diff --git a/llvm/test/Transforms/SLPVectorizer/X86/hadd-inseltpoison.ll b/llvm/test/Transforms/SLPVectorizer/X86/hadd-inseltpoison.ll
index 5223cac5714898..0217ddcac00468 100644
--- a/llvm/test/Transforms/SLPVectorizer/X86/hadd-inseltpoison.ll
+++ b/llvm/test/Transforms/SLPVectorizer/X86/hadd-inseltpoison.ll
@@ -1,10 +1,10 @@
 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
-; RUN: opt < %s -mtriple=x86_64-unknown -passes=slp-vectorizer,instcombine -S | FileCheck %s --check-prefix=CHECK --check-prefix=SSE
-; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=slm -passes=slp-vectorizer,instcombine -S | FileCheck %s --check-prefix=CHECK --check-prefix=SLM
-; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=corei7-avx -passes=slp-vectorizer,instcombine -S | FileCheck %s --check-prefix=CHECK --check-prefix=AVX
-; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=core-avx2 -passes=slp-vectorizer,instcombine -S | FileCheck %s --check-prefix=CHECK --check-prefix=AVX2
-; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=knl -passes=slp-vectorizer,instcombine -S | FileCheck %s --check-prefix=CHECK --check-prefix=AVX512
-; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=skx -passes=slp-vectorizer,instcombine -S | FileCheck %s --check-prefix=CHECK --check-prefix=AVX512
+; RUN: opt < %s -mtriple=x86_64-unknown -passes=slp-vectorizer,instcombine -S | FileCheck %s --check-prefixes=CHECK,SSE
+; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=slm -passes=slp-vectorizer,instcombine -S | FileCheck %s --check-prefixes=CHECK,SLM
+; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=corei7-avx -passes=slp-vectorizer,instcombine -S | FileCheck %s --check-prefixes=CHECK,AVX,AVX1
+; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=core-avx2 -passes=slp-vectorizer,instcombine -S | FileCheck %s --check-prefixes=CHECK,AVX,AVX2
+; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=knl -passes=slp-vectorizer,instcombine -S | FileCheck %s --check-prefixes=CHECK,AVX,AVX512
+; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=skx -passes=slp-vectorizer,instcombine -S | FileCheck %s --check-prefixes=CHECK,AVX,AVX512
 
 ;
 ; 128-bit vectors
@@ -215,17 +215,17 @@ define <4 x double> @test_v4f64_partial_swizzle(<4 x double> %a, <4 x double> %b
 ; SLM-NEXT:    [[R03:%.*]] = insertelement <4 x double> [[TMP4]], double [[R3]], i64 3
 ; SLM-NEXT:    ret <4 x double> [[R03]]
 ;
-; AVX-LABEL: @test_v4f64_partial_swizzle(
-; AVX-NEXT:    [[A0:%.*]] = extractelement <4 x double> [[A:%.*]], i64 0
-; AVX-NEXT:    [[A1:%.*]] = extractelement <4 x double> [[A]], i64 1
-; AVX-NEXT:    [[R0:%.*]] = fadd double [[A0]], [[A1]]
-; AVX-NEXT:    [[TMP1:%.*]] = shufflevector <4 x double> [[B:%.*]], <4 x double> poison, <2 x i32> <i32 1, i32 2>
-; AVX-NEXT:    [[TMP2:%.*]] = shufflevector <4 x double> [[B]], <4 x double> poison, <2 x i32> <i32 0, i32 3>
-; AVX-NEXT:    [[TMP3:%.*]] = fadd <2 x double> [[TMP1]], [[TMP2]]
-; AVX-NEXT:    [[R00:%.*]] = insertelement <4 x double> poison, double [[R0]], i64 0
-; AVX-NEXT:    [[TMP4:%.*]] = shufflevector <2 x double> [[TMP3]], <2 x double> poison, <4 x i32> <i32 0, i32 1, i32 poison, i32 poison>
-; AVX-NEXT:    [[R031:%.*]] = shufflevector <4 x double> [[R00]], <4 x double> [[TMP4]], <4 x i32> <i32 0, i32 poison, i32 4, i32 5>
-; AVX-NEXT:    ret <4 x double> [[R031]]
+; AVX1-LABEL: @test_v4f64_partial_swizzle(
