[llvm] SPARC: Start moving runtime libcall config to tablegen (PR #147672)

[Matt Arsenault via llvm-commits]

https://github.com/arsenm updated https://github.com/llvm/llvm-project/pull/147672

>From 29bb6c93960097b144e35daee161b147c6f76af7 Mon Sep 17 00:00:00 2001
From: Matt Arsenault <Matthew.Arsenault at amd.com>
Date: Wed, 9 Jul 2025 15:45:06 +0900
Subject: [PATCH] SPARC: Start moving runtime libcall config to tablegen

---
 llvm/include/llvm/IR/RuntimeLibcalls.td     | 17 +++++++++++++++++
 llvm/lib/Target/Sparc/SparcISelLowering.cpp | 13 -------------
 2 files changed, 17 insertions(+), 13 deletions(-)

diff --git a/llvm/include/llvm/IR/RuntimeLibcalls.td b/llvm/include/llvm/IR/RuntimeLibcalls.td
index 9781bef8e37b6..4ad6689691f8e 100644
--- a/llvm/include/llvm/IR/RuntimeLibcalls.td
+++ b/llvm/include/llvm/IR/RuntimeLibcalls.td
@@ -1980,6 +1980,23 @@ def _Q_qtoull : RuntimeLibcallImpl<FPTOUINT_F128_I64>;
 def _Q_lltoq : RuntimeLibcallImpl<SINTTOFP_I64_F128>;
 def _Q_ulltoq : RuntimeLibcallImpl<UINTTOFP_I64_F128>;
 
+def isSPARC : RuntimeLibcallPredicate<"TT.isSPARC()">;
+def isSPARC32 : RuntimeLibcallPredicate<"TT.isSPARC32()">;
+def isSPARC64 : RuntimeLibcallPredicate<"TT.isSPARC64()">;
+
+defvar SPARC64_MulDivCalls = [
+  __mulsi3, __divsi3, __modsi3, __udivsi3, __umodsi3
+];
+
+def SPARCSystemLibrary
+    : SystemRuntimeLibrary<isSPARC,
+      (add (sub DefaultLibcallImpls32, SPARC64_MulDivCalls),
+            sparc_umul, sparc_div, sparc_udiv, sparc_rem, sparc_urem,
+       LibcallImpls<(add _Q_qtoll, _Q_qtoull, _Q_lltoq, _Q_ulltoq), isSPARC32>,
+       LibcallImpls<(add SPARC64_MulDivCalls, Int128RTLibcalls), isSPARC64>,
+       LibmHasSinCosF32, LibmHasSinCosF64, LibmHasSinCosF128)
+>;
+
 //===----------------------------------------------------------------------===//
 // Windows Runtime Libcalls
 //===----------------------------------------------------------------------===//
diff --git a/llvm/lib/Target/Sparc/SparcISelLowering.cpp b/llvm/lib/Target/Sparc/SparcISelLowering.cpp
index 9487234561824..9b434d87c2676 100644
--- a/llvm/lib/Target/Sparc/SparcISelLowering.cpp
+++ b/llvm/lib/Target/Sparc/SparcISelLowering.cpp
@@ -1824,12 +1824,6 @@ SparcTargetLowering::SparcTargetLowering(const TargetMachine &TM,
   setOperationAction(ISD::MULHS,     MVT::i32, Expand);
   setOperationAction(ISD::MUL,       MVT::i32, Expand);
 
-  setLibcallImpl(RTLIB::MUL_I32, RTLIB::sparc_umul);
-  setLibcallImpl(RTLIB::SDIV_I32, RTLIB::sparc_div);
-  setLibcallImpl(RTLIB::UDIV_I32, RTLIB::sparc_udiv);
-  setLibcallImpl(RTLIB::SREM_I32, RTLIB::sparc_rem);
-  setLibcallImpl(RTLIB::UREM_I32, RTLIB::sparc_urem);
-
   if (Subtarget->useSoftMulDiv()) {
     // .umul works for both signed and unsigned
     setOperationAction(ISD::SMUL_LOHI, MVT::i32, Expand);
@@ -1879,13 +1873,6 @@ SparcTargetLowering::SparcTargetLowering(const TargetMachine &TM,
     setOperationAction(ISD::STORE, MVT::f128, Custom);
   }
 
-  if (!Subtarget->is64Bit()) {
-    setLibcallImpl(RTLIB::FPTOSINT_F128_I64, RTLIB::_Q_qtoll);
-    setLibcallImpl(RTLIB::FPTOUINT_F128_I64, RTLIB::_Q_qtoull);
-    setLibcallImpl(RTLIB::SINTTOFP_I64_F128, RTLIB::_Q_lltoq);
-    setLibcallImpl(RTLIB::UINTTOFP_I64_F128, RTLIB::_Q_ulltoq);
-  }
-
   if (Subtarget->hasHardQuad()) {
     setOperationAction(ISD::FADD,  MVT::f128, Legal);
     setOperationAction(ISD::FSUB,  MVT::f128, Legal);