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| author | Sanjay Patel <spatel@rotateright.com> | 2018-04-02 20:37:40 +0000 |
|---|---|---|
| committer | Sanjay Patel <spatel@rotateright.com> | 2018-04-02 20:37:40 +0000 |
| commit | 01621ff0d614c2e0417fad3fe131e27b0c95e7d2 (patch) | |
| tree | 1435c3c6ceca628312335338cbe8bf87db97389e /examples | |
| parent | 4e5dad45d623deeacfcdf60b81e1871dfeb988ee (diff) | |
[InstCombine] add folds for icmp + sub (PR36969)
(A - B) >u A --> A <u B
C <u (C - D) --> C <u D
https://rise4fun.com/Alive/e7j
Name: ugt
%sub = sub i8 %x, %y
%cmp = icmp ugt i8 %sub, %x
=>
%cmp = icmp ult i8 %x, %y
Name: ult
%sub = sub i8 %x, %y
%cmp = icmp ult i8 %x, %sub
=>
%cmp = icmp ult i8 %x, %y
This should fix:
https://bugs.llvm.org/show_bug.cgi?id=36969
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329011 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'examples')
0 files changed, 0 insertions, 0 deletions