diff options
| author | Tim Northover <Tim.Northover@arm.com> | 2012-09-06 15:27:12 +0000 |
|---|---|---|
| committer | Tim Northover <Tim.Northover@arm.com> | 2012-09-06 15:27:12 +0000 |
| commit | 00e071ad52a4630c5a381cf5e0b99b0b2efecded (patch) | |
| tree | c660517bc4cdff63628d1c879fbc523575aa9acb /llvm/lib/Target/ARM/Disassembler/ARMDisassembler.cpp | |
| parent | c87e7280b843e3916d3ca21a02cb5360afa6b445 (diff) | |
| download | bcm5719-llvm-00e071ad52a4630c5a381cf5e0b99b0b2efecded.tar.gz bcm5719-llvm-00e071ad52a4630c5a381cf5e0b99b0b2efecded.zip | |
Diagnose invalid alignments on duplicating VLDn instructions.
Patch by Chris Lidbury.
llvm-svn: 163323
Diffstat (limited to 'llvm/lib/Target/ARM/Disassembler/ARMDisassembler.cpp')
| -rw-r--r-- | llvm/lib/Target/ARM/Disassembler/ARMDisassembler.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/Target/ARM/Disassembler/ARMDisassembler.cpp b/llvm/lib/Target/ARM/Disassembler/ARMDisassembler.cpp index 657c1034626..57642e1924e 100644 --- a/llvm/lib/Target/ARM/Disassembler/ARMDisassembler.cpp +++ b/llvm/lib/Target/ARM/Disassembler/ARMDisassembler.cpp @@ -2701,6 +2701,8 @@ static DecodeStatus DecodeVLD1DupInstruction(MCInst &Inst, unsigned Insn, unsigned align = fieldFromInstruction(Insn, 4, 1); unsigned size = fieldFromInstruction(Insn, 6, 2); + if (size == 0 && align == 1) + return MCDisassembler::Fail; align *= (1 << size); switch (Inst.getOpcode()) { @@ -2831,6 +2833,8 @@ static DecodeStatus DecodeVLD4DupInstruction(MCInst &Inst, unsigned Insn, unsigned align = fieldFromInstruction(Insn, 4, 1); if (size == 0x3) { + if (align == 0) + return MCDisassembler::Fail; size = 4; align = 16; } else { |
