[X86] Simplify regex in pr42616.ll test (#71980)

Author: tstellar

llvm/test/CodeGen/X86/pr42616.ll

@@ -2,7 +2,7 @@
 
 define <2 x double> @pr42616(<2 x double> %a0, <2 x double> %a1, ptr %p) {
   ;CHECK-LABEL: pr42616
-  ;CHECK:       movhpd (%esp), {{%xmm[0-9][0-9]*}} {{.*#+}} 16-byte Folded Reload
+  ;CHECK:       movhpd (%esp), %xmm{{[0-9]+}} # 16-byte Folded Reload
   %1 = tail call <2 x i64> asm sideeffect "nop", "=x,~{xmm2},~{xmm3},~{xmm4},~{xmm5},~{xmm6},~{xmm7},~{xmm8},~{xmm9},~{xmm10},~{xmm11},~{xmm12},~{xmm13},~{xmm14},~{xmm15},~{flags}"()
   %2 = load <2 x double>, ptr %p, align 1
   %3 = shufflevector <2 x double> %a1, <2 x double> %2, <2 x i32> <i32 2, i32 0>