From: Dominik Montada <dominik.montada@gmail.com>
Date: Thu, 30 Jan 2020 13:25:10 +0000 (-0500)
Subject: [GlobalISel] (fix) Use pointer type size for offset constant when lowering stores
X-Git-Tag: llvmorg-12-init~16310
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=dc141af7553871b94f0d7cb4b1f2096578a923be;p=platform%2Fupstream%2Fllvm.git

[GlobalISel] (fix) Use pointer type size for offset constant when lowering stores

Commit 9965b12fd1b was supposed to change the offset constant when
lowering load/stores, but only introduced this change for loads. This
patch adds the same fix for stores.
---

diff --git a/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp b/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
index 5eb87c2..1bdd8eb 100644
--- a/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
@@ -2346,8 +2346,8 @@ LegalizerHelper::lower(MachineInstr &MI, unsigned TypeIdx, LLT Ty) {
 
     // Generate the PtrAdd and truncating stores.
     LLT PtrTy = MRI.getType(PtrReg);
-    auto OffsetCst =
-        MIRBuilder.buildConstant(LLT::scalar(64), LargeSplitSize / 8);
+    auto OffsetCst = MIRBuilder.buildConstant(
+            LLT::scalar(PtrTy.getSizeInBits()), LargeSplitSize / 8);
     Register PtrAddReg = MRI.createGenericVirtualRegister(PtrTy);
     auto SmallPtr =
         MIRBuilder.buildPtrAdd(PtrAddReg, PtrReg, OffsetCst.getReg(0));