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path: root/lib/Target/RISCV/RISCVCallingConv.td
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-rw-r--r--lib/Target/RISCV/RISCVCallingConv.td3
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/Target/RISCV/RISCVCallingConv.td b/lib/Target/RISCV/RISCVCallingConv.td
index e0c25e32e01..0b7a523424c 100644
--- a/lib/Target/RISCV/RISCVCallingConv.td
+++ b/lib/Target/RISCV/RISCVCallingConv.td
@@ -27,3 +27,6 @@ def CC_RISCV32 : CallingConv<[
]>;
def CSR : CalleeSavedRegs<(add X1, X3, X4, X8, X9, (sequence "X%u", 18, 27))>;
+
+// Needed for implementation of RISCVRegisterInfo::getNoPreservedMask()
+def CSR_NoRegs : CalleeSavedRegs<(add)>;