From 1d26c7e4ff8bb9af770eaffda09cb0aa90164a4a Mon Sep 17 00:00:00 2001
From: Petar Jovanovic <petar.jovanovic@mips.com>
Date: Tue, 9 Jan 2018 15:08:37 +0000
Subject: [EarlyCSE] Salvage debug info during DCE

EarlyCSE did not try to salvage debug info during erasing of instructions.
This change fixes it.

Patch by Djordje Todorovic.

Differential Revision: https://reviews.llvm.org/D41496

llvm-svn: 322083
---
 llvm/lib/Transforms/Scalar/EarlyCSE.cpp | 1 +
 1 file changed, 1 insertion(+)

(limited to 'llvm/lib/Transforms')

diff --git a/llvm/lib/Transforms/Scalar/EarlyCSE.cpp b/llvm/lib/Transforms/Scalar/EarlyCSE.cpp
index 5798e1c4ee9..342a6d08fa5 100644
--- a/llvm/lib/Transforms/Scalar/EarlyCSE.cpp
+++ b/llvm/lib/Transforms/Scalar/EarlyCSE.cpp
@@ -717,6 +717,7 @@ bool EarlyCSE::processNode(DomTreeNode *Node) {
     // Dead instructions should just be removed.
     if (isInstructionTriviallyDead(Inst, &TLI)) {
       DEBUG(dbgs() << "EarlyCSE DCE: " << *Inst << '\n');
+      salvageDebugInfo(*Inst);
       removeMSSA(Inst);
       Inst->eraseFromParent();
       Changed = true;
-- 
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