[LLVMbugs] [Bug 24122] New: llvm-objdump fails on powerpc64le binaries

[bugzilla-daemon at llvm.org]

https://llvm.org/bugs/show_bug.cgi?id=24122

            Bug ID: 24122
           Summary: llvm-objdump fails on powerpc64le binaries
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: Backend: PowerPC
          Assignee: unassignedbugs at nondot.org
          Reporter: echristo at gmail.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Lots of:

llvm-objdump: warning: invalid instruction encoding

dzur:~/tmp> cat baz.c
int baz();
int __attribute__((always_inline)) foo() { return baz(); }
int bar() {
  if (foo())
    return baz();
  return foo()+baz();
}
dzur:~/tmp> ~/builds/build-llvm/Debug+Asserts/bin/clang -c -target
powerpc64le-linux-gnu baz.c -o baz-ppc.o
dzur:~/tmp> ~/builds/build-llvm/Debug+Asserts/bin/llvm-objdump -disassemble
baz-ppc.o

baz-ppc.o:    file format ELF64-ppc64

Disassembly of section .text:
foo:
/usr/local/google/home/echristo/builds/build-llvm/Debug+Asserts/bin/llvm-objdump:
warning: invalid instruction encoding
/usr/local/google/home/echristo/builds/build-llvm/Debug+Asserts/bin/llvm-objdump:
warning: invalid instruction encoding
       8:    a6 02 08 7c     lhzu 16, 2172(2)
/usr/local/google/home/echristo/builds/build-llvm/Debug+Asserts/bin/llvm-objdump:
warning: invalid instruction encoding
/usr/local/google/home/echristo/builds/build-llvm/Debug+Asserts/bin/llvm-objdump:
warning: invalid instruction encoding
      14:    91 ff 21 f8     stw 15, 8696(31)
/usr/local/google/home/echristo/builds/build-llvm/Debug+Asserts/bin/llvm-objdump:
warning: invalid instruction encoding
/usr/local/google/home/echristo/builds/build-llvm/Debug+Asserts/bin/llvm-objdump:
warning: invalid instruction encoding
/usr/local/google/home/echristo/builds/build-llvm/Debug+Asserts/bin/llvm-objdump:
warning: invalid instruction encoding
/usr/local/google/home/echristo/builds/build-llvm/Debug+Asserts/bin/llvm-objdump:
warning: invalid instruction encoding
      28:    b4 07 83 7c     sthu 0, -31876(7)
      2c:    70 00 21 38     andi. 0, 0, 8504
      30:    10 00 01 e8     vmsumshm 0, 0, 0, 7
/usr/local/google/home/echristo/builds/build-llvm/Debug+Asserts/bin/llvm-objdump:
warning: invalid instruction encoding
      38:    a6 03 08 7c     lhzu 16, 2172(3)
      3c:    20 00 80 4e     subfic 0, 0, -32690
/usr/local/google/home/echristo/builds/build-llvm/Debug+Asserts/bin/llvm-objdump:
warning: invalid instruction encoding
/usr/local/google/home/echristo/builds/build-llvm/Debug+Asserts/bin/llvm-objdump:
warning: invalid instruction encoding
/usr/local/google/home/echristo/builds/build-llvm/Debug+Asserts/bin/llvm-objdump:
warning: invalid instruction encoding
/usr/local/google/home/echristo/builds/build-llvm/Debug+Asserts/bin/llvm-objdump:
warning: invalid instruction encoding

