[llvm] 47107dc - [Statepoint] Fix StatepointLoweringInfo::GCTransitionArgs initialization

[Denis Antrushin via llvm-commits]

Author: Denis Antrushin
Date: 2020-03-31T11:45:06+03:00
New Revision: 47107dc3bda1f8c27c70c84f30aa0cdd41786e0d

URL: https://github.com/llvm/llvm-project/commit/47107dc3bda1f8c27c70c84f30aa0cdd41786e0d
DIFF: https://github.com/llvm/llvm-project/commit/47107dc3bda1f8c27c70c84f30aa0cdd41786e0d.diff

LOG: [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

Added: 
    

Modified: 
    llvm/lib/CodeGen/SelectionDAG/StatepointLowering.cpp

Removed: 
    


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diff  --git a/llvm/lib/CodeGen/SelectionDAG/StatepointLowering.cpp b/llvm/lib/CodeGen/SelectionDAG/StatepointLowering.cpp
index 15c66586ac02..8904ab345da7 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();