions
@@ -24,6 +24,14 @@ Release 1.9, 2011-xx-xx . Conditional expressions "e1 ? e2 : e3" where e2 and e3 have different types were missing a cast to their common type. +- Support for "read-modify-write" operations over volatiles + (such as e++ or --e or e |= 1 where e has volatile type) + through a new presimplification (flag -fvolatile-rmw, "on" by default). + +- New optimization pass: Redundant Reload Elimination, which fixes up + inefficiencies introduced during the Reload pass. On x86, it increases + performance by up to 10%. On PowerPC and ARM, the effect is negligible. + - Revised handling of annotation statements. Now they come in two forms: 1. __builtin_annot("format", x1, ..., xN) (arbitrarily many arguments; no code generated, even if some |