From: Adrian Prantl <aprantl@apple.com>
Date: Fri, 28 Jul 2017 22:36:55 +0000 (+0000)
Subject: Remove the unused DBG_VALUE offset parameter from RegAllocFast (NFC)
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=9a729b3c67b0b9aab34f8bfe6e1f9b82c6f51946;p=llvm

Remove the unused DBG_VALUE offset parameter from RegAllocFast (NFC)

Followup to r309426.
rdar://problem/33580047

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@309446 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/RegAllocFast.cpp b/lib/CodeGen/RegAllocFast.cpp
index d5538be4bba..fd6c2877667 100644
--- a/lib/CodeGen/RegAllocFast.cpp
+++ b/lib/CodeGen/RegAllocFast.cpp
@@ -879,7 +879,9 @@ void RAFast::AllocateBasicBlock() {
             else {
               // Modify DBG_VALUE now that the value is in a spill slot.
               bool IsIndirect = MI->isIndirectDebugValue();
-              uint64_t Offset = IsIndirect ? MI->getOperand(1).getImm() : 0;
+              if (IsIndirect)
+                assert(MI->getOperand(1).getImm() == 0 &&
+                       "DBG_VALUE with nonzero offset");
               const MDNode *Var = MI->getDebugVariable();
               const MDNode *Expr = MI->getDebugExpression();
               DebugLoc DL = MI->getDebugLoc();
@@ -890,7 +892,7 @@ void RAFast::AllocateBasicBlock() {
               MachineInstr *NewDV = BuildMI(*MBB, MBB->erase(MI), DL,
                                             TII->get(TargetOpcode::DBG_VALUE))
                                         .addFrameIndex(SS)
-                                        .addImm(Offset)
+                                        .addImm(0U)
                                         .addMetadata(Var)
                                         .addMetadata(Expr);
               DEBUG(dbgs() << "Modifying debug info due to spill:"