llvm-project/llvm/test/Transforms/LoopUnroll/2004-05-13-DontUnrollTooMuc...

15 lines
427 B
LLVM

; RUN: opt < %s -loop-unroll -disable-output
define i32 @main() {
entry:
br label %no_exit
no_exit: ; preds = %no_exit, %entry
%indvar = phi i32 [ 0, %entry ], [ %indvar.next, %no_exit ] ; <i32> [#uses=1]
%indvar.next = add i32 %indvar, 1 ; <i32> [#uses=2]
%exitcond = icmp ne i32 %indvar.next, -2147483648 ; <i1> [#uses=1]
br i1 %exitcond, label %no_exit, label %loopexit
loopexit: ; preds = %no_exit
ret i32 0
}