[llvm-bugs] [Bug 35716] New: [AMDGPU][MC] Incorrect handling of negative expressions

via llvm-bugs llvm-bugs at lists.llvm.org
Thu Dec 21 03:51:26 PST 2017


            Bug ID: 35716
           Summary: [AMDGPU][MC] Incorrect handling of negative
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Backend: AMDGPU
          Assignee: unassignedbugs at nondot.org
          Reporter: dpreobrazhensky at luxoft.com
                CC: llvm-bugs at lists.llvm.org

A minus sign before a symbol is silently ignored.
For example, the following code

    s_sub_u32 s0, s0, -t
    s_sub_u32 s0, s0, -t

translates to:

    t = 1
        s_sub_u32 s0, s0, 1      ; encoding: [0x00,0x81,0x80,0x80]
    t = -1
        s_sub_u32 s0, s0, -1     ; encoding: [0x00,0xc1,0x80,0x80]

You are receiving this mail because:
You are on the CC list for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-bugs/attachments/20171221/f71728cf/attachment.html>

More information about the llvm-bugs mailing list