https://github.com/Dirreke created
https://github.com/llvm/llvm-project/pull/69731
close #68971
according to #21245 , disable `__multi3` and other buitin functions which are
not available in 32-bit target.
>From 3bd40891327d072f38c4b0675ef6facac1613470 Mon Sep 17 00:00:00 2001
From: Dirreck <mingyang...@163.com>
Date: Fri, 20 Oct 2023 21:43:52 +0800
Subject: [PATCH] disable multi3 in 32 bit target
---
llvm/lib/Target/CSKY/CSKYISelLowering.cpp | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/llvm/lib/Target/CSKY/CSKYISelLowering.cpp
b/llvm/lib/Target/CSKY/CSKYISelLowering.cpp
index 5d21aab513ddee7..fae07a599128cde 100644
--- a/llvm/lib/Target/CSKY/CSKYISelLowering.cpp
+++ b/llvm/lib/Target/CSKY/CSKYISelLowering.cpp
@@ -109,6 +109,14 @@ CSKYTargetLowering::CSKYTargetLowering(const TargetMachine
&TM,
setOperationAction(ISD::ATOMIC_FENCE, MVT::Other, Expand);
+ // These libcalls are not available in 32-bit.
+ setLibcallName(RTLIB::SHL_I128, nullptr);
+ setLibcallName(RTLIB::SRL_I128, nullptr);
+ setLibcallName(RTLIB::SRA_I128, nullptr);
+ setLibcallName(RTLIB::MUL_I128, nullptr);
+ setLibcallName(RTLIB::MULO_I64, nullptr);
+ setLibcallName(RTLIB::MULO_I128, nullptr);
+
// Float
ISD::CondCode FPCCToExtend[] = {
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