Correctly align global and static variables.

This can be important if matrices or SIMD vectors are being used in
global or static variables, as otherwise it may result in crashes due to
aligned instructions accessing misaligned variables.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/llvm_backend_stmt.cpp b/src/llvm_backend_stmt.cpp
index a0b7e8340..31e1ea595 100644
--- a/src/llvm_backend_stmt.cpp
+++ b/src/llvm_backend_stmt.cpp
@@ -1984,6 +1984,7 @@ gb_internal void lb_build_static_variables(lbProcedure *p, AstValueDecl *vd) {
 		char *c_name = alloc_cstring(permanent_allocator(), mangled_name);
 
 		LLVMValueRef global = LLVMAddGlobal(p->module->mod, lb_type(p->module, e->type), c_name);
+		LLVMSetAlignment(global, type_align_of(e->type));
 		LLVMSetInitializer(global, LLVMConstNull(lb_type(p->module, e->type)));
 		if (value.value != nullptr) {
 			LLVMSetInitializer(global, value.value);