1; RUN: opt %loadPolly -polly-stmt-granularity=bb -polly-scops -analyze \ 2; RUN: -polly-invariant-load-hoisting=true < %s | FileCheck %s 3; 4; See http://research.microsoft.com/pubs/151917/divmodnote-letter.pdf 5; 6; void f(long *A) { 7; for (long i = 0; i < 10; i++) { 8; A[8 / 3] = A[8 % 3]; 9; A[8 / -3] = A[8 % -3]; 10; A[-8 / 3] = A[-8 % 3]; 11; A[-8 / -3] = A[-8 % -3]; 12; A[1 / 2] = A[1 % 2]; 13; A[1 / -2] = A[1 % -2]; 14; A[-1 / 2] = A[-1 % 2]; 15; A[-1 / -2] = A[-1 % -2]; 16; } 17; } 18; 19; CHECK: { Stmt_for_body[i0] -> MemRef_R[2] }; 20; CHECK: { Stmt_for_body[i0] -> MemRef_R[2] }; 21; CHECK: { Stmt_for_body[i0] -> MemRef_R[-2] }; 22; CHECK: { Stmt_for_body[i0] -> MemRef_R[-2] }; 23; CHECK: { Stmt_for_body[i0] -> MemRef_R[1] }; 24; CHECK: { Stmt_for_body[i0] -> MemRef_R[1] }; 25; CHECK: { Stmt_for_body[i0] -> MemRef_R[-1] }; 26; CHECK: { Stmt_for_body[i0] -> MemRef_R[-1] }; 27; CHECK: { Stmt_for_body[i0] -> MemRef_D[2] }; 28; CHECK: { Stmt_for_body[i0] -> MemRef_D[-2] }; 29; CHECK: { Stmt_for_body[i0] -> MemRef_D[-2] }; 30; CHECK: { Stmt_for_body[i0] -> MemRef_D[2] }; 31; CHECK: { Stmt_for_body[i0] -> MemRef_D[0] }; 32; CHECK: { Stmt_for_body[i0] -> MemRef_D[0] }; 33; CHECK: { Stmt_for_body[i0] -> MemRef_D[0] }; 34; CHECK: { Stmt_for_body[i0] -> MemRef_D[0] }; 35; 36target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 37 38define void @f(i64* %D, i64* %R) { 39entry: 40 br label %for.cond 41 42for.cond: ; preds = %for.inc, %entry 43 %i.0 = phi i64 [ 0, %entry ], [ %inc, %for.inc ] 44 %exitcond = icmp ne i64 %i.0, 10 45 br i1 %exitcond, label %for.body, label %for.end 46 47for.body: ; preds = %for.cond 48 %rem = srem i64 8, 3 49 %arrayidx = getelementptr inbounds i64, i64* %R, i64 %rem 50 %tmp = load i64, i64* %arrayidx, align 8 51 %div = sdiv i64 8, 3 52 %arrayidx1 = getelementptr inbounds i64, i64* %D, i64 %div 53 store i64 %tmp, i64* %arrayidx1, align 8 54 %rem2 = srem i64 8, -3 55 %arrayidx3 = getelementptr inbounds i64, i64* %R, i64 %rem2 56 %tmp1 = load i64, i64* %arrayidx3, align 8 57 %div5 = sdiv i64 8, -3 58 %arrayidx6 = getelementptr inbounds i64, i64* %D, i64 %div5 59 store i64 %tmp1, i64* %arrayidx6, align 8 60 %rem8 = srem i64 -8, 3 61 %arrayidx9 = getelementptr inbounds i64, i64* %R, i64 %rem8 62 %tmp2 = load i64, i64* %arrayidx9, align 8 63 %div11 = sdiv i64 -8, 3 64 %arrayidx12 = getelementptr inbounds i64, i64* %D, i64 %div11 65 store i64 %tmp2, i64* %arrayidx12, align 8 66 %rem15 = srem i64 -8, -3 67 %arrayidx16 = getelementptr inbounds i64, i64* %R, i64 %rem15 68 %tmp3 = load i64, i64* %arrayidx16, align 8 69 %div19 = sdiv i64 -8, -3 70 %arrayidx20 = getelementptr inbounds i64, i64* %D, i64 %div19 71 store i64 %tmp3, i64* %arrayidx20, align 8 72 %rem29 = srem i64 1, 2 73 %arrayidx30 = getelementptr inbounds i64, i64* %R, i64 %rem29 74 %tmp5 = load i64, i64* %arrayidx30, align 8 75 %div31 = sdiv i64 1, 2 76 %arrayidx32 = getelementptr inbounds i64, i64* %D, i64 %div31 77 store i64 %tmp5, i64* %arrayidx32, align 8 78 %rem34 = srem i64 1, -2 79 %arrayidx35 = getelementptr inbounds i64, i64* %R, i64 %rem34 80 %tmp6 = load i64, i64* %arrayidx35, align 8 81 %div37 = sdiv i64 1, -2 82 %arrayidx38 = getelementptr inbounds i64, i64* %D, i64 %div37 83 store i64 %tmp6, i64* %arrayidx38, align 8 84 %rem40 = srem i64 -1, 2 85 %arrayidx41 = getelementptr inbounds i64, i64* %R, i64 %rem40 86 %tmp7 = load i64, i64* %arrayidx41, align 8 87 %div43 = sdiv i64 -1, 2 88 %arrayidx44 = getelementptr inbounds i64, i64* %D, i64 %div43 89 store i64 %tmp7, i64* %arrayidx44, align 8 90 %rem47 = srem i64 -1, -2 91 %arrayidx48 = getelementptr inbounds i64, i64* %R, i64 %rem47 92 %tmp8 = load i64, i64* %arrayidx48, align 8 93 %div51 = sdiv i64 -1, -2 94 %arrayidx52 = getelementptr inbounds i64, i64* %D, i64 %div51 95 store i64 %tmp8, i64* %arrayidx52, align 8 96 br label %for.inc 97 98for.inc: ; preds = %for.body 99 %inc = add nuw nsw i64 %i.0, 1 100 br label %for.cond 101 102for.end: ; preds = %for.cond 103 ret void 104} 105