Update supported features in the generic CPU configuration

Accompanying https://reviews.llvm.org/D125728, this updates LLVM
Codegen's "generic" CPU to enable the same new features.

Differential Revision: https://reviews.llvm.org/D125729

Author: sunfishcode

llvm/lib/Target/WebAssembly/WebAssembly.td

@@ -97,7 +97,13 @@ def WebAssemblyInstrInfo : InstrInfo;
 def : ProcessorModel<"mvp", NoSchedModel, []>;
 
 // Generic processor: latest stable version.
-def : ProcessorModel<"generic", NoSchedModel, []>;
+//
+// This includes features that have achieved phase 4 of the standards process,
+// and that are expected to work for most users in the current time, with
+// consideration given to available support in relevant engines and tools, and
+// the importance of the features.
+def : ProcessorModel<"generic", NoSchedModel,
+                      [FeatureSignExt, FeatureMutableGlobals]>;
 
 // Latest and greatest experimental version of WebAssembly. Bugs included!
 def : ProcessorModel<"bleeding-edge", NoSchedModel,

llvm/test/CodeGen/WebAssembly/PR41149.ll

@@ -13,9 +13,8 @@ define void @mod() {
 ; CHECK-NEXT:    i32.load8_u 0
 ; CHECK-NEXT:    local.tee 0
 ; CHECK-NEXT:    local.get 0
-; CHECK-NEXT:    i32.const 24
-; CHECK-NEXT:    i32.shl
-; CHECK-NEXT:    i32.const 31
+; CHECK-NEXT:    i32.extend8_s
+; CHECK-NEXT:    i32.const 7
 ; CHECK-NEXT:    i32.shr_s
 ; CHECK-NEXT:    local.tee 0
 ; CHECK-NEXT:    i32.xor

llvm/test/CodeGen/WebAssembly/bulk-memory.ll

@@ -1,5 +1,5 @@
-; RUN: llc < %s -asm-verbose=false -verify-machineinstrs -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -wasm-keep-registers -mattr=+bulk-memory | FileCheck %s --check-prefixes CHECK,BULK-MEM
-; RUN: llc < %s -asm-verbose=false -verify-machineinstrs -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -wasm-keep-registers -mattr=-bulk-memory | FileCheck %s --check-prefixes CHECK,NO-BULK-MEM
+; RUN: llc < %s -asm-verbose=false -verify-machineinstrs -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -wasm-keep-registers -mcpu=mvp -mattr=+bulk-memory | FileCheck %s --check-prefixes CHECK,BULK-MEM
+; RUN: llc < %s -asm-verbose=false -verify-machineinstrs -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -wasm-keep-registers -mcpu=mvp -mattr=-bulk-memory | FileCheck %s --check-prefixes CHECK,NO-BULK-MEM
 
 ; Test that basic bulk memory codegen works correctly
 

llvm/test/CodeGen/WebAssembly/bulk-memory64.ll

@@ -1,5 +1,5 @@
-; RUN: llc < %s -asm-verbose=false -verify-machineinstrs -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -wasm-keep-registers -mattr=+bulk-memory | FileCheck %s --check-prefixes CHECK,BULK-MEM
-; RUN: llc < %s -asm-verbose=false -verify-machineinstrs -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -wasm-keep-registers -mattr=-bulk-memory | FileCheck %s --check-prefixes CHECK,NO-BULK-MEM
+; RUN: llc < %s -asm-verbose=false -verify-machineinstrs -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -wasm-keep-registers -mcpu=mvp -mattr=+bulk-memory | FileCheck %s --check-prefixes CHECK,BULK-MEM
+; RUN: llc < %s -asm-verbose=false -verify-machineinstrs -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -wasm-keep-registers -mcpu=mvp -mattr=-bulk-memory | FileCheck %s --check-prefixes CHECK,NO-BULK-MEM
 
 ; Test that basic bulk memory codegen works correctly
 

llvm/test/CodeGen/WebAssembly/byval.ll

@@ -1,5 +1,5 @@
-; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -wasm-keep-registers -verify-machineinstrs | FileCheck %s
-; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -wasm-keep-registers -verify-machineinstrs -fast-isel | FileCheck %s
+; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -wasm-keep-registers -verify-machineinstrs -mcpu=mvp | FileCheck %s
+; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -wasm-keep-registers -verify-machineinstrs -mcpu=mvp -fast-isel | FileCheck %s
 
 target triple = "wasm32-unknown-unknown"
 

llvm/test/CodeGen/WebAssembly/conv-trap.ll

@@ -1,4 +1,4 @@
-; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -wasm-keep-registers -mattr=-nontrapping-fptoint | FileCheck %s
+; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -wasm-keep-registers -mcpu=mvp -mattr=-nontrapping-fptoint | FileCheck %s
 
 ; Test that basic conversion operations assemble as expected using
 ; the trapping opcodes and explicit code to suppress the trapping.

llvm/test/CodeGen/WebAssembly/fast-isel-noreg.ll

@@ -1,5 +1,5 @@
-; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -wasm-keep-registers -verify-machineinstrs | FileCheck %s
-; RUN: llc < %s -asm-verbose=false -wasm-keep-registers -fast-isel -verify-machineinstrs | FileCheck %s
+; RUN: llc < %s -asm-verbose=false -mcpu=mvp -disable-wasm-fallthrough-return-opt -wasm-keep-registers -verify-machineinstrs | FileCheck %s
+; RUN: llc < %s -asm-verbose=false -mcpu=mvp -wasm-keep-registers -fast-isel -verify-machineinstrs | FileCheck %s
 
 ; Test that FastISel does not generate instructions with NoReg
 

llvm/test/CodeGen/WebAssembly/global.ll

@@ -1,5 +1,5 @@
-; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -wasm-keep-registers -mattr=-atomics | FileCheck %s
-; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -wasm-keep-registers -mattr=+atomics | FileCheck %s
+; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -wasm-keep-registers -mcpu=mvp -mattr=-atomics | FileCheck %s
+; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -wasm-keep-registers -mcpu=mvp -mattr=+atomics | FileCheck %s
 
 ; Test that globals assemble as expected.
 

llvm/test/CodeGen/WebAssembly/legalize.ll

@@ -1,4 +1,4 @@
-; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -wasm-keep-registers | FileCheck %s
+; RUN: llc < %s -asm-verbose=false -mcpu=mvp -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -wasm-keep-registers | FileCheck %s
 
 ; Test various types and operators that need to be legalized.
 

llvm/test/CodeGen/WebAssembly/mem-intrinsics.ll

@@ -1,4 +1,4 @@
-; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -wasm-keep-registers -tail-dup-placement=0 | FileCheck %s
+; RUN: llc < %s -asm-verbose=false -mcpu=mvp -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -wasm-keep-registers -tail-dup-placement=0 | FileCheck %s
 
 ; Test memcpy, memmove, and memset intrinsics.