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(parent: 27e656c) | patch
InstSimplify: Don't allow (x srem y) urem y -> x srem y
authorDavid Majnemer <david.majnemer@gmail.com>
Wed, 17 Sep 2014 04:16:35 +0000 (04:16 +0000)
committerDavid Majnemer <david.majnemer@gmail.com>
Wed, 17 Sep 2014 04:16:35 +0000 (04:16 +0000)
commitd5f73530dedaabeb61e534a8f4b6dd285adcab4c
tree40cf81d082e6549385610de6ef730f531929b3fbtree | snapshot
parent27e656c742a3aa73d4ff12a39467d3d56ff53eb3commit | diff
InstSimplify: Don't allow (x srem y) urem y -> x srem y

Let's consider the case where:
%x i16 = 32768
%y i16 = 384

%x srem %y = 65408
(%x srem %y) urem %y = 128

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217939 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Analysis/InstructionSimplify.cpp diff | blob | history
test/Transforms/InstSimplify/rem.ll diff | blob | history
C/C++ LLVM-based compilers that forbids OOTA behaviors