[llvm] y (PR #106543)

[Thomas Preud'homme via llvm-commits]

https://github.com/RoboTux created https://github.com/llvm/llvm-project/pull/106543

LLVM has a CMake variable to control whether to consider logf128
constant folding which libAnalysis ignores. This patch changes the
logf128 check to rely on the global LLVM_HAS_LOGF128 setting made in
config-ix.cmake.


>From 42d3cccffd203ff6dc967d4243588ca466c0faf7 Mon Sep 17 00:00:00 2001
From: Thomas Preud'homme <thomas.preudhomme at arm.com>
Date: Thu, 29 Aug 2024 12:46:22 +0100
Subject: [PATCH] [Analysis] Guard logf128 cst folding

LLVM has a CMake variable to control whether to consider logf128
constant folding which libAnalysis ignores. This patch changes the
logf128 check to rely on the global LLVM_HAS_LOGF128 setting made in
config-ix.cmake.
---
 llvm/lib/Analysis/CMakeLists.txt | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/llvm/lib/Analysis/CMakeLists.txt b/llvm/lib/Analysis/CMakeLists.txt
index 393803fad89383..99ce0acdabe1ba 100644
--- a/llvm/lib/Analysis/CMakeLists.txt
+++ b/llvm/lib/Analysis/CMakeLists.txt
@@ -163,8 +163,6 @@ add_llvm_component_library(LLVMAnalysis
   TargetParser
   )
 
-include(CheckCXXSymbolExists)
-check_cxx_symbol_exists(logf128 math.h HAS_LOGF128)
-if(HAS_LOGF128)
- target_compile_definitions(LLVMAnalysis PRIVATE HAS_LOGF128)
+if(LLVM_HAS_LOGF128)
+  target_compile_definitions(LLVMAnalysis PRIVATE HAS_LOGF128)
 endif()