[X86] atomic-load-store.ll - add SSE/AVX level coverage for future vector atomic memory operations

Help #138635 where we need to ensure correct SSE/AVX load instructions

Author: RKSimon

llvm/test/CodeGen/X86/atomic-load-store.ll

@@ -1,10 +1,16 @@
 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
-; RUN: llc < %s -mtriple=x86_64-apple-macosx10.7.0 -verify-machineinstrs | FileCheck %s
-; RUN: llc < %s -mtriple=x86_64-apple-macosx10.7.0 -verify-machineinstrs -O0 | FileCheck %s
+; RUN: llc < %s -mtriple=x86_64-- -verify-machineinstrs -mcpu=x86-64    | FileCheck %s --check-prefixes=CHECK,CHECK-O3
+; RUN: llc < %s -mtriple=x86_64-- -verify-machineinstrs -mcpu=x86-64-v2 | FileCheck %s --check-prefixes=CHECK,CHECK-O3
+; RUN: llc < %s -mtriple=x86_64-- -verify-machineinstrs -mcpu=x86-64-v3 | FileCheck %s --check-prefixes=CHECK,CHECK-O3
+; RUN: llc < %s -mtriple=x86_64-- -verify-machineinstrs -mcpu=x86-64-v4 | FileCheck %s --check-prefixes=CHECK,CHECK-O3
+; RUN: llc < %s -mtriple=x86_64-- -verify-machineinstrs -O0 -mcpu=x86-64    | FileCheck %s --check-prefixes=CHECK,CHECK-O0
+; RUN: llc < %s -mtriple=x86_64-- -verify-machineinstrs -O0 -mcpu=x86-64-v2 | FileCheck %s --check-prefixes=CHECK,CHECK-O0
+; RUN: llc < %s -mtriple=x86_64-- -verify-machineinstrs -O0 -mcpu=x86-64-v3 | FileCheck %s --check-prefixes=CHECK,CHECK-O0
+; RUN: llc < %s -mtriple=x86_64-- -verify-machineinstrs -O0 -mcpu=x86-64-v4 | FileCheck %s --check-prefixes=CHECK,CHECK-O0
 
 define void @test1(ptr %ptr, i32 %val1) {
 ; CHECK-LABEL: test1:
-; CHECK:       ## %bb.0:
+; CHECK:       # %bb.0:
 ; CHECK-NEXT:    xchgl %esi, (%rdi)
 ; CHECK-NEXT:    retq
   store atomic i32 %val1, ptr %ptr seq_cst, align 4
@@ -13,7 +19,7 @@ define void @test1(ptr %ptr, i32 %val1) {
 
 define void @test2(ptr %ptr, i32 %val1) {
 ; CHECK-LABEL: test2:
-; CHECK:       ## %bb.0:
+; CHECK:       # %bb.0:
 ; CHECK-NEXT:    movl %esi, (%rdi)
 ; CHECK-NEXT:    retq
   store atomic i32 %val1, ptr %ptr release, align 4
@@ -22,9 +28,12 @@ define void @test2(ptr %ptr, i32 %val1) {
 
 define i32 @test3(ptr %ptr) {
 ; CHECK-LABEL: test3:
-; CHECK:       ## %bb.0:
+; CHECK:       # %bb.0:
 ; CHECK-NEXT:    movl (%rdi), %eax
 ; CHECK-NEXT:    retq
   %val = load atomic i32, ptr %ptr seq_cst, align 4
   ret i32 %val
 }
+;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
+; CHECK-O0: {{.*}}
+; CHECK-O3: {{.*}}