[CodeGen] remove instnamer dependency from test file; NFC

This file was originally added without instnamer at:
rL283716 / fe2b9b4

But that was reverted and the test file reappeared with instnamer at:
rL285688 / 62f516f

I'm not seeing any difference locally from checking nameless values,
so trying to remove a layering violation and see if that can
survive the build bots.

clang/test/CodeGen/x86-inline-asm-v-constraint.c

@@ -1,27 +1,27 @@
-// RUN: %clang_cc1 %s -triple x86_64-unknown-linux-gnu -emit-llvm -target-cpu x86-64 -o - |opt -instnamer -S |FileCheck %s --check-prefix SSE
-// RUN: %clang_cc1 %s -triple x86_64-unknown-linux-gnu -emit-llvm -target-cpu skylake -D AVX -o -|opt -instnamer -S  | FileCheck %s --check-prefixes AVX,SSE
-// RUN: %clang_cc1 %s -triple x86_64-unknown-linux-gnu -emit-llvm -target-cpu skylake-avx512 -D AVX512 -D AVX -o -|opt -instnamer -S  | FileCheck %s --check-prefixes AVX512,AVX,SSE
-// RUN: %clang_cc1 %s -triple x86_64-unknown-linux-gnu -emit-llvm -target-cpu knl -D AVX -D AVX512 -o - |opt -instnamer -S  | FileCheck %s --check-prefixes AVX512,AVX,SSE
+// RUN: %clang_cc1 %s -triple x86_64-unknown-linux-gnu -emit-llvm -target-cpu x86-64 -o - |FileCheck %s --check-prefix SSE
+// RUN: %clang_cc1 %s -triple x86_64-unknown-linux-gnu -emit-llvm -target-cpu skylake -D AVX -o - | FileCheck %s --check-prefixes AVX,SSE
+// RUN: %clang_cc1 %s -triple x86_64-unknown-linux-gnu -emit-llvm -target-cpu skylake-avx512 -D AVX512 -D AVX -o - | FileCheck %s --check-prefixes AVX512,AVX,SSE
+// RUN: %clang_cc1 %s -triple x86_64-unknown-linux-gnu -emit-llvm -target-cpu knl -D AVX -D AVX512 -o - | FileCheck %s --check-prefixes AVX512,AVX,SSE
 
 typedef float __m128 __attribute__ ((vector_size (16)));
 typedef float __m256 __attribute__ ((vector_size (32)));
 typedef float __m512 __attribute__ ((vector_size (64)));
 
-// SSE: call <4 x float> asm "vmovhlps $1, $2, $0", "=v,v,v,~{dirflag},~{fpsr},~{flags}"(i64 %tmp, <4 x float> %tmp1)
+// SSE: call <4 x float> asm "vmovhlps $1, $2, $0", "=v,v,v,~{dirflag},~{fpsr},~{flags}"(i64 %0, <4 x float> %1)
 __m128 testXMM(__m128 _xmm0, long _l) {
   __asm__("vmovhlps %1, %2, %0" :"=v"(_xmm0) : "v"(_l), "v"(_xmm0));
   return _xmm0;
 }
 
-// AVX: call <8 x float> asm "vmovsldup $1, $0", "=v,v,~{dirflag},~{fpsr},~{flags}"(<8 x float> %tmp)
+// AVX: call <8 x float> asm "vmovsldup $1, $0", "=v,v,~{dirflag},~{fpsr},~{flags}"(<8 x float> %0)
 __m256 testYMM(__m256 _ymm0) {
 #ifdef AVX
   __asm__("vmovsldup %1, %0" :"=v"(_ymm0) : "v"(_ymm0));
 #endif
   return _ymm0;
 }
 
-// AVX512: call <16 x float> asm "vpternlogd $$0, $1, $2, $0", "=v,v,v,~{dirflag},~{fpsr},~{flags}"(<16 x float> %tmp, <16 x float> %tmp1)
+// AVX512: call <16 x float> asm "vpternlogd $$0, $1, $2, $0", "=v,v,v,~{dirflag},~{fpsr},~{flags}"(<16 x float> %0, <16 x float> %1)
 __m512 testZMM(__m512 _zmm0, __m512 _zmm1) {
 #ifdef AVX512
   __asm__("vpternlogd $0, %1, %2, %0" :"=v"(_zmm0) : "v"(_zmm1), "v"(_zmm0));