Issues

• spacing(0.0) should be tiny(x), returns smallest denormal

  bugintrinsiclow prioritywrong result
  lfortran/lfortran#17658 · Filter by author usefahmed07 opened on Nov 13, 2026

• ibits returns 0 when len == bit_size(i)

  bugintrinsiclow prioritywrong result
  lfortran/lfortran#17657 · Filter by author usefahmed07 opened on Nov 13, 2026

• C backend: printing an allocatable scalar component raises Not implemented

  bugc/cppderived typesICEmedium priority
  lfortran/lfortran#17656 · Filter by author certik opened on Nov 13, 2026

• print of size(pack(zero-size character array, scalar mask)) prints nothing

  bugintrinsiclow prioritystringswrong result
  lfortran/lfortran#17655 · Filter by author usefahmed07 opened on Nov 13, 2026

• trim() of a constant string inside an array constructor: std::bad_alloc / LCOMPILERS_ASSERT

  bugICEintrinsicmedium prioritystrings
  lfortran/lfortran#17653 · Filter by author usefahmed07 opened on Nov 13, 2026

• reshape with rank-1 pad= and rank-2 source rejected with misleading type error

  bugintrinsicmedium prioritysemantics
  lfortran/lfortran#17652 · Filter by author usefahmed07 opened on Nov 13, 2026

• associate with reduction (dim=) of a zero-size section segfaults

  arraysbugintrinsicmedium prioritymemory
  lfortran/lfortran#17651 · Filter by author usefahmed07 opened on Nov 13, 2026

• mvbits with len=0 modifies TO (result depends on frompos)

  bugintrinsiclow prioritywrong result
  lfortran/lfortran#17650 · Filter by author usefahmed07 opened on Nov 13, 2026

• C backend ignores BIND(C, NAME=...) of module scalar, breaking external C linkage

  bugc/cppmedium priority
  lfortran/lfortran#17647 · Filter by author certik opened on Nov 13, 2026

• C++ backend: rank-two module initializer with RESHAPE aborts in visit_ArrayReshape

  arraysbugc/cppICEintrinsicmedium priority
  lfortran/lfortran#17646 · Filter by author certik opened on Nov 13, 2026

• Data-pointer component default cannot reference a target declared later; --show-fortran cannot recompile its own output

  bugderived typesFortranlow prioritysemantics
  lfortran/lfortran#17645 · Filter by author certik opened on Nov 13, 2026

• --show-fortran emits malformed procedure-pointer component defaults and calls

  bugderived typesFortranlow priorityprocedure pointers
  lfortran/lfortran#17644 · Filter by author certik opened on Nov 12, 2026

• --show-fortran omits derived-type definitions local to BLOCK constructs

  bugderived typesFortranlow priority
  lfortran/lfortran#17643 · Filter by author certik opened on Nov 12, 2026

• LLVM codegen aborts for numeric pointer-array component defaulted to a saved target

  arraysbugderived typesICEllvmmedium priority
  lfortran/lfortran#17641 · Filter by author certik opened on Nov 12, 2026

• select type inside rank (0) of an allocatable or pointer class(*) assumed-rank dummy aborts in create_gep2

  arraysbugICEllvmmedium priorityOOP
  lfortran/lfortran#17639 · Filter by author certik opened on Nov 12, 2026

• Character scalar passed to a non-bind(c) character assumed-rank dummy (plain or pointer) arrives with rank 1 instead of 0

  arraysbugmedium prioritystringswrong result
  lfortran/lfortran#17638 · Filter by author certik opened on Nov 12, 2026

• select rank: rank (0) associate name still typed as an array: if (x) on a logical dummy and x%v on a derived-type dummy are rejected

  arraysbugderived typesmedium prioritysemantics
  lfortran/lfortran#17637 · Filter by author certik opened on Nov 12, 2026

• Allocatable scalar passed to an allocatable assumed-rank dummy: deallocation in the callee (intent(out) or deallocate in rank (0)) does not reach the caller

  arraysbugmedium prioritymemorywrong result
  lfortran/lfortran#17636 · Filter by author certik opened on Nov 12, 2026

• where (mask) r = cshift(a, 1) / eoshift(a, 1) on a rank-2 array fails LLVM module verification

  arraysbugintrinsicllvmmedium priority
  lfortran/lfortran#17633 · Filter by author usefahmed07 opened on Nov 12, 2026

• findloc on a rank-2 array with MASK and no DIM returns zeros

  arraysbugintrinsicmedium prioritywrong result
  lfortran/lfortran#17632 · Filter by author usefahmed07 opened on Nov 12, 2026
  1

• reshape of a class(*) assumed-shape dummy array segfaults at run time

  arraysbugintrinsiclow priorityOOP
  lfortran/lfortran#17631 · Filter by author certik opened on Nov 12, 2026

• count with DIM and a non-default KIND (1, 2, 8) aborts: AssertFailed in Assignment()

  arraysasr passbugICEintrinsicmedium priority
  lfortran/lfortran#17629 · Filter by author usefahmed07 opened on Nov 12, 2026

• --descriptor-index-64: component of a section of a class array, c(1:3)%val, fails ASR verification in array_op ("Assignment value type i32 does not match target type i64")

  arraysasr passbugICElow priorityOOP
  lfortran/lfortran#17626 · Filter by author assem2002 opened on Nov 12, 2026

• array constructor with a unary minus of an array of rank 2 or more, [-b], crashes code generation ("Cannot extract the ABI of ASR::exprType::15 expression")

  arraysbugICEllvmlow priority
  lfortran/lfortran#17625 · Filter by author assem2002 opened on Nov 12, 2026

• implied-do array constructor whose item is an elemental intrinsic of a rank-2 array, [(abs(b), i = 1, 2)], fails ASR verification in intrinsic_function

  arraysasr passbugICEintrinsiclow priority
  lfortran/lfortran#17624 · Filter by author assem2002 opened on Nov 12, 2026