Made test not require -O0

Author: GiuseppeCesarano

llvm/test/CodeGen/AArch64/vector-to-scalar-bitmask.ll

@@ -1,5 +1,5 @@
-; RUN: llc -O0 -mtriple=aarch64-linux-gnu %s -o - | FileCheck %s --check-prefix=CHECK-LE
-; RUN: llc -O0 -mtriple=aarch64_be-linux-gnu %s -o - | FileCheck %s --check-prefix=CHECK-BE
+; RUN: llc -O3 -mtriple=aarch64-linux-gnu %s -o - | FileCheck %s --check-prefix=CHECK-LE
+; RUN: llc -O3 -mtriple=aarch64_be-linux-gnu %s -o - | FileCheck %s --check-prefix=CHECK-BE
 
 @haystack4 = internal unnamed_addr constant [4 x i32] [i32 0, i32 1, i32 2, i32 3], align 4
 @haystack16 = internal unnamed_addr constant [16 x i8] [i8 0, i8 1, i8 2, i8 3, i8 4, i8 5, i8 6, i8 7, i8 8, i8 9, i8 10, i8 11, i8 12, i8 13, i8 14, i8 15], align 16
@@ -13,8 +13,8 @@ define i8 @test4() {
   %haystack = getelementptr inbounds i32, ptr getelementptr inbounds (i8, ptr @haystack4, i64 0), i64 %index_val
   %h_vec = load <4 x i32>, ptr %haystack, align 4
   %cmp_vec = icmp eq <4 x i32> %h_vec, <i32 2, i32 2, i32 2, i32 2>
-  store <4 x i1> %cmp_vec, ptr %matches, align 1
-  %cmp_load = load <4 x i1>, ptr %matches, align 1
+  store volatile <4 x i1> %cmp_vec, ptr %matches, align 1
+  %cmp_load = load volatile <4 x i1>, ptr %matches, align 1
   %extr = extractelement <4 x i1> %cmp_load, i64 2
   %ret = zext i1 %extr to i8
   ret i8 %ret
@@ -28,8 +28,8 @@ define i8 @test16() {
   %haystack = getelementptr inbounds i8, ptr getelementptr inbounds (i8, ptr @haystack16, i64 0), i64 %index_val
   %h_vec = load <16 x i8>, ptr %haystack, align 16
   %cmp_vec = icmp eq <16 x i8> %h_vec, <i8 2, i8 2, i8 2, i8 2, i8 2, i8 2, i8 2, i8 2, i8 2, i8 2, i8 2, i8 2, i8 2, i8 2, i8 2, i8 2>
-  store <16 x i1> %cmp_vec, ptr %matches, align 2
-  %cmp_load = load <16 x i1>, ptr %matches, align 2
+  store volatile <16 x i1> %cmp_vec, ptr %matches, align 2
+  %cmp_load = load volatile <16 x i1>, ptr %matches, align 2
   %extr = extractelement <16 x i1> %cmp_load, i64 7
   %ret = zext i1 %extr to i8
   ret i8 %ret