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| 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 | 24b9f258f194c5e472bf133f9bbf5ca26ad500d3 (patch) | |
| tree | 23bbf6253e0303a6dd2ee728007aca63c9fd1c68 /lib/Target/ARM/Disassembler | |
| parent | eae1d34029c159306ce4a0472294de6cf9baedac (diff) | |
| download | external_llvm-24b9f258f194c5e472bf133f9bbf5ca26ad500d3.zip external_llvm-24b9f258f194c5e472bf133f9bbf5ca26ad500d3.tar.gz external_llvm-24b9f258f194c5e472bf133f9bbf5ca26ad500d3.tar.bz2 | |
Diagnose invalid alignments on duplicating VLDn instructions.
Patch by Chris Lidbury.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163323 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/ARM/Disassembler')
| -rw-r--r-- | lib/Target/ARM/Disassembler/ARMDisassembler.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Target/ARM/Disassembler/ARMDisassembler.cpp b/lib/Target/ARM/Disassembler/ARMDisassembler.cpp index 657c103..57642e1 100644 --- a/lib/Target/ARM/Disassembler/ARMDisassembler.cpp +++ b/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 { |