forked from OSchip/llvm-project
175 lines
7.6 KiB
LLVM
175 lines
7.6 KiB
LLVM
; RUN: opt %loadPolly -basicaa -polly-scops -polly-allow-nonaffine-branches \
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; RUN: -polly-allow-nonaffine-loops=false \
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; RUN: -analyze < %s | FileCheck %s --check-prefix=INNERMOST
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; RUN: opt %loadPolly -basicaa -polly-scops -polly-allow-nonaffine-branches \
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; RUN: -polly-allow-nonaffine-loops=true \
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; RUN: -analyze < %s | FileCheck %s --check-prefix=INNERMOST
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; RUN: opt %loadPolly -basicaa -polly-scops -polly-allow-nonaffine \
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; RUN: -polly-allow-nonaffine-branches -polly-allow-nonaffine-loops=true \
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; RUN: -analyze < %s | FileCheck %s --check-prefix=ALL
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;
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; Here we have a non-affine loop (in the context of the loop nest)
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; and also a non-affine access (A[k]). While we can always model the
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; innermost loop as a SCoP of depth 1, we can overapproximate the
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; innermost loop in the whole loop nest and model A[k] as a non-affine
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; access.
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;
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; INNERMOST: Function: f
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; INNERMOST-NEXT: Region: %bb15---%bb13
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; INNERMOST-NEXT: Max Loop Depth: 1
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; INNERMOST-NEXT: Invariant Accesses: {
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; INNERMOST-NEXT: }
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; INNERMOST-NEXT: Context:
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; INNERMOST-NEXT: [p_0, p_1, p_2] -> { : 0 <= p_0 <= 2147483647 and 0 <= p_1 <= 1024 and 0 <= p_2 <= 1024 }
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; INNERMOST-NEXT: Assumed Context:
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; INNERMOST-NEXT: [p_0, p_1, p_2] -> { : }
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; INNERMOST-NEXT: Invalid Context:
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; INNERMOST-NEXT: [p_0, p_1, p_2] -> { : 1 = 0 }
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; INNERMOST-NEXT: p0: {0,+,{0,+,1}<nuw><nsw><%bb11>}<nuw><nsw><%bb13>
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; INNERMOST-NEXT: p1: {0,+,1}<nuw><nsw><%bb11>
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; INNERMOST-NEXT: p2: {0,+,1}<nuw><nsw><%bb13>
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; INNERMOST-NEXT: Arrays {
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; INNERMOST-NEXT: i32 MemRef_A[*]; // Element size 4
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; INNERMOST-NEXT: i64 MemRef_indvars_iv_next6; // Element size 8
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; INNERMOST-NEXT: i32 MemRef_indvars_iv_next4; // Element size 4
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; INNERMOST-NEXT: }
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; INNERMOST-NEXT: Arrays (Bounds as pw_affs) {
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; INNERMOST-NEXT: i32 MemRef_A[*]; // Element size 4
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; INNERMOST-NEXT: i64 MemRef_indvars_iv_next6; // Element size 8
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; INNERMOST-NEXT: i32 MemRef_indvars_iv_next4; // Element size 4
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; INNERMOST-NEXT: }
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; INNERMOST-NEXT: Alias Groups (0):
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; INNERMOST-NEXT: n/a
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; INNERMOST-NEXT: Statements {
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; INNERMOST-NEXT: Stmt_bb16
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; INNERMOST-NEXT: Domain :=
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; INNERMOST-NEXT: [p_0, p_1, p_2] -> { Stmt_bb16[i0] : 0 <= i0 < p_0 };
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; INNERMOST-NEXT: Schedule :=
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; INNERMOST-NEXT: [p_0, p_1, p_2] -> { Stmt_bb16[i0] -> [0, i0] };
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; INNERMOST-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
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; INNERMOST-NEXT: [p_0, p_1, p_2] -> { Stmt_bb16[i0] -> MemRef_A[p_1] };
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; INNERMOST-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
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; INNERMOST-NEXT: [p_0, p_1, p_2] -> { Stmt_bb16[i0] -> MemRef_A[p_2] };
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; INNERMOST-NEXT: ReadAccess := [Reduction Type: +] [Scalar: 0]
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; INNERMOST-NEXT: [p_0, p_1, p_2] -> { Stmt_bb16[i0] -> MemRef_A[i0] };
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; INNERMOST-NEXT: MustWriteAccess := [Reduction Type: +] [Scalar: 0]
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; INNERMOST-NEXT: [p_0, p_1, p_2] -> { Stmt_bb16[i0] -> MemRef_A[i0] };
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; INNERMOST-NEXT: Stmt_bb26
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; INNERMOST-NEXT: Domain :=
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; INNERMOST-NEXT: [p_0, p_1, p_2] -> { Stmt_bb26[] };
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; INNERMOST-NEXT: Schedule :=
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; INNERMOST-NEXT: [p_0, p_1, p_2] -> { Stmt_bb26[] -> [1, 0] };
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; INNERMOST-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]
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; INNERMOST-NEXT: [p_0, p_1, p_2] -> { Stmt_bb26[] -> MemRef_indvars_iv_next6[] };
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; INNERMOST-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]
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; INNERMOST-NEXT: [p_0, p_1, p_2] -> { Stmt_bb26[] -> MemRef_indvars_iv_next4[] };
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; INNERMOST-NEXT: }
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; ALL: Function: f
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; ALL-NEXT: Region: %bb11---%bb29
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; ALL-NEXT: Max Loop Depth: 2
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; ALL-NEXT: Invariant Accesses: {
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; ALL-NEXT: }
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; ALL-NEXT: Context:
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; ALL-NEXT: { : }
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; ALL-NEXT: Assumed Context:
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; ALL-NEXT: { : }
