diff --git a/llvm/test/Assembler/invalid-generic-debug-node-tag-overflow.ll b/llvm/test/Assembler/invalid-generic-debug-node-tag-overflow.ll
index 1722caa0a732..b5189469f079 100644
--- a/llvm/test/Assembler/invalid-generic-debug-node-tag-overflow.ll
+++ b/llvm/test/Assembler/invalid-generic-debug-node-tag-overflow.ll
@@ -1,6 +1,6 @@
 ; RUN: not llvm-as < %s -disable-output 2>&1 | FileCheck %s
 
-; CHECK-NOT: error
+; CHECK-NOT: error:
 !0 = !GenericDebugNode(tag: 65535)
 
 ; CHECK: <stdin>:[[@LINE+1]]:29: error: value for 'tag' too large, limit is 65535
diff --git a/llvm/test/Assembler/invalid-mdcompileunit-language-overflow.ll b/llvm/test/Assembler/invalid-mdcompileunit-language-overflow.ll
index 14dab17868fc..1849867edaea 100644
--- a/llvm/test/Assembler/invalid-mdcompileunit-language-overflow.ll
+++ b/llvm/test/Assembler/invalid-mdcompileunit-language-overflow.ll
@@ -1,6 +1,6 @@
 ; RUN: not llvm-as < %s -disable-output 2>&1 | FileCheck %s
 
-; CHECK-NOT: error
+; CHECK-NOT: error:
 !0 = !MDCompileUnit(language: 65535,
                     file: !MDFile(filename: "a", directory: "b"))
 
diff --git a/llvm/test/Assembler/invalid-mdexpression-large.ll b/llvm/test/Assembler/invalid-mdexpression-large.ll
index 43b8ce0c9efc..fb304137ed70 100644
--- a/llvm/test/Assembler/invalid-mdexpression-large.ll
+++ b/llvm/test/Assembler/invalid-mdexpression-large.ll
@@ -1,6 +1,6 @@
 ; RUN: not llvm-as < %s -disable-output 2>&1 | FileCheck %s
 
-; CHECK-NOT: error
+; CHECK-NOT: error:
 !0 = !MDExpression(18446744073709551615)
 
 ; CHECK: <stdin>:[[@LINE+1]]:20: error: element too large, limit is 18446744073709551615
diff --git a/llvm/test/Assembler/invalid-mdlocation-overflow-column.ll b/llvm/test/Assembler/invalid-mdlocation-overflow-column.ll
index 92ea661ed346..1c06697d01e8 100644
--- a/llvm/test/Assembler/invalid-mdlocation-overflow-column.ll
+++ b/llvm/test/Assembler/invalid-mdlocation-overflow-column.ll
@@ -2,7 +2,7 @@
 
 !0 = !{}
 
-; CHECK-NOT: error
+; CHECK-NOT: error:
 !1 = !MDLocation(column: 65535, scope: !0)
 
 ; CHECK: <stdin>:[[@LINE+1]]:26: error: value for 'column' too large, limit is 65535
diff --git a/llvm/test/Assembler/invalid-mdlocation-overflow-line.ll b/llvm/test/Assembler/invalid-mdlocation-overflow-line.ll
index 535b4c9a5c93..571a555daefc 100644
--- a/llvm/test/Assembler/invalid-mdlocation-overflow-line.ll
+++ b/llvm/test/Assembler/invalid-mdlocation-overflow-line.ll
@@ -2,7 +2,7 @@
 
 !0 = !{}
 
-; CHECK-NOT: error
+; CHECK-NOT: error:
 !1 = !MDLocation(line: 4294967295, scope: !0)
 
 ; CHECK: <stdin>:[[@LINE+1]]:24: error: value for 'line' too large, limit is 4294967295
diff --git a/llvm/test/Assembler/invalid-mdsubrange-count-large.ll b/llvm/test/Assembler/invalid-mdsubrange-count-large.ll
index 0d150aa98340..733c4afa34af 100644
--- a/llvm/test/Assembler/invalid-mdsubrange-count-large.ll
+++ b/llvm/test/Assembler/invalid-mdsubrange-count-large.ll
@@ -1,6 +1,6 @@
 ; RUN: not llvm-as < %s -disable-output 2>&1 | FileCheck %s
 
-; CHECK-NOT: error
+; CHECK-NOT: error:
 !0 = !MDSubrange(count: 9223372036854775807)
 
 ; CHECK: <stdin>:[[@LINE+1]]:25: error: value for 'count' too large, limit is 9223372036854775807
diff --git a/llvm/test/Assembler/invalid-mdsubrange-count-negative.ll b/llvm/test/Assembler/invalid-mdsubrange-count-negative.ll
index 92c0b4e7ca48..9bfe784ab5df 100644
--- a/llvm/test/Assembler/invalid-mdsubrange-count-negative.ll
+++ b/llvm/test/Assembler/invalid-mdsubrange-count-negative.ll
@@ -1,6 +1,6 @@
 ; RUN: not llvm-as < %s -disable-output 2>&1 | FileCheck %s
 
-; CHECK-NOT: error
+; CHECK-NOT: error:
 !0 = !MDSubrange(count: -1)
 
 ; CHECK: <stdin>:[[@LINE+1]]:25: error: value for 'count' too small, limit is -1