[llvm] [CodeGen] Fix compiler conditional combination (PR #94297)

[Keith Smiley via llvm-commits]

https://github.com/keith created https://github.com/llvm/llvm-project/pull/94297

Previously this assumed that `LLVM_ENABLE_ABI_BREAKING_CHECKS` would
always be enabled in this case, if it's not `TTI` does not exist.

Introduced in 7652a59407018c057cdc1163c9f64b5b6f0954eb


>From 04dcf36da19d4783f13d1d9a9b78ac892f5f5cd8 Mon Sep 17 00:00:00 2001
From: Keith Smiley <keithbsmiley at gmail.com>
Date: Tue, 4 Jun 2024 00:36:31 +0000
Subject: [PATCH] [CodeGen] Fix compiler conditional combination

Previously this assumed that `LLVM_ENABLE_ABI_BREAKING_CHECKS` would
always be enabled in this case, if it's not `TTI` does not exist.

Introduced in 7652a59407018c057cdc1163c9f64b5b6f0954eb
---
 llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index 91e14af190257..31ba833abe29d 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -536,7 +536,7 @@ void SelectionDAGISel::initializeAnalysisResults(
 
   SP = &FAM.getResult<SSPLayoutAnalysis>(Fn);
 
-#ifndef NDEBUG
+#if !defined(NDEBUG) && LLVM_ENABLE_ABI_BREAKING_CHECKS
   TTI = &FAM.getResult<TargetIRAnalysis>(Fn);
 #endif
 }
@@ -590,7 +590,7 @@ void SelectionDAGISel::initializeAnalysisResults(MachineFunctionPass &MFP) {
 
   SP = &MFP.getAnalysis<StackProtector>().getLayoutInfo();
 
-#ifndef NDEBUG
+#if !defined(NDEBUG) && LLVM_ENABLE_ABI_BREAKING_CHECKS
   TTI = &MFP.getAnalysis<TargetTransformInfoWrapperPass>().getTTI(Fn);
 #endif
 }