llvm/test/FrontendC++/2006-11-06-StackTrace.cpp
Bill Wendling be8cc2a3de Second attempt:
Massive check in. This changes the "-fast" flag to "-O#" in llc. If you want to
use the old behavior, the flag is -O0. This change allows for finer-grained
control over which optimizations are run at different -O levels.

Most of this work was pretty mechanical. The majority of the fixes came from
verifying that a "fast" variable wasn't used anymore. The JIT still uses a
"Fast" flag. I'll change the JIT with a follow-up patch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70343 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29 00:15:41 +00:00

38 lines
1.2 KiB
C++

// This is a regression test on debug info to make sure that we can get a
// meaningful stack trace from a C++ program.
// RUN: %llvmgcc -S -O0 -g %s -o - | llvm-as | \
// RUN: llc --disable-fp-elim -o %t.s -f -O0 -relocation-model=pic
// RUN: %compile_c %t.s -o %t.o
// RUN: %link %t.o -o %t.exe
// RUN: echo {break DeepStack::deepest\nrun 17\nwhere\n} > %t.in
// RUN: gdb -q -batch -n -x %t.in %t.exe | tee %t.out | \
// RUN: grep {#0 DeepStack::deepest.*(this=.*,.*x=33)}
// RUN: gdb -q -batch -n -x %t.in %t.exe | \
// RUN: grep {#7 0x.* in main.*(argc=\[12\],.*argv=.*)}
// Only works on ppc, x86 and x86_64. Should generalize?
// XFAIL: alpha|ia64|arm
#include <stdlib.h>
class DeepStack {
int seedVal;
public:
DeepStack(int seed) : seedVal(seed) {}
int shallowest( int x ) { return shallower(x + 1); }
int shallower ( int x ) { return shallow(x + 2); }
int shallow ( int x ) { return deep(x + 3); }
int deep ( int x ) { return deeper(x + 4); }
int deeper ( int x ) { return deepest(x + 6); }
int deepest ( int x ) { return x + 7; }
int runit() { return shallowest(seedVal); }
};
int main ( int argc, char** argv) {
DeepStack DS9( (argc > 1 ? atoi(argv[1]) : 0) );
return DS9.runit();
}