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; RUN: opt -passes='lto<O3>' -S %s | FileCheck %s
target triple = "arm64e-apple-darwin"
@A = external unnamed_addr global ptr, align 8
@B = external unnamed_addr global ptr, align 8
@C = internal unnamed_addr global i32 0, align 4
@D = external unnamed_addr global i32, align 4
; CHECK-LABEL: @fn
; CHECK: vector.body:
;
define void @fn() {
entry:
%v.D = load i32, ptr @D, align 4
store i32 %v.D, ptr @C, align 4
call void @clobber()
%v.B = load ptr, ptr @B, align 8
%v.A = load ptr, ptr @A, align 8
%v.gep.1 = load ptr, ptr %v.A, align 8
%v.gep.2 = load ptr, ptr %v.B, align 8
%cmp = icmp eq ptr %v.gep.2, null
br i1 %cmp, label %exit, label %loop
loop:
%iv = phi i32 [ 0, %entry ], [ %iv.next, %loop ]
%gep.3 = getelementptr inbounds i8, ptr %v.gep.2, i32 %iv
%v.gep.3 = load i8, ptr %gep.3, align 1
%gep.4 = getelementptr inbounds i8, ptr %v.gep.1, i32 %iv
store i8 %v.gep.3, ptr %gep.4, align 1
%iv.next = add nuw nsw i32 %iv, 1
%v.C = load i32, ptr @C, align 4
%exit.cond = icmp sgt i32 %iv, %v.C
br i1 %exit.cond, label %exit, label %loop
exit:
ret void
}
declare void @clobber()
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