Fix tests

Author: antoyo

Cargo.lock

@@ -60,3 +60,6 @@ codegen_gcc_invalid_monomorphization_unsupported_cast =
 
 codegen_gcc_invalid_monomorphization_unsupported_operation =
     invalid monomorphization of `{$name}` intrinsic: unsupported operation on `{$in_ty}` with element `{$in_elem}`
+
+codegen_gcc_invalid_minimum_alignment =
+    invalid minimum global alignment: {$err}

locales/en-US.ftl

@@ -18,7 +18,7 @@ new file mode 100644
 index 0000000..46fd999
 --- /dev/null
 +++ b/library/core/tests/Cargo.toml
-@@ -0,0 +1,8 @@
+@@ -0,0 +1,12 @@
 +[package]
 +name = "core"
 +version = "0.0.0"
@@ -27,37 +27,18 @@ index 0000000..46fd999
 +[lib]
 +name = "coretests"
 +path = "lib.rs"
-diff --git a/library/core/tests/num/flt2dec/mod.rs b/library/core/tests/num/flt2dec/mod.rs
-index a35897e..f0bf645 100644
---- a/library/core/tests/num/flt2dec/mod.rs
-+++ b/library/core/tests/num/flt2dec/mod.rs
-@@ -13,7 +13,6 @@ mod strategy {
-     mod dragon;
-     mod grisu;
- }
--mod random;
- 
- pub fn decode_finite<T: DecodableFloat>(v: T) -> Decoded {
-     match decode(v).1 {
-diff --git a/library/core/tests/slice.rs b/library/core/tests/slice.rs
-index 6609bc3..241b497 100644
---- a/library/core/tests/slice.rs
-+++ b/library/core/tests/slice.rs
-@@ -1209,6 +1209,7 @@ fn brute_force_rotate_test_1() {
-     }
- }
- 
-+/*
- #[test]
- #[cfg(not(target_arch = "wasm32"))]
- fn sort_unstable() {
-@@ -1394,6 +1395,7 @@ fn partition_at_index() {
-     v.select_nth_unstable(0);
-     assert!(v == [0xDEADBEEF]);
- }
-+*/
- 
- #[test]
- #[should_panic(expected = "index 0 greater than length of slice")]
++
++[dependencies]
++rand = { version = "0.8.5", default-features = false }
++rand_xorshift = { version = "0.3.0", default-features = false }
+diff --git a/library/core/tests/lib.rs b/library/core/tests/lib.rs
+index 42a26ae..5ac1042 100644
+--- a/library/core/tests/lib.rs
++++ b/library/core/tests/lib.rs
+@@ -1,3 +1,4 @@
++#![cfg(test)]
+ #![feature(alloc_layout_extra)]
+ #![feature(array_chunks)]
+ #![feature(array_methods)]
 --
 2.21.0 (Apple Git-122)

patches/0022-core-Disable-not-compiling-tests.patch

@@ -1,3 +1,3 @@
 [toolchain]
-channel = "nightly-2023-02-28"
+channel = "nightly-2023-03-02"
 components = ["rust-src", "rustc-dev", "llvm-tools-preview"]

rust-toolchain

@@ -1228,12 +1228,8 @@ impl<'a, 'gcc, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'gcc, 'tcx> {
 
     #[cfg(feature="master")]
     fn resume(&mut self, exn0: RValue<'gcc>, _exn1: RValue<'gcc>) {
-        // TODO(antoyo): check if this is normal that we need to dereference the value.
-        // NOTE: the type is wrong, so in order to get a pointer for parameter, cast it to a
-        // pointer of pointer that is later dereferenced.
-        let exn_type = exn0.get_type().make_pointer();
+        let exn_type = exn0.get_type();
         let exn = self.context.new_cast(None, exn0, exn_type);
-        let exn = exn.dereference(None).to_rvalue();
         let unwind_resume = self.context.get_target_builtin_function("__builtin_unwind_resume");
         self.llbb().add_eval(None, self.context.new_call(None, unwind_resume, &[exn]));
         self.unreachable();

src/builder.rs

@@ -36,7 +36,7 @@ impl<'gcc, 'tcx> CodegenCx<'gcc, 'tcx> {
 pub fn bytes_in_context<'gcc, 'tcx>(cx: &CodegenCx<'gcc, 'tcx>, bytes: &[u8]) -> RValue<'gcc> {
     let context = &cx.context;
     let byte_type = context.new_type::<u8>();
-    let typ = context.new_array_type(None, byte_type, bytes.len() as i32);
+    let typ = context.new_array_type(None, byte_type, bytes.len() as u64);
     let elements: Vec<_> =
         bytes.iter()
         .map(|&byte| context.new_rvalue_from_int(byte_type, byte as i32))

src/common.rs

@@ -13,6 +13,7 @@ use rustc_target::abi::{self, Align, HasDataLayout, Primitive, Size, WrappingRan
 
 use crate::base;
 use crate::context::CodegenCx;
+use crate::errors::InvalidMinimumAlignment;
 use crate::type_of::LayoutGccExt;
 
 impl<'gcc, 'tcx> CodegenCx<'gcc, 'tcx> {
@@ -30,6 +31,21 @@ impl<'gcc, 'tcx> CodegenCx<'gcc, 'tcx> {
     }
 }
 
