llvm-project/llvm/test/Transforms/ConstProp/div-zero.ll

13 lines
333 B
LLVM

; RUN: opt < %s -instcombine -S | grep "ret i32 0"
; PR4424
declare void @ext()
define i32 @foo(i32 %ptr) {
entry:
%zero = sub i32 %ptr, %ptr ; <i32> [#uses=1]
%div_zero = sdiv i32 %zero, ptrtoint (i32* getelementptr (i32* null,
i32 1) to i32) ; <i32> [#uses=1]
ret i32 %div_zero
}