From cf0c9479deedcbfc0592ac6d207b22ebf3655567 Mon Sep 17 00:00:00 2001
From: dec05eba <dec05eba@protonmail.com>
Date: Tue, 27 Jun 2023 02:27:44 +0200
Subject: Add --cpu=baseline|native option, propagate sanitize setting to sub
 projects

---
 backend/BackendUtils.cpp |  2 ++
 backend/ninja/Ninja.cpp  | 42 +++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 43 insertions(+), 1 deletion(-)

(limited to 'backend')

diff --git a/backend/BackendUtils.cpp b/backend/BackendUtils.cpp
index caeea3c..1109bf1 100644
--- a/backend/BackendUtils.cpp
+++ b/backend/BackendUtils.cpp
@@ -113,6 +113,8 @@ namespace backend
                         backend::Ninja *subProject = new backend::Ninja();
                         
                         SibsConfig *subProjectConfig = new SibsConfig(sibsConfig.getCompiler(), file->path, sibsConfig.getOptimizationLevel(), false);
+                        subProjectConfig->setSanitize(sibsConfig.getSanitize());
+                        subProjectConfig->cpu = sibsConfig.cpu;
                         subProjectConfig->packaging = sibsConfig.packaging;
                         subProjectConfig->platform = sibsConfig.platform;
                         subProjectConfig->bundling = sibsConfig.bundling;
diff --git a/backend/ninja/Ninja.cpp b/backend/ninja/Ninja.cpp
index c66907c..802ffd8 100644
--- a/backend/ninja/Ninja.cpp
+++ b/backend/ninja/Ninja.cpp
@@ -379,6 +379,37 @@ namespace backend
         return {};
     }
 
+    static ninja::NinjaArg getCompilerCpuFlag(const SibsConfig &config)
+    {
+        // TODO: Also use -mcpu=native on non x86 systems
+        switch(config.getCompiler()) {
+            case Compiler::GCC:
+            case Compiler::MINGW_W64: {
+                switch(config.cpu) {
+                    case sibs::CPU_INVALID:
+                    case sibs::CPU_BASELINE:
+                        return {};
+                    case sibs::CPU_NATIVE:
+                        return ninja::NinjaArg::createRaw("-march=native");
+                }
+                break;
+            }
+            case Compiler::MSVC: {
+                // msvc doesn't have any equivalent to gcc -march=native.
+                // TODO: Detect features at runtime here to manually add the cpu feature flags instead
+                switch(config.cpu) {
+                    case sibs::CPU_INVALID:
+                    case sibs::CPU_BASELINE:
+                        return {};
+                    case sibs::CPU_NATIVE:
+                        return ninja::NinjaArg::createRaw("-march=native");
+                }
+                break;
+            }
+        }
+        return {};
+    }
+
     static vector<ninja::NinjaArg> getCompilerOptimizationFlags(const SibsConfig &config)
     {
         switch (config.getCompiler())
@@ -1017,6 +1048,10 @@ namespace backend
                     allLinkerFlags += " " + optFlag.arg;
                 }
 
+                ninja::NinjaArg cpuFlag = getCompilerCpuFlag(config);
+                if(cpuFlag.type != ninja::NinjaArg::Type::NONE)
+                    compileCCommand.push_back(std::move(cpuFlag));
+
                 ninja::NinjaArg sanitizerFlag = getCompilerSanitizerFlag(config);
                 if(sanitizerFlag.type != ninja::NinjaArg::Type::NONE)
                     compileCCommand.push_back(std::move(sanitizerFlag));
@@ -1075,6 +1110,10 @@ namespace backend
                     allLinkerFlags += " " + optFlag.arg;
                 }
 
+                ninja::NinjaArg cpuFlag = getCompilerCpuFlag(config);
+                if(cpuFlag.type != ninja::NinjaArg::Type::NONE)
+                    compileCCommand.push_back(std::move(cpuFlag));
+
                 ninja::NinjaArg sanitizerFlag = getCompilerSanitizerFlag(config);
                 if(sanitizerFlag.type != ninja::NinjaArg::Type::NONE)
                     compileCCommand.push_back(std::move(sanitizerFlag));
@@ -1764,7 +1803,8 @@ namespace backend
         SibsTestConfig sibsTestConfig(config.getCompiler(), testSourceDirNative.data, config.getOptimizationLevel());
         sibsTestConfig.platform = config.platform;
         sibsTestConfig.setSanitize(config.getSanitize());
-        sibsTestConfig.zigTestFiles = move(config.zigTestFiles);
+        sibsTestConfig.cpu = config.cpu;
+        sibsTestConfig.zigTestFiles = config.zigTestFiles;
         sibsTestConfig.zigTestAllFiles = config.zigTestAllFiles;
         sibsTestConfig.cVersion = config.cVersion;
         sibsTestConfig.cppVersion = config.cppVersion;
-- 
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