[llvm] 9965b12 - Use pointer type size for offset constant when lowering load/stores

[Matt Arsenault via llvm-commits]

Author: Dominik Montada
Date: 2020-01-27T06:55:32-08:00
New Revision: 9965b12fd1bcb78396fbea2c28d80068e43b31a3

URL: https://github.com/llvm/llvm-project/commit/9965b12fd1bcb78396fbea2c28d80068e43b31a3
DIFF: https://github.com/llvm/llvm-project/commit/9965b12fd1bcb78396fbea2c28d80068e43b31a3.diff

LOG: Use pointer type size for offset constant when lowering load/stores

Added: 
    

Modified: 
    llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp

Removed: 
    


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diff  --git a/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp b/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
index a6fe2c395056..8245fa15f061 100644
--- a/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
@@ -2273,8 +2273,8 @@ LegalizerHelper::lower(MachineInstr &MI, unsigned TypeIdx, LLT Ty) {
         auto LargeLoad =
             MIRBuilder.buildLoad(LargeLdReg, PtrReg, *LargeMMO);
 
-        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));