commit 1768957c822faa1425285d2c49b4e73d9b4ee886
author Petar Jovanovic <petar.jovanovic@mips.com> Wed Feb 14 13:10:35 2018 +0000
committer Petar Jovanovic <petar.jovanovic@mips.com> Wed Feb 14 13:10:35 2018 +0000
tree 03a4e65689b40e8062769dbeceda41d79f1b5d38
parent 782bfcfd0ce307e0252d0e4902d752212a07b640

[Utils] Salvage the debug info of DCE'ed 'and' instructions

Preserve debug info from a dead 'and' instruction with a constant.

Patch by Djordje Todorovic.

Differential Revision: https://reviews.llvm.org/D43163

llvm-svn: 325119

llvm/lib/Transforms/Utils/Local.cpp

diff --git a/llvm/lib/Transforms/Utils/Local.cpp b/llvm/lib/Transforms/Utils/Local.cpp
index 34f7d41..39d66e0 100644
--- a/llvm/lib/Transforms/Utils/Local.cpp
+++ b/llvm/lib/Transforms/Utils/Local.cpp
@@ -1564,6 +1564,9 @@
       case Instruction::Or:
         applyOps(DII, {dwarf::DW_OP_constu, Val, dwarf::DW_OP_or});
         break;
+      case Instruction::And:
+        applyOps(DII, {dwarf::DW_OP_constu, Val, dwarf::DW_OP_and});
+        break;
       case Instruction::Xor:
         applyOps(DII, {dwarf::DW_OP_constu, Val, dwarf::DW_OP_xor});
         break;