llvm-project/llvm/test/Transforms/InstCombine/2008-07-16-fsub.ll

9 lines
195 B
LLVM

; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep sub
; PR2553
define double @test(double %X) nounwind {
; fsub of self can't be optimized away.
%Y = sub double %X, %X
ret double %Y
}