Default ISD::PREFETCH to expand.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48169 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/SelectionDAG/TargetLowering.cpp b/lib/CodeGen/SelectionDAG/TargetLowering.cpp
index 0025766f749231a3763b8662f48bb15be0097a55..7900e97b248b97cb06e73f4e5a9feba0b1b3cc24 100644 (file)
--- a/lib/CodeGen/SelectionDAG/TargetLowering.cpp
+++ b/lib/CodeGen/SelectionDAG/TargetLowering.cpp
@@ -178,6 +178,9 @@ TargetLowering::TargetLowering(TargetMachine &tm)
     // These operations default to expand.
     setOperationAction(ISD::FGETSIGN, (MVT::ValueType)VT, Expand);
   }
+
+  // Most targets ignore the @llvm.prefetch intrinsic.
+  setOperationAction(ISD::PREFETCH, MVT::Other, Expand);
   
   // ConstantFP nodes default to expand.  Targets can either change this to 
   // Legal, in which case all fp constants are legal, or use addLegalFPImmediate

diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp
index 67aeebf57cc61914b1882185b765e42009ad7c7e..0326ecf43e421a53438b0934622ac2bb08db8556 100644 (file)
--- a/lib/Target/ARM/ARMISelLowering.cpp
+++ b/lib/Target/ARM/ARMISelLowering.cpp
@@ -211,7 +211,6 @@ ARMTargetLowering::ARMTargetLowering(TargetMachine &TM)
   setOperationAction(ISD::STACKRESTORE,       MVT::Other, Expand);
   setOperationAction(ISD::DYNAMIC_STACKALLOC, MVT::i32  , Expand);
   setOperationAction(ISD::MEMBARRIER        , MVT::Other, Expand);
-  setOperationAction(ISD::PREFETCH          , MVT::Other, Expand);
 
   if (!Subtarget->hasV6Ops()) {
     setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i16, Expand);

diff --git a/lib/Target/Alpha/AlphaISelLowering.cpp b/lib/Target/Alpha/AlphaISelLowering.cpp
index 87f1eec1370c6d74de84c551f38fd116a1f8ce57..d208f59e4f6d11697922425d16b59b2c1fd64d8c 100644 (file)
--- a/lib/Target/Alpha/AlphaISelLowering.cpp
+++ b/lib/Target/Alpha/AlphaISelLowering.cpp
@@ -116,7 +116,6 @@ AlphaTargetLowering::AlphaTargetLowering(TargetMachine &TM) : TargetLowering(TM)
   setOperationAction(ISD::STACKSAVE, MVT::Other, Expand); 
   setOperationAction(ISD::STACKRESTORE, MVT::Other, Expand);
   setOperationAction(ISD::DYNAMIC_STACKALLOC, MVT::i64, Expand);
-  setOperationAction(ISD::PREFETCH, MVT::Other, Expand);
 
   // We want to legalize GlobalAddress and ConstantPool and
   // ExternalSymbols nodes into the appropriate instructions to

diff --git a/lib/Target/CellSPU/SPUISelLowering.cpp b/lib/Target/CellSPU/SPUISelLowering.cpp
index e04722ffe1eccddedda9601c4d56255b82b13208..a6c0b8751b192e48c86986b62a559acae289f316 100644 (file)
--- a/lib/Target/CellSPU/SPUISelLowering.cpp
+++ b/lib/Target/CellSPU/SPUISelLowering.cpp
@@ -321,7 +321,6 @@ SPUTargetLowering::SPUTargetLowering(SPUTargetMachine &TM)
   setOperationAction(ISD::STACKRESTORE      , MVT::Other, Expand);
   setOperationAction(ISD::DYNAMIC_STACKALLOC, MVT::i32  , Expand);
   setOperationAction(ISD::DYNAMIC_STACKALLOC, MVT::i64  , Expand);
-  setOperationAction(ISD::PREFETCH          , MVT::Other, Expand);
 
   // Cell SPU has instructions for converting between i64 and fp.
   setOperationAction(ISD::FP_TO_SINT, MVT::i64, Custom);

diff --git a/lib/Target/IA64/IA64ISelLowering.cpp b/lib/Target/IA64/IA64ISelLowering.cpp
index dd330db33e0a48ad5bf2e43c4235f3cde5d3edbf..2ec08b60b6f3da8fc76469f8eef51f7895368c3e 100644 (file)
--- a/lib/Target/IA64/IA64ISelLowering.cpp
+++ b/lib/Target/IA64/IA64ISelLowering.cpp
@@ -109,7 +109,6 @@ IA64TargetLowering::IA64TargetLowering(TargetMachine &TM)
       setOperationAction(ISD::STACKSAVE, MVT::Other, Expand);
       setOperationAction(ISD::STACKRESTORE, MVT::Other, Expand);
       setOperationAction(ISD::DYNAMIC_STACKALLOC, MVT::i64, Expand);
-      setOperationAction(ISD::PREFETCH          , MVT::Other, Expand);
 
