[llvm] [BrainF] Remove use of getSizeOf() (PR #222590)

[Nikita Popov via llvm-commits]

https://github.com/nikic created https://github.com/llvm/llvm-project/pull/222590

getSizeOf() is incompatible with ptradd. Also entirely unnecessary
here.

>From b65ed8aa0f582e0607394ab91bd9c36bf8dfdf74 Mon Sep 17 00:00:00 2001
From: Nikita Popov <npopov at redhat.com>
Date: Thu, 10 Sep 2026 12:25:57 +0200
Subject: [PATCH] [BrainF] Remove use of getSizeOf()

getSizeOf() is incompatible with ptradd. Also entirely unnecessary
here.
---
 llvm/examples/BrainF/BrainF.cpp | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/llvm/examples/BrainF/BrainF.cpp b/llvm/examples/BrainF/BrainF.cpp
index 2a3c76021b17b..14e135eb464c8 100644
--- a/llvm/examples/BrainF/BrainF.cpp
+++ b/llvm/examples/BrainF/BrainF.cpp
@@ -90,8 +90,7 @@ void BrainF::header(LLVMContext& C) {
   ConstantInt *val_mem = ConstantInt::get(C, APInt(32, memtotal));
   Type* IntPtrTy = IntegerType::getInt32Ty(C);
   Type* Int8Ty = IntegerType::getInt8Ty(C);
-  Constant* allocsize = ConstantExpr::getSizeOf(Int8Ty);
-  allocsize = ConstantExpr::getTruncOrBitCast(allocsize, IntPtrTy);
+  Constant* allocsize = ConstantInt::get(IntPtrTy, 1);
   ptr_arr = builder->CreateMalloc(IntPtrTy, Int8Ty, allocsize, val_mem, nullptr,
                                   "arr");