1; RUN: opt < %s -analyze -basicaa -da | FileCheck %s -check-prefix=DELIN 2 3target 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" 4target triple = "x86_64-apple-macosx10.6.0" 5 6; for (int i = 0; i < 100; ++i) { 7; int t0 = a[i][i]; 8; int t1 = t0 + 1; 9; a[i][5] = t1; 10; } 11; The subscript 5 in a[i][5] is deliberately an i32, mismatching the types of 12; other subscript. DependenceAnalysis before the fix crashed due to this 13; mismatch. 14define void @i32_subscript([100 x [100 x i32]]* %a, i32* %b) { 15; DELIN-LABEL: 'Dependence Analysis' for function 'i32_subscript' 16entry: 17 br label %for.body 18 19for.body: 20; DELIN: da analyze - none! 21; DELIN: da analyze - anti [=|<]! 22; DELIN: da analyze - none! 23 %i = phi i64 [ 0, %entry ], [ %i.inc, %for.body ] 24 %a.addr = getelementptr [100 x [100 x i32]], [100 x [100 x i32]]* %a, i64 0, i64 %i, i64 %i 25 %a.addr.2 = getelementptr [100 x [100 x i32]], [100 x [100 x i32]]* %a, i64 0, i64 %i, i32 5 26 %0 = load i32, i32* %a.addr, align 4 27 %1 = add i32 %0, 1 28 store i32 %1, i32* %a.addr.2, align 4 29 %i.inc = add nsw i64 %i, 1 30 %exitcond = icmp ne i64 %i.inc, 100 31 br i1 %exitcond, label %for.body, label %for.end 32 33for.end: 34 ret void 35} 36 37target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 38target triple = "x86_64-unknown-linux-gnu" 39 40; unsigned i, j; 41; for (i = 1; i < SIZE; i++) { 42; for (j = i; j < SIZE; j++) { 43; a[i][j] = a[i+1][j-1] + 2; 44; } 45; } 46; Extends the previous example to coupled MIV subscripts. 47 48 49@a = global [10004 x [10004 x i32]] zeroinitializer, align 16 50 51; Function Attrs: nounwind uwtable 52define void @coupled_miv_type_mismatch(i32 %n) #0 { 53; DELIN-LABEL: 'Dependence Analysis' for function 'coupled_miv_type_mismatch' 54entry: 55 br label %for.cond 56 57; DELIN: da analyze - input [* *]! 58; DELIN: da analyze - anti [* *|<]! 59; DELIN: da analyze - none! 60for.cond: ; preds = %for.inc11, %entry 61 %indvars.iv11 = phi i64 [ %indvars.iv.next12, %for.inc11 ], [ 1, %entry ] 62 %exitcond14 = icmp ne i64 %indvars.iv11, 10000 63 br i1 %exitcond14, label %for.cond1.preheader, label %for.end13 64 65for.cond1.preheader: ; preds = %for.cond 66 %0 = trunc i64 %indvars.iv11 to i32 67 br label %for.cond1 68 69for.cond1: ; preds = %for.cond1.preheader, %for.body3 70 %indvars.iv8 = phi i64 [ %indvars.iv11, %for.cond1.preheader ], [ %indvars.iv.next9, %for.body3 ] 71 %j.0 = phi i32 [ %inc, %for.body3 ], [ %0, %for.cond1.preheader ] 72 %lftr.wideiv = trunc i64 %indvars.iv8 to i32 73 %exitcond = icmp ne i32 %lftr.wideiv, 10000 74 br i1 %exitcond, label %for.body3, label %for.inc11 75 76for.body3: ; preds = %for.cond1 77 %sub = add nsw i32 %j.0, -1 78 %idxprom = zext i32 %sub to i64 79 %1 = add nuw nsw i64 %indvars.iv11, 1 80 %arrayidx5 = getelementptr inbounds [10004 x [10004 x i32]], [10004 x [10004 x i32]]* @a, i64 0, i64 %1, i64 %idxprom 81 %2 = load i32, i32* %arrayidx5, align 4 82 %add6 = add nsw i32 %2, 2 83 %arrayidx10 = getelementptr inbounds [10004 x [10004 x i32]], [10004 x [10004 x i32]]* @a, i64 0, i64 %indvars.iv11, i64 %indvars.iv8 84 store i32 %add6, i32* %arrayidx10, align 4 85 %indvars.iv.next9 = add nuw nsw i64 %indvars.iv8, 1 86 %inc = add nuw nsw i32 %j.0, 1 87 br label %for.cond1 88 89for.inc11: ; preds = %for.cond1 90 %indvars.iv.next12 = add nuw nsw i64 %indvars.iv11, 1 91 br label %for.cond 92 93for.end13: ; preds = %for.cond 94 ret void 95} 96 97attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "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" } 98 99!llvm.ident = !{!0} 100 101!0 = !{!"clang version 3.7.0 (https://vaivaswatha@bitbucket.org/compilertree/amd_clang.git 93a05fb75ee3411d24e8b2b184fc766a5318403e) (https://vaivaswatha@bitbucket.org/compilertree/amd_llvm.git 166d93d26efc912b517739f64d054a435e8e95cd)"} 102