From cc2912ac989c19c2a35b1d13c86ad1eeee6124e3 Mon Sep 17 00:00:00 2001
From: Maria Kotsifakou <kotsifa2@illinois.edu>
Date: Wed, 9 Aug 2017 19:09:55 -0500
Subject: [PATCH] Bug fix: no code generation should be attempted by the X86
backend for allocation nodes.
---
llvm/lib/Transforms/DFG2LLVM_X86/DFG2LLVM_X86.cpp | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/llvm/lib/Transforms/DFG2LLVM_X86/DFG2LLVM_X86.cpp b/llvm/lib/Transforms/DFG2LLVM_X86/DFG2LLVM_X86.cpp
index 13eef916e8..9f94bf237d 100644
--- a/llvm/lib/Transforms/DFG2LLVM_X86/DFG2LLVM_X86.cpp
+++ b/llvm/lib/Transforms/DFG2LLVM_X86/DFG2LLVM_X86.cpp
@@ -1659,6 +1659,16 @@ void CGT_X86::codeGen(DFLeafNode* N) {
return;
}
+ // At this point, the X86 backend does not support code generation for
+ // the case where allocation node is used, so we skip. This means that a
+ // CPU version will not be created, and therefore code generation will
+ // only succeed if another backend (nvptx or spir) has been invoked to
+ // generate a node function for the node including the allocation node.
+ if (N->isAllocationNode()) {
+ DEBUG(errs() << "Skipping allocation node\n");
+ return;
+ }
+
// Check if clone already exists. If it does, it means we have visited this
// function before and nothing else needs to be done for this leaf node.
// if(N->getGenFunc() != NULL)
--
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