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

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Differential Revision: https://reviews.llvm.org/D85232
This commit is contained in:
AK 2020-08-04 11:16:56 -07:00
parent 4d951d1075
commit 5cfa11143f
1 changed files with 13 additions and 4 deletions
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17
test/Transforms/HotColdSplit/coldentrycount.ll
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@ -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 @@ if.else:
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 @@ declare void @sink() cold
!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"}