+; AVX1-NEXT:    [[A0:%.*]] = extractelement <4 x double> [[A:%.*]], i64 0
+; AVX1-NEXT:    [[A1:%.*]] = extractelement <4 x double> [[A]], i64 1
+; AVX1-NEXT:    [[R0:%.*]] = fadd double [[A0]], [[A1]]
+; AVX1-NEXT:    [[TMP1:%.*]] = shufflevector <4 x double> [[B:%.*]], <4 x double> poison, <2 x i32> <i32 1, i32 2>
+; AVX1-NEXT:    [[TMP2:%.*]] = shufflevector <4 x double> [[B]], <4 x double> poison, <2 x i32> <i32 0, i32 3>
+; AVX1-NEXT:    [[TMP3:%.*]] = fadd <2 x double> [[TMP1]], [[TMP2]]
+; AVX1-NEXT:    [[R00:%.*]] = insertelement <4 x double> poison, double [[R0]], i64 0
+; AVX1-NEXT:    [[TMP4:%.*]] = shufflevector <2 x double> [[TMP3]], <2 x double> poison, <4 x i32> <i32 0, i32 1, i32 poison, i32 poison>
+; AVX1-NEXT:    [[R031:%.*]] = shufflevector <4 x double> [[R00]], <4 x double> [[TMP4]], <4 x i32> <i32 0, i32 poison, i32 4, i32 5>
+; AVX1-NEXT:    ret <4 x double> [[R031]]
 ;
 ; AVX2-LABEL: @test_v4f64_partial_swizzle(
 ; AVX2-NEXT:    [[A0:%.*]] = extractelement <4 x double> [[A:%.*]], i64 0
@@ -448,3 +448,5 @@ define <16 x i16> @test_v16i16(<16 x i16> %a, <16 x i16> %b) {
   %rv15 = insertelement <16 x i16> %rv14, i16 %r15, i32 15
   ret <16 x i16> %rv15
 }
+;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
+; AVX: {{.*}}
diff --git a/llvm/test/Transforms/SLPVectorizer/X86/hadd.ll b/llvm/test/Transforms/SLPVectorizer/X86/hadd.ll
index 45514a7a7150d5..c38d116a7a323c 100644
--- a/llvm/test/Transforms/SLPVectorizer/X86/hadd.ll
+++ b/llvm/test/Transforms/SLPVectorizer/X86/hadd.ll
@@ -1,10 +1,10 @@
 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
-; RUN: opt < %s -mtriple=x86_64-unknown -passes=slp-vectorizer,instcombine -S | FileCheck %s --check-prefix=CHECK --check-prefix=SSE
-; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=slm -passes=slp-vectorizer,instcombine -S | FileCheck %s --check-prefix=CHECK --check-prefix=SLM
-; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=corei7-avx -passes=slp-vectorizer,instcombine -S | FileCheck %s --check-prefix=CHECK --check-prefix=AVX
-; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=core-avx2 -passes=slp-vectorizer,instcombine -S | FileCheck %s --check-prefix=CHECK --check-prefix=AVX2
-; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=knl -passes=slp-vectorizer,instcombine -S | FileCheck %s --check-prefix=CHECK --check-prefix=AVX512
-; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=skx -passes=slp-vectorizer,instcombine -S | FileCheck %s --check-prefix=CHECK --check-prefix=AVX512
+; RUN: opt < %s -mtriple=x86_64-unknown -passes=slp-vectorizer,instcombine -S | FileCheck %s --check-prefixes=CHECK,SSE
+; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=slm -passes=slp-vectorizer,instcombine -S | FileCheck %s --check-prefixes=CHECK,SLM
+; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=corei7-avx -passes=slp-vectorizer,instcombine -S | FileCheck %s --check-prefixes=CHECK,AVX,AVX1
+; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=core-avx2 -passes=slp-vectorizer,instcombine -S | FileCheck %s --check-prefixes=CHECK,AVX,AVX2
+; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=knl -passes=slp-vectorizer,instcombine -S | FileCheck %s --check-prefixes=CHECK,AVX,AVX512
+; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=skx -passes=slp-vectorizer,instcombine -S | FileCheck %s --check-prefixes=CHECK,AVX,AVX512
 
 ;
 ; 128-bit vectors
@@ -215,17 +215,17 @@ define <4 x double> @test_v4f64_partial_swizzle(<4 x double> %a, <4 x double> %b
