1; RUN: opt < %s -disable-output "-passes=print<da>" \ 2; RUN: "-aa-pipeline=basic-aa,globals-aa" 2>&1 | FileCheck %s 3; RUN: opt < %s -analyze -enable-new-pm=0 -basic-aa -globals-aa -da | FileCheck %s 4define void @i32_subscript(i32* %a) { 5entry: 6 br label %for.body 7 8for.body: 9 %i = phi i32 [ 0, %entry ], [ %i.inc, %for.body ] 10 %a.addr = getelementptr i32, i32* %a, i32 %i 11 %a.addr.2 = getelementptr i32, i32* %a, i32 5 12 %0 = load i32, i32* %a.addr, align 4 13 %1 = add i32 %0, 1 14 store i32 %1, i32* %a.addr.2, align 4 15 %i.inc = add nsw i32 %i, 1 16 %i.inc.ext = sext i32 %i to i64 17 %exitcond = icmp ne i64 %i.inc.ext, 100 18 br i1 %exitcond, label %for.body, label %for.end 19 20for.end: 21 ret void 22} 23; CHECK: none 24; CHECK: anti 25; CHECK: output 26 27 28; Test for a bug, which caused an assert in ScalarEvolution because 29; the Dependence Analyzer attempted to zero extend a type to a smaller 30; type. 31 32; void t(unsigned int *a, unsigned int n) { 33; for (unsigned int i = 0; i != n; i++) { 34; a[(unsigned short)i] = g; 35; }} 36 37@g = common global i32 0, align 4 38 39define void @t(i32* noalias %a, i32 %n) nounwind { 40entry: 41 %cmp1 = icmp eq i32 %n, 0 42 br i1 %cmp1, label %for.end, label %for.body 43 44for.body: 45 %i.02 = phi i32 [ %inc, %for.body ], [ 0, %entry ] 46 %0 = load i32, i32* @g, align 4 47 %idxprom = and i32 %i.02, 65535 48 %arrayidx = getelementptr inbounds i32, i32* %a, i32 %idxprom 49 store i32 %0, i32* %arrayidx, align 4 50 %inc = add i32 %i.02, 1 51 %cmp = icmp eq i32 %inc, %n 52 br i1 %cmp, label %for.end, label %for.body 53 54for.end: 55 ret void 56} 57; CHECK: input 58; CHECK: none 59; CHECK: output 60 61define void @i16_wrap(i64* %a) { 62entry: 63 br label %for.body 64for.body: 65 %i = phi i64 [0, %entry], [%i.inc, %for.inc] 66 %i.tr = trunc i64 %i to i16 67 %idx = getelementptr i64, i64* %a, i16 %i.tr 68 %0 = load i64, i64* %idx 69 %1 = add i64 %0, 1 70store i64 %1, i64* %idx 71 br label %for.inc 72 73for.inc: 74 %i.inc = add nuw i64 %i, 1 75 %cmp = icmp ult i64 %i.inc, 17179869184 76 br i1 %cmp, label %for.body, label %for.end 77for.end: 78 ret void 79} 80; CHECK: input 81; CHECK: anti 82; CHECK: output 83 84define void @i8_stride_wrap(i32* noalias %a, i32* noalias %b) { 85entry: 86 br label %for.body 87for.body: 88 %i = phi i32 [1,%entry], [%i.inc, %for.inc] 89 %i.tr = trunc i32 %i to i8 90 %idx = getelementptr i32, i32* %a, i8 %i.tr 91 %idx.2 = getelementptr i32, i32* %b, i32 %i 92 %0 = load i32, i32* %idx, align 4 93 %1 = add i32 %0, 1 94 store i32 %1, i32* %idx.2, align 4 95 br label %for.inc 96 97for.inc: 98 %i.inc = add nsw i32 %i, 256 99 %exitcond = icmp ult i32 %i, 65536 100 br i1 %exitcond, label %for.body, label %for.end 101 102for.end: 103 ret void 104} 105; CHECK: input 106; CHECK: none 107; CHECK: none 108