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| author | Chris Lattner <sabre@nondot.org> | 2011-05-22 18:28:46 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2011-05-22 18:28:46 +0000 |
| commit | 87943e36989bd7ac03647004272fe054191e19e7 (patch) | |
| tree | 767657143ae65056b7294e429c05b0a903554289 /lib/Target/README.txt | |
| parent | 6c9b8d3d411b0ee65263dc41d2b953fe118cf31e (diff) | |
| download | llvm-87943e36989bd7ac03647004272fe054191e19e7.tar.gz llvm-87943e36989bd7ac03647004272fe054191e19e7.tar.bz2 llvm-87943e36989bd7ac03647004272fe054191e19e7.tar.xz | |
add a note.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131863 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/README.txt')
| -rw-r--r-- | lib/Target/README.txt | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/lib/Target/README.txt b/lib/Target/README.txt index 0105ae4562..260cb5ccab 100644 --- a/lib/Target/README.txt +++ b/lib/Target/README.txt @@ -2346,3 +2346,13 @@ Note that bb1 and bb2 are the same. This doesn't happen at the IR level because one call is passing an i32 and the other is passing an i64. //===---------------------------------------------------------------------===// + +I see this sort of pattern in 176.gcc in a few places (e.g. the start of +store_bit_field). The rem should be replaced with a multiply and subtract: + + %3 = sdiv i32 %A, %B + %4 = srem i32 %A, %B + +Similarly for udiv/urem. + +//===---------------------------------------------------------------------===// |