diff options
| author | Anders Carlsson <andersca@mac.com> | 2011-01-23 20:31:00 +0000 |
|---|---|---|
| committer | Anders Carlsson <andersca@mac.com> | 2011-01-23 20:31:00 +0000 |
| commit | 773bc67efffd2238eea85ffe2d2b192aed78fb79 (patch) | |
| tree | f3027db27efbd460cb7f828514634750a6570dba /llvm/lib | |
| parent | d4192f71b5eeb482b4e0a32cb2099f89a5165142 (diff) | |
| download | bcm5719-llvm-773bc67efffd2238eea85ffe2d2b192aed78fb79.tar.gz bcm5719-llvm-773bc67efffd2238eea85ffe2d2b192aed78fb79.zip | |
Add a memset loop that LoopIdiomRecognize doesn't recognize.
llvm-svn: 124082
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/README.txt | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/llvm/lib/Target/README.txt b/llvm/lib/Target/README.txt index 67aec852fa0..ea9bc8d84c8 100644 --- a/llvm/lib/Target/README.txt +++ b/llvm/lib/Target/README.txt @@ -289,6 +289,14 @@ unsigned int popcount(unsigned int input) { This sort of thing should be added to the loop idiom pass. +This loop isn't converted to a memset: + +void f(char *dest, int n) { + for (int i = 0; i < n; ++i) { + dest[n] = 0; + } +} + //===---------------------------------------------------------------------===// These should turn into single 16-bit (unaligned?) loads on little/big endian |
