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-rw-r--r--llvm/lib/Target/RISCV/RISCVCallingConv.td4
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/Target/RISCV/RISCVCallingConv.td b/llvm/lib/Target/RISCV/RISCVCallingConv.td
index 4c303a9..da6b95d 100644
--- a/llvm/lib/Target/RISCV/RISCVCallingConv.td
+++ b/llvm/lib/Target/RISCV/RISCVCallingConv.td
@@ -95,3 +95,7 @@ def CSR_XLEN_F32_V_Interrupt_RVE: CalleeSavedRegs<(sub CSR_XLEN_F32_V_Interrupt,
// Same as CSR_XLEN_F64_V_Interrupt, but excluding X16-X31.
def CSR_XLEN_F64_V_Interrupt_RVE: CalleeSavedRegs<(sub CSR_XLEN_F64_V_Interrupt,
(sequence "X%u", 16, 31))>;
+
+def CSR_RT_MostRegs : CalleeSavedRegs<(sub CSR_Interrupt, X6, X7, X28)>;
+def CSR_RT_MostRegs_RVE : CalleeSavedRegs<(sub CSR_RT_MostRegs,
+ (sequence "X%u", 16, 31))>;