vendor/llvm-project/llvmorg-15-init-15358-g53dc0f107877

1 files changed, 8 insertions, 2 deletions

diff --git a/llvm/lib/CodeGen/StackColoring.cpp b/llvm/lib/CodeGen/StackColoring.cpp
index 623d5da9831e..11c6bdc69956 100644
--- a/llvm/lib/CodeGen/StackColoring.cpp
+++ b/llvm/lib/CodeGen/StackColoring.cpp
@@ -36,14 +36,12 @@
 #include "llvm/CodeGen/MachineMemOperand.h"
 #include "llvm/CodeGen/MachineOperand.h"
 #include "llvm/CodeGen/Passes.h"
-#include "llvm/CodeGen/SelectionDAGNodes.h"
 #include "llvm/CodeGen/SlotIndexes.h"
 #include "llvm/CodeGen/TargetOpcodes.h"
 #include "llvm/CodeGen/WinEHFuncInfo.h"
 #include "llvm/Config/llvm-config.h"
 #include "llvm/IR/Constants.h"
 #include "llvm/IR/DebugInfoMetadata.h"
-#include "llvm/IR/Function.h"
 #include "llvm/IR/Instructions.h"
 #include "llvm/IR/Metadata.h"
 #include "llvm/IR/Use.h"
@@ -1145,6 +1143,9 @@ void StackColoring::remapInstructions(DenseMap<int, int> &SlotRemap) {
   LLVM_DEBUG(dbgs() << "Fixed " << FixedMemOp << " machine memory operands.\n");
   LLVM_DEBUG(dbgs() << "Fixed " << FixedDbg << " debug locations.\n");
   LLVM_DEBUG(dbgs() << "Fixed " << FixedInstr << " machine instructions.\n");
+  (void) FixedMemOp;
+  (void) FixedDbg;
+  (void) FixedInstr;
 }
 
 void StackColoring::removeInvalidSlotRanges() {
@@ -1319,6 +1320,11 @@ bool StackColoring::runOnMachineFunction(MachineFunction &Func) {
 
         int FirstSlot = SortedSlots[I];
         int SecondSlot = SortedSlots[J];
+
+        // Objects with different stack IDs cannot be merged.
+        if (MFI->getStackID(FirstSlot) != MFI->getStackID(SecondSlot))
+          continue;
+
         LiveInterval *First = &*Intervals[FirstSlot];
         LiveInterval *Second = &*Intervals[SecondSlot];
         auto &FirstS = LiveStarts[FirstSlot];