From 92eafd90273fe162d82b1927d2c237f6b5e0ce64 Mon Sep 17 00:00:00 2001 From: Jim Grosbach Date: Thu, 27 May 2010 18:52:11 +0000 Subject: hook ISD::STACKADDR to an intrinsic git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104869 91177308-0d34-0410-b5e6-96231b3b80d8 --- include/llvm/Intrinsics.td | 5 +++-- lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp | 4 ++++ 2 files changed, 7 insertions(+), 2 deletions(-) diff --git a/include/llvm/Intrinsics.td b/include/llvm/Intrinsics.td index 444f514..42c16c3 100644 --- a/include/llvm/Intrinsics.td +++ b/include/llvm/Intrinsics.td @@ -197,12 +197,13 @@ def int_gcwrite : Intrinsic<[], def int_returnaddress : Intrinsic<[llvm_ptr_ty], [llvm_i32_ty], [IntrNoMem]>; def int_frameaddress : Intrinsic<[llvm_ptr_ty], [llvm_i32_ty], [IntrNoMem]>; -// Note: we treat stacksave/stackrestore as writemem because we don't otherwise -// model their dependencies on allocas. +// Note: we treat stacksave/stackrestore and stackaddr as writemem because we +// don't otherwise model their dependencies on allocas. def int_stacksave : Intrinsic<[llvm_ptr_ty]>, GCCBuiltin<"__builtin_stack_save">; def int_stackrestore : Intrinsic<[], [llvm_ptr_ty]>, GCCBuiltin<"__builtin_stack_restore">; +def int_stackaddress : Intrinsic<[llvm_ptr_ty], []>; // IntrWriteArgMem is more pessimistic than strictly necessary for prefetch, // however it does conveniently prevent the prefetch from being reordered diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp index fbe601f..a0cd232 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp @@ -3756,6 +3756,10 @@ SelectionDAGBuilder::visitIntrinsicCall(const CallInst &I, unsigned Intrinsic) { setValue(&I, DAG.getNode(ISD::FRAMEADDR, dl, TLI.getPointerTy(), getValue(I.getOperand(1)))); return 0; + case Intrinsic::stackaddress: + setValue(&I, DAG.getNode(ISD::STACKADDR, dl, TLI.getPointerTy(), getRoot(), + getValue(I.getOperand(1)))); + return 0; case Intrinsic::setjmp: return "_setjmp"+!TLI.usesUnderscoreSetJmp(); case Intrinsic::longjmp: -- cgit v1.1