diff --git a/src/test/run-make/min-global-align/Makefile b/src/test/run-make/min-global-align/Makefile new file mode 100644 index 00000000000..2eacc36f380 --- /dev/null +++ b/src/test/run-make/min-global-align/Makefile @@ -0,0 +1,22 @@ +-include ../tools.mk + +# This tests ensure that global variables respect the target minimum alignment. +# The three bools `STATIC_BOOL`, `STATIC_MUT_BOOL`, and `CONST_BOOL` all have +# type-alignment of 1, but some targets require greater global alignment. + +SRC = min_global_align.rs +LL = $(TMPDIR)/min_global_align.ll + +all: +ifeq ($(UNAME),Linux) +# Most targets are happy with default alignment -- take i686 for example. +ifeq ($(filter x86,$(LLVM_COMPONENTS)),x86) + $(RUSTC) --target=i686-unknown-linux-gnu --emit=llvm-ir $(SRC) + [ "$$(grep -c 'align 1' "$(LL)")" -eq "3" ] +endif +# SystemZ requires even alignment for PC-relative addressing. +ifeq ($(filter systemz,$(LLVM_COMPONENTS)),systemz) + $(RUSTC) --target=s390x-unknown-linux-gnu --emit=llvm-ir $(SRC) + [ "$$(grep -c 'align 2' "$(LL)")" -eq "3" ] +endif +endif diff --git a/src/test/run-make/min-global-align/min_global_align.rs b/src/test/run-make/min-global-align/min_global_align.rs new file mode 100644 index 00000000000..3d4f9001a74 --- /dev/null +++ b/src/test/run-make/min-global-align/min_global_align.rs @@ -0,0 +1,38 @@ +// Copyright 2017 The Rust Project Developers. See the COPYRIGHT +// file at the top-level directory of this distribution and at +// http://rust-lang.org/COPYRIGHT. +// +// Licensed under the Apache License, Version 2.0 or the MIT license +// , at your +// option. This file may not be copied, modified, or distributed +// except according to those terms. + +#![feature(no_core, lang_items)] +#![crate_type="rlib"] +#![no_core] + +pub static STATIC_BOOL: bool = true; + +pub static mut STATIC_MUT_BOOL: bool = true; + +const CONST_BOOL: bool = true; +pub static CONST_BOOL_REF: &'static bool = &CONST_BOOL; + + +#[lang = "sized"] +trait Sized {} + +#[lang = "copy"] +trait Copy {} + +#[lang = "freeze"] +trait Freeze {} + +#[lang = "sync"] +trait Sync {} +impl Sync for bool {} +impl Sync for &'static bool {} + +#[lang="drop_in_place"] +pub unsafe fn drop_in_place(_: *mut T) { }