Enable memory alignment management via compiler options

2013-05-17 22:15:57 +04:00
parent 7bedb4a081
commit 1a7ac8b804
4 changed files with 14 additions and 0 deletions
--- a/builtins.cpp
+++ b/builtins.cpp
@@ -996,6 +996,11 @@ DefineStdlib(SymbolTable *symbolTable, llvm::LLVMContext *ctx, llvm::Module *mod
    lDefineConstantInt("__have_native_transcendentals", g->target->hasTranscendentals(),
                       module, symbolTable);

+    if (g->forceAlignment != -1) {
+        llvm::GlobalVariable *alignment = module->getGlobalVariable("memory_alignment", true);
+        alignment->setInitializer(LLVMInt32(g->forceAlignment));
+    }
+
    if (includeStdlibISPC) {
        // If the user wants the standard library to be included, parse the
        // serialized version of the stdlib.ispc file to get its