It turned out that a compiler built without offloading support
and one with can produce slightly different diagnostic.
Offloading support implies ENABLE_OFFLOAD which implies that
g->have_offload is set when offloading is actually needed.
In cgraphunit.c, the latter causes flag_generate_offload = 1,
which in turn affects tree.c's free_lang_data.
The result is that the front-end specific diagnostic gets reset
('tree_diagnostics_defaults (global_dc)'), which affects in this
case 'Warning' vs. 'warning' via the Fortran frontend.
Result: 'Warning:' vs. 'warning:'.
Side note: Other FE also override the diagnostic, leading to
similar differences, e.g. the C++ FE outputs mangled function
names differently, cf. patch thread.
libgomp/ChangeLog:
* testsuite/libgomp.oacc-fortran/par-reduction-2-1.f:
Use [Ww]arning in dg-bogus as FE diagnostic and default
diagnostic differ and the result depends on ENABLE_OFFLOAD.
* testsuite/libgomp.oacc-fortran/par-reduction-2-2.f: Likewise.
* testsuite/libgomp.oacc-fortran/parallel-dims.f90: Likewise.
* testsuite/libgomp.oacc-fortran/parallel-reduction.f90: Likewise.
gcc/testsuite/ChangeLog:
* gfortran.dg/goacc/classify-serial.f95:
Use [Ww]arning in dg-bogus as FE diagnostic and default
diagnostic differ and the result depends on ENABLE_OFFLOAD.
* gfortran.dg/goacc/kernels-decompose-2.f95: Likewise.
* gfortran.dg/goacc/routine-module-mod-1.f90: Likewise.
(cherry picked from commit
bd7ebe9da745a62184052dd1b15f4dd10fbdc9f4)
+2021-04-30 Kwok Cheung Yeung <kcy@codesourcery.com>
+
+ Backport from mainline
+ 2021-04-26 Tobias Burnus <tobias@codesourcery.com>
+
+ * gfortran.dg/goacc/classify-serial.f95:
+ Use [Ww]arning in dg-bogus as FE diagnostic and default
+ diagnostic differ and the result depends on ENABLE_OFFLOAD.
+ * gfortran.dg/goacc/kernels-decompose-2.f95: Likewise.
+ * gfortran.dg/goacc/routine-module-mod-1.f90: Likewise.
+
2021-04-30 Kwok Cheung Yeung <kcy@codesourcery.com>
Backport from mainline
call setup(a, b)
!$acc serial loop copyin (a(0:n-1), b(0:n-1)) copyout (c(0:n-1)) ! { dg-message "optimized: assigned OpenACC gang vector loop parallelism" }
- ! { dg-bogus "Warning: region contains gang partitioned code but is not gang partitioned" "TODO 'serial'" { xfail *-*-* } .-1 }
- ! { dg-bogus "Warning: region contains worker partitioned code but is not worker partitioned" "" { target *-*-* } .-2 }
- ! { dg-bogus "Warning: region contains vector partitioned code but is not vector partitioned" "TODO 'serial'" { xfail *-*-* } .-3 }
+ ! { dg-bogus "\[Ww\]arning: region contains gang partitioned code but is not gang partitioned" "TODO 'serial'" { xfail *-*-* } .-1 }
+ ! { dg-bogus "\[Ww\]arning: region contains worker partitioned code but is not worker partitioned" "" { target *-*-* } .-2 }
+ ! { dg-bogus "\[Ww\]arning: region contains vector partitioned code but is not vector partitioned" "TODO 'serial'" { xfail *-*-* } .-3 }
do i = 0, n - 1
c(i) = a(i) + b(i)
end do
!$acc end kernels
!$acc kernels
- ! { dg-bogus "Warning: region contains gang partitioned code but is not gang partitioned" "TODO 'kernels'" { xfail *-*-* } .-1 }
+ ! { dg-bogus "\[Ww\]arning: region contains gang partitioned code but is not gang partitioned" "TODO 'kernels'" { xfail *-*-* } .-1 }
y = f_g (a(5)) ! { dg-line l_part[incr c_part] }
!TODO If such a construct is placed in its own part (like it is, here), can't this actually use gang paralelism, instead of "gang-single"?
! { dg-message "note: beginning 'gang-single' part in OpenACC 'kernels' region" "" { target *-*-* } l_part$c_part }
subroutine g_1 ! { dg-warning "region is worker partitioned but does not contain worker partitioned code" }
implicit none
!$acc routine gang
- ! { dg-bogus "Warning: region is worker partitioned but does not contain worker partitioned code" "TODO default 'gang' 'vector'" { xfail *-*-* } .-3 }
+ ! { dg-bogus "\[Ww\]arning: region is worker partitioned but does not contain worker partitioned code" "TODO default 'gang' 'vector'" { xfail *-*-* } .-3 }
integer :: i
+2021-04-30 Kwok Cheung Yeung <kcy@codesourcery.com>
+
+ Backport from mainline
+ 2021-04-26 Tobias Burnus <tobias@codesourcery.com>
+
+ * testsuite/libgomp.oacc-fortran/par-reduction-2-1.f:
+ Use [Ww]arning in dg-bogus as FE diagnostic and default
+ diagnostic differ and the result depends on ENABLE_OFFLOAD.
+ * testsuite/libgomp.oacc-fortran/par-reduction-2-2.f: Likewise.
+ * testsuite/libgomp.oacc-fortran/parallel-dims.f90: Likewise.
+ * testsuite/libgomp.oacc-fortran/parallel-reduction.f90: Likewise.
