Index: test/CodeGen/ms-inline-asm-avx512-relaxations.c
===================================================================
--- test/CodeGen/ms-inline-asm-avx512-relaxations.c
+++ test/CodeGen/ms-inline-asm-avx512-relaxations.c
@@ -0,0 +1,19 @@
+// RUN: %clang_cc1 %s -triple x86_64-unknown-linux-gnu -emit-llvm -target-cpu skylake-avx512 -fasm-blocks -o - | FileCheck %s
+
+// Minimal reproducer
+// Case1: Check integrity of inspected patch upon broadcasting
+// Case2: Check integrity of inspected patch upon SIMD mem ref
+// Case3: Check we don't mess up with non-SIMD mem ref
+// Case4: Check non-AVX512 insts aren't affected
+
+void F() {
+  char a;
+  // CHECK: vaddps xmm1, xmm2, dword ptr $0{1to4}
+  // CHECK: vaddps xmm1, xmm2, xmmword ptr $1
+  // CHECK: vcomiss xmm1, byte ptr $2
+  // CHECK: mov rax, byte ptr $3
+  __asm vaddps xmm1, xmm2, [a]{1to4}
+  __asm vaddps xmm1, xmm2, [a]
+  __asm vcomiss xmm1, [a]
+  __asm mov rax, [a]
+}