[PATCH] D85232: [HotColdSplit] Add test case for unlikely attribute in outlined function

[Aditya Kumar via Phabricator via llvm-commits]

hiraditya created this revision.
hiraditya added reviewers: rjf, vsk, rcorcs.
Herald added a project: LLVM.
Herald added a subscriber: llvm-commits.
hiraditya requested review of this revision.

Recommitting D69384 <https://reviews.llvm.org/D69384> to run only for x86 targets.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D85232

Files:
  llvm/test/Transforms/HotColdSplit/coldentrycount.ll


Index: llvm/test/Transforms/HotColdSplit/coldentrycount.ll
===================================================================
--- llvm/test/Transforms/HotColdSplit/coldentrycount.ll
+++ llvm/test/Transforms/HotColdSplit/coldentrycount.ll
@@ -1,13 +1,15 @@
+; REQUIRES: x86-registered-target
+; RUN: opt -hotcoldsplit -hotcoldsplit-threshold=0 -codegenprepare -S < %s | FileCheck %s
+
 ; Test to ensure that split cold function gets 0 entry count profile
 ; metadata when compiling with pgo.
 
-; RUN: opt -hotcoldsplit -hotcoldsplit-threshold=0 -S < %s | FileCheck %s
-
 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
 target triple = "x86_64-apple-macosx10.14.0"
 
-; CHECK-LABEL: @fun
+; CHECK: define {{.*}} @fun{{.*}} ![[HOTPROF:[0-9]+]] {{.*}}section_prefix ![[LIKELY:[0-9]+]]
 ; CHECK: call void @fun.cold.1
+
 define void @fun() !prof !14 {
 entry:
   br i1 undef, label %if.then, label %if.else
@@ -22,8 +24,12 @@
 
 declare void @sink() cold
 
-; CHECK: define {{.*}} @fun.cold.1{{.*}} ![[PROF:[0-9]+]]
+; CHECK: define {{.*}} @fun.cold.1{{.*}} ![[PROF:[0-9]+]] {{.*}}section_prefix ![[UNLIKELY:[0-9]+]]
+
+; CHECK: ![[HOTPROF]] = !{!"function_entry_count", i64 100}
+; CHECK: ![[LIKELY]] = !{!"function_section_prefix", !".hot"}
 ; CHECK: ![[PROF]] = !{!"function_entry_count", i64 0}
+; CHECK: ![[UNLIKELY]] = !{!"function_section_prefix", !".unlikely"}
 
 !llvm.module.flags = !{!0}
 !0 = !{i32 1, !"ProfileSummary", !1}
@@ -41,3 +47,6 @@
 !12 = !{i32 999000, i64 100, i32 1}
 !13 = !{i32 999999, i64 1, i32 2}
 !14 = !{!"function_entry_count", i64 100}
+!15 = !{!"function_section_prefix", !".hot"}
+!16 = !{!"function_entry_count", i64 0}
+!17 = !{!"function_section_prefix", !".unlikely"}


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