diff --git a/clang/test/CodeGen/avx512cdintrin.c b/clang/test/CodeGen/avx512cdintrin.c
index 6483d7e8dda56a..b15126808b8019 100644
--- a/clang/test/CodeGen/avx512cdintrin.c
+++ b/clang/test/CodeGen/avx512cdintrin.c
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +avx512cd -emit-llvm -o - -Wall -Werror | FileCheck %s
+// RUN: %clang_cc1 -flax-vector-conversions=none -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +avx512cd -emit-llvm -o - -Wall -Werror | FileCheck %s
 
 
 #include <immintrin.h>
diff --git a/clang/test/CodeGen/avx512vbmivl-builtin.c b/clang/test/CodeGen/avx512vbmivl-builtin.c
index 0bf9165f6c6af5..2562da26d6ce79 100644
--- a/clang/test/CodeGen/avx512vbmivl-builtin.c
+++ b/clang/test/CodeGen/avx512vbmivl-builtin.c
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +avx512vbmi -target-feature +avx512vl -target-feature +avx512bw -emit-llvm -o - -Wall -Werror | FileCheck %s
+// RUN: %clang_cc1 -flax-vector-conversions=none -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +avx512vbmi -target-feature +avx512vl -target-feature +avx512bw -emit-llvm -o - -Wall -Werror | FileCheck %s
 
 
 #include <immintrin.h>
diff --git a/clang/test/CodeGen/avx512vl-builtins-constrained-cmp.c b/clang/test/CodeGen/avx512vl-builtins-constrained-cmp.c
index ae052dfffbab7f..6be4f614561a69 100644
--- a/clang/test/CodeGen/avx512vl-builtins-constrained-cmp.c
+++ b/clang/test/CodeGen/avx512vl-builtins-constrained-cmp.c
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -ffreestanding %s -fexperimental-new-pass-manager -triple=x86_64-apple-darwin -target-feature +avx512f -target-feature +avx512vl -emit-llvm -ffp-exception-behavior=strict -o - -Wall -Werror | FileCheck %s
+// RUN: %clang_cc1 -flax-vector-conversions=none -ffreestanding %s -fexperimental-new-pass-manager -triple=x86_64-apple-darwin -target-feature +avx512f -target-feature +avx512vl -emit-llvm -ffp-exception-behavior=strict -o - -Wall -Werror | FileCheck %s
 
 #include <immintrin.h>
 
diff --git a/clang/test/CodeGen/avx512vpopcntdqintrin.c b/clang/test/CodeGen/avx512vpopcntdqintrin.c
index e7c797c1954997..22c44bc21edfcb 100644
--- a/clang/test/CodeGen/avx512vpopcntdqintrin.c
+++ b/clang/test/CodeGen/avx512vpopcntdqintrin.c
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +avx512vpopcntdq -emit-llvm -o - -Wall -Werror | FileCheck %s
+// RUN: %clang_cc1 -flax-vector-conversions=none -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +avx512vpopcntdq -emit-llvm -o - -Wall -Werror | FileCheck %s
 
 #include <immintrin.h>
 
diff --git a/clang/test/CodeGen/avx512vpopcntdqvlintrin.c b/clang/test/CodeGen/avx512vpopcntdqvlintrin.c
index 010cb6b4f34475..686bfb986ceb33 100644
--- a/clang/test/CodeGen/avx512vpopcntdqvlintrin.c
+++ b/clang/test/CodeGen/avx512vpopcntdqvlintrin.c
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +avx512vpopcntdq -target-feature +avx512vl -emit-llvm -o - -Wall -Werror | FileCheck %s
+// RUN: %clang_cc1 -flax-vector-conversions=none -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +avx512vpopcntdq -target-feature +avx512vl -emit-llvm -o - -Wall -Werror | FileCheck %s
 
 #include <immintrin.h>
 
diff --git a/clang/test/CodeGen/gfni-builtins.c b/clang/test/CodeGen/gfni-builtins.c
index 0d10d7aeacd6a7..61d957d59e7684 100644
--- a/clang/test/CodeGen/gfni-builtins.c
+++ b/clang/test/CodeGen/gfni-builtins.c
@@ -1,6 +1,6 @@
-// RUN: %clang_cc1 -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +gfni -emit-llvm -o - | FileCheck %s --check-prefix SSE
-// RUN: %clang_cc1 -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +gfni -target-feature +avx -emit-llvm -o - | FileCheck %s --check-prefixes SSE,AVX
-// RUN: %clang_cc1 -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +gfni -target-feature +avx512bw -target-feature +avx512vl -emit-llvm -o - | FileCheck %s --check-prefixes SSE,AVX,AVX512
+// RUN: %clang_cc1 -flax-vector-conversions=none -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +gfni -emit-llvm -o - | FileCheck %s --check-prefix SSE
+// RUN: %clang_cc1 -flax-vector-conversions=none -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +gfni -target-feature +avx -emit-llvm -o - | FileCheck %s --check-prefixes SSE,AVX
+// RUN: %clang_cc1 -flax-vector-conversions=none -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +gfni -target-feature +avx512bw -target-feature +avx512vl -emit-llvm -o - | FileCheck %s --check-prefixes SSE,AVX,AVX512
 
