Commit 385fbc17 authored by Bill Wendling's avatar Bill Wendling
Browse files

Merging r155954: 

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r155954 | void | 2012-05-01 15:50:45 -0700 (Tue, 01 May 2012) | 3 lines

Strip the pointer casts off of allocas so that the selection DAG can find them.
PR10799

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llvm-svn: 155955
parent 3ff7fb0f

llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp

+1 −1
Original line number Diff line number Diff line
@@ -5050,7 +5050,7 @@ SelectionDAGBuilder::visitIntrinsicCall(const CallInst &I, unsigned Intrinsic) { 
  }

  case Intrinsic::gcroot:

    if (GFI) {

      const Value *Alloca = I.getArgOperand(0);

      const Value *Alloca = I.getArgOperand(0)->stripPointerCasts();

      const Constant *TypeMap = cast<Constant>(I.getArgOperand(1));



      FrameIndexSDNode *FI = cast<FrameIndexSDNode>(getValue(Alloca).getNode());

llvm/test/CodeGen/X86/GC/cg-O0.ll

0 → 100644
+17 −0
Original line number Diff line number Diff line 
; RUN: llc < %s -O0



define i32 @main() {

entry:

  call void @f()

  ret i32 0

}



define void @f() gc "ocaml" {

entry:

  %ptr.stackref = alloca i8*

  %gcroot = bitcast i8** %ptr.stackref to i8**

  call void @llvm.gcroot(i8** %gcroot, i8* null)

  ret void

}



declare void @llvm.gcroot(i8**, i8*) nounwind