[PATCH] D19054: [SystemZ] Support __builtin_thread_pointer.
Marcin KoĆcielnicki via llvm-commits
llvm-commits at lists.llvm.org
Tue Apr 19 18:09:37 PDT 2016
This revision was automatically updated to reflect the committed changes.
Closed by commit rL266844: [SystemZ] Add support for llvm.thread.pointer intrinsic. (authored by koriakin).
Changed prior to commit:
http://reviews.llvm.org/D19054?vs=53668&id=54306#toc
Repository:
rL LLVM
http://reviews.llvm.org/D19054
Files:
llvm/trunk/lib/Target/SystemZ/SystemZISelLowering.cpp
llvm/trunk/lib/Target/SystemZ/SystemZISelLowering.h
llvm/trunk/test/CodeGen/SystemZ/builtins.ll
Index: llvm/trunk/test/CodeGen/SystemZ/builtins.ll
===================================================================
--- llvm/trunk/test/CodeGen/SystemZ/builtins.ll
+++ llvm/trunk/test/CodeGen/SystemZ/builtins.ll
@@ -0,0 +1,14 @@
+; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
+
+; Function Attrs: nounwind readnone
+declare i8* @llvm.thread.pointer() #1
+
+define i8* @thread_pointer() {
+; CHECK: thread_pointer:
+; CHECK: ear [[REG1:%r[0-5]]], %a0
+; CHECK: sllg %r2, [[REG1]], 32
+; CHECK: ear %r2, %a1
+; CHECK: br %r14
+ %1 = tail call i8* @llvm.thread.pointer()
+ ret i8* %1
+}
Index: llvm/trunk/lib/Target/SystemZ/SystemZISelLowering.cpp
===================================================================
--- llvm/trunk/lib/Target/SystemZ/SystemZISelLowering.cpp
+++ llvm/trunk/lib/Target/SystemZ/SystemZISelLowering.cpp
@@ -2533,14 +2533,9 @@
return DAG.getCopyFromReg(Chain, DL, SystemZ::R2D, PtrVT, Glue);
}
-SDValue SystemZTargetLowering::lowerGlobalTLSAddress(GlobalAddressSDNode *Node,
- SelectionDAG &DAG) const {
- if (DAG.getTarget().Options.EmulatedTLS)
- return LowerToTLSEmulatedModel(Node, DAG);
- SDLoc DL(Node);
- const GlobalValue *GV = Node->getGlobal();
+SDValue SystemZTargetLowering::lowerThreadPointer(const SDLoc &DL,
+ SelectionDAG &DAG) const {
EVT PtrVT = getPointerTy(DAG.getDataLayout());
- TLSModel::Model model = DAG.getTarget().getTLSModel(GV);
// The high part of the thread pointer is in access register 0.
SDValue TPHi = DAG.getNode(SystemZISD::EXTRACT_ACCESS, DL, MVT::i32,
@@ -2555,7 +2550,19 @@
// Merge them into a single 64-bit address.
SDValue TPHiShifted = DAG.getNode(ISD::SHL, DL, PtrVT, TPHi,
DAG.getConstant(32, DL, PtrVT));
- SDValue TP = DAG.getNode(ISD::OR, DL, PtrVT, TPHiShifted, TPLo);
+ return DAG.getNode(ISD::OR, DL, PtrVT, TPHiShifted, TPLo);
+}
+
+SDValue SystemZTargetLowering::lowerGlobalTLSAddress(GlobalAddressSDNode *Node,
+ SelectionDAG &DAG) const {
+ if (DAG.getTarget().Options.EmulatedTLS)
+ return LowerToTLSEmulatedModel(Node, DAG);
+ SDLoc DL(Node);
+ const GlobalValue *GV = Node->getGlobal();
+ EVT PtrVT = getPointerTy(DAG.getDataLayout());
+ TLSModel::Model model = DAG.getTarget().getTLSModel(GV);
+
+ SDValue TP = lowerThreadPointer(DL, DAG);
// Get the offset of GA from the thread pointer, based on the TLS model.
SDValue Offset;
@@ -3396,6 +3403,9 @@
unsigned Id = cast<ConstantSDNode>(Op.getOperand(0))->getZExtValue();
switch (Id) {
+ case Intrinsic::thread_pointer:
+ return lowerThreadPointer(SDLoc(Op), DAG);
+
case Intrinsic::s390_vpdi:
return DAG.getNode(SystemZISD::PERMUTE_DWORDS, SDLoc(Op), Op.getValueType(),
Op.getOperand(1), Op.getOperand(2), Op.getOperand(3));
Index: llvm/trunk/lib/Target/SystemZ/SystemZISelLowering.h
===================================================================
--- llvm/trunk/lib/Target/SystemZ/SystemZISelLowering.h
+++ llvm/trunk/lib/Target/SystemZ/SystemZISelLowering.h
@@ -464,6 +464,7 @@
SDValue lowerTLSGetOffset(GlobalAddressSDNode *Node,
SelectionDAG &DAG, unsigned Opcode,
SDValue GOTOffset) const;
+ SDValue lowerThreadPointer(const SDLoc &DL, SelectionDAG &DAG) const;
SDValue lowerGlobalTLSAddress(GlobalAddressSDNode *Node,
SelectionDAG &DAG) const;
SDValue lowerBlockAddress(BlockAddressSDNode *Node,
-------------- next part --------------
A non-text attachment was scrubbed...
Name: D19054.54306.patch
Type: text/x-patch
Size: 3640 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20160420/a7dc0121/attachment.bin>
More information about the llvm-commits
mailing list