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-rw-r--r--llvm/lib/Target/X86/X86CallingConv.td3
1 files changed, 3 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/X86CallingConv.td b/llvm/lib/Target/X86/X86CallingConv.td
index 4cb62b56bce..d38145e5519 100644
--- a/llvm/lib/Target/X86/X86CallingConv.td
+++ b/llvm/lib/Target/X86/X86CallingConv.td
@@ -196,6 +196,9 @@ def RetCC_X86_64_WebKit_JS : CallingConv<[
]>;
def RetCC_X86_64_Swift : CallingConv<[
+
+ CCIfSwiftError<CCIfType<[i64], CCAssignToReg<[R12]>>>,
+
// For integers, ECX, R8D can be used as extra return registers.
CCIfType<[i1], CCPromoteToType<i8>>,
CCIfType<[i8] , CCAssignToReg<[AL, DL, CL, R8B]>>,
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