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-rw-r--r--llvm/lib/Target/ARM/ARMCallingConv.td4
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/Target/ARM/ARMCallingConv.td b/llvm/lib/Target/ARM/ARMCallingConv.td
index 0404b14f0a6..dcfd6518a84 100644
--- a/llvm/lib/Target/ARM/ARMCallingConv.td
+++ b/llvm/lib/Target/ARM/ARMCallingConv.td
@@ -258,6 +258,10 @@ def CSR_AAPCS_SplitPush : CalleeSavedRegs<(add LR, R7, R6, R5, R4,
R11, R10, R9, R8,
(sequence "D%u", 15, 8))>;
+// R8 is used to pass swifterror, remove it from CSR.
+def CSR_AAPCS_SplitPush_SwiftError : CalleeSavedRegs<(sub CSR_AAPCS_SplitPush,
+ R8)>;
+
// Constructors and destructors return 'this' in the ARM C++ ABI; since 'this'
// and the pointer return value are both passed in R0 in these cases, this can
// be partially modelled by treating R0 as a callee-saved register
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