// Test to check if we handle pic code properly.

// RUN: %clangxx_xray -fxray-instrument -std=c++11 -fpic %s -o %t
// RUN: XRAY_OPTIONS="patch_premain=true verbosity=1 xray_logfile_base=pic-test-logging-" %run %t 2>&1 | FileCheck %s
// After all that, clean up the output xray log.
//
// RUN: rm pic-test-logging-*

#include <cstdio>

[[clang::xray_always_instrument]]
unsigned short foo (unsigned b);

[[clang::xray_always_instrument]]
unsigned short bar (unsigned short a)
{
  printf("bar() is always instrumented!\n");
  return foo(a);
}

unsigned short foo (unsigned b)
{
  printf("foo() is always instrumented!\n");
  return b + b + 5;
}

int main ()
{
  // CHECK: XRay: Log file in 'pic-test-logging-{{.*}}'
  bar(10);
  // CHECK: bar() is always instrumented!
  // CHECK-NEXT: foo() is always instrumented!
}

// Test to check if we handle pic code properly.

// RUN: %clangxx_xray -fxray-instrument -std=c++11 -ffunction-sections \
// RUN:     -fdata-sections -fpic -fpie -Wl,--gc-sections %s -o %t
// RUN: XRAY_OPTIONS="patch_premain=true verbosity=1 xray_logfile_base=pic-test-logging-" %run %t 2>&1 | FileCheck %s
// After all that, clean up the output xray log.
//
// RUN: rm pic-test-logging-*

#include <cstdio>

[[clang::xray_always_instrument]]
unsigned short foo (unsigned b);

[[clang::xray_always_instrument]]
unsigned short bar (unsigned short a)
{
  printf("bar() is always instrumented!\n");
  return foo(a);
}

unsigned short foo (unsigned b)
{
  printf("foo() is always instrumented!\n");
  return b + b + 5;
}

int main ()
{
  // CHECK: XRay: Log file in 'pic-test-logging-{{.*}}'
  bar(10);
  // CHECK: bar() is always instrumented!
  // CHECK-NEXT: foo() is always instrumented!
}

Expand the PIC test case for XRay
[XRay][compiler-rt][NFC] Expand the PIC test case for XRay

Summary:
Here we add a build with -ffunction-sections -fdata-sections and
-Wl,--gc-sections to ensure that we're still able to generate XRay
traces.

This is just adding a test, no functional changes.

Differential Revision: https://reviews.llvm.org/D36863

git-svn-id: c199f293c43da69278bea8e88f92242bf3aa95f7@311145 91177308-0d34-0410-b5e6-96231b3b80d8