+fn set_global_alignment<'gcc, 'tcx>(cx: &CodegenCx<'gcc, 'tcx>, gv: LValue<'gcc>, mut align: Align) {
+    // The target may require greater alignment for globals than the type does.
+    // Note: GCC and Clang also allow `__attribute__((aligned))` on variables,
+    // which can force it to be smaller. Rust doesn't support this yet.
+    if let Some(min) = cx.sess().target.min_global_align {
+        match Align::from_bits(min) {
+            Ok(min) => align = align.max(min),
+            Err(err) => {
+                cx.sess().emit_err(InvalidMinimumAlignment { err });
+            }
+        }
+    }
+    gv.set_alignment(align.bytes() as i32);
+}
+
 impl<'gcc, 'tcx> StaticMethods for CodegenCx<'gcc, 'tcx> {
     fn static_addr_of(&self, cv: RValue<'gcc>, align: Align, kind: Option<&str>) -> RValue<'gcc> {
         // TODO(antoyo): implement a proper rvalue comparison in libgccjit instead of doing the
@@ -81,7 +97,7 @@ impl<'gcc, 'tcx> StaticMethods for CodegenCx<'gcc, 'tcx> {
         let ty = instance.ty(self.tcx, ty::ParamEnv::reveal_all());
         let gcc_type = self.layout_of(ty).gcc_type(self);
 
-        // TODO(antoyo): set alignment.
+        set_global_alignment(self, global, self.align_of(ty));
 
         let value = self.bitcast_if_needed(value, gcc_type);
         global.global_set_initializer_rvalue(value);

src/consts.rs

@@ -221,3 +221,9 @@ pub(crate) struct UnwindingInlineAsm {
     #[primary_span]
     pub span: Span,
 }
+
+#[derive(Diagnostic)]
+#[diag(codegen_gcc_invalid_minimum_alignment)]
+pub(crate) struct InvalidMinimumAlignment {
+    pub err: String,
+}

src/errors.rs

@@ -1,5 +1,3 @@
-use std::convert::TryInto;
-
 use gccjit::{RValue, Struct, Type};
 use rustc_codegen_ssa::traits::{BaseTypeMethods, DerivedTypeMethods, TypeMembershipMethods};
 use rustc_codegen_ssa::common::TypeKind;
@@ -202,23 +200,17 @@ impl<'gcc, 'tcx> BaseTypeMethods<'tcx> for CodegenCx<'gcc, 'tcx> {
         value.get_type()
     }
 
-    fn type_array(&self, ty: Type<'gcc>, mut len: u64) -> Type<'gcc> {
-        if let Some(struct_type) = ty.is_struct() {
+    fn type_array(&self, ty: Type<'gcc>, len: u64) -> Type<'gcc> {
+        // TODO: remove this as well?
+        /*if let Some(struct_type) = ty.is_struct() {
             if struct_type.get_field_count() == 0 {
                 // NOTE: since gccjit only supports i32 for the array size and libcore's tests uses a
                 // size of usize::MAX in test_binary_search, we workaround this by setting the size to
                 // zero for ZSTs.
                 // FIXME(antoyo): fix gccjit API.
                 len = 0;
             }
-        }
-
-        // NOTE: see note above. Some other test uses usize::MAX.
-        if len == u64::MAX {
-            len = 0;
-        }
-
-        let len: i32 = len.try_into().expect("array len");
+        }*/
 
         self.context.new_array_type(None, ty, len)
     }

src/type_.rs

@@ -6,7 +6,7 @@ use rustc_middle::bug;
 use rustc_middle::ty::{self, Ty, TypeVisitableExt};
 use rustc_middle::ty::layout::{FnAbiOf, LayoutOf, TyAndLayout};
 use rustc_middle::ty::print::with_no_trimmed_paths;
-use rustc_target::abi::{self, Abi, F32, F64, FieldsShape, Int, Integer, Pointer, PointeeInfo, Size, TyAbiInterface, Variants};
+use rustc_target::abi::{self, Abi, Align, F32, F64, FieldsShape, Int, Integer, Pointer, PointeeInfo, Size, TyAbiInterface, Variants};
 use rustc_target::abi::call::{CastTarget, FnAbi, Reg};
 
 use crate::abi::{FnAbiGccExt, GccType};
@@ -50,6 +50,12 @@ impl<'gcc, 'tcx> CodegenCx<'gcc, 'tcx> {
     }
 }
 
+impl<'a, 'tcx> CodegenCx<'a, 'tcx> {
+    pub fn align_of(&self, ty: Ty<'tcx>) -> Align {
+        self.layout_of(ty).align.abi
+    }
+}
+
 fn uncached_gcc_type<'gcc, 'tcx>(cx: &CodegenCx<'gcc, 'tcx>, layout: TyAndLayout<'tcx>, defer: &mut Option<(Struct<'gcc>, TyAndLayout<'tcx>)>) -> Type<'gcc> {
     match layout.abi {
         Abi::Scalar(_) => bug!("handled elsewhere"),