With commit r16-4212-gf256a13f8aed833fe964a2ba541b7b30ad9b4a76
"c++, gimplify: Implement C++26 P2795R5 - Erroneous behavior for uninitialized
reads [PR114457]",
we acquired:
{+FAIL: libgomp.c++/target-flex-101.C (internal compiler error: in
assign_temp, at function.cc:990)+}
[-PASS:-]{+FAIL:+} libgomp.c++/target-flex-101.C (test for excess errors)
[-PASS:-]{+UNRESOLVED:+} libgomp.c++/target-flex-101.C [-execution
test-]{+compilation failed to produce executable+}
... for GCN, nvptx offloading compilation, and on the other hand:
[-XFAIL:-]{+XPASS:+} libgomp.c++/target-std__flat_map-concurrent.C
(internal compiler error[-: in assign_temp, at function.cc:990)-]
[-XFAIL:-]{+XPASS:+} libgomp.c++/target-std__flat_map-concurrent.C (test
for excess errors)
[-UNRESOLVED:-]{+PASS:+} libgomp.c++/target-std__flat_map-concurrent.C
[-compilation failed to produce executable-]{+execution test+}
[-XFAIL:-]{+XPASS:+} libgomp.c++/target-std__flat_multimap-concurrent.C
(internal compiler error[-: in assign_temp, at function.cc:990)-]
[-XFAIL:-]{+XPASS:+} libgomp.c++/target-std__flat_multimap-concurrent.C
(test for excess errors)
[-UNRESOLVED:-]{+PASS:+} libgomp.c++/target-std__flat_multimap-concurrent.C
[-compilation failed to produce executable-]{+execution test+}
... for GCN offloading compilation (already PASSed for nvptx).
Note that these test cases explicitly use '-std=c++23', so don't undergo the
new C++26 P2795R5 functionality. Yet, comparing before vs. after that commit,
in the 'gimple' dumps (that is, early host compilation), there are a lot of
changes where 'gimple_assign <constructor, [...], {CLOBBER(bob)}, NULL, NULL>'s
and relatedly 'gimple_bind's newly appear/no longer appear elsewhere. This
leads to correspondingly different code at the beginning of offloading
compilation. Why/how that now ('libgomp.c++/target-flex-101.C') vs. before
('libgomp.c++/{target-std__flat_map-concurrent.C,target-std__flat_multimap-concurrent.C}')
translates into 'expand' ICEs, I can't tell.
PR c++/114457
PR c++/122268
PR c++/120450
libgomp/
* testsuite/libgomp.c++/target-flex-101.C: XFAIL GCN, nvptx
offloading compilation.
* testsuite/libgomp.c++/target-std__flat_map-concurrent.C:
Un-XFAIL GCN offloading compilation.
* testsuite/libgomp.c++/target-std__flat_multimap-concurrent.C:
Likewise.
---
libgomp/testsuite/libgomp.c++/target-flex-101.C | 3 +++
.../testsuite/libgomp.c++/target-std__flat_map-concurrent.C | 4 ----
.../libgomp.c++/target-std__flat_multimap-concurrent.C | 4 ----
3 files changed, 3 insertions(+), 8 deletions(-)
diff --git a/libgomp/testsuite/libgomp.c++/target-flex-101.C
b/libgomp/testsuite/libgomp.c++/target-flex-101.C
index be9037e9718..28201f468b6 100644
--- a/libgomp/testsuite/libgomp.c++/target-flex-101.C
+++ b/libgomp/testsuite/libgomp.c++/target-flex-101.C
@@ -1,5 +1,8 @@
/* { dg-additional-options -std=c++23 } */
+/* { dg-ice {TODO PR122268} { offload_target_amdgcn || offload_target_nvptx } }
+ { dg-excess-errors {'mkoffload' failure etc.} { xfail {
offload_target_amdgcn || offload_target_nvptx } } } */
+
/* C++23 container adaptors in target region.
Severely needs additional tests. */
diff --git a/libgomp/testsuite/libgomp.c++/target-std__flat_map-concurrent.C
b/libgomp/testsuite/libgomp.c++/target-std__flat_map-concurrent.C
index 9e59907c09b..8a3082cceda 100644
--- a/libgomp/testsuite/libgomp.c++/target-std__flat_map-concurrent.C
+++ b/libgomp/testsuite/libgomp.c++/target-std__flat_map-concurrent.C
@@ -2,10 +2,6 @@
// { dg-additional-options "-std=c++23" }
// { dg-additional-options -DMEM_SHARED { target offload_device_shared_as } }
-/* { dg-ice {TODO PR120450} { offload_target_amdgcn && { !
offload_device_shared_as } } }
- { dg-excess-errors {'mkoffload' failure etc.} { xfail {
offload_target_amdgcn && { ! offload_device_shared_as } } } }
- (For effective-target 'offload_device_shared_as', we've got '-DMEM_SHARED',
and therefore don't invoke the constructor with placement new.) */
-
#include <stdlib.h>
#include <time.h>
#include <set>
diff --git
a/libgomp/testsuite/libgomp.c++/target-std__flat_multimap-concurrent.C
b/libgomp/testsuite/libgomp.c++/target-std__flat_multimap-concurrent.C
index 1dc60c8a627..0a1377d13c7 100644
--- a/libgomp/testsuite/libgomp.c++/target-std__flat_multimap-concurrent.C
+++ b/libgomp/testsuite/libgomp.c++/target-std__flat_multimap-concurrent.C
@@ -2,10 +2,6 @@
// { dg-additional-options "-std=c++23" }
// { dg-additional-options -DMEM_SHARED { target offload_device_shared_as } }
-/* { dg-ice {TODO PR120450} { offload_target_amdgcn && { !
offload_device_shared_as } } }
- { dg-excess-errors {'mkoffload' failure etc.} { xfail {
offload_target_amdgcn && { ! offload_device_shared_as } } } }
- (For effective-target 'offload_device_shared_as', we've got '-DMEM_SHARED',
and therefore don't invoke the constructor with placement new.) */
-
#include <stdlib.h>
#include <time.h>
#include <flat_map>
--
2.34.1
