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; RUN: llc -march=arc < %s | FileCheck %s
; CHECK-LABEL: copy
; CHECK-NOT: add
define void @copy(i8* inreg nocapture %p, i8* inreg nocapture readonly %q) {
entry:
br label %while.cond
while.cond: ; preds = %while.cond, %entry
%p.addr.0 = phi i8* [ %p, %entry ], [ %incdec.ptr1, %while.cond ]
%q.addr.0 = phi i8* [ %q, %entry ], [ %incdec.ptr, %while.cond ]
%incdec.ptr = getelementptr inbounds i8, i8* %q.addr.0, i32 1
%0 = load i8, i8* %q.addr.0, align 1
%incdec.ptr1 = getelementptr inbounds i8, i8* %p.addr.0, i32 1
store i8 %0, i8* %p.addr.0, align 1
%tobool = icmp eq i8 %0, 0
br i1 %tobool, label %while.end, label %while.cond
while.end: ; preds = %while.cond
ret void
}
%struct._llist = type { %struct._llist*, %struct._llist*, i32 }
; CHECK-LABEL: neg1
; CHECK-NOT: std.ab
define void @neg1(i8* inreg nocapture %a, i8* inreg nocapture readonly %b, i32 inreg %n) {
entry:
%cmp6 = icmp sgt i32 %n, 0
br i1 %cmp6, label %for.body, label %for.cond.cleanup
for.cond.cleanup:
ret void
for.body:
%i.07 = phi i32 [ %inc, %for.body ], [ 0, %entry ]
%arrayidx = getelementptr inbounds i8, i8* %b, i32 %i.07
%0 = load i8, i8* %arrayidx, align 1
%mul = mul nuw nsw i32 %i.07, 257
%arrayidx1 = getelementptr inbounds i8, i8* %a, i32 %mul
store i8 %0, i8* %arrayidx1, align 1
%inc = add nuw nsw i32 %i.07, 1
%exitcond = icmp eq i32 %inc, %n
br i1 %exitcond, label %for.cond.cleanup, label %for.body
}
; CHECK-LABEL: neg2
; CHECK-NOT: st.ab
define void @neg2(%struct._llist* inreg %a, i32 inreg %n) {
entry:
%cmp13 = icmp sgt i32 %n, 0
br i1 %cmp13, label %for.body, label %for.cond.cleanup
for.cond.cleanup:
ret void
for.body:
%i.014 = phi i32 [ %inc, %for.body ], [ 0, %entry ]
%arrayidx = getelementptr inbounds %struct._llist, %struct._llist* %a, i32 %i.014
%next = getelementptr inbounds %struct._llist, %struct._llist* %arrayidx, i32 0, i32 0
store %struct._llist* %arrayidx, %struct._llist** %next, align 4
%prev = getelementptr inbounds %struct._llist, %struct._llist* %a, i32 %i.014, i32 1
store %struct._llist* %arrayidx, %struct._llist** %prev, align 4
%inc = add nuw nsw i32 %i.014, 1
%exitcond = icmp eq i32 %inc, %n
br i1 %exitcond, label %for.cond.cleanup, label %for.body
}
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