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-rw-r--r--llvm/utils/TableGen/FixedLenDecoderEmitter.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/utils/TableGen/FixedLenDecoderEmitter.cpp b/llvm/utils/TableGen/FixedLenDecoderEmitter.cpp
index b2dc8788809..0c3017f3892 100644
--- a/llvm/utils/TableGen/FixedLenDecoderEmitter.cpp
+++ b/llvm/utils/TableGen/FixedLenDecoderEmitter.cpp
@@ -1866,7 +1866,7 @@ static void emitFieldFromInstruction(formatted_raw_ostream &OS) {
<< " if (numBits == sizeof(InsnType)*8)\n"
<< " fieldMask = (InsnType)(-1LL);\n"
<< " else\n"
- << " fieldMask = ((1 << numBits) - 1) << startBit;\n"
+ << " fieldMask = (((InsnType)1 << numBits) - 1) << startBit;\n"
<< " return (insn & fieldMask) >> startBit;\n"
<< "}\n\n";
}
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