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| author | Tom de Vries <tdevries@suse.de> | 2018-08-02 15:59:01 +0000 |
|---|---|---|
| committer | Tom de Vries <vries@gcc.gnu.org> | 2018-08-02 15:59:01 +0000 |
| commit | 77e0a97acf7b00c1e68e4738fdf275a4cffc2e50 (patch) | |
| tree | f979379356a2fb786a69e3e12808e4d7a1454b24 /libgomp/testsuite/libgomp.oacc-c++/routine-1-auto.C | |
| parent | 007b11a588a3f8dde791abc3c4185ae1b875f857 (diff) | |
| download | gcc-77e0a97acf7b00c1e68e4738fdf275a4cffc2e50.zip gcc-77e0a97acf7b00c1e68e4738fdf275a4cffc2e50.tar.gz gcc-77e0a97acf7b00c1e68e4738fdf275a4cffc2e50.tar.bz2 | |
[nvptx] Ignore c++ exceptions
The nvptx port can't support exceptions using sjlj, because ptx does not
support sjlj. However, default_except_unwind_info still returns UI_SJLJ, even
even if we configure with --disable-sjlj-exceptions, because UI_SJLJ is the
fallback option.
The reason default_except_unwind_info doesn't return UI_DWARF2 is because
DWARF2_UNWIND_INFO is not defined in defaults.h, because
INCOMING_RETURN_ADDR_RTX is not defined, because there's no ptx equivalent.
Testcase libgomp.c++/for-15.C currently doesn't compile unless fno-exceptions
is added because:
- it tries to generate sjlj exception handling code, and
- it tries to generate exception tables using label-addressed .byte sequence.
Ptx doesn't support generating random data at a label, nor being able to
load/write data relative to a label.
This patch fixes the first problem by using UI_TARGET for nvptx.
The second problem is worked around by generating all .byte sequences commented
out. It would be better to have a narrower workaround, and define
TARGET_ASM_BYTE_OP to "error: .byte unsupported " or some such.
This patch does not enable exceptions for nvptx, it merely allows c++ programs
to run correctly if they do no use exception handling.
Build and reg-tested on x86_64 with nvptx accelerator.
2018-08-02 Tom de Vries <tdevries@suse.de>
PR target/86660
* common/config/nvptx/nvptx-common.c (nvptx_except_unwind_info): New
function. Return UI_TARGET unconditionally.
(TARGET_EXCEPT_UNWIND_INFO): Redefine to nvptx_except_unwind_info.
* config/nvptx/nvptx.c (TARGET_ASM_BYTE_OP): Emit commented out '.byte'.
* testsuite/libgomp.oacc-c++/routine-1-auto.C: Remove -fno-exceptions.
* testsuite/libgomp.oacc-c++/routine-1-template-auto.C: Same.
* testsuite/libgomp.oacc-c++/routine-1-template-trailing-return-type.C:
Same.
* testsuite/libgomp.oacc-c++/routine-1-template.C: Same.
* testsuite/libgomp.oacc-c++/routine-1-trailing-return-type.C: Same.
* testsuite/libgomp.oacc-c-c++-common/routine-1.c: Same.
From-SVN: r263265
Diffstat (limited to 'libgomp/testsuite/libgomp.oacc-c++/routine-1-auto.C')
| -rw-r--r-- | libgomp/testsuite/libgomp.oacc-c++/routine-1-auto.C | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/libgomp/testsuite/libgomp.oacc-c++/routine-1-auto.C b/libgomp/testsuite/libgomp.oacc-c++/routine-1-auto.C index f4b54e5..771a273 100644 --- a/libgomp/testsuite/libgomp.oacc-c++/routine-1-auto.C +++ b/libgomp/testsuite/libgomp.oacc-c++/routine-1-auto.C @@ -1,7 +1,5 @@ // Routine with "auto" return type. -// { dg-additional-options "-fno-exceptions" } - #define TEMPLATE #define TYPE int #define RETURN