2009-02-25-CrashZeroSizeArray.ll 1.6 KB

1234567891011121314151617181920212223242526272829303132333435363738
  1. ; RUN: opt < %s -instcombine | llvm-dis
  2. ; PR3667
  3. target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32"
  4. target triple = "i386-pc-linux-gnu"
  5. define void @_ada_c32001b(i32 %tmp5) {
  6. entry:
  7. %max289 = select i1 false, i32 %tmp5, i32 0 ; <i32> [#uses=1]
  8. %tmp6 = mul i32 %max289, 4 ; <i32> [#uses=1]
  9. %tmp7 = alloca i8, i32 0 ; <i8*> [#uses=1]
  10. %tmp8 = bitcast i8* %tmp7 to [0 x [0 x i32]]* ; <[0 x [0 x i32]]*> [#uses=1]
  11. %tmp11 = load i32, i32* null, align 1 ; <i32> [#uses=1]
  12. %tmp12 = icmp eq i32 %tmp11, 3 ; <i1> [#uses=1]
  13. %tmp13 = zext i1 %tmp12 to i8 ; <i8> [#uses=1]
  14. %tmp14 = ashr i32 %tmp6, 2 ; <i32> [#uses=1]
  15. %tmp15 = bitcast [0 x [0 x i32]]* %tmp8 to i8* ; <i8*> [#uses=1]
  16. %tmp16 = mul i32 %tmp14, 4 ; <i32> [#uses=1]
  17. %tmp17 = mul i32 1, %tmp16 ; <i32> [#uses=1]
  18. %tmp18 = getelementptr i8, i8* %tmp15, i32 %tmp17 ; <i8*> [#uses=1]
  19. %tmp19 = bitcast i8* %tmp18 to [0 x i32]* ; <[0 x i32]*> [#uses=1]
  20. %tmp20 = bitcast [0 x i32]* %tmp19 to i32* ; <i32*> [#uses=1]
  21. %tmp21 = getelementptr i32, i32* %tmp20, i32 0 ; <i32*> [#uses=1]
  22. %tmp22 = load i32, i32* %tmp21, align 1 ; <i32> [#uses=1]
  23. %tmp23 = icmp eq i32 %tmp22, 4 ; <i1> [#uses=1]
  24. %tmp24 = zext i1 %tmp23 to i8 ; <i8> [#uses=1]
  25. %toBool709 = icmp ne i8 %tmp13, 0 ; <i1> [#uses=1]
  26. %toBool710 = icmp ne i8 %tmp24, 0 ; <i1> [#uses=1]
  27. %tmp25 = and i1 %toBool709, %toBool710 ; <i1> [#uses=1]
  28. %tmp26 = zext i1 %tmp25 to i8 ; <i8> [#uses=1]
  29. %toBool711 = icmp ne i8 %tmp26, 0 ; <i1> [#uses=1]
  30. br i1 %toBool711, label %a, label %b
  31. a: ; preds = %entry
  32. ret void
  33. b: ; preds = %entry
  34. ret void
  35. }