+
2021-04-30 Kwok Cheung Yeung <kcy@codesourcery.com>
Backport from mainline
!$ACC PARALLEL NUM_GANGS(256) NUM_WORKERS(32) VECTOR_LENGTH(32)
!$ACC& REDUCTION(+:RES1) COPY(RES1, RES2) ASYNC(1)
-! { dg-bogus "Warning: region is gang partitioned but does not contain gang partitioned code" "TODO 'reduction', 'atomic'" { xfail *-*-* } .-1 }
+! { dg-bogus "\[Ww\]arning: region is gang partitioned but does not contain gang partitioned code" "TODO 'reduction', 'atomic'" { xfail *-*-* } .-1 }
! { dg-warning "region is worker partitioned but does not contain worker partitioned code" "" { target *-*-* } .-2 }
! { dg-warning "region is vector partitioned but does not contain vector partitioned code" "" { target *-*-* } .-3 }
res1 = res1 + 5
!$ACC PARALLEL NUM_GANGS(8) NUM_WORKERS(32) VECTOR_LENGTH(32)
!$ACC& REDUCTION(*:RES1) COPY(RES1, RES2) ASYNC(1)
-! { dg-bogus "Warning: region is gang partitioned but does not contain gang partitioned code" "TODO 'reduction', 'atomic'" { xfail *-*-* } .-1 }
+! { dg-bogus "\[Ww\]arning: region is gang partitioned but does not contain gang partitioned code" "TODO 'reduction', 'atomic'" { xfail *-*-* } .-1 }
! { dg-warning "region is worker partitioned but does not contain worker partitioned code" "" { target *-*-* } .-2 }
! { dg-warning "region is vector partitioned but does not contain vector partitioned code" "" { target *-*-* } .-3 }
res1 = res1 * 5
!$ACC PARALLEL NUM_GANGS(256) NUM_WORKERS(32) VECTOR_LENGTH(32)
!$ACC& REDUCTION(+:RES1) COPY(RES1, RES2) ASYNC(1)
-! { dg-bogus "Warning: region is gang partitioned but does not contain gang partitioned code" "TODO 'reduction', 'atomic'" { xfail *-*-* } .-1 }
+! { dg-bogus "\[Ww\]arning: region is gang partitioned but does not contain gang partitioned code" "TODO 'reduction', 'atomic'" { xfail *-*-* } .-1 }
! { dg-warning "region is worker partitioned but does not contain worker partitioned code" "" { target *-*-* } .-2 }
! { dg-warning "region is vector partitioned but does not contain vector partitioned code" "" { target *-*-* } .-3 }
res1 = res1 + 5
!$ACC PARALLEL NUM_GANGS(8) NUM_WORKERS(32) VECTOR_LENGTH(32)
!$ACC& REDUCTION(*:RES1) COPY(RES1, RES2) ASYNC(1)
-! { dg-bogus "Warning: region is gang partitioned but does not contain gang partitioned code" "TODO 'reduction', 'atomic'" { xfail *-*-* } .-1 }
+! { dg-bogus "\[Ww\]arning: region is gang partitioned but does not contain gang partitioned code" "TODO 'reduction', 'atomic'" { xfail *-*-* } .-1 }
! { dg-warning "region is worker partitioned but does not contain worker partitioned code" "" { target *-*-* } .-2 }
! { dg-warning "region is vector partitioned but does not contain vector partitioned code" "" { target *-*-* } .-3 }
res1 = res1 * 5
vectors_max = -huge(gangs_max) - 1 ! INT_MIN
!$acc serial copy (vectors_actual) &
!$acc copy (gangs_min, gangs_max, workers_min, workers_max, vectors_min, vectors_max) ! { dg-warning "using vector_length \\(32\\), ignoring 1" "" { target openacc_nvidia_accel_selected } }
- ! { dg-bogus "Warning: region contains gang partitioned code but is not gang partitioned" "TODO 'serial'" { xfail *-*-* } .-1 }
- ! { dg-bogus "Warning: region contains worker partitioned code but is not worker partitioned" "TODO 'serial'" { xfail *-*-* } .-2 }
- ! { dg-bogus "Warning: region contains vector partitioned code but is not vector partitioned" "TODO 'serial'" { xfail *-*-* } .-3 }
+ ! { dg-bogus "\[Ww\]arning: region contains gang partitioned code but is not gang partitioned" "TODO 'serial'" { xfail *-*-* } .-1 }
+ ! { dg-bogus "\[Ww\]arning: region contains worker partitioned code but is not worker partitioned" "TODO 'serial'" { xfail *-*-* } .-2 }
+ ! { dg-bogus "\[Ww\]arning: region contains vector partitioned code but is not vector partitioned" "TODO 'serial'" { xfail *-*-* } .-3 }
if (acc_on_device (acc_device_nvidia)) then
! The GCC nvptx back end enforces vector_length (32).
! It's unclear if that's actually permissible here;
s2 = 0
!$acc parallel reduction(+:s1,s2) num_gangs (n) copy(s1)
- ! { dg-bogus "Warning: region is gang partitioned but does not contain gang partitioned code" "TODO 'reduction'" { xfail *-*-* } .-1 }
+ ! { dg-bogus "\[Ww\]arning: region is gang partitioned but does not contain gang partitioned code" "TODO 'reduction'" { xfail *-*-* } .-1 }
s1 = s1 + 1
s2 = s2 + 1
!$acc end parallel
integer :: s1, s2, n
!$acc parallel reduction(+:s1,s2) num_gangs (10) copy(s1)
- ! { dg-bogus "Warning: region is gang partitioned but does not contain gang partitioned code" "TODO 'reduction'" { xfail *-*-* } .-1 }
+ ! { dg-bogus "\[Ww\]arning: region is gang partitioned but does not contain gang partitioned code" "TODO 'reduction'" { xfail *-*-* } .-1 }
s1 = s1 + 1
s2 = s2 + 1
!$acc end parallel