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
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 @@
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 @@
unsigned align = fieldFromInstruction(Insn, 4, 1);
if (size == 0x3) {
+ if (align == 0)
+ return MCDisassembler::Fail;
size = 4;
align = 16;
} else {