[NFC][TLI] Improve tests for ArmPL and SLEEF Intrinsics.

Auto-generate test `armpl-intrinsics.ll`, and use active lane mask to
have shorter `shufflevector` check lines.

Update scripts now add `@llvm.compiler.used` instead of using the regex:
`@[[LLVM_COMPILER_USED:[a-zA-Z0-9_$"\\.-]+]]`

Author: paschalis-mpeis

llvm/test/CodeGen/AArch64/replace-intrinsics-with-veclib-armpl.ll

@@ -15,7 +15,7 @@ declare <vscale x 2 x double> @llvm.cos.nxv2f64(<vscale x 2 x double>)
 declare <vscale x 4 x float> @llvm.cos.nxv4f32(<vscale x 4 x float>)
 
 ;.
-; CHECK: @[[LLVM_COMPILER_USED:[a-zA-Z0-9_$"\\.-]+]] = appending global [16 x ptr] [ptr @armpl_vcosq_f64, ptr @armpl_vcosq_f32, ptr @armpl_vsinq_f64, ptr @armpl_vsinq_f32, ptr @armpl_vexpq_f64, ptr @armpl_vexpq_f32, ptr @armpl_vexp2q_f64, ptr @armpl_vexp2q_f32, ptr @armpl_vexp10q_f64, ptr @armpl_vexp10q_f32, ptr @armpl_vlogq_f64, ptr @armpl_vlogq_f32, ptr @armpl_vlog2q_f64, ptr @armpl_vlog2q_f32, ptr @armpl_vlog10q_f64, ptr @armpl_vlog10q_f32], section "llvm.metadata"
+; CHECK: @llvm.compiler.used = appending global [16 x ptr] [ptr @armpl_vcosq_f64, ptr @armpl_vcosq_f32, ptr @armpl_vsinq_f64, ptr @armpl_vsinq_f32, ptr @armpl_vexpq_f64, ptr @armpl_vexpq_f32, ptr @armpl_vexp2q_f64, ptr @armpl_vexp2q_f32, ptr @armpl_vexp10q_f64, ptr @armpl_vexp10q_f32, ptr @armpl_vlogq_f64, ptr @armpl_vlogq_f32, ptr @armpl_vlog2q_f64, ptr @armpl_vlog2q_f32, ptr @armpl_vlog10q_f64, ptr @armpl_vlog10q_f32], section "llvm.metadata"
 ;.
 define <2 x double> @llvm_cos_f64(<2 x double> %in) {
 ; CHECK-LABEL: define <2 x double> @llvm_cos_f64

llvm/test/CodeGen/AArch64/replace-intrinsics-with-veclib-sleef.ll

@@ -4,7 +4,7 @@
 target triple = "aarch64-unknown-linux-gnu"
 
 ;.
-; CHECK: @[[LLVM_COMPILER_USED:[a-zA-Z0-9_$"\\.-]+]] = appending global [16 x ptr] [ptr @_ZGVnN2v_cos, ptr @_ZGVnN4v_cosf, ptr @_ZGVnN2v_exp, ptr @_ZGVnN4v_expf, ptr @_ZGVnN2v_exp2, ptr @_ZGVnN4v_exp2f, ptr @_ZGVnN2v_exp10, ptr @_ZGVnN4v_exp10f, ptr @_ZGVnN2v_log, ptr @_ZGVnN4v_logf, ptr @_ZGVnN2v_log10, ptr @_ZGVnN4v_log10f, ptr @_ZGVnN2v_log2, ptr @_ZGVnN4v_log2f, ptr @_ZGVnN2v_sin, ptr @_ZGVnN4v_sinf], section "llvm.metadata"
+; CHECK: @llvm.compiler.used = appending global [16 x ptr] [ptr @_ZGVnN2v_cos, ptr @_ZGVnN4v_cosf, ptr @_ZGVnN2v_exp, ptr @_ZGVnN4v_expf, ptr @_ZGVnN2v_exp2, ptr @_ZGVnN4v_exp2f, ptr @_ZGVnN2v_exp10, ptr @_ZGVnN4v_exp10f, ptr @_ZGVnN2v_log, ptr @_ZGVnN4v_logf, ptr @_ZGVnN2v_log10, ptr @_ZGVnN4v_log10f, ptr @_ZGVnN2v_log2, ptr @_ZGVnN4v_log2f, ptr @_ZGVnN2v_sin, ptr @_ZGVnN4v_sinf], section "llvm.metadata"
 ;.
 define <2 x double> @llvm_ceil_f64(<2 x double> %in) {
 ; CHECK-LABEL: @llvm_ceil_f64(