From: Denis Antrushin <dantrushin@gmail.com>
Date: Mon, 30 Mar 2020 16:47:56 +0000 (+0300)
Subject: [Statepoint] Fix StatepointLoweringInfo::GCTransitionArgs initialization
X-Git-Tag: llvmorg-12-init~10634
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=47107dc3bda1f8c27c70c84f30aa0cdd41786e0d;p=platform%2Fupstream%2Fllvm.git

[Statepoint] Fix StatepointLoweringInfo::GCTransitionArgs initialization

Summary:
In method SelectionDAGBuilder::LowerStatepoint, array SI.GCTransitionArgs
is initialized from wrong part of ImmutableStatepoint class.
We copy gc args instead of transitions args.

Reviewers: reames, skatkov

Subscribers: hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D77075
---

diff --git a/llvm/lib/CodeGen/SelectionDAG/StatepointLowering.cpp b/llvm/lib/CodeGen/SelectionDAG/StatepointLowering.cpp
index 15c6658..8904ab3 100644
--- a/llvm/lib/CodeGen/SelectionDAG/StatepointLowering.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/StatepointLowering.cpp
@@ -848,8 +848,8 @@ SelectionDAGBuilder::LowerStatepoint(ImmutableStatepoint ISP,
 
   SI.GCArgs = ArrayRef<const Use>(ISP.gc_args_begin(), ISP.gc_args_end());
   SI.StatepointInstr = ISP.getInstruction();
-  SI.GCTransitionArgs =
-      ArrayRef<const Use>(ISP.gc_args_begin(), ISP.gc_args_end());
+  SI.GCTransitionArgs = ArrayRef<const Use>(ISP.gc_transition_args_begin(),
+                                            ISP.gc_transition_args_end());
   SI.ID = ISP.getID();
   SI.DeoptState = ArrayRef<const Use>(ISP.deopt_begin(), ISP.deopt_end());
   SI.StatepointFlags = ISP.getFlags();