File: pgo-sample-preparation.c

package info (click to toggle)
swiftlang 6.1.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 2,791,604 kB
  • sloc: cpp: 9,901,740; ansic: 2,201,431; asm: 1,091,827; python: 308,252; objc: 82,166; f90: 80,126; lisp: 38,358; pascal: 25,559; sh: 20,429; ml: 5,058; perl: 4,745; makefile: 4,484; awk: 3,535; javascript: 3,018; xml: 918; fortran: 664; cs: 573; ruby: 396
file content (16 lines) | stat: -rw-r--r-- 517 bytes parent folder | download | duplicates (34) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
 
// Test if PGO sample use preparation passes are executed correctly.
//
// Ensure that instcombine is executed after simplifycfg and sroa so that
// "a < 255" will not be converted to a * 256 < 255 * 256.
// RUN: %clang_cc1 -O2 -fprofile-sample-use=%S/Inputs/pgo-sample.prof %s -emit-llvm -o - 2>&1 | FileCheck %s

void bar(int);
void foo(int x, int y, int z) {
  int m;
  for (m = 0; m < x ; m++) {
    int a = (((y >> 8) & 0xff) * z) / 256;
    bar(a < 255 ? a : 255);
  }
}

// CHECK-NOT: icmp slt i32 %mul, 65280