 #include <immintrin.h>
 
diff --git a/clang/test/CodeGen/intel-avx512vlvp2intersect.c b/clang/test/CodeGen/intel-avx512vlvp2intersect.c
index c607a6996928ee..1b360d1d7c5ba7 100644
--- a/clang/test/CodeGen/intel-avx512vlvp2intersect.c
+++ b/clang/test/CodeGen/intel-avx512vlvp2intersect.c
@@ -1,5 +1,5 @@
-// RUN: %clang_cc1 %s -ffreestanding -triple=x86_64-unknown-unknown -target-feature +avx512vp2intersect -target-feature +avx512vl -emit-llvm -o - -Wall -Werror | FileCheck %s
-// RUN: %clang_cc1 %s -ffreestanding -triple=i386-unknown-unknown -target-feature +avx512vp2intersect -target-feature +avx512vl -emit-llvm -o - -Wall -Werror | FileCheck %s
+// RUN: %clang_cc1 %s -flax-vector-conversions=none -ffreestanding -triple=x86_64-unknown-unknown -target-feature +avx512vp2intersect -target-feature +avx512vl -emit-llvm -o - -Wall -Werror | FileCheck %s
+// RUN: %clang_cc1 %s -flax-vector-conversions=none -ffreestanding -triple=i386-unknown-unknown -target-feature +avx512vp2intersect -target-feature +avx512vl -emit-llvm -o - -Wall -Werror | FileCheck %s
 
 #include <immintrin.h>
 
diff --git a/clang/test/CodeGen/intel-avx512vp2intersect.c b/clang/test/CodeGen/intel-avx512vp2intersect.c
index bcbf6076eec33e..2a3d38acfbf2c3 100644
--- a/clang/test/CodeGen/intel-avx512vp2intersect.c
+++ b/clang/test/CodeGen/intel-avx512vp2intersect.c
@@ -1,5 +1,5 @@
-// RUN: %clang_cc1 %s -ffreestanding -triple=x86_64-unknown-unknown -target-feature +avx512vp2intersect -emit-llvm -o - -Wall -Werror | FileCheck %s
-// RUN: %clang_cc1 %s -ffreestanding -triple=i386-unknown-unknown -target-feature +avx512vp2intersect -emit-llvm -o - -Wall -Werror | FileCheck %s
+// RUN: %clang_cc1 %s -flax-vector-conversions=none -ffreestanding -triple=x86_64-unknown-unknown -target-feature +avx512vp2intersect -emit-llvm -o - -Wall -Werror | FileCheck %s
+// RUN: %clang_cc1 %s -flax-vector-conversions=none -ffreestanding -triple=i386-unknown-unknown -target-feature +avx512vp2intersect -emit-llvm -o - -Wall -Werror | FileCheck %s
 
 #include <immintrin.h>
 
diff --git a/clang/test/CodeGen/vaes-builtins.c b/clang/test/CodeGen/vaes-builtins.c
index 1dd5784814d3a5..eea1f408b3ce86 100644
--- a/clang/test/CodeGen/vaes-builtins.c
+++ b/clang/test/CodeGen/vaes-builtins.c
@@ -1,5 +1,5 @@
-// RUN: %clang_cc1 -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +vaes -emit-llvm -o - | FileCheck %s --check-prefix AVX
-// RUN: %clang_cc1 -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +vaes -target-feature +avx512f -emit-llvm -o - | FileCheck %s --check-prefixes AVX,AVX512
+// RUN: %clang_cc1 -flax-vector-conversions=none -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +vaes -emit-llvm -o - | FileCheck %s --check-prefix AVX
+// RUN: %clang_cc1 -flax-vector-conversions=none -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +vaes -target-feature +avx512f -emit-llvm -o - | FileCheck %s --check-prefixes AVX,AVX512
 
 #include <immintrin.h>
 
diff --git a/clang/test/CodeGen/vpclmulqdq-builtins.c b/clang/test/CodeGen/vpclmulqdq-builtins.c
index 15eef399bcdf7e..aa2b8bca912684 100644
--- a/clang/test/CodeGen/vpclmulqdq-builtins.c
+++ b/clang/test/CodeGen/vpclmulqdq-builtins.c
@@ -1,5 +1,5 @@
-// RUN: %clang_cc1 -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +vpclmulqdq -emit-llvm -o - | FileCheck %s --check-prefix AVX
-// RUN: %clang_cc1 -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +vpclmulqdq -target-feature +avx512f -emit-llvm -o - | FileCheck %s --check-prefixes AVX,AVX512
+// RUN: %clang_cc1 -flax-vector-conversions=none -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +vpclmulqdq -emit-llvm -o - | FileCheck %s --check-prefix AVX
+// RUN: %clang_cc1 -flax-vector-conversions=none -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +vpclmulqdq -target-feature +avx512f -emit-llvm -o - | FileCheck %s --check-prefixes AVX,AVX512
 
 #include <immintrin.h>