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Chris Lattner680f6a42003-09-08 17:43:36 +00001
Reid Spencer69ccadd2006-12-02 04:23:10 +00002; RUN: llvm-upgrade < %s | llvm-as | opt -load-vn -gcse -instcombine | llvm-dis | grep sub
Chris Lattner680f6a42003-09-08 17:43:36 +00003
4int %test(int* %P) {
Chris Lattnerebd22202003-09-08 17:45:18 +00005 %X = volatile load int* %P
6 %Y = volatile load int* %P
Chris Lattner680f6a42003-09-08 17:43:36 +00007 %Z = sub int %X, %Y
8 ret int %Z
9}