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authorDehao Chen <dehao@google.com>2016-11-22 22:50:01 +0000
committerDehao Chen <dehao@google.com>2016-11-22 22:50:01 +0000
commit554f500ae2b978473f3a200afb6e32c378a3a8bf (patch)
tree7de09bb3d6d15619b2aebd51ee7b7df384298523 /llvm/test/Transforms/SampleProfile/nodebug.ll
parente7ffae9dea1c934d3f9be2b74a629f215d674fe1 (diff)
downloadbcm5719-llvm-554f500ae2b978473f3a200afb6e32c378a3a8bf.tar.gz
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Before sample pgo annotation, do not inline a function that has no debug info. (NFC)
If there is no debug info in the callee, inlining it will not help annotator. This avoids infinite loop as reported in PR/31119. llvm-svn: 287710
Diffstat (limited to 'llvm/test/Transforms/SampleProfile/nodebug.ll')
-rw-r--r--llvm/test/Transforms/SampleProfile/nodebug.ll20
1 files changed, 20 insertions, 0 deletions
diff --git a/llvm/test/Transforms/SampleProfile/nodebug.ll b/llvm/test/Transforms/SampleProfile/nodebug.ll
new file mode 100644
index 00000000000..d1c53c1a6f2
--- /dev/null
+++ b/llvm/test/Transforms/SampleProfile/nodebug.ll
@@ -0,0 +1,20 @@
+; RUN: opt < %s -sample-profile -sample-profile-file=%S/Inputs/nodebug.prof
+
+define void @foo() !dbg !3 {
+ call void @bar(), !dbg !4
+ ret void
+}
+
+define void @bar() {
+ call void @bar()
+ ret void
+}
+
+!llvm.dbg.cu = !{!0}
+!llvm.module.flags = !{!2}
+
+!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1)
+!1 = !DIFile(filename: "t", directory: "/tmp/")
+!2 = !{i32 2, !"Debug Info Version", i32 3}
+!3 = distinct !DISubprogram(name: "a", scope: !1, file: !1, line: 10, unit: !0)
+!4 = !DILocation(line: 10, scope: !3)
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