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; ALL-NEXT: Invalid Context:
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; ALL-NEXT: { : 1 = 0 }
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; ALL-NEXT: Arrays {
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; ALL-NEXT: i32 MemRef_A[*]; // Element size 4
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; ALL-NEXT: }
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; ALL-NEXT: Arrays (Bounds as pw_affs) {
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; ALL-NEXT: i32 MemRef_A[*]; // Element size 4
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; ALL-NEXT: }
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; ALL-NEXT: Alias Groups (0):
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; ALL-NEXT: n/a
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; ALL-NEXT: Statements {
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; ALL-NEXT: Stmt_bb15__TO__bb25
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; ALL-NEXT: Domain :=
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; ALL-NEXT: { Stmt_bb15__TO__bb25[i0, i1] : 0 <= i0 <= 1023 and 0 <= i1 <= 1023 };
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; ALL-NEXT: Schedule :=
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; ALL-NEXT: { Stmt_bb15__TO__bb25[i0, i1] -> [i0, i1] };
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; ALL-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
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; ALL-NEXT: { Stmt_bb15__TO__bb25[i0, i1] -> MemRef_A[i0] };
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; ALL-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
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; ALL-NEXT: { Stmt_bb15__TO__bb25[i0, i1] -> MemRef_A[i1] };
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; ALL-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
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; ALL-NEXT: { Stmt_bb15__TO__bb25[i0, i1] -> MemRef_A[o0] : 0 <= o0 <= 4294967295 };
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; ALL-NEXT: MayWriteAccess := [Reduction Type: NONE] [Scalar: 0]
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; ALL-NEXT: { Stmt_bb15__TO__bb25[i0, i1] -> MemRef_A[o0] : 0 <= o0 <= 4294967295 };
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; ALL-NEXT: }
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;
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; void f(int *A) {
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; for (int i = 0; i < 1024; i++)
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; for (int j = 0; j < 1024; j++)
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; for (int k = 0; k < i * j; k++)
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; A[k] += A[i] + A[j];
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; }
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;
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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define void @f(i32* %A) {
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bb:
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br label %bb11
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bb11: ; preds = %bb28, %bb
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%indvars.iv8 = phi i64 [ %indvars.iv.next9, %bb28 ], [ 0, %bb ]
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%indvars.iv1 = phi i32 [ %indvars.iv.next2, %bb28 ], [ 0, %bb ]
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%exitcond10 = icmp ne i64 %indvars.iv8, 1024
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br i1 %exitcond10, label %bb12, label %bb29
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bb12: ; preds = %bb11
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br label %bb13
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bb13: ; preds = %bb26, %bb12
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%indvars.iv5 = phi i64 [ %indvars.iv.next6, %bb26 ], [ 0, %bb12 ]
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%indvars.iv3 = phi i32 [ %indvars.iv.next4, %bb26 ], [ 0, %bb12 ]
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%exitcond7 = icmp ne i64 %indvars.iv5, 1024
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br i1 %exitcond7, label %bb14, label %bb27
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bb14: ; preds = %bb13
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br label %bb15
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bb15: ; preds = %bb24, %bb14
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%indvars.iv = phi i64 [ %indvars.iv.next, %bb24 ], [ 0, %bb14 ]
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%lftr.wideiv = trunc i64 %indvars.iv to i32
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%exitcond = icmp ne i32 %lftr.wideiv, %indvars.iv3
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br i1 %exitcond, label %bb16, label %bb25
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bb16: ; preds = %bb15
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%tmp = getelementptr inbounds i32, i32* %A, i64 %indvars.iv8
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%tmp17 = load i32, i32* %tmp, align 4
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%tmp18 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv5
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%tmp19 = load i32, i32* %tmp18, align 4
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%tmp20 = add nsw i32 %tmp17, %tmp19
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%tmp21 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
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%tmp22 = load i32, i32* %tmp21, align 4
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%tmp23 = add nsw i32 %tmp22, %tmp20
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store i32 %tmp23, i32* %tmp21, align 4
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br label %bb24
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bb24: ; preds = %bb16
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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br label %bb15
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bb25: ; preds = %bb15
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br label %bb26
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bb26: ; preds = %bb25
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%indvars.iv.next6 = add nuw nsw i64 %indvars.iv5, 1
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%indvars.iv.next4 = add nuw nsw i32 %indvars.iv3, %indvars.iv1
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br label %bb13
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bb27: ; preds = %bb13
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br label %bb28
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bb28: ; preds = %bb27
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%indvars.iv.next9 = add nuw nsw i64 %indvars.iv8, 1
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%indvars.iv.next2 = add nuw nsw i32 %indvars.iv1, 1
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br label %bb11
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bb29: ; preds = %bb11
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ret void
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}
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