File: before-value-profile-lowering.ll

package info (click to toggle)
llvm-toolchain-20 1%3A20.1.8-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 2,111,696 kB
  • sloc: cpp: 7,438,781; ansic: 1,393,871; asm: 1,012,926; python: 241,771; f90: 86,635; objc: 75,411; lisp: 42,144; pascal: 17,286; sh: 8,596; ml: 5,082; perl: 4,730; makefile: 3,591; awk: 3,523; javascript: 2,251; xml: 892; fortran: 672
file content (23 lines) | stat: -rw-r--r-- 867 bytes parent folder | download | duplicates (15) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
 
; Test to ensure that when the only instrprof increment instruction is
; increment by step instruction and there is value profile instruction
; in front of all increment instructions in a function,
; the profile data variable is generated before value profile lowering

; RUN: opt < %s -passes=instrprof -S | FileCheck %s

target triple = "x86_64-unknown-linux-gnu"

declare void @llvm.instrprof.increment.step(ptr, i64, i32, i32, i64)

declare void @llvm.instrprof.value.profile(ptr, i64, i64, i32, i32)

; CHECK: @__profd_foo = private global
@__profn_foo = private constant [3 x i8] c"foo"

define i32 @foo(ptr ) {
  %2 = ptrtoint ptr %0 to i64
  call void @llvm.instrprof.value.profile(ptr @__profn_foo, i64 0, i64 %2, i32 0, i32 0)
  call void @llvm.instrprof.increment.step(ptr @__profn_foo, i64 0, i32 1, i32 0, i64 0)
  %3 = tail call i32 %0()
  ret i32 %3
}