diff options
Diffstat (limited to 'gcc/testsuite/g++.dg/opt/eh4.C')
-rw-r--r-- | gcc/testsuite/g++.dg/opt/eh4.C | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/opt/eh4.C b/gcc/testsuite/g++.dg/opt/eh4.C new file mode 100644 index 000000000..0a62ee2db --- /dev/null +++ b/gcc/testsuite/g++.dg/opt/eh4.C @@ -0,0 +1,59 @@ +// { dg-do run } +// { dg-options "-O3" } + +// Make sure that the call to terminate within F2 is not eliminated +// by incorrect MUST_NOT_THROW optimization. Note that we expect F1 +// to be inlined into F2 in order to expose this case. + +#include <cstdlib> +#include <exception> + +static volatile int zero = 0; + +// Note that we need F0 to not be marked nothrow, though we don't actually +// want a throw to happen at runtime here. The noinline tag is merely to +// make sure the assembly in F0 is not unnecessarily complex. +static void __attribute__((noinline)) f0() +{ + if (zero != 0) + throw 0; +} + +struct S1 +{ + S1() { } + ~S1() { f0(); } +}; + +static void f1() +{ + S1 s1; + throw 1; +} + +struct S2 +{ + S2() { } + ~S2() { f1(); } +}; + +static void __attribute__((noinline)) f2() +{ + S2 s2; + throw 2; +} + +static void pass() +{ + exit (0); +} + +int main() +{ + std::set_terminate (pass); + try { + f2(); + } catch (...) { + } + abort (); +} |