       // Thread Local Storage
       setOperationAction(ISD::GlobalTLSAddress, MVT::i64, Custom);

diff --git a/lib/Target/Mips/MipsISelLowering.cpp b/lib/Target/Mips/MipsISelLowering.cpp
index 6e2a4f7cc85dbf0066aedb877c70fb32bdee67ba..486596928a47362787517d500ec95bcf63b8d40c 100644 (file)
--- a/lib/Target/Mips/MipsISelLowering.cpp
+++ b/lib/Target/Mips/MipsISelLowering.cpp
@@ -84,7 +84,6 @@ MipsTargetLowering(MipsTargetMachine &TM): TargetLowering(TM)
   setOperationAction(ISD::MEMSET, MVT::Other, Expand);
   setOperationAction(ISD::MEMCPY, MVT::Other, Expand);
   setOperationAction(ISD::MEMBARRIER, MVT::Other, Expand);
-  setOperationAction(ISD::PREFETCH, MVT::Other, Expand);
 
   setOperationAction(ISD::CTPOP, MVT::i32, Expand);
   setOperationAction(ISD::CTTZ , MVT::i32, Expand);

diff --git a/lib/Target/PowerPC/PPCISelLowering.cpp b/lib/Target/PowerPC/PPCISelLowering.cpp
index 56837b9d6be75ec6ee19a409db3c5a53712bfc22..32787bcc75b7a15e159ae6c994f6a6f6fa370dd2 100644 (file)
--- a/lib/Target/PowerPC/PPCISelLowering.cpp
+++ b/lib/Target/PowerPC/PPCISelLowering.cpp
@@ -82,7 +82,6 @@ PPCTargetLowering::PPCTargetLowering(PPCTargetMachine &TM)
   setOperationAction(ISD::MEMSET, MVT::Other, Expand);
   setOperationAction(ISD::MEMCPY, MVT::Other, Expand);
   setOperationAction(ISD::MEMBARRIER, MVT::Other, Expand);
-  setOperationAction(ISD::PREFETCH, MVT::Other, Expand);
 
   // PowerPC has no SREM/UREM instructions
   setOperationAction(ISD::SREM, MVT::i32, Expand);

diff --git a/lib/Target/Sparc/SparcISelDAGToDAG.cpp b/lib/Target/Sparc/SparcISelDAGToDAG.cpp
index 08af60779b2db9d8e60dc7577cfe51bdab7bb8b1..95f4e0867307624b8325e6412b8990079755f0dd 100644 (file)
--- a/lib/Target/Sparc/SparcISelDAGToDAG.cpp
+++ b/lib/Target/Sparc/SparcISelDAGToDAG.cpp
@@ -197,7 +197,6 @@ SparcTargetLowering::SparcTargetLowering(TargetMachine &TM)
   setOperationAction(ISD::MEMSET, MVT::Other, Expand);
   setOperationAction(ISD::MEMCPY, MVT::Other, Expand);
   setOperationAction(ISD::MEMBARRIER, MVT::Other, Expand);
-  setOperationAction(ISD::PREFETCH, MVT::Other, Expand);
 
   setOperationAction(ISD::FSIN , MVT::f64, Expand);
   setOperationAction(ISD::FCOS , MVT::f64, Expand);

diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index 7b3b98f74360583881da429465f6bb0bf3473872..e2dc29c7369e8ce6e80864db78aa5bfc4a759d07 100644 (file)
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -286,8 +286,8 @@ X86TargetLowering::X86TargetLowering(TargetMachine &TM)
   setOperationAction(ISD::MEMSET          , MVT::Other, Custom);
   setOperationAction(ISD::MEMCPY          , MVT::Other, Custom);
 
-  if (!Subtarget->hasSSE1())
-    setOperationAction(ISD::PREFETCH      , MVT::Other, Expand);
+  if (Subtarget->hasSSE1())
+    setOperationAction(ISD::PREFETCH      , MVT::Other, Legal);
 
   if (!Subtarget->hasSSE2())
     setOperationAction(ISD::MEMBARRIER    , MVT::Other, Expand);