[PATCH 01/21] gccrs: intrinsics: Fix typecheck info for prefered_align_of

[Marc Poulhiès]

From: Arthur Cohen <arthur.co...@opensrcsec.com>

gcc/rust/ChangeLog:

        * typecheck/rust-hir-type-check-intrinsic.cc: Make it return a usize 
instead of a unit type.

gcc/testsuite/ChangeLog:

        * rust/compile/pref_align_of.rs: Likewise.

Tested on x86_64-pc-linux-gnu.

---
 gcc/rust/typecheck/rust-hir-type-check-intrinsic.cc | 4 ++--
 gcc/testsuite/rust/compile/pref_align_of.rs         | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/gcc/rust/typecheck/rust-hir-type-check-intrinsic.cc 
b/gcc/rust/typecheck/rust-hir-type-check-intrinsic.cc
index 69424e053ce..882ba5debf6 100644
--- a/gcc/rust/typecheck/rust-hir-type-check-intrinsic.cc
+++ b/gcc/rust/typecheck/rust-hir-type-check-intrinsic.cc
@@ -315,8 +315,8 @@ const std::unordered_map<std::string, IntrinsicRules>
     // fn breakpoint()
     {IValue::BREAKPOINT, {0, {}, IRT::Unit}},
 
-    // fn pref_align_of<T>()
-    {IValue::PREF_ALIGN_OF, {1, {}, IRT::Unit}},
+    // fn pref_align_of<T>() -> usize
+    {IValue::PREF_ALIGN_OF, {1, {}, IRT::Usize}},
 
     // pub fn assert_zero_valid<T>();
     {IValue::ASSERT_ZERO_VALID, {1, {}, IRT::Unit}},
diff --git a/gcc/testsuite/rust/compile/pref_align_of.rs 
b/gcc/testsuite/rust/compile/pref_align_of.rs
index 0387e9beed5..1654f4e10f7 100644
--- a/gcc/testsuite/rust/compile/pref_align_of.rs
+++ b/gcc/testsuite/rust/compile/pref_align_of.rs
@@ -7,7 +7,7 @@
 trait Sized {}
 
 extern "rust-intrinsic" {
-    fn pref_align_of<T>();
+    fn pref_align_of<T>() -> usize;
 }
 
 fn foo() {
-- 
2.55.0