maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

[Mips] Add support for llvm.thread.pointer intrinsic. 

This will be used to implement __builtin_thread_pointer in clang.

Differential Revision: http://reviews.llvm.org/D19569

llvm-svn: 267743
This commit is contained in:
Marcin Koscielnicki 2016-04-27 17:21:49 +00:00
parent 88017c08a6
commit 7efdca5622
2 changed files with 16 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
llvm/lib/Target/Mips/MipsSEISelLowering.cpp
View File

@ -2166,6 +2166,10 @@ SDValue MipsSETargetLowering::lowerINTRINSIC_WO_CHAIN(SDValue Op,
case Intrinsic::mips_xori_b:
return DAG.getNode(ISD::XOR, DL, Op->getValueType(0),
Op->getOperand(1), lowerMSASplatImm(Op, 2, DAG));
case Intrinsic::thread_pointer: {
EVT PtrVT = getPointerTy(DAG.getDataLayout());
return DAG.getNode(MipsISD::ThreadPointer, DL, PtrVT);
}
}
}

12
llvm/test/CodeGen/Mips/thread-pointer.ll Normal file
View File

@ -0,0 +1,12 @@
; RUN: llc -march=mips < %s | FileCheck %s
; RUN: llc -march=mips64 < %s | FileCheck %s
; RUN: llc -march=mipsel < %s | FileCheck %s
; RUN: llc -march=mips64el < %s | FileCheck %s
declare i8* @llvm.thread.pointer() nounwind readnone
define i8* @thread_pointer() {
; CHECK: rdhwr $3, $29
%1 = tail call i8* @llvm.thread.pointer()
ret i8* %1
}