Merge commit '70ae207ff5dcd67931c0e67cb62ebceec75a7436' into subtree-update_cg_gcc_2026-02-14

compiler/rustc_codegen_gcc/tests/failing-run-make-tests.txt

@@ -11,4 +11,4 @@ tests/run-make/foreign-exceptions/
 tests/run-make/glibc-staticlib-args/
 tests/run-make/lto-smoke-c/
 tests/run-make/return-non-c-like-enum/
-
+tests/run-make/short-ice

compiler/rustc_codegen_gcc/tests/failing-ui-tests-without-128bit-integers.txt

@@ -0,0 +1 @@
+tests/ui/simd/intrinsic/splat.rs

compiler/rustc_codegen_gcc/tests/failing-ui-tests.txt

@@ -89,11 +89,13 @@ tests/ui/thir-print/offset_of.rs
 tests/ui/iterators/rangefrom-overflow-debug.rs
 tests/ui/iterators/rangefrom-overflow-overflow-checks.rs
 tests/ui/iterators/iter-filter-count-debug-check.rs
-tests/ui/eii/codegen_single_crate.rs
-tests/ui/eii/codegen_cross_crate.rs
+tests/ui/eii/linking/codegen_single_crate.rs
+tests/ui/eii/linking/codegen_cross_crate.rs
 tests/ui/eii/default/local_crate.rs
-tests/ui/eii/multiple_impls.rs
+tests/ui/eii/duplicate/multiple_impls.rs
 tests/ui/eii/default/call_default.rs
-tests/ui/eii/same-symbol.rs
+tests/ui/eii/linking/same-symbol.rs
 tests/ui/eii/privacy1.rs
 tests/ui/eii/default/call_impl.rs
+tests/ui/c-variadic/copy.rs
+tests/ui/asm/x86_64/global_asm_escape.rs

compiler/rustc_codegen_gcc/tests/run/call-llvm-intrinsics.rs

@@ -0,0 +1,38 @@
+// Compiler:
+//
+// Run-time:
+//   status: 0
+
+// FIXME: Remove this test once rustc's `./tests/codegen/riscv-abi/call-llvm-intrinsics.rs`
+// stops ignoring GCC backend.
+
+#![feature(link_llvm_intrinsics)]
+#![allow(internal_features)]
+
+struct A;
+
+impl Drop for A {
+    fn drop(&mut self) {
+        println!("A");
+    }
+}
+
+extern "C" {
+    #[link_name = "llvm.sqrt.f32"]
+    fn sqrt(x: f32) -> f32;
+}
+
+pub fn do_call() {
+    let _a = A;
+
+    unsafe {
+        // Ensure that we `call` LLVM intrinsics instead of trying to `invoke` them
+        // CHECK: store float 4.000000e+00, float* %{{.}}, align 4
+        // CHECK: call float @llvm.sqrt.f32(float %{{.}}
+        sqrt(4.0);
+    }
+}
+
+fn main() {
+    do_call();
+}

compiler/rustc_codegen_gcc/tests/run/simd-ffi.rs

@@ -0,0 +1,102 @@
+// Compiler:
+//
+// Run-time:
+//   status: 0
+
+// FIXME: Remove this test once <tests/run-make/simd-ffi/simd.rs> stops
+// ignoring GCC backend.
+
+#![allow(internal_features, non_camel_case_types)]
+// we can compile to a variety of platforms, because we don't need
+// cross-compiled standard libraries.
+#![feature(no_core, auto_traits)]
+#![no_core]
+#![feature(repr_simd, simd_ffi, link_llvm_intrinsics, lang_items, rustc_attrs)]
+
+#[derive(Copy)]
+#[repr(simd)]
+pub struct f32x4([f32; 4]);
+
+extern "C" {
+    #[link_name = "llvm.sqrt.v4f32"]
+    fn vsqrt(x: f32x4) -> f32x4;
+}
+
+pub fn foo(x: f32x4) -> f32x4 {
+    unsafe { vsqrt(x) }
+}
+
+#[derive(Copy)]
+#[repr(simd)]
+pub struct i32x4([i32; 4]);
+
+extern "C" {
+    // _mm_sll_epi32
+    #[cfg(all(any(target_arch = "x86", target_arch = "x86-64"), target_feature = "sse2"))]
+    #[link_name = "llvm.x86.sse2.psll.d"]
+    fn integer(a: i32x4, b: i32x4) -> i32x4;
+
+    // vmaxq_s32
+    #[cfg(target_arch = "arm")]
+    #[link_name = "llvm.arm.neon.vmaxs.v4i32"]
+    fn integer(a: i32x4, b: i32x4) -> i32x4;
+    // vmaxq_s32
+    #[cfg(target_arch = "aarch64")]
+    #[link_name = "llvm.aarch64.neon.maxs.v4i32"]
+    fn integer(a: i32x4, b: i32x4) -> i32x4;
+
+    // Use a generic LLVM intrinsic to do type checking on other platforms
+    #[cfg(not(any(
+        all(any(target_arch = "x86", target_arch = "x86-64"), target_feature = "sse2"),
+        target_arch = "arm",
+        target_arch = "aarch64"
+    )))]
+    #[link_name = "llvm.smax.v4i32"]
+    fn integer(a: i32x4, b: i32x4) -> i32x4;
+}
+
+pub fn bar(a: i32x4, b: i32x4) -> i32x4 {
+    unsafe { integer(a, b) }
+}
+
+#[lang = "pointee_sized"]
+pub trait PointeeSized {}
+
+#[lang = "meta_sized"]
+pub trait MetaSized: PointeeSized {}
+
+#[lang = "sized"]
+pub trait Sized: MetaSized {}
+
+#[lang = "copy"]
+pub trait Copy {}
+
+impl Copy for f32 {}
+impl Copy for i32 {}
+impl Copy for [f32; 4] {}
+impl Copy for [i32; 4] {}
+
+pub mod marker {
+    pub use Copy;
+}
+
+#[lang = "freeze"]
+auto trait Freeze {}
+
+#[macro_export]
+#[rustc_builtin_macro]
+macro_rules! Copy {
+    () => {};
+}
+#[macro_export]
+#[rustc_builtin_macro]
+macro_rules! derive {
+    () => {};
+}
+
+#[lang = "start"]
+fn start<T>(_main: fn() -> T, _argc: isize, _argv: *const *const u8, _sigpipe: u8) -> isize {
+    0
+}
+
+fn main() {}

compiler/rustc_codegen_gcc/tests/run/unreachable-function.rs

@@ -0,0 +1,27 @@
+// Compiler:
+//
+// Run-time:
+//   status: 0
+
+use std::arch::asm;
+
+fn exit_syscall(status: i32) -> ! {
+    #[cfg(target_arch = "x86_64")]
+    unsafe {
+        asm!(
+            "syscall",
+            in("rax") 60,
+            in("rdi") status,
+            options(noreturn)
+        );
+    }
+
+    #[cfg(not(target_arch = "x86_64"))]
+    std::process::exit(status);
+}
+
+fn main() {
+    // Used to crash with rustc_codegen_gcc.
+    exit_syscall(0);
+    std::process::exit(1);
+}