Always use extern crate std in cranelift-codegen

cranelift/codegen/src/ir/constant.rs

@@ -11,8 +11,8 @@
 use crate::ir::Constant;
 use crate::HashMap;
 use cranelift_entity::EntityRef;
-use std::collections::BTreeMap;
-use std::vec::Vec;
+use alloc::collections::BTreeMap;
+use alloc::vec::Vec;
 
 /// This type describes the actual constant data.
 pub type ConstantData = Vec<u8>;

cranelift/codegen/src/ir/dfg.rs

@@ -19,7 +19,7 @@ use core::iter;
 use core::mem;
 use core::ops::{Index, IndexMut};
 use core::u16;
-use std::vec::Vec;
+use alloc::vec::Vec;
 
 /// A data flow graph defines all instructions and extended basic blocks in a function as well as
 /// the data flow dependencies between them. The DFG also tracks values which can be either
@@ -1093,7 +1093,7 @@ mod tests {
     use crate::cursor::{Cursor, FuncCursor};
     use crate::ir::types;
     use crate::ir::{Function, InstructionData, Opcode, TrapCode};
-    use std::string::ToString;
+    use alloc::string::ToString;
 
     #[test]
     fn make_inst() {

cranelift/codegen/src/ir/entities.rs

@@ -456,7 +456,7 @@ impl From<Table> for AnyEntity {
 mod tests {
     use super::*;
     use core::u32;
-    use std::string::ToString;
+    use alloc::string::ToString;
 
     #[test]
     fn value_with_number() {

cranelift/codegen/src/ir/extfunc.rs

@@ -9,7 +9,7 @@ use crate::ir::{ArgumentLoc, ExternalName, SigRef, Type};
 use crate::isa::{CallConv, RegInfo, RegUnit};
 use core::fmt;
 use core::str::FromStr;
-use std::vec::Vec;
+use alloc::vec::Vec;
 
 /// Function signature.
 ///
@@ -335,7 +335,7 @@ impl fmt::Display for ExtFuncData {
 mod tests {
     use super::*;
     use crate::ir::types::{B8, F32, I32};
-    use std::string::ToString;
+    use alloc::string::ToString;
 
     #[test]
     fn argument_type() {

cranelift/codegen/src/ir/extname.rs

@@ -121,7 +121,7 @@ mod tests {
     use super::ExternalName;
     use crate::ir::LibCall;
     use core::u32;
-    use std::string::ToString;
+    use alloc::string::ToString;
 
     #[test]
     fn display_testcase() {

cranelift/codegen/src/ir/immediates.rs

@@ -8,7 +8,7 @@ use core::fmt::{self, Display, Formatter};
 use core::iter::FromIterator;
 use core::str::{from_utf8, FromStr};
 use core::{i32, u32};
-use std::vec::Vec;
+use alloc::vec::Vec;
 
 /// Convert a type into a vector of bytes; all implementors in this file must use little-endian
 /// orderings of bytes to match WebAssembly's little-endianness.
@@ -940,7 +940,7 @@ mod tests {
     use core::mem;
     use core::str::FromStr;
     use core::{f32, f64};
-    use std::string::ToString;
+    use alloc::string::ToString;
 
     #[test]
     fn format_imm64() {

cranelift/codegen/src/ir/instructions.rs

@@ -9,7 +9,7 @@
 use core::fmt::{self, Display, Formatter};
 use core::ops::{Deref, DerefMut};
 use core::str::FromStr;
-use std::vec::Vec;
+use alloc::vec::Vec;
 
 use crate::ir;
 use crate::ir::types;
@@ -560,7 +560,7 @@ pub enum ResolvedConstraint {
 #[cfg(test)]
 mod tests {
     use super::*;
-    use std::string::ToString;
+    use alloc::string::ToString;
 
     #[test]
     fn opcodes() {

cranelift/codegen/src/ir/jumptable.rs

@@ -6,7 +6,7 @@
 use crate::ir::entities::Ebb;
 use core::fmt::{self, Display, Formatter};
 use core::slice::{Iter, IterMut};
-use std::vec::Vec;
+use alloc::vec::Vec;
 
 /// Contents of a jump table.
 ///
@@ -85,7 +85,7 @@ mod tests {
     use super::JumpTableData;
     use crate::entity::EntityRef;
     use crate::ir::Ebb;
-    use std::string::ToString;
+    use alloc::string::ToString;
 
     #[test]
     fn empty() {

cranelift/codegen/src/ir/layout.rs

@@ -751,7 +751,7 @@ mod tests {
     use crate::entity::EntityRef;
     use crate::ir::{Ebb, Inst, ProgramOrder, SourceLoc};
     use core::cmp::Ordering;
-    use std::vec::Vec;
+    use alloc::vec::Vec;
 
     struct LayoutCursor<'f> {
         /// Borrowed function layout. Public so it can be re-borrowed from this cursor.

cranelift/codegen/src/ir/libcall.rs

@@ -209,7 +209,7 @@ fn make_funcref(
 #[cfg(test)]
 mod tests {
     use super::*;
-    use std::string::ToString;
+    use alloc::string::ToString;
 
     #[test]
     fn display() {

cranelift/codegen/src/ir/mod.rs

@@ -100,7 +100,7 @@ pub struct ValueLabelStart {
 #[derive(Debug, Clone)]
 pub enum ValueLabelAssignments {
     /// Original value labels assigned at transform.
-    Starts(std::vec::Vec<ValueLabelStart>),
+    Starts(alloc::vec::Vec<ValueLabelStart>),
 
     /// A value alias to original value.
     Alias {

cranelift/codegen/src/ir/progpoint.rs

@@ -148,7 +148,7 @@ mod tests {
     use super::*;
     use crate::entity::EntityRef;
     use crate::ir::{Ebb, Inst};
-    use std::string::ToString;
+    use alloc::string::ToString;
 
     #[test]
     fn convert() {

cranelift/codegen/src/ir/sourceloc.rs

@@ -54,7 +54,7 @@ impl fmt::Display for SourceLoc {
 #[cfg(test)]
 mod tests {
     use crate::ir::SourceLoc;
-    use std::string::ToString;
+    use alloc::string::ToString;
 
     #[test]
     fn display() {

cranelift/codegen/src/ir/stackslot.rs

@@ -11,7 +11,7 @@ use core::fmt;
 use core::ops::{Index, IndexMut};
 use core::slice;
 use core::str::FromStr;
-use std::vec::Vec;
+use alloc::vec::Vec;
 
 #[cfg(feature = "enable-serde")]
 use serde::{Deserialize, Serialize};
@@ -343,7 +343,7 @@ mod tests {
     use super::*;
     use crate::ir::types;
     use crate::ir::Function;
-    use std::string::ToString;
+    use alloc::string::ToString;
 
     #[test]
     fn stack_slot() {

cranelift/codegen/src/ir/trapcode.rs

@@ -103,7 +103,7 @@ impl FromStr for TrapCode {
 #[cfg(test)]
 mod tests {
     use super::*;
-    use std::string::ToString;
+    use alloc::string::ToString;
 
     // Everything but user-defined codes.
     const CODES: [TrapCode; 11] = [

cranelift/codegen/src/ir/types.rs

@@ -363,7 +363,7 @@ impl Default for Type {
 #[cfg(test)]
 mod tests {
     use super::*;
-    use std::string::ToString;
+    use alloc::string::ToString;
 
     #[test]
     fn basic_scalars() {