Viewing file:  lambda-mangle-1.C (2.31 KB) -rw-r--r--
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// { dg-do compile { target c++14 } }
// PRs 78621
// We erroneously mangled lambda auto parms as-if template parameters (T<n>_),
// rather than auto (Da). Fixed in abi version 11
template<typename T> class X;
template<typename T>
T &&forward (T &v)
{
return static_cast<T &&> (v);
}
template<typename T>
void eat (T &v)
{
}
template<typename S, typename T>
void eat (S &, T &v)
{
}
void Foo ()
{
auto lam = [](auto &) { };
auto lam_1 = [](int &, auto &) { };
auto lam_2 = [](auto &, X<int> &) { };
auto lam_3 = [](auto (*)[5]) { };
forward (lam);
forward (lam_1);
forward (lam_2);
forward (lam_3);
eat (lam);
eat (lam_1);
eat (lam_2);
eat (lam_3);
// The auto lambda should mangle similarly to the non-auto one
auto lambda_1 = [](float *, float *) { };
auto lambda_2 = [](auto *, auto *) { };
auto lambda_3 = [](auto *, auto *) { };
int *i;
eat (i, lambda_1);
eat (i, lambda_2);
// The autos should squangle to the first one.
eat (lambda_2, lambda_3);
}
template<typename X> void Bar ()
{
auto lambda_1 = [](X *, float *, float *) { };
auto lambda_2 = [](X *, auto *, auto *) { };
auto lambda_3 = [](X *, auto *...) {};
int *i;
eat (i, lambda_1);
eat (i, lambda_2);
eat (i, lambda_3);
}
void Baz ()
{
Bar<short> ();
}
// { dg-final { scan-assembler "_Z7forwardIZ3FoovEUlRT_E_EOS0_S1_:" } }
// { dg-final { scan-assembler "_Z7forwardIZ3FoovEUlRiRT_E0_EOS1_S2_:" } }
// { dg-final { scan-assembler "_Z7forwardIZ3FoovEUlRT_R1XIiEE1_EOS0_S1_:" } }
// { dg-final { scan-assembler "_Z7forwardIZ3FoovEUlPA5_T_E2_EOS0_RS0_:" } }
// { dg-final { scan-assembler "_Z3eatIZ3FoovEUlRT_E_EvS1_:" } }
// { dg-final { scan-assembler "_Z3eatIZ3FoovEUlRiRT_E0_EvS2_:" } }
// { dg-final { scan-assembler "_Z3eatIZ3FoovEUlRT_R1XIiEE1_EvS1_:" } }
// { dg-final { scan-assembler "_Z3eatIZ3FoovEUlPA5_T_E2_EvRS0_:" } }
// { dg-final { scan-assembler "_Z3eatIPiZ3FoovEUlPfS1_E3_EvRT_RT0_:" } }
// { dg-final { scan-assembler "_Z3eatIPiZ3FoovEUlPT_PT0_E4_EvRS1_RS3_:" } }
// { dg-final { scan-assembler "_Z3eatIZ3FoovEUlPT_PT0_E4_Z3FoovEUlS1_S3_E5_EvRS0_RS2_:" } }
// { dg-final { scan-assembler "_Z3eatIPiZ3BarIsEvvEUlPsPfS3_E_EvRT_RT0_:" } }
// { dg-final { scan-assembler "_Z3eatIPiZ3BarIsEvvEUlPsPT_PT0_E0_EvRS3_RS5_:" } }
// { dg-final { scan-assembler "_Z3eatIPiZ3BarIsEvvEUlPsDpPT_E1_EvRT_RT0_:" } }
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