bar:
/usr/local/google/home/echristo/builds/build-llvm/Debug+Asserts/bin/llvm-objdump:
warning: invalid instruction encoding
/usr/local/google/home/echristo/builds/build-llvm/Debug+Asserts/bin/llvm-objdump:
warning: invalid instruction encoding
      58:    a6 02 08 7c     lhzu 16, 2172(2)
/usr/local/google/home/echristo/builds/build-llvm/Debug+Asserts/bin/llvm-objdump:
warning: invalid instruction encoding
/usr/local/google/home/echristo/builds/build-llvm/Debug+Asserts/bin/llvm-objdump:
warning: invalid instruction encoding
      64:    91 ff 21 f8     stw 15, 8696(31)
/usr/local/google/home/echristo/builds/build-llvm/Debug+Asserts/bin/llvm-objdump:
warning: invalid instruction encoding
/usr/local/google/home/echristo/builds/build-llvm/Debug+Asserts/bin/llvm-objdump:
warning: invalid instruction encoding
/usr/local/google/home/echristo/builds/build-llvm/Debug+Asserts/bin/llvm-objdump:
warning: invalid instruction encoding
/usr/local/google/home/echristo/builds/build-llvm/Debug+Asserts/bin/llvm-objdump:
warning: invalid instruction encoding
/usr/local/google/home/echristo/builds/build-llvm/Debug+Asserts/bin/llvm-objdump:
warning: invalid instruction encoding
/usr/local/google/home/echristo/builds/build-llvm/Debug+Asserts/bin/llvm-objdump:
warning: invalid instruction encoding
/usr/local/google/home/echristo/builds/build-llvm/Debug+Asserts/bin/llvm-objdump:
warning: invalid instruction encoding
/usr/local/google/home/echristo/builds/build-llvm/Debug+Asserts/bin/llvm-objdump:
warning: invalid instruction encoding
/usr/local/google/home/echristo/builds/build-llvm/Debug+Asserts/bin/llvm-objdump:
warning: invalid instruction encoding
      8c:    64 00 9f 90     oris 0, 0, 40848
      90:    2c 00 00 48     cmpwi     0, 72
/usr/local/google/home/echristo/builds/build-llvm/Debug+Asserts/bin/llvm-objdump:
warning: invalid instruction encoding
/usr/local/google/home/echristo/builds/build-llvm/Debug+Asserts/bin/llvm-objdump:
warning: invalid instruction encoding
/usr/local/google/home/echristo/builds/build-llvm/Debug+Asserts/bin/llvm-objdump:
warning: invalid instruction encoding
      a0:    60 00 9f 90     ori 0, 0, 40848
/usr/local/google/home/echristo/builds/build-llvm/Debug+Asserts/bin/llvm-objdump:
warning: invalid instruction encoding
/usr/local/google/home/echristo/builds/build-llvm/Debug+Asserts/bin/llvm-objdump:
warning: invalid instruction encoding
/usr/local/google/home/echristo/builds/build-llvm/Debug+Asserts/bin/llvm-objdump:
warning: invalid instruction encoding
      b0:    60 00 bf 80     ori 0, 0, 49024
/usr/local/google/home/echristo/builds/build-llvm/Debug+Asserts/bin/llvm-objdump:
warning: invalid instruction encoding
      b8:    64 00 9f 90     oris 0, 0, 40848
      bc:    66 00 7f e8     oris 0, 16, 32744
      c0:    70 00 21 38     andi. 0, 0, 8504
      c4:    10 00 01 e8     vmsumshm 0, 0, 0, 7
/usr/local/google/home/echristo/builds/build-llvm/Debug+Asserts/bin/llvm-objdump:
warning: invalid instruction encoding
      cc:    a6 03 08 7c     lhzu 16, 2172(3)
      d0:    20 00 80 4e     subfic 0, 0, -32690
/usr/local/google/home/echristo/builds/build-llvm/Debug+Asserts/bin/llvm-objdump:
warning: invalid instruction encoding
/usr/local/google/home/echristo/builds/build-llvm/Debug+Asserts/bin/llvm-objdump:
warning: invalid instruction encoding
/usr/local/google/home/echristo/builds/build-llvm/Debug+Asserts/bin/llvm-objdump:
warning: invalid instruction encoding

might just be endianness issues or it could be something else.

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