[llvm-bugs] [Bug 43434] New: [llvm-objdump] fails to disassemble armv8+lse instruction

via llvm-bugs llvm-bugs at lists.llvm.org
Tue Sep 24 14:45:29 PDT 2019


https://bugs.llvm.org/show_bug.cgi?id=43434

            Bug ID: 43434
           Summary: [llvm-objdump] fails to disassemble armv8+lse
                    instruction
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Backend: AArch64
          Assignee: unassignedbugs at nondot.org
          Reporter: ndesaulniers at google.com
                CC: arnaud.degrandmaison at arm.com, kristof.beyls at arm.com,
                    llvm-bugs at lists.llvm.org, peter.smith at linaro.org,
                    srhines at google.com, Ties.Stuij at arm.com

$ cat test.s
.text
.globl foo
  .arch armv8-a+lse
  stadd w9, [x8]
$ clang -target aarch64-linux-gnu test.s -c
$ llvm-objdump -d test.o 

test.o: file format ELF64-aarch64-little


Disassembly of section .text:

0000000000000000 $x.0:
       0: 1f 01 29 b8                   <unknown>
$ aarch64-linux-gnu-objdump -d test.o

test.o:     file format elf64-littleaarch64


Disassembly of section .text:

0000000000000000 <.text>:
   0:   b829011f        stadd   w9, [x8]

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