RPCS3/llvm
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm.git synced 2026-07-16 11:44:33 -04:00
Code Issues Packages Projects Releases 10 Wiki Activity

Add function importing info from samplepgo profile to the module summary.

Browse Source 
Summary: For SamplePGO, the profile may contain cross-module inline stacks. As we need to make sure the profile annotation happens when all the hot inline stacks are expanded, we need to pass this info to the module importer so that it can import proper functions if necessary. This patch implemented this feature by emitting cross-module targets as part of function entry metadata. In the module-summary phase, the metadata is used to build call edges that points to functions need to be imported.

Reviewers: mehdi_amini, tejohnson

Reviewed By: tejohnson

Subscribers: davidxl, llvm-commits

Differential Revision: https://reviews.llvm.org/D30053

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@296498 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dehao Chen
2017-02-28 18:09:44 +00:00
parent f563b7840e
commit e26c421c66
14 changed files with 139 additions and 29 deletions
Download Patch File Download Diff File Expand all files Collapse all files
test/Bitcode/thinlto-function-summary-callgraph-profile-summary.ll
+3 -2
View File
@@ -10,7 +10,7 @@
; CHECK-NEXT: <VERSION
; See if the call to func is registered, using the expected callsite count
; and profile count, with value id matching the subsequent value symbol table.
; CHECK-NEXT: <PERMODULE_PROFILE {{.*}} op4=[[HOT1:.*]] op5=3 op6=[[COLD:.*]] op7=1 op8=[[HOT2:.*]] op9=3 op10=[[NONE1:.*]] op11=2 op12=[[HOT3:.*]] op13=3 op14=[[NONE2:.*]] op15=2 op16=[[NONE3:.*]] op17=2/>
; CHECK-NEXT: <PERMODULE_PROFILE {{.*}} op4=[[HOT1:.*]] op5=3 op6=[[COLD:.*]] op7=1 op8=[[HOT2:.*]] op9=3 op10=[[NONE1:.*]] op11=2 op12=[[HOT3:.*]] op13=3 op14=[[NONE2:.*]] op15=2 op16=[[NONE3:.*]] op17=2 op18=[[LEGACY:.*]] op19=3/>
; CHECK-NEXT: </GLOBALVAL_SUMMARY_BLOCK>
; CHECK-LABEL: <VALUE_SYMTAB
; CHECK-NEXT: <FNENTRY {{.*}} record string = 'hot_function
@@ -21,6 +21,7 @@
; CHECK-DAG: <ENTRY abbrevid=6 op0=[[HOT1]] {{.*}} record string = 'hot1'
; CHECK-DAG: <ENTRY abbrevid=6 op0=[[HOT2]] {{.*}} record string = 'hot2'
; CHECK-DAG: <ENTRY abbrevid=6 op0=[[HOT3]] {{.*}} record string = 'hot3'
; CHECK-DAG: <COMBINED_ENTRY abbrevid=11 op0=[[LEGACY]] op1=123/>
; CHECK-LABEL: </VALUE_SYMTAB>
; COMBINED: <GLOBALVAL_SUMMARY_BLOCK
@@ -80,7 +81,7 @@ declare void @none3() #1
!llvm.module.flags = !{!1}
!20 = !{!"function_entry_count", i64 110}
!20 = !{!"function_entry_count", i64 110, i64 123}
!1 = !{i32 1, !"ProfileSummary", !2}
!2 = !{!3, !4, !5, !6, !7, !8, !9, !10}