From: Dan Gohman <gohman@apple.com>
Date: Mon, 8 Oct 2007 17:28:24 +0000 (+0000)
Subject: When we start enabling SMUL_LOHI/UMUL_LOHI or SDIVREM/UDIVREM in
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=3ce990dc051622755afc22b55f95954c5a19e779;p=oota-llvm.git

When we start enabling SMUL_LOHI/UMUL_LOHI or SDIVREM/UDIVREM in
target-indepenent lowering, don't use them on PowerPC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42755 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/PowerPC/PPCISelLowering.cpp b/lib/Target/PowerPC/PPCISelLowering.cpp
index ae29095dd8f..20ec3c37304 100644
--- a/lib/Target/PowerPC/PPCISelLowering.cpp
+++ b/lib/Target/PowerPC/PPCISelLowering.cpp
@@ -87,6 +87,16 @@ PPCTargetLowering::PPCTargetLowering(PPCTargetMachine &TM)
   setOperationAction(ISD::UREM, MVT::i32, Expand);
   setOperationAction(ISD::SREM, MVT::i64, Expand);
   setOperationAction(ISD::UREM, MVT::i64, Expand);
+
+  // Don't use SMUL_LOHI/UMUL_LOHI or SDIVREM/UDIVREM to lower SREM/UREM.
+  setOperationAction(ISD::UMUL_LOHI, MVT::i32, Expand);
+  setOperationAction(ISD::SMUL_LOHI, MVT::i32, Expand);
+  setOperationAction(ISD::UMUL_LOHI, MVT::i64, Expand);
+  setOperationAction(ISD::SMUL_LOHI, MVT::i64, Expand);
+  setOperationAction(ISD::UDIVREM, MVT::i32, Expand);
+  setOperationAction(ISD::SDIVREM, MVT::i32, Expand);
+  setOperationAction(ISD::UDIVREM, MVT::i64, Expand);
+  setOperationAction(ISD::SDIVREM, MVT::i64, Expand);
   
   // We don't support sin/cos/sqrt/fmod
   setOperationAction(ISD::FSIN , MVT::f64, Expand);
@@ -265,6 +275,10 @@ PPCTargetLowering::PPCTargetLowering(PPCTargetMachine &TM)
       setOperationAction(ISD::EXTRACT_VECTOR_ELT, (MVT::ValueType)VT, Expand);
       setOperationAction(ISD::INSERT_VECTOR_ELT, (MVT::ValueType)VT, Expand);
       setOperationAction(ISD::BUILD_VECTOR, (MVT::ValueType)VT, Expand);
+      setOperationAction(ISD::UMUL_LOHI, (MVT::ValueType)VT, Expand);
+      setOperationAction(ISD::SMUL_LOHI, (MVT::ValueType)VT, Expand);
+      setOperationAction(ISD::UDIVREM, (MVT::ValueType)VT, Expand);
+      setOperationAction(ISD::SDIVREM, (MVT::ValueType)VT, Expand);
 
       setOperationAction(ISD::SCALAR_TO_VECTOR, (MVT::ValueType)VT, Expand);
     }