[LLVMbugs] [Bug 24350] New: clang arm assembler does not support pseudo-instruction 'adrl'

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Mon Aug 3 23:14:45 PDT 2015


            Bug ID: 24350
           Summary: clang arm assembler does not support
                    pseudo-instruction 'adrl'
           Product: clang
           Version: unspecified
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: -New Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: shenhan at google.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

"adrl rd, a_label" calculates a_label's address using pc-relative addressing,
which means the section containing the insn and a_label can be put to any
address. Without the support of this pseudo insn, it's more cumbersome to do
this. "MOV32" or "LDR rd,=a_label" doesn't work in this scenario because both
of these use absolute addressing.

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