Format some tests

rustfmt.toml

@@ -10,9 +10,27 @@ ignore = [
     "/build-*/",
     "/vendor/",
 
-    # Tests for now are not formatted, as they are sometimes pretty-printing constrained
-    # (and generally rustfmt can move around comments in UI-testing incompatible ways).
-    "/tests/",
+    # Some tests are not formatted, for multiple reasons:
+    # - some contain syntax errors that cause rustfmt to give an error
+    # - some UI tests are broken by different formatting
+    # - some require special comments in a particular position (e.g. `EMIT_MIR` comments)
+    "/tests/codegen/simd-intrinsic/", # Many types like `u8x64` are better hand-formatted.
+    "/tests/crashes/",                # Many tests contain syntax errors.
+    "/tests/debuginfo/",              # Tests are somewhat sensitive to source code layout.
+    "/tests/incremental/",            # Tests are somewhat sensitive to source code layout.
+    "/tests/mir-opt/",
+    "/tests/pretty/",
+    "/tests/run-make/translation/test.rs", # Contains syntax errors.
+    "/tests/run-make-fulldeps/",
+    "/tests/run-pass-valgrind/",
+    "/tests/rustdoc/",
+    "/tests/rustdoc-gui/",
+    "/tests/rustdoc-js/",
+    "/tests/rustdoc-json/",
+    "/tests/rustdoc-js-std/",
+    "/tests/rustdoc-ui/",
+    "/tests/ui/",
+    "/tests/ui-fulldeps/",
 
     # Do not format submodules.
     # FIXME: sync submodule list with tidy/bootstrap/etc

tests/assembly/align_offset.rs

@@ -1,7 +1,7 @@
 //@ assembly-output: emit-asm
 //@ compile-flags: -Copt-level=1
 //@ only-x86_64
-#![crate_type="rlib"]
+#![crate_type = "rlib"]
 
 // CHECK-LABEL: align_offset_byte_ptr
 // CHECK: leaq 31

tests/assembly/asm/inline-asm-avx.rs

@@ -5,8 +5,8 @@
 
 #![feature(portable_simd)]
 
-use std::simd::Simd;
 use std::arch::asm;
+use std::simd::Simd;
 
 #[target_feature(enable = "avx")]
 #[no_mangle]

tests/assembly/closure-inherit-target-feature.rs

@@ -18,7 +18,8 @@ pub unsafe fn sse41_blend_nofeature(x: __m128, y: __m128) -> __m128 {
         // CHECK: {{call .*_mm_blend_ps.*}}
         // CHECK-NOT: blendps
         // CHECK: ret
-        #[inline(never)] |x, y| _mm_blend_ps(x, y, 0b0101)
+        #[inline(never)]
+        |x, y| _mm_blend_ps(x, y, 0b0101)
     };
     f(x, y)
 }
@@ -33,9 +34,8 @@ pub fn sse41_blend_noinline(x: __m128, y: __m128) -> __m128 {
         // CHECK: blendps
         // CHECK-NOT: _mm_blend_ps
         // CHECK: ret
-        #[inline(never)] |x, y| unsafe {
-            _mm_blend_ps(x, y, 0b0101)
-        }
+        #[inline(never)]
+        |x, y| unsafe { _mm_blend_ps(x, y, 0b0101) }
     };
     f(x, y)
 }
@@ -52,9 +52,8 @@ pub fn sse41_blend_doinline(x: __m128, y: __m128) -> __m128 {
     // CHECK-NOT: _mm_blend_ps
     // CHECK: ret
     let f = {
-        #[inline] |x, y| unsafe {
-            _mm_blend_ps(x, y, 0b0101)
-        }
+        #[inline]
+        |x, y| unsafe { _mm_blend_ps(x, y, 0b0101) }
     };
     f(x, y)
 }

tests/assembly/is_aligned.rs

@@ -4,8 +4,7 @@
 //@ revisions: opt-speed opt-size
 //@ [opt-speed] compile-flags: -Copt-level=2 -Cdebug-assertions=no
 //@ [opt-size] compile-flags: -Copt-level=s -Cdebug-assertions=no
-#![crate_type="rlib"]
-
+#![crate_type = "rlib"]
 #![feature(core_intrinsics)]
 #![feature(pointer_is_aligned_to)]
 
@@ -16,9 +15,7 @@
 // CHECK: retq
 #[no_mangle]
 pub unsafe fn is_aligned_to_unchecked(ptr: *const u8, align: usize) -> bool {
-    unsafe {
-        std::intrinsics::assume(align.is_power_of_two())
-    }
+    unsafe { std::intrinsics::assume(align.is_power_of_two()) }
     ptr.is_aligned_to(align)
 }
 

tests/assembly/pic-relocation-model.rs

@@ -3,10 +3,9 @@
 //@ [x64] compile-flags: --target x86_64-unknown-linux-gnu -Crelocation-model=pic
 //@ [x64] needs-llvm-components: x86
 
