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-rw-r--r--lib/Target/ARM/ARMAddressingModes.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/Target/ARM/ARMAddressingModes.h b/lib/Target/ARM/ARMAddressingModes.h
index e68354a42f..d136afa544 100644
--- a/lib/Target/ARM/ARMAddressingModes.h
+++ b/lib/Target/ARM/ARMAddressingModes.h
@@ -520,6 +520,8 @@ namespace ARM_AM {
// This is stored in two operands [regaddr, align]. The first is the
// address register. The second operand is the value of the alignment
// specifier to use or zero if no explicit alignment.
+ // Valid alignments are: 0, 8, 16, and 32 bytes, depending on the specific
+ // instruction.
} // end namespace ARM_AM
} // end namespace llvm