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Move the ARM SSAT and USAT optional shift amount operand out of the

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instruction opcode.  This also fixes part of PR7792.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110875 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bob Wilson
2010-08-11 23:10:46 +00:00
parent d29583bd32
commit eaf1c98a7c
9 changed files with 80 additions and 44 deletions
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2
lib/Target/ARM/Disassembler/ARMDisassembler.cpp
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@ -106,7 +106,7 @@ static unsigned decodeARMInstruction(uint32_t &insn) {
// Ditto for STRT, which is a super-instruction for A8.6.210 Encoding A1 & A2.
// As a result, the decoder fails to deocode SSAT properly.
if (slice(insn, 27, 21) == 0x35 && slice(insn, 5, 4) == 1)
return slice(insn, 6, 6) == 0 ? ARM::SSATlsl : ARM::SSATasr;
return ARM::SSAT;
// Ditto for RSCrs, which is a super-instruction for A8.6.146 & A8.6.147.
// As a result, the decoder fails to decode STRHT/LDRHT/LDRSHT/LDRSBT.