 ; SLM-NEXT:    [[R03:%.*]] = insertelement <4 x double> [[TMP4]], double [[R3]], i64 3
 ; SLM-NEXT:    ret <4 x double> [[R03]]
 ;
-; AVX-LABEL: @test_v4f64_partial_swizzle(
-; AVX-NEXT:    [[A0:%.*]] = extractelement <4 x double> [[A:%.*]], i64 0
-; AVX-NEXT:    [[A1:%.*]] = extractelement <4 x double> [[A]], i64 1
-; AVX-NEXT:    [[R0:%.*]] = fadd double [[A0]], [[A1]]
-; AVX-NEXT:    [[TMP1:%.*]] = shufflevector <4 x double> [[B:%.*]], <4 x double> poison, <2 x i32> <i32 1, i32 2>
-; AVX-NEXT:    [[TMP2:%.*]] = shufflevector <4 x double> [[B]], <4 x double> poison, <2 x i32> <i32 0, i32 3>
-; AVX-NEXT:    [[TMP3:%.*]] = fadd <2 x double> [[TMP1]], [[TMP2]]
-; AVX-NEXT:    [[R00:%.*]] = insertelement <4 x double> undef, double [[R0]], i64 0
-; AVX-NEXT:    [[TMP4:%.*]] = shufflevector <2 x double> [[TMP3]], <2 x double> poison, <4 x i32> <i32 0, i32 1, i32 poison, i32 poison>
-; AVX-NEXT:    [[R031:%.*]] = shufflevector <4 x double> [[R00]], <4 x double> [[TMP4]], <4 x i32> <i32 0, i32 poison, i32 4, i32 5>
-; AVX-NEXT:    ret <4 x double> [[R031]]
+; AVX1-LABEL: @test_v4f64_partial_swizzle(
+; AVX1-NEXT:    [[A0:%.*]] = extractelement <4 x double> [[A:%.*]], i64 0
+; AVX1-NEXT:    [[A1:%.*]] = extractelement <4 x double> [[A]], i64 1
+; AVX1-NEXT:    [[R0:%.*]] = fadd double [[A0]], [[A1]]
+; AVX1-NEXT:    [[TMP1:%.*]] = shufflevector <4 x double> [[B:%.*]], <4 x double> poison, <2 x i32> <i32 1, i32 2>
+; AVX1-NEXT:    [[TMP2:%.*]] = shufflevector <4 x double> [[B]], <4 x double> poison, <2 x i32> <i32 0, i32 3>
+; AVX1-NEXT:    [[TMP3:%.*]] = fadd <2 x double> [[TMP1]], [[TMP2]]
+; AVX1-NEXT:    [[R00:%.*]] = insertelement <4 x double> undef, double [[R0]], i64 0
+; AVX1-NEXT:    [[TMP4:%.*]] = shufflevector <2 x double> [[TMP3]], <2 x double> poison, <4 x i32> <i32 0, i32 1, i32 poison, i32 poison>
+; AVX1-NEXT:    [[R031:%.*]] = shufflevector <4 x double> [[R00]], <4 x double> [[TMP4]], <4 x i32> <i32 0, i32 poison, i32 4, i32 5>
+; AVX1-NEXT:    ret <4 x double> [[R031]]
 ;
 ; AVX2-LABEL: @test_v4f64_partial_swizzle(
 ; AVX2-NEXT:    [[A0:%.*]] = extractelement <4 x double> [[A:%.*]], i64 0
@@ -448,3 +448,5 @@ define <16 x i16> @test_v16i16(<16 x i16> %a, <16 x i16> %b) {
   %rv15 = insertelement <16 x i16> %rv14, i16 %r15, i32 15
   ret <16 x i16> %rv15
 }
+;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
+; AVX: {{.*}}
diff --git a/llvm/test/Transforms/SLPVectorizer/X86/hsub-inseltpoison.ll b/llvm/test/Transforms/SLPVectorizer/X86/hsub-inseltpoison.ll
index cb05e46b466f21..39400ba4ce1e83 100644
--- a/llvm/test/Transforms/SLPVectorizer/X86/hsub-inseltpoison.ll
+++ b/llvm/test/Transforms/SLPVectorizer/X86/hsub-inseltpoison.ll
@@ -1,10 +1,10 @@
 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
-; RUN: opt < %s -mtriple=x86_64-unknown -passes=slp-vectorizer,instcombine -S | FileCheck %s
-; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=slm -passes=slp-vectorizer,instcombine -S | FileCheck %s
-; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=corei7-avx -passes=slp-vectorizer,instcombine -S | FileCheck %s
-; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=core-avx2 -passes=slp-vectorizer,instcombine -S | FileCheck %s
-; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=knl -passes=slp-vectorizer,instcombine -S | FileCheck %s
-; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=skx -passes=slp-vectorizer,instcombine -S | FileCheck %s
