File: inline-line-gap.cpp

package info (click to toggle)
llvm-toolchain-18 1%3A18.1.8-18
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,908,340 kB
  • sloc: cpp: 6,667,937; ansic: 1,440,452; asm: 883,619; python: 230,549; objc: 76,880; f90: 74,238; lisp: 35,989; pascal: 16,571; sh: 10,229; perl: 7,459; ml: 5,047; awk: 3,523; makefile: 2,987; javascript: 2,149; xml: 892; fortran: 649; cs: 573
file content (46 lines) | stat: -rw-r--r-- 1,364 bytes parent folder | download | duplicates (8)
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
36
37
38
39
40
41
42
43
44
45
46
// REQUIRES: system-windows
//
// RUN: %clang_cl /Od /Z7 /Zi %s -o %t
// RUN: %dexter --fail-lt 1.0 -w --binary %t --debugger 'dbgeng' -- %s
//
// RUN: %clang_cl /O2 /Z7 /Zi %s -o %t
// RUN: %dexter --fail-lt 1.0 -w --binary %t \
// RUN:      --debugger 'dbgeng' -- %s

// This code is structured to have an early exit with an epilogue in the middle
// of the function, which creates a gap between the beginning of the inlined
// code region and the end. Previously, this confused cdb.

volatile bool shutting_down_ = true;
volatile bool tearing_down_ = true;

void __attribute__((optnone)) setCrashString(const char *) {}
void __attribute__((optnone)) doTailCall() {}
extern "C" void __declspec(noreturn) abort();

void __forceinline inlineCrashFrame() {
  if (shutting_down_ || tearing_down_) {
    setCrashString("crashing");
    // MSVC lays out calls to abort out of line, gets the layout we want.
    abort(); // DexLabel('stop')
  }
}

void __declspec(noinline) callerOfInlineCrashFrame(bool is_keeping_alive) {
  if (is_keeping_alive)
    inlineCrashFrame();
  else
    doTailCall();
}

int __attribute__((optnone)) main() {
  callerOfInlineCrashFrame(true);
}

/*
DexExpectProgramState({'frames':[
     {'function': 'inlineCrashFrame', 'location':{'lineno' : ref('stop')} },
     {'function': 'callerOfInlineCrashFrame'},
     {'function': 'main'}
]})
*/