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; RUN: opt < %s -basicaa -loop-interchange -S | FileCheck %s
@A10 = local_unnamed_addr global [3 x [3 x i32]] zeroinitializer, align 16
;; Test to make sure we can handle zext intructions introduced by
;; IndVarSimplify.
;;
;; for (int i = 0; i < 2; ++i)
;; for(int j = 0; j < n; ++j) {
;; A[j][i] = i;
;; }
@A11 = local_unnamed_addr global [3 x [3 x i32]] zeroinitializer, align 16
define void @interchange_11(i32 %n) {
entry:
br label %for.cond1.preheader
for.cond.loopexit: ; preds = %for.body4
%exitcond28 = icmp ne i64 %indvars.iv.next27, 2
br i1 %exitcond28, label %for.cond1.preheader, label %for.cond.cleanup
for.cond1.preheader: ; preds = %for.cond.loopexit, %entry
%indvars.iv26 = phi i64 [ 0, %entry ], [ %indvars.iv.next27, %for.cond.loopexit ]
%indvars.iv.next27 = add nuw nsw i64 %indvars.iv26, 1
br label %for.body4
for.cond.cleanup: ; preds = %for.cond.loopexit
ret void
for.body4: ; preds = %for.body4, %for.cond1.preheader
%indvars.iv = phi i64 [ 0, %for.cond1.preheader ], [ %indvars.iv.next, %for.body4 ]
%arrayidx6 = getelementptr inbounds [3 x [3 x i32]], [3 x [3 x i32]]* @A10, i64 0, i64 %indvars.iv, i64 %indvars.iv26
%tmp = trunc i64 %indvars.iv26 to i32
store i32 %tmp, i32* %arrayidx6, align 4
%arrayidx10 = getelementptr inbounds [3 x [3 x i32]], [3 x [3 x i32]]* @A10, i64 0, i64 %indvars.iv, i64 %indvars.iv.next27
%tmp1 = trunc i64 %indvars.iv to i32
store i32 %tmp1, i32* %arrayidx10, align 4
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
%n.wide = zext i32 %n to i64
%exitcond = icmp ne i64 %indvars.iv.next, %n.wide
br i1 %exitcond, label %for.body4, label %for.cond.loopexit
}
; CHECK-LABEL: @interchange_11
; CHECK: entry:
; CHECK: br label %for.body4.preheader
; CHECK: for.cond1.preheader.preheader:
; CHECK: br label %for.cond1.preheader
; CHECK: for.cond.loopexit:
; CHECK: %exitcond28 = icmp ne i64 %indvars.iv.next27, 2
; CHECK: br i1 %exitcond28, label %for.cond1.preheader, label %for.body4.split
; CHECK: for.cond1.preheader:
; CHECK: %indvars.iv26 = phi i64 [ %indvars.iv.next27, %for.cond.loopexit ], [ 0, %for.cond1.preheader.preheader ]
; CHECK: %indvars.iv.next27 = add nuw nsw i64 %indvars.iv26, 1
; CHECK: br label %for.body4.split1
; CHECK: for.body4.preheader:
; CHECK: br label %for.body4
; CHECK: for.cond.cleanup:
; CHECK: ret void
; CHECK: for.body4:
; CHECK: %indvars.iv = phi i64 [ %indvars.iv.next, %for.body4.split ], [ 0, %for.body4.preheader ]
; CHECK: br label %for.cond1.preheader.preheader
; CHECK: for.body4.split1:
; CHECK: %arrayidx6 = getelementptr inbounds [3 x [3 x i32]], [3 x [3 x i32]]* @A10, i64 0, i64 %indvars.iv, i64 %indvars.iv26
; CHECK: %tmp = trunc i64 %indvars.iv26 to i32
; CHECK: store i32 %tmp, i32* %arrayidx6, align 4
; CHECK: br label %for.cond.loopexit
; CHECK: for.body4.split:
; CHECK: %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
; CHECK: %exitcond = icmp ne i64 %indvars.iv.next, %n.wide
; CHECK: br i1 %exitcond, label %for.body4, label %for.cond.cleanup
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