llvm/test/tools/llvm-profgen/recursion-compression-noprobe.test

; Firstly test uncompression(--compress-recursion=0)
; RUN: llvm-profgen --format=text --perfscript=%S/Inputs/recursion-compression-noprobe.perfscript --binary=%S/Inputs/recursion-compression-noprobe.perfbin --output=%t --compress-recursion=0 --profile-summary-hot-count=0 --csspgo-preinliner=0 --gen-cs-nested-profile=0
; RUN: FileCheck %s --input-file %t -check-prefix=CHECK-UNCOMPRESS
; RUN: llvm-profgen --format=text --perfscript=%S/Inputs/recursion-compression-noprobe.perfscript --binary=%S/Inputs/recursion-compression-noprobe.perfbin --output=%t --profile-summary-hot-count=0 --csspgo-preinliner=0 --gen-cs-nested-profile=0
; RUN: FileCheck %s --input-file %t
; RUN: llvm-profgen --format=text --perfscript=%S/Inputs/recursion-compression-noprobe.perfscript --binary=%S/Inputs/recursion-compression-noprobe.perfbin --output=%t --compress-recursion=0 --profile-summary-hot-count=0 --csprof-max-context-depth=2 --csspgo-preinliner=0 --gen-cs-nested-profile=0
; RUN: FileCheck %s --input-file %t -check-prefix=CHECK-MAX-CTX-DEPTH

; CHECK-UNCOMPRESS:[main:1 @ foo:3 @ fa:2 @ fb]:48:0
; CHECK-UNCOMPRESS: 1: 11
; CHECK-UNCOMPRESS: 2: 1 fa:1
; CHECK-UNCOMPRESS: 65532: 11
; CHECK-UNCOMPRESS:[main:1 @ foo:3 @ fa]:24:0
; CHECK-UNCOMPRESS: 1: 1
; CHECK-UNCOMPRESS: 2: 13 fb:11
; CHECK-UNCOMPRESS: 65527: 1
; CHECK-UNCOMPRESS:[main:1 @ foo]:7:0
; CHECK-UNCOMPRESS: 2: 1
; CHECK-UNCOMPRESS: 3: 2 fa:1
; CHECK-UNCOMPRESS:[main:1 @ foo:3 @ fa:2 @ fb:2 @ fa]:7:0
; CHECK-UNCOMPRESS: 1: 1
; CHECK-UNCOMPRESS: 2: 2 fb:1
; CHECK-UNCOMPRESS:[main:1 @ foo:3 @ fa:2 @ fb:2 @ fa:2 @ fb]:2:0
; CHECK-UNCOMPRESS: 2: 1 fa:1
; CHECK-UNCOMPRESS: 65532: 1
; CHECK-UNCOMPRESS:[main:1 @ foo:3 @ fa:2 @ fb:2 @ fa:2 @ fb:2 @ fa]:2:0
; CHECK-UNCOMPRESS: 4: 1

; CHECK-MAX-CTX-DEPTH: [foo:3 @ fa:2 @ fb]:47:0
; CHECK-MAX-CTX-DEPTH:  1: 11
; CHECK-MAX-CTX-DEPTH:  65532: 11
; CHECK-MAX-CTX-DEPTH: [main:1 @ foo:3 @ fa]:13:0
; CHECK-MAX-CTX-DEPTH:  1: 1
; CHECK-MAX-CTX-DEPTH:  2: 2
; CHECK-MAX-CTX-DEPTH:  65527: 1
; CHECK-MAX-CTX-DEPTH: [fa:2 @ fb:2 @ fa]:8:0
; CHECK-MAX-CTX-DEPTH:  1: 1
; CHECK-MAX-CTX-DEPTH:  2: 1
; CHECK-MAX-CTX-DEPTH:  4: 1
; CHECK-MAX-CTX-DEPTH: [main:1 @ foo]:7:0
; CHECK-MAX-CTX-DEPTH:  2: 1
; CHECK-MAX-CTX-DEPTH:  3: 2 fa:1
; CHECK-MAX-CTX-DEPTH: [fb:2 @ fa:2 @ fb]:1:0
; CHECK-MAX-CTX-DEPTH:  65532: 1


;CHECK: [main:1 @ foo:3 @ fa:2 @ fb]:48:0
;CHECK:  1: 11
;CHECK:  2: 1 fa:1
;CHECK:  65532: 11
;CHECK: [main:1 @ foo:3 @ fa]:24:0
;CHECK:  1: 1
;CHECK:  2: 13 fb:11
;CHECK:  65527: 1
;CHECK: [main:1 @ foo:3 @ fa:2 @ fb:2 @ fa]:9:0
;CHECK:  1: 1
;CHECK:  2: 2 fb:1
;CHECK:  4: 1
;CHECK: [main:1 @ foo]:7:0
;CHECK:  2: 1
;CHECK:  3: 2 fa:1
;CHECK: [main:1 @ foo:3 @ fa:2 @ fb:2 @ fa:2 @ fb]:1:0
;CHECK:  65532: 1

; original code:
; clang -O3 -g test.c -o a.out
#include <stdio.h>

int fb(int n) {
  if(n > 10) return fb(n / 2);
  return fa(n - 1);
}

int fa(int n) {
  if(n < 2) return n;
  if(n % 2) return fb(n - 1);
  return fa(n - 1);
}

void foo() {
  int s, i = 0;
  while (i++ < 10000)
    s += fa(i);
  printf("sum is %d\n", s);
}

int main() {
  foo();
  return 0;
}