[CodeGen] Add machine verification to some tests

This is to catch errors in an upcoming patch.

Author: jayfoad

llvm/test/CodeGen/AVR/stdwstk.ll

@@ -1,4 +1,4 @@
-; RUN: llc < %s -march=avr -mcpu=atmega328 -O1 | FileCheck %s
+; RUN: llc < %s -march=avr -mcpu=atmega328 -O1 -verify-machineinstrs | FileCheck %s
 ; CHECK-NOT: stdwstk
 
 ; Checks that we expand STDWSPQRr always - even if it appears outside of the

llvm/test/CodeGen/M68k/Atomics/rmw.ll

@@ -1,9 +1,9 @@
 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
-; RUN: llc %s -o - -mtriple=m68k -mcpu=M68000 | FileCheck %s --check-prefix=NO-ATOMIC
-; RUN: llc %s -o - -mtriple=m68k -mcpu=M68010 | FileCheck %s --check-prefix=NO-ATOMIC
-; RUN: llc %s -o - -mtriple=m68k -mcpu=M68020 | FileCheck %s --check-prefix=ATOMIC
-; RUN: llc %s -o - -mtriple=m68k -mcpu=M68030 | FileCheck %s --check-prefix=ATOMIC
-; RUN: llc %s -o - -mtriple=m68k -mcpu=M68040 | FileCheck %s --check-prefix=ATOMIC
+; RUN: llc %s -o - -mtriple=m68k -mcpu=M68000 -verify-machineinstrs | FileCheck %s --check-prefix=NO-ATOMIC
+; RUN: llc %s -o - -mtriple=m68k -mcpu=M68010 -verify-machineinstrs | FileCheck %s --check-prefix=NO-ATOMIC
+; RUN: llc %s -o - -mtriple=m68k -mcpu=M68020 -verify-machineinstrs | FileCheck %s --check-prefix=ATOMIC
+; RUN: llc %s -o - -mtriple=m68k -mcpu=M68030 -verify-machineinstrs | FileCheck %s --check-prefix=ATOMIC
+; RUN: llc %s -o - -mtriple=m68k -mcpu=M68040 -verify-machineinstrs | FileCheck %s --check-prefix=ATOMIC
 
 define i8 @atomicrmw_add_i8(i8 %val, ptr %ptr) {
 ; NO-ATOMIC-LABEL: atomicrmw_add_i8:

llvm/test/CodeGen/X86/half.ll

@@ -1,11 +1,11 @@
 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
-; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -mattr=-f16c -fixup-byte-word-insts=1 \
+; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -mattr=-f16c -fixup-byte-word-insts=1 -verify-machineinstrs \
 ; RUN:   | FileCheck %s -check-prefixes=CHECK,CHECK-LIBCALL,BWON
-; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -mattr=-f16c  -fixup-byte-word-insts=0 \
+; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -mattr=-f16c  -fixup-byte-word-insts=0 -verify-machineinstrs \
 ; RUN:   | FileCheck %s -check-prefixes=CHECK,CHECK-LIBCALL,BWOFF
-; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -mattr=+f16c -fixup-byte-word-insts=1 \
+; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -mattr=+f16c -fixup-byte-word-insts=1 -verify-machineinstrs \
 ; RUN:    | FileCheck %s -check-prefixes=CHECK,BWON,BWON-F16C
-; RUN: llc < %s -mtriple=i686-unknown-linux-gnu -mattr +sse2 -fixup-byte-word-insts=0  \
+; RUN: llc < %s -mtriple=i686-unknown-linux-gnu -mattr +sse2 -fixup-byte-word-insts=0 -verify-machineinstrs \
 ; RUN:    | FileCheck %s -check-prefixes=CHECK-I686
 
 define void @test_load_store(ptr %in, ptr %out) #0 {

llvm/test/CodeGen/X86/ldexp.ll

@@ -1,6 +1,6 @@
 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2
-; RUN: llc -mtriple=x86_64-unknown-unknown < %s | FileCheck -check-prefixes=X64 %s
-; RUN: llc -mtriple=i386-pc-win32 < %s | FileCheck -check-prefix=WIN32 %s
+; RUN: llc -mtriple=x86_64-unknown-unknown -verify-machineinstrs < %s | FileCheck -check-prefixes=X64 %s
+; RUN: llc -mtriple=i386-pc-win32 -verify-machineinstrs < %s | FileCheck -check-prefix=WIN32 %s
 
 define float @ldexp_f32(i8 zeroext %x) {
 ; X64-LABEL: ldexp_f32: