[llvm] [aarch64] Unguard GEPOpt from O3 (PR #86588)

[Nathan Lanza via llvm-commits]

https://github.com/lanza created https://github.com/llvm/llvm-project/pull/86588

This chunk of code currently runs only if the optimization mode is O3
AND the EnableGEPOpt flag is set. Given that this is the only use case
for the EnableGEPOpt flag, the guarding against O3 is kinda pointless.
IF the user wants to enable it then the flag should be sufficient.


>From 649962d4244be23a811e195adcbe133aa3ea9e24 Mon Sep 17 00:00:00 2001
From: Nathan Lanza <nathanlanza at gmail.com>
Date: Mon, 25 Mar 2024 21:43:18 +0000
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Created using spr 1.3.5
---
 llvm/lib/Target/AArch64/AArch64TargetMachine.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/llvm/lib/Target/AArch64/AArch64TargetMachine.cpp b/llvm/lib/Target/AArch64/AArch64TargetMachine.cpp
index 08238fdf167bf2..7d4a57d792a191 100644
--- a/llvm/lib/Target/AArch64/AArch64TargetMachine.cpp
+++ b/llvm/lib/Target/AArch64/AArch64TargetMachine.cpp
@@ -603,7 +603,7 @@ void AArch64PassConfig::addIRPasses() {
       addPass(createFalkorMarkStridedAccessesPass());
   }
 
-  if (TM->getOptLevel() == CodeGenOptLevel::Aggressive && EnableGEPOpt) {
+  if (EnableGEPOpt) {
     // Call SeparateConstOffsetFromGEP pass to extract constants within indices
     // and lower a GEP with multiple indices to either arithmetic operations or
     // multiple GEPs with single index.