llvm/test/Transforms/InstCombine/add-sitofp.ll
Dan Gohman fe3595555a Code that checks WillNotOverflowSignedAdd before creating an Add
can safely use the NSW bit on the Add.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85164 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 22:14:22 +00:00

10 lines
219 B
LLVM

; RUN: opt < %s -instcombine -S | grep {add nsw i32}
define double @x(i32 %a, i32 %b) nounwind {
%m = lshr i32 %a, 24
%n = and i32 %m, %b
%o = sitofp i32 %n to double
%p = fadd double %o, 1.0
ret double %p
}