[LLVM] add D80101 & D84031

deps/llvm.mk

@@ -430,6 +430,8 @@ $(eval $(call LLVM_PATCH,llvm9-D71443-PPC-MC-redef-symbol)) # remove for 10.0
 $(eval $(call LLVM_PATCH,llvm-9.0-D78196)) # remove for 11.0
 $(eval $(call LLVM_PATCH,llvm-julia-tsan-custom-as))
 $(eval $(call LLVM_PATCH,llvm-9.0-D85499))
+$(eval $(call LLVM_PATCH,llvm-D80101))
+$(eval $(call LLVM_PATCH,llvm-D84031))
 endif # LLVM_VER 9.0
 
 ifeq ($(LLVM_VER_SHORT),10.0)
@@ -445,6 +447,8 @@ $(eval $(call LLVM_PATCH,llvm-D75072-SCEV-add-type))
 $(eval $(call LLVM_PATCH,llvm-10.0-PPC_SELECT_CC)) # delete for LLVM 11
 $(eval $(call LLVM_PATCH,llvm-10.0-PPC-LI-Elimination)) # delete for LLVM 11
 $(eval $(call LLVM_PATCH,llvm-julia-tsan-custom-as))
+$(eval $(call LLVM_PATCH,llvm-D80101))
+$(eval $(call LLVM_PATCH,llvm-D84031))
 endif # LLVM_VER 10.0
 
 ifeq ($(LLVM_VER_SHORT),11.0)

deps/patches/llvm-D80101.patch

@@ -0,0 +1,13 @@
+diff --git a/lib/CodeGen/StackColoring.cpp b/lib/CodeGen/StackColoring.cpp
+index 9d4fdc6b624..14b52e0ca33 100644
+--- a/lib/CodeGen/StackColoring.cpp
++++ b/lib/CodeGen/StackColoring.cpp
+@@ -913,6 +913,8 @@ void StackColoring::remapInstructions(DenseMap<int, int> &SlotRemap) {
+     assert(To && From && "Invalid allocation object");
+     Allocas[From] = To;
+
++    const_cast<AllocaInst*>(To)->moveBefore(const_cast<Instruction*>(&*To->getParent()->getFirstInsertionPt()));
++
+     // AA might be used later for instruction scheduling, and we need it to be
+     // able to deduce the correct aliasing releationships between pointers
+     // derived from the alloca being remapped and the target of that remapping.

deps/patches/llvm-D84031.patch

@@ -0,0 +1,10 @@
+--- a/lib/CodeGen/CodeGenPrepare.cpp
++++ b/lib/CodeGen/CodeGenPrepare.cpp
+@@ -540,6 +540,7 @@
+     LargeOffsetGEPID.clear();
+   }
+
++  NewGEPBases.clear();
+   SunkAddrs.clear();
+
+   if (!DisableBranchOpts) {