[Bug gas/20934] New: wrong replacements for ld/sd on mips-o32 abi

[ma.jiang at zte dot com.cn]

https://sourceware.org/bugzilla/show_bug.cgi?id=20934

            Bug ID: 20934
           Summary: wrong replacements for ld/sd on mips-o32 abi
           Product: binutils
           Version: 2.28 (HEAD)
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: gas
          Assignee: unassigned at sourceware dot org
          Reporter: ma.jiang at zte dot com.cn
  Target Milestone: ---

Hi all,
  When using mips-o32 abi, gas will replace ld/sd into lw/sw. This behavior
seems strange. The gas could produce wrong codes easily without any warnings.
  Using "gas -mabi=32", a "ld $v0, ($a1)" will be silently translated into "lw 
v0,0(a1);lw     v1,4(a1)". IMO, this is NOT right, because the v1 register is
changed and the coder probably could not notice this.

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