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llvm-project/llvm/test/Instrumentation/cgprofile.ll

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Recommit r335794 "Add support for generating a call graph profile from Branch Frequency Info." with fix for removed functions. llvm-svn: 337140
2018-07-16 08:28:24 +08:00
; RUN: opt < %s -passes cg-profile -S | FileCheck %s
[LPM] Port CGProfilePass from NPM to LPM Reviewers: hans, chandlerc!, asbirlea, nikic Reviewed By: hans, nikic Subscribers: steven_wu, dexonsmith, nikic, echristo, void, zhizhouy, cfe-commits, aeubanks, MaskRay, jvesely, nhaehnle, hiraditya, kerbowa, llvm-commits Tags: #llvm, #clang Differential Revision: https://reviews.llvm.org/D83013
2020-07-09 03:30:28 +08:00
; RUN: opt < %s -cg-profile -S | FileCheck %s
Recommit r335794 "Add support for generating a call graph profile from Branch Frequency Info." with fix for removed functions. llvm-svn: 337140
2018-07-16 08:28:24 +08:00
declare void @b()
define void @a() !prof !1 {
call void @b()
ret void
}
@foo = common global i32 ()* null, align 8
declare i32 @func1()
declare i32 @func2()
declare i32 @func3()
declare i32 @func4()
[CGProfile] don't emit cgprofile entry if called function is dllimport Differential Revision: https://reviews.llvm.org/D88127
2020-09-23 09:10:26 +08:00
declare dllimport i32 @func5()
Recommit r335794 "Add support for generating a call graph profile from Branch Frequency Info." with fix for removed functions. llvm-svn: 337140
2018-07-16 08:28:24 +08:00
define void @freq(i1 %cond) !prof !1 {
%tmp = load i32 ()*, i32 ()** @foo, align 8
call i32 %tmp(), !prof !3
br i1 %cond, label %A, label %B, !prof !2
A:
call void @a();
ret void
B:
call void @b();
ret void
}
!1 = !{!"function_entry_count", i64 32}
!2 = !{!"branch_weights", i32 5, i32 10}
[CGProfile] don't emit cgprofile entry if called function is dllimport Differential Revision: https://reviews.llvm.org/D88127
2020-09-23 09:10:26 +08:00
!3 = !{!"VP", i32 0, i64 1600, i64 7651369219802541373, i64 1030, i64 -4377547752858689819, i64 410, i64 -6929281286627296573, i64 150, i64 -2545542355363006406, i64 10, i64 3667884930908592509, i64 0}
Recommit r335794 "Add support for generating a call graph profile from Branch Frequency Info." with fix for removed functions. llvm-svn: 337140
2018-07-16 08:28:24 +08:00
; CHECK: !llvm.module.flags = !{![[cgprof:[0-9]+]]}
; CHECK: ![[cgprof]] = !{i32 5, !"CG Profile", ![[prof:[0-9]+]]}
; CHECK: ![[prof]] = !{![[e0:[0-9]+]], ![[e1:[0-9]+]], ![[e2:[0-9]+]], ![[e3:[0-9]+]], ![[e4:[0-9]+]], ![[e5:[0-9]+]], ![[e6:[0-9]+]]}
; CHECK: ![[e0]] = !{void ()* @a, void ()* @b, i64 32}
; CHECK: ![[e1]] = !{void (i1)* @freq, i32 ()* @func4, i64 1030}
; CHECK: ![[e2]] = !{void (i1)* @freq, i32 ()* @func2, i64 410}
; CHECK: ![[e3]] = !{void (i1)* @freq, i32 ()* @func3, i64 150}
; CHECK: ![[e4]] = !{void (i1)* @freq, i32 ()* @func1, i64 10}
; CHECK: ![[e5]] = !{void (i1)* @freq, void ()* @a, i64 11}
[BFI] Use rounding while computing profile counts. Summary: Profile count of a block is computed by multiplying its block frequency by entry count and dividing the result by entry block frequency. Do rounded division in the last step and update test cases appropriately. Reviewers: davidxl Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D50822 llvm-svn: 339835
2018-08-16 08:26:59 +08:00
; CHECK: ![[e6]] = !{void (i1)* @freq, void ()* @b, i64 21}
[CGProfile] don't emit cgprofile entry if called function is dllimport Differential Revision: https://reviews.llvm.org/D88127
2020-09-23 09:10:26 +08:00
; CHECK-NOT: !{void (i1)* @freq, void ()* @func5, i64 0}