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| author | Daniel Dunbar <daniel@zuster.org> | 2009-07-23 03:03:07 +0000 |
|---|---|---|
| committer | Daniel Dunbar <daniel@zuster.org> | 2009-07-23 03:03:07 +0000 |
| commit | a244814e6f8a21528e3ff1410a6db2684f5d03ed (patch) | |
| tree | 65be4d0b8b8a20de4eafdd52447f0f051da85043 /clang/lib/CodeGen | |
| parent | b1b77ca8620136567ab564223b7c7e8d8c5cd253 (diff) | |
| download | bcm5719-llvm-a244814e6f8a21528e3ff1410a6db2684f5d03ed.tar.gz bcm5719-llvm-a244814e6f8a21528e3ff1410a6db2684f5d03ed.zip | |
These IRgen improvements have been done.
Technically we could still do a bit more to avoid deferred generation of statics
which we know are used, but I seriously doubt this is important.
llvm-svn: 76844
Diffstat (limited to 'clang/lib/CodeGen')
| -rw-r--r-- | clang/lib/CodeGen/README.txt | 18 |
1 files changed, 0 insertions, 18 deletions
diff --git a/clang/lib/CodeGen/README.txt b/clang/lib/CodeGen/README.txt index f60cd03ad64..e6d61095bf2 100644 --- a/clang/lib/CodeGen/README.txt +++ b/clang/lib/CodeGen/README.txt @@ -45,21 +45,3 @@ On 176.gcc:expr.ll, it looks like over 12% of basic blocks are just direct branches! //===---------------------------------------------------------------------===// - -There are some more places where we could avoid generating unreachable code. For -example: - void f0(int a) { abort(); if (a) printf("hi"); } -still generates a call to printf. This doesn't occur much in real -code, but would still be nice to clean up. - -//===---------------------------------------------------------------------===// - -Deferred generation of statics incurs some additional -overhead. Currently it is even possible to construct test cases with -O(N^2) behavior! For at least simple cases where we can tell a global -is used, it is probably not worth deferring it. This doesn't solve the -O(N^2) cases, ,though... - -PR3810 - -//===---------------------------------------------------------------------===// |
