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(parent: 01f43a4) | patch
If both parts of smul_lohi, etc. are used, don't simplify. If only one part is used...
authorEvan Cheng <evan.cheng@apple.com>
Thu, 8 Nov 2007 09:25:29 +0000 (09:25 +0000)
committerEvan Cheng <evan.cheng@apple.com>
Thu, 8 Nov 2007 09:25:29 +0000 (09:25 +0000)
commit4471194d69cc99ed53dc1638e06053b069dc6454
tree9fc48e3f90dbd0ec12756f7be9eaed0676a8b1b7tree | snapshot
parent01f43a4d551eb126731d2ae622d39ca0291965c6commit | diff
If both parts of smul_lohi, etc. are used, don't simplify. If only one part is used, try simplify it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43888 91177308-0d34-0410-b5e6-96231b3b80d8
lib/CodeGen/SelectionDAG/DAGCombiner.cpp diff | blob | history
test/CodeGen/X86/2007-11-07-MulBy4.ll [new file with mode: 0644] blob
C/C++ LLVM-based compilers that forbids OOTA behaviors