File: instr-gen-cold-function.ll

package info (click to toggle)
llvm-toolchain-20 1%3A20.1.8-1~exp1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 2,111,388 kB
  • sloc: cpp: 7,438,767; ansic: 1,393,871; asm: 1,012,926; python: 241,728; f90: 86,635; objc: 75,411; lisp: 42,144; pascal: 17,286; sh: 10,027; ml: 5,082; perl: 4,730; awk: 3,523; makefile: 3,349; javascript: 2,251; xml: 892; fortran: 672
file content (35 lines) | stat: -rw-r--r-- 1,389 bytes parent folder | download | duplicates (6)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
; RUN: opt < %s  --passes=pgo-instr-gen -pgo-instrument-cold-function-only -pgo-function-entry-coverage -S  | FileCheck --check-prefixes=COLD %s
; RUN: opt < %s  --passes=pgo-instr-gen -pgo-instrument-cold-function-only -pgo-function-entry-coverage -pgo-cold-instrument-entry-threshold=1 -S  | FileCheck --check-prefixes=ENTRY-COUNT %s
; RUN: opt < %s  --passes=pgo-instr-gen -pgo-instrument-cold-function-only -pgo-function-entry-coverage -pgo-treat-unknown-as-cold -S  | FileCheck --check-prefixes=UNKNOWN-FUNC %s

; COLD: call void @llvm.instrprof.cover(ptr @__profn_foo, i64  [[#]], i32 1, i32 0)
; COLD-NOT: __profn_main
; COLD-NOT: __profn_bar

; ENTRY-COUNT: call void @llvm.instrprof.cover(ptr @__profn_foo, i64  [[#]], i32 1, i32 0)
; ENTRY-COUNT: call void @llvm.instrprof.cover(ptr @__profn_main, i64 [[#]], i32 1, i32 0)

; UNKNOWN-FUNC: call void @llvm.instrprof.cover(ptr @__profn_bar, i64  [[#]], i32 1, i32 0)
; UNKNOWN-FUNC: call void @llvm.instrprof.cover(ptr @__profn_foo, i64  [[#]], i32 1, i32 0)


target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

define void @bar() {
entry:
  ret void
}

define void @foo() !prof !0 {
entry:
  ret void
}

define i32 @main() !prof !1 {
entry:
  ret i32 0
}

!0 = !{!"function_entry_count", i64 0}
!1 = !{!"function_entry_count", i64 1}