2 files changed, 41 insertions, 0 deletions
diff --git a/llvm/test/Transforms/SampleProfile/Inputs/flattened.prof b/llvm/test/Transforms/SampleProfile/Inputs/flattened.prof
new file mode 100644
index 00000000000..962bc6e58e5
--- /dev/null
+++ b/llvm/test/Transforms/SampleProfile/Inputs/flattened.prof
@@ -0,0 +1,2 @@
+foo:100:100
+ 1: 100
diff --git a/llvm/test/Transforms/SampleProfile/flattened.ll b/llvm/test/Transforms/SampleProfile/flattened.ll
new file mode 100644
index 00000000000..7a1e53b966c
--- /dev/null
+++ b/llvm/test/Transforms/SampleProfile/flattened.ll
@@ -0,0 +1,39 @@
+; Check flattened profile will not be read in thinlto postlink.
+; RUN: opt < %s -O2 -flattened-profile-used -pgo-kind=pgo-sample-use-pipeline -profile-file=%S/Inputs/flattened.prof -enable-chr=false -perform-thinlto=true -S | FileCheck %s
+; RUN: opt < %s -passes='thinlto<O2>' -pgo-kind=pgo-sample-use-pipeline -profile-file=%S/Inputs/flattened.prof -flattened-profile-used -S | FileCheck %s
+;
+; Check flattened profile will be read in thinlto prelink.
+; RUN: opt < %s -O2 -flattened-profile-used -pgo-kind=pgo-sample-use-pipeline -profile-file=%S/Inputs/flattened.prof -enable-chr=false -prepare-for-thinlto=true -S | FileCheck %s --check-prefix=PRELINK
+; RUN: opt < %s -passes='thinlto-pre-link<O2>' -pgo-kind=pgo-sample-use-pipeline -profile-file=%S/Inputs/flattened.prof -flattened-profile-used -S | FileCheck %s --check-prefix=PRELINK
+;
+; Check flattened profile will be read in non-thinlto mode.
+; RUN: opt < %s -O2 -flattened-profile-used -pgo-kind=pgo-sample-use-pipeline -profile-file=%S/Inputs/flattened.prof -enable-chr=false -S | FileCheck %s --check-prefix=NOTHINLTO
+; RUN: opt < %s -passes='default<O2>' -pgo-kind=pgo-sample-use-pipeline -profile-file=%S/Inputs/flattened.prof -flattened-profile-used -S | FileCheck %s --check-prefix=NOTHINLTO
+;
+; CHECK-NOT: !{!"ProfileFormat", !"SampleProfile"}
+; PRELINK:   !{!"ProfileFormat", !"SampleProfile"}
+; NOTHINLTO: !{!"ProfileFormat", !"SampleProfile"}
+
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
+; Function Attrs: norecurse nounwind readnone uwtable
+define dso_local i32 @foo() local_unnamed_addr !dbg !7 {
+entry:
+  ret i32 -1, !dbg !9
+}
+
+!llvm.dbg.cu = !{!0}
+!llvm.module.flags = !{!3, !4, !5}
+!llvm.ident = !{!6}
+
+!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 8.0.0 (trunk 345241)", isOptimized: true, runtimeVersion: 0, emissionKind: LineTablesOnly, enums: !2, nameTableKind: None)
+!1 = !DIFile(filename: "a.c", directory: "")
+!2 = !{}
+!3 = !{i32 2, !"Dwarf Version", i32 4}
+!4 = !{i32 2, !"Debug Info Version", i32 3}
+!5 = !{i32 1, !"wchar_size", i32 4}
+!6 = !{!"clang version 8.0.0 (trunk 345241)"}
+!7 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 1, type: !8, isLocal: false, isDefinition: true, scopeLine: 1, isOptimized: true, unit: !0, retainedNodes: !2)
+!8 = !DISubroutineType(types: !2)
+!9 = !DILocation(line: 2, column: 3, scope: !7)