-
 #![feature(no_core, lang_items)]
 #![no_core]
-#![crate_type="rlib"]
+#![crate_type = "rlib"]
 
 #[lang = "sized"]
 trait Sized {}
@@ -17,19 +16,17 @@ trait Copy {}
 // CHECK:       {{(jmpq|callq)}} *other_fn@GOTPCREL(%rip)
 #[no_mangle]
 pub fn call_other_fn() -> u8 {
-    unsafe {
-        other_fn()
-    }
+    unsafe { other_fn() }
 }
 
 // CHECK-LABEL: other_fn:
 // CHECK:       callq *foreign_fn@GOTPCREL(%rip)
 #[no_mangle]
 #[inline(never)]
 pub fn other_fn() -> u8 {
-    unsafe {
-        foreign_fn()
-    }
+    unsafe { foreign_fn() }
 }
 
-extern "C" {fn foreign_fn() -> u8;}
+extern "C" {
+    fn foreign_fn() -> u8;
+}

tests/assembly/pie-relocation-model.rs

@@ -3,10 +3,9 @@
 //@ [x64] compile-flags: --target x86_64-unknown-linux-gnu -Crelocation-model=pie
 //@ [x64] needs-llvm-components: x86
 
-
 #![feature(no_core, lang_items)]
 #![no_core]
-#![crate_type="rlib"]
+#![crate_type = "rlib"]
 
 #[lang = "sized"]
 trait Sized {}
@@ -18,9 +17,7 @@ trait Copy {}
 // CHECK:       {{(jmp|callq)}} other_fn
 #[no_mangle]
 pub fn call_other_fn() -> u8 {
-    unsafe {
-        other_fn()
-    }
+    unsafe { other_fn() }
 }
 
 // CHECK-LABEL: other_fn:
@@ -30,9 +27,9 @@ pub fn call_other_fn() -> u8 {
 #[no_mangle]
 #[inline(never)]
 pub fn other_fn() -> u8 {
-    unsafe {
-        foreign_fn()
-    }
+    unsafe { foreign_fn() }
 }
 
-extern "C" {fn foreign_fn() -> u8;}
+extern "C" {
+    fn foreign_fn() -> u8;
+}

tests/assembly/stack-protector/stack-protector-heuristics-effect-windows-32bit.rs

@@ -10,12 +10,9 @@
 //@ compile-flags: -C opt-level=2 -Z merge-functions=disabled
 
 #![crate_type = "lib"]
-
 #![allow(incomplete_features)]
-
 #![feature(unsized_locals, unsized_fn_params)]
 
-
 // CHECK-LABEL: emptyfn:
 #[no_mangle]
 pub fn emptyfn() {
@@ -139,7 +136,6 @@ pub fn local_var_addr_used_indirectly(f: fn(bool)) {
     // missing-NOT: __security_check_cookie
 }
 
-
 // CHECK-LABEL: local_string_addr_taken
 #[no_mangle]
 pub fn local_string_addr_taken(f: fn(&String)) {
@@ -205,7 +201,7 @@ pub struct Gigastruct {
     not: u64,
     have: u64,
     array: u64,
-    members: u64
+    members: u64,
 }
 
 // CHECK-LABEL: local_large_var_moved
@@ -259,15 +255,13 @@ pub fn local_large_var_cloned(f: fn(Gigastruct)) {
     // EOF
     // ```
 
-
     // all: __security_check_cookie
     // strong: __security_check_cookie
     // basic: __security_check_cookie
     // none-NOT: __security_check_cookie
     // missing-NOT: __security_check_cookie
 }
 
-
 extern "C" {
     // A call to an external `alloca` function is *not* recognized as an
     // `alloca(3)` operation. This function is a compiler built-in, as the
@@ -320,7 +314,6 @@ pub fn alloca_large_compile_time_constant_arg(f: fn(*mut ())) {
     // missing-NOT: __security_check_cookie
 }
 
-
 // CHECK-LABEL: alloca_dynamic_arg
 #[no_mangle]
 pub fn alloca_dynamic_arg(f: fn(*mut ()), n: usize) {
@@ -340,7 +333,6 @@ pub fn alloca_dynamic_arg(f: fn(*mut ()), n: usize) {
 // this is support for the "unsized locals" unstable feature:
 // https://doc.rust-lang.org/unstable-book/language-features/unsized-locals.html.
 
-
 // CHECK-LABEL: unsized_fn_param
 #[no_mangle]
 pub fn unsized_fn_param(s: [u8], l: bool, f: fn([u8])) {
@@ -354,7 +346,6 @@ pub fn unsized_fn_param(s: [u8], l: bool, f: fn([u8])) {
     // alloca, and is therefore not protected by the `strong` or `basic`
     // heuristics.
 
