[llvm] [MIPS][CallSiteInfo][NFC] Fill CallSiteInfo only when needed (PR #86847)

[via llvm-commits]

https://github.com/Prabhuk created https://github.com/llvm/llvm-project/pull/86847

Argument-register pairs in CallSiteInfo is only needed when EmitCallSiteInfo
is on. Currently, the pairs are always pushed to the vector but only used
when EmitCallSiteInfo is on.

Don't fill the CallSiteInfo vector unless used.

Differential Revision: https://reviews.llvm.org/D107108?id=362887


>From f2b51c9af91bad4dfbec41ec7bace651cae40b62 Mon Sep 17 00:00:00 2001
From: Necip Fazil Yildiran <necip at google.com>
Date: Tue, 7 Nov 2023 10:49:30 -0800
Subject: [PATCH] [MIPS][CallSiteInfo][NFC] Fill CallSiteInfo only when needed

Argument-register pairs in CallSiteInfo is only needed when EmitCallSiteInfo
is on. Currently, the pairs are always pushed to the vector but only used
when EmitCallSiteInfo is on.

Don't fill the CallSiteInfo vector unless used.

Differential Revision: https://reviews.llvm.org/D107108?id=362887
---
 llvm/lib/Target/Mips/MipsISelLowering.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/llvm/lib/Target/Mips/MipsISelLowering.cpp b/llvm/lib/Target/Mips/MipsISelLowering.cpp
index 0a0d40751fcf05..72461ee2deae4f 100644
--- a/llvm/lib/Target/Mips/MipsISelLowering.cpp
+++ b/llvm/lib/Target/Mips/MipsISelLowering.cpp
@@ -3381,7 +3381,7 @@ MipsTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI,
 
       // Collect CSInfo about which register passes which parameter.
       const TargetOptions &Options = DAG.getTarget().Options;
-      if (Options.SupportsDebugEntryValues)
+      if (Options.EmitCallSiteInfo && Options.SupportsDebugEntryValues)
         CSInfo.emplace_back(VA.getLocReg(), i);
 
       continue;