+; RUN: opt < %s -mtriple=x86_64-unknown -passes=slp-vectorizer,instcombine -S | FileCheck %s --check-prefixes=CHECK,SSE
+; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=slm -passes=slp-vectorizer,instcombine -S | FileCheck %s --check-prefixes=CHECK,SLM
+; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=corei7-avx -passes=slp-vectorizer,instcombine -S | FileCheck %s --check-prefixes=CHECK,AVX,AVX1
+; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=core-avx2 -passes=slp-vectorizer,instcombine -S | FileCheck %s --check-prefixes=CHECK,AVX,AVX2
+; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=knl -passes=slp-vectorizer,instcombine -S | FileCheck %s --check-prefixes=CHECK,AVX,AVX512
+; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=skx -passes=slp-vectorizer,instcombine -S | FileCheck %s --check-prefixes=CHECK,AVX,AVX512
 
 ;
 ; 128-bit vectors
@@ -353,3 +353,10 @@ define <16 x i16> @test_v16i16(<16 x i16> %a, <16 x i16> %b) {
   %rv15 = insertelement <16 x i16> %rv14, i16 %r15, i32 15
   ret <16 x i16> %rv15
 }
+;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
+; AVX: {{.*}}
+; AVX1: {{.*}}
+; AVX2: {{.*}}
+; AVX512: {{.*}}
+; SLM: {{.*}}
+; SSE: {{.*}}
diff --git a/llvm/test/Transforms/SLPVectorizer/X86/hsub.ll b/llvm/test/Transforms/SLPVectorizer/X86/hsub.ll
index 7f6f24ce8fda12..6b63de83c56be2 100644
--- a/llvm/test/Transforms/SLPVectorizer/X86/hsub.ll
+++ b/llvm/test/Transforms/SLPVectorizer/X86/hsub.ll
@@ -1,10 +1,10 @@
 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
-; RUN: opt < %s -mtriple=x86_64-unknown -passes=slp-vectorizer,instcombine -S | FileCheck %s
-; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=slm -passes=slp-vectorizer,instcombine -S | FileCheck %s
-; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=corei7-avx -passes=slp-vectorizer,instcombine -S | FileCheck %s
-; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=core-avx2 -passes=slp-vectorizer,instcombine -S | FileCheck %s
-; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=knl -passes=slp-vectorizer,instcombine -S | FileCheck %s
-; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=skx -passes=slp-vectorizer,instcombine -S | FileCheck %s
+; RUN: opt < %s -mtriple=x86_64-unknown -passes=slp-vectorizer,instcombine -S | FileCheck %s --check-prefixes=CHECK,SSE
+; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=slm -passes=slp-vectorizer,instcombine -S | FileCheck %s --check-prefixes=CHECK,SLM
+; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=corei7-avx -passes=slp-vectorizer,instcombine -S | FileCheck %s --check-prefixes=CHECK,AVX,AVX1
+; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=core-avx2 -passes=slp-vectorizer,instcombine -S | FileCheck %s --check-prefixes=CHECK,AVX,AVX2
+; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=knl -passes=slp-vectorizer,instcombine -S | FileCheck %s --check-prefixes=CHECK,AVX,AVX512
+; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=skx -passes=slp-vectorizer,instcombine -S | FileCheck %s --check-prefixes=CHECK,AVX,AVX512
 
 ;
 ; 128-bit vectors
@@ -353,3 +353,10 @@ define <16 x i16> @test_v16i16(<16 x i16> %a, <16 x i16> %b) {
   %rv15 = insertelement <16 x i16> %rv14, i16 %r15, i32 15
   ret <16 x i16> %rv15
 }
+;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
+; AVX: {{.*}}
+; AVX1: {{.*}}
+; AVX2: {{.*}}
+; AVX512: {{.*}}
+; SLM: {{.*}}
+; SSE: {{.*}}