Issue 78948
Summary [Flang] Linker fails, big local array with SAVE attribute.
Labels bug, flang:runtime
Assignees
Reporter kiranktp
    [Flang] Linker fails, big local array with SAVE attribute.

Here is the reproducer:
cat -n repro.F90
     1  Program test_linker
     2 Call s()
     3    Print '("ok")'
     4  Contains
     5 Subroutine s()
     6      Real(kind(1.d0)),Save :: x(1:10**9)
     7 End Subroutine s
     8  End Program test_linker

$ flang-new repro.F90
/home/llvm-flang-src/install/lib/libFortranRuntime.a(unit.cpp.o): in function `Fortran::runtime::io::CloseAllExternalUnits()':
unit.cpp:(.text._ZN7Fortran7runtime2ioL21CloseAllExternalUnitsEv+0x8): relocation truncated to fit: R_X86_64_PC32 against `.bss._ZN7Fortran7runtime2ioL11unitMapLockE'
unit.cpp:(.text._ZN7Fortran7runtime2ioL21CloseAllExternalUnitsEv+0x64): relocation truncated to fit: R_X86_64_PC32 against `.bss._ZN7Fortran7runtime2ioL7unitMapE'
unit.cpp:(.text._ZN7Fortran7runtime2ioL21CloseAllExternalUnitsEv+0x6b): relocation truncated to fit: R_X86_64_PC32 against `.bss._ZN7Fortran7runtime2ioL11unitMapLockE'
unit.cpp:(.text._ZN7Fortran7runtime2ioL21CloseAllExternalUnitsEv+0x71): relocation truncated to fit: R_X86_64_PC32 against `.bss._ZN7Fortran7runtime2ioL11unitMapLockE'
unit.cpp:(.text._ZN7Fortran7runtime2ioL21CloseAllExternalUnitsEv+0x86): relocation truncated to fit: R_X86_64_PC32 against `.bss._ZN7Fortran7runtime2ioL7unitMapE'
unit.cpp:(.text._ZN7Fortran7runtime2ioL21CloseAllExternalUnitsEv+0x92): relocation truncated to fit: R_X86_64_PC32 against `.bss._ZN7Fortran7runtime2ioL7unitMapE'
unit.cpp:(.text._ZN7Fortran7runtime2ioL21CloseAllExternalUnitsEv+0xa0): relocation truncated to fit: R_X86_64_PC32 against `.bss._ZN7Fortran7runtime2ioL13defaultOutputE'
unit.cpp:(.text._ZN7Fortran7runtime2ioL21CloseAllExternalUnitsEv+0xab): relocation truncated to fit: R_X86_64_PC32 against `.bss._ZN7Fortran7runtime2ioL12defaultInputE'
unit.cpp:(.text._ZN7Fortran7runtime2ioL21CloseAllExternalUnitsEv+0xb6): relocation truncated to fit: R_X86_64_PC32 against `.bss._ZN7Fortran7runtime2ioL11errorOutputE'
unit.cpp:(.text._ZN7Fortran7runtime2ioL21CloseAllExternalUnitsEv+0xc0): relocation truncated to fit: R_X86_64_PC32 against `.bss._ZN7Fortran7runtime2ioL11unitMapLockE'
/home/llvm-flang-src/install/lib/libFortranRuntime.a(unit.cpp.o): in function `Fortran::runtime::io::ExternalFileUnit::CreateUnitMap() [clone .localalias]':
unit.cpp:(.text._ZN7Fortran7runtime2io16ExternalFileUnit13CreateUnitMapEv+0x1e6): additional relocation overflows omitted from the output
flang-new: error: linker command failed with exit code 1 (use -v to see invocation)
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