[LLVM][AArch64] Enable SVEIntrinsicOpts at all optimisation levels.

Author: paulwalker-arm

flang/test/Driver/default-backend-pipelines.f90

@@ -5,9 +5,9 @@
 ! RUN: %flang_fc1 -S -O2 %s -triple aarch64-unknown-linux-gnu -mllvm -debug-pass=Structure -o /dev/null 2>&1 | FileCheck %s --check-prefix=CHECK-O2
 ! RUN: %flang_fc1 -S -O3 %s -triple aarch64-unknown-linux-gnu -mllvm -debug-pass=Structure -o /dev/null 2>&1 | FileCheck %s --check-prefix=CHECK-O3
 
-! CHECK-O2-NOT: SVE intrinsics optimizations
+! CHECK-O2-NOT: Optimize selects
 
-! CHECK-O3: SVE intrinsics optimizations
+! CHECK-O3: Optimize selects
 
 subroutine simple_loop
   integer :: i

llvm/lib/Target/AArch64/AArch64TargetMachine.cpp

@@ -588,7 +588,7 @@ void AArch64PassConfig::addIRPasses() {
 
   // Expand any SVE vector library calls that we can't code generate directly.
   if (EnableSVEIntrinsicOpts &&
-      TM->getOptLevel() == CodeGenOptLevel::Aggressive)
+      TM->getOptLevel() != CodeGenOptLevel::None)
     addPass(createSVEIntrinsicOptsPass());
 
   // Cmpxchg instructions are often used with a subsequent comparison to