diff --git a/llvm/test/Transforms/InferFunctionAttrs/annotate.ll b/llvm/test/Transforms/InferFunctionAttrs/annotate.ll
--- a/llvm/test/Transforms/InferFunctionAttrs/annotate.ll
+++ b/llvm/test/Transforms/InferFunctionAttrs/annotate.ll
@@ -1,8 +1,8 @@
-; RUN: opt < %s -mtriple=x86_64-- -inferattrs -S | FileCheck -check-prefix=CHECK-UNKNOWN %s
-; RUN: opt < %s -mtriple=x86_64-- -passes=inferattrs -S | FileCheck -check-prefix=CHECK-UNKNOWN %s
-; RUN: opt < %s -mtriple=x86_64-apple-macosx10.8.0 -inferattrs -S | FileCheck -check-prefix=CHECK -check-prefix=CHECK-DARWIN %s
-; RUN: opt < %s -mtriple=x86_64-unknown-linux-gnu -inferattrs -S | FileCheck -check-prefix=CHECK -check-prefix=CHECK-LINUX %s
-; RUN: opt < %s -mtriple=nvptx -inferattrs -S | FileCheck -check-prefix=CHECK-NVPTX %s
+; RUN: opt < %s -mtriple=x86_64-- -inferattrs -S | FileCheck --check-prefixes=CHECK,CHECK-UNKNOWN %s
+; RUN: opt < %s -mtriple=x86_64-- -passes=inferattrs -S | FileCheck --check-prefixes=CHECK,CHECK-UNKNOWN %s
+; RUN: opt < %s -mtriple=x86_64-apple-macosx10.8.0 -inferattrs -S | FileCheck --check-prefixes=CHECK,CHECK-KNOWN,CHECK-DARWIN %s
+; RUN: opt < %s -mtriple=x86_64-unknown-linux-gnu -inferattrs -S | FileCheck --check-prefixes=CHECK,CHECK-KNOWN,CHECK-LINUX %s
+; RUN: opt < %s -mtriple=nvptx -inferattrs -S | FileCheck --check-prefix=CHECK-NVPTX %s
 
 declare i32 @__nvvm_reflect(i8*)
 ; CHECK-NVPTX: declare noundef i32 @__nvvm_reflect(i8* noundef) [[NOFREE_NOUNWIND_READNONE:#[0-9]+]]
@@ -241,7 +241,7 @@
 ; CHECK-LINUX: declare i32 @bcmp(i8* nocapture, i8* nocapture, i64) [[ARGMEMONLY_NOFREE_NOUNWIND_READONLY:#[0-9]+]]
 ; CHECK-DARWIN-NOT: declare i32 @bcmp(i8* nocapture, i8* nocapture, i64) [[NOFREE_NOUNWIND_READONLY]]
 ; CHECK-UNKNOWN-NOT: declare i32 @bcmp(i8* nocapture, i8* nocapture, i64) [[NOFREE_NOUNWIND_READONLY]]
-; CHECK-NVPTX-NOT: declare i32 @bcmp(i8* nocapture, i8* nocapture, i64) [[NOFREE_NOUNWIND_READONLY]]
+; CHECK-NVPTX-NOT: declare i32 @bcmp(i8* nocapture, i8* nocapture, i64) #{{[0-9]+}}
 declare i32 @bcmp(i8*, i8*, i64)
 
 ; CHECK: declare void @bcopy(i8* nocapture readonly, i8* nocapture writeonly, i64)  [[ARGMEMONLY_NOFREE_NOUNWIND:#[0-9]+]]
@@ -367,10 +367,12 @@
 ; CHECK: declare i32 @ffs(i32) [[NOFREE_NOUNWIND_WILLRETURN]]
 declare i32 @ffs(i32)
 
-; CHECK: declare i32 @ffsl(i64) [[NOFREE_NOUNWIND_WILLRETURN]]
+; CHECK-KNOWN: declare i32 @ffsl(i64) [[NOFREE_NOUNWIND_WILLRETURN]]
+; CHECK-UNKNOWN: declare i32 @ffsl(i64)
 declare i32 @ffsl(i64)
 
-; CHECK: declare i32 @ffsll(i64) [[NOFREE_NOUNWIND_WILLRETURN]]
+; CHECK-KNOWN: declare i32 @ffsll(i64) [[NOFREE_NOUNWIND_WILLRETURN]]
+; CHECK-UNKNOWN: declare i32 @ffsll(i64)
 declare i32 @ffsll(i64)
 
 ; CHECK: declare noundef i32 @fgetc(%opaque* nocapture noundef) [[NOFREE_NOUNWIND]]
@@ -514,7 +516,8 @@
 ; CHECK: declare noundef i32 @getchar() [[NOFREE_NOUNWIND]]
 declare i32 @getchar()
 
-; CHECK: declare noundef i32 @getchar_unlocked() [[NOFREE_NOUNWIND]]
+; CHECK-KNOWN: declare noundef i32 @getchar_unlocked() [[NOFREE_NOUNWIND]]
+; CHECK-UNKNOWN: declare i32 @getchar_unlocked()
 declare i32 @getchar_unlocked()
 
 ; CHECK: declare noundef i8* @getenv(i8* nocapture noundef) [[NOFREE_NOUNWIND_READONLY]]
@@ -709,7 +712,8 @@
 ; CHECK: declare noundef i32 @putchar(i32 noundef) [[NOFREE_NOUNWIND]]
 declare i32 @putchar(i32)
 
-; CHECK: declare noundef i32 @putchar_unlocked(i32 noundef) [[NOFREE_NOUNWIND]]
+; CHECK-KNOWN: declare noundef i32 @putchar_unlocked(i32 noundef) [[NOFREE_NOUNWIND]]
+; CHECK-UNKNOWN: declare i32 @putchar_unlocked(i32)
 declare i32 @putchar_unlocked(i32)
 
 ; CHECK: declare noundef i32 @puts(i8* nocapture noundef readonly) [[NOFREE_NOUNWIND]]