-
     // We should have a __security_check_cookie call in `all` and `strong` modes but
     // LLVM does not support generating stack protectors in functions with funclet
     // based EH personalities.

tests/assembly/stack-protector/stack-protector-heuristics-effect-windows-64bit.rs

@@ -10,12 +10,9 @@
 //@ compile-flags: -C opt-level=2 -Z merge-functions=disabled
 
 #![crate_type = "lib"]
-
 #![allow(incomplete_features)]
-
 #![feature(unsized_locals, unsized_fn_params)]
 
-
 // CHECK-LABEL: emptyfn:
 #[no_mangle]
 pub fn emptyfn() {
@@ -139,7 +136,6 @@ pub fn local_var_addr_used_indirectly(f: fn(bool)) {
     // missing-NOT: __security_check_cookie
 }
 
-
 // CHECK-LABEL: local_string_addr_taken
 #[no_mangle]
 pub fn local_string_addr_taken(f: fn(&String)) {
@@ -213,7 +209,7 @@ pub struct Gigastruct {
     not: u64,
     have: u64,
     array: u64,
-    members: u64
+    members: u64,
 }
 
 // CHECK-LABEL: local_large_var_moved
@@ -267,15 +263,13 @@ pub fn local_large_var_cloned(f: fn(Gigastruct)) {
     // EOF
     // ```
 
-
     // all: __security_check_cookie
     // strong: __security_check_cookie
     // basic: __security_check_cookie
     // none-NOT: __security_check_cookie
     // missing-NOT: __security_check_cookie
 }
 
-
 extern "C" {
     // A call to an external `alloca` function is *not* recognized as an
     // `alloca(3)` operation. This function is a compiler built-in, as the
@@ -328,7 +322,6 @@ pub fn alloca_large_compile_time_constant_arg(f: fn(*mut ())) {
     // missing-NOT: __security_check_cookie
 }
 
-
 // CHECK-LABEL: alloca_dynamic_arg
 #[no_mangle]
 pub fn alloca_dynamic_arg(f: fn(*mut ()), n: usize) {
@@ -348,7 +341,6 @@ pub fn alloca_dynamic_arg(f: fn(*mut ()), n: usize) {
 // this is support for the "unsized locals" unstable feature:
 // https://doc.rust-lang.org/unstable-book/language-features/unsized-locals.html.
 
-
 // CHECK-LABEL: unsized_fn_param
 #[no_mangle]
 pub fn unsized_fn_param(s: [u8], l: bool, f: fn([u8])) {
@@ -362,7 +354,6 @@ pub fn unsized_fn_param(s: [u8], l: bool, f: fn([u8])) {
     // alloca, and is therefore not protected by the `strong` or `basic`
     // heuristics.
 
-
     // We should have a __security_check_cookie call in `all` and `strong` modes but
     // LLVM does not support generating stack protectors in functions with funclet
     // based EH personalities.

tests/assembly/stack-protector/stack-protector-heuristics-effect.rs

@@ -143,7 +143,6 @@ pub fn local_var_addr_used_indirectly(f: fn(bool)) {
     // missing-NOT: __stack_chk_fail
 }
 
-
 // CHECK-LABEL: local_string_addr_taken
 #[no_mangle]
 pub fn local_string_addr_taken(f: fn(&String)) {
@@ -194,7 +193,7 @@ pub struct Gigastruct {
     not: u64,
     have: u64,
     array: u64,
-    members: u64
+    members: u64,
 }
 
 // CHECK-LABEL: local_large_var_moved
@@ -255,7 +254,6 @@ pub fn local_large_var_cloned(f: fn(Gigastruct)) {
     // missing-NOT: __stack_chk_fail
 }
 
-
 extern "C" {
     // A call to an external `alloca` function is *not* recognized as an
     // `alloca(3)` operation. This function is a compiler built-in, as the
@@ -308,7 +306,6 @@ pub fn alloca_large_compile_time_constant_arg(f: fn(*mut ())) {
     // missing-NOT: __stack_chk_fail
 }
 
-
 // CHECK-LABEL: alloca_dynamic_arg
 #[no_mangle]
 pub fn alloca_dynamic_arg(f: fn(*mut ()), n: usize) {
@@ -328,7 +325,6 @@ pub fn alloca_dynamic_arg(f: fn(*mut ()), n: usize) {
 // this is support for the "unsized locals" unstable feature:
 // https://doc.rust-lang.org/unstable-book/language-features/unsized-locals.html.
 
-
 // CHECK-LABEL: unsized_fn_param
 #[no_mangle]
 pub fn unsized_fn_param(s: [u8], l: bool, f: fn([u8])) {
@@ -342,7 +338,6 @@ pub fn unsized_fn_param(s: [u8], l: bool, f: fn([u8])) {
     // alloca, and is therefore not protected by the `strong` or `basic`
     // heuristics.
 
-
     // all: __stack_chk_fail
     // strong-NOT: __stack_chk_fail
     // basic-NOT: __stack_chk_fail