[Bug gas/10169] New: Fails to report a bad shift value for Thumb2 instructions SSAT and USAT

[anthony dot fox at cl dot cam dot ac dot uk]

The ARM Thumb2 assembly code

SSAT<c> <Rd>,#<imm>,<Rn>,ASR #32

and

USAT<c> <Rd>,#<imm>,<Rn>,ASR #32

should produce an error (these are only valid when not in Thumb mode).

They instead compile to

SSAT16<c> <Rd>,#<imm>,<Rn>

and

USAT16<c> <Rd>,#<imm>,<Rn>

For example:

$ echo ".code 16 ssat r1,#2,r3,asr #32" | arm-elf-as -aln -EB -o /dev/null
   1 0000 F3230101      .code 16 ssat r1,#2,r3,asr#32

$ echo ".code 16 ssat16 r1,#2,r3" | arm-elf-as -aln -EB -o /dev/null
   1 0000 F3230101      .code 16 ssat16 r1,#2,r3

$ echo ".code 16 usat r1,#2,r3,asr #32" | arm-elf-as -aln -EB -o /dev/null
   1 0000 F3A30102      .code 16 usat r1,#2,r3,asr#32

$ echo ".code 16 usat16 r1,#2,r3" | arm-elf-as -aln -EB -o /dev/null
   1 0000 F3A30102      .code 16 usat16 r1,#2,r3

-- 
           Summary: Fails to report a bad shift value for Thumb2
                    instructions SSAT and USAT
           Product: binutils
           Version: 2.19
            Status: NEW
          Severity: normal
          Priority: P3
         Component: gas
        AssignedTo: unassigned at sources dot redhat dot com
        ReportedBy: anthony dot fox at cl dot cam dot ac dot uk
                CC: bug-binutils at gnu dot org
  GCC host triplet: i386-redhat-linux
GCC target triplet: arm-elf


http://sourceware.org/bugzilla/show_bug.cgi?id=10169

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