1; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py UTC_ARGS: --version 5 2; RUN: opt < %s -disable-output "-passes=print<da>" -aa-pipeline=basic-aa 2>&1 \ 3; RUN: | FileCheck %s 4 5target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" 6target triple = "x86_64-apple-macosx10.6.0" 7 8; for (int i = 0; i < 100; ++i) { 9; int t0 = a[i][i]; 10; int t1 = t0 + 1; 11; a[i][5] = t1; 12; } 13; The subscript 5 in a[i][5] is deliberately an i32, mismatching the types of 14; other subscript. DependenceAnalysis before the fix crashed due to this 15; mismatch. 16define void @i32_subscript(ptr %a, ptr %b) { 17; CHECK-LABEL: 'i32_subscript' 18; CHECK-NEXT: Src: %0 = load i32, ptr %a.addr, align 4 --> Dst: %0 = load i32, ptr %a.addr, align 4 19; CHECK-NEXT: da analyze - none! 20; CHECK-NEXT: Src: %0 = load i32, ptr %a.addr, align 4 --> Dst: store i32 %1, ptr %a.addr.2, align 4 21; CHECK-NEXT: da analyze - anti [=|<]! 22; CHECK-NEXT: Src: store i32 %1, ptr %a.addr.2, align 4 --> Dst: store i32 %1, ptr %a.addr.2, align 4 23; CHECK-NEXT: da analyze - none! 24; 25entry: 26 br label %for.body 27 28for.body: 29 %i = phi i64 [ 0, %entry ], [ %i.inc, %for.body ] 30 %a.addr = getelementptr [100 x [100 x i32]], ptr %a, i64 0, i64 %i, i64 %i 31 %a.addr.2 = getelementptr [100 x [100 x i32]], ptr %a, i64 0, i64 %i, i32 5 32 %0 = load i32, ptr %a.addr, align 4 33 %1 = add i32 %0, 1 34 store i32 %1, ptr %a.addr.2, align 4 35 %i.inc = add nsw i64 %i, 1 36 %exitcond = icmp ne i64 %i.inc, 100 37 br i1 %exitcond, label %for.body, label %for.end 38 39for.end: 40 ret void 41} 42 43; unsigned i, j; 44; for (i = 1; i < SIZE; i++) { 45; for (j = i; j < SIZE; j++) { 46; a[i][j] = a[i+1][j-1] + 2; 47; } 48; } 49; Extends the previous example to coupled MIV subscripts. 50 51 52@a = global [10004 x [10004 x i32]] zeroinitializer, align 16 53 54; Function Attrs: nounwind uwtable 55define void @coupled_miv_type_mismatch(i32 %n) #0 { 56; CHECK-LABEL: 'coupled_miv_type_mismatch' 57; CHECK-NEXT: Src: %2 = load i32, ptr %arrayidx5, align 4 --> Dst: %2 = load i32, ptr %arrayidx5, align 4 58; CHECK-NEXT: da analyze - none! 59; CHECK-NEXT: Src: %2 = load i32, ptr %arrayidx5, align 4 --> Dst: store i32 %add6, ptr %arrayidx10, align 4 60; CHECK-NEXT: da analyze - consistent anti [1 -2]! 61; CHECK-NEXT: Src: store i32 %add6, ptr %arrayidx10, align 4 --> Dst: store i32 %add6, ptr %arrayidx10, align 4 62; CHECK-NEXT: da analyze - none! 63; 64entry: 65 br label %for.cond 66 67for.cond: ; preds = %for.inc11, %entry 68 %indvars.iv11 = phi i64 [ %indvars.iv.next12, %for.inc11 ], [ 1, %entry ] 69 %exitcond14 = icmp ne i64 %indvars.iv11, 10000 70 br i1 %exitcond14, label %for.cond1.preheader, label %for.end13 71 72for.cond1.preheader: ; preds = %for.cond 73 %0 = trunc i64 %indvars.iv11 to i32 74 br label %for.cond1 75 76for.cond1: ; preds = %for.cond1.preheader, %for.body3 77 %indvars.iv8 = phi i64 [ %indvars.iv11, %for.cond1.preheader ], [ %indvars.iv.next9, %for.body3 ] 78 %j.0 = phi i32 [ %inc, %for.body3 ], [ %0, %for.cond1.preheader ] 79 %lftr.wideiv = trunc i64 %indvars.iv8 to i32 80 %exitcond = icmp ne i32 %lftr.wideiv, 10000 81 br i1 %exitcond, label %for.body3, label %for.inc11 82 83for.body3: ; preds = %for.cond1 84 %sub = add nsw i32 %j.0, -1 85 %idxprom = zext i32 %sub to i64 86 %1 = add nuw nsw i64 %indvars.iv11, 1 87 %arrayidx5 = getelementptr inbounds [10004 x [10004 x i32]], ptr @a, i64 0, i64 %1, i64 %idxprom 88 %2 = load i32, ptr %arrayidx5, align 4 89 %add6 = add nsw i32 %2, 2 90 %arrayidx10 = getelementptr inbounds [10004 x [10004 x i32]], ptr @a, i64 0, i64 %indvars.iv11, i64 %indvars.iv8 91 store i32 %add6, ptr %arrayidx10, align 4 92 %indvars.iv.next9 = add nuw nsw i64 %indvars.iv8, 1 93 %inc = add nuw nsw i32 %j.0, 1 94 br label %for.cond1 95 96for.inc11: ; preds = %for.cond1 97 %indvars.iv.next12 = add nuw nsw i64 %indvars.iv11, 1 98 br label %for.cond 99 100for.end13: ; preds = %for.cond 101 ret void 102} 103 104attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" } 105 106!llvm.ident = !{!0} 107 108!0 = !{!"clang version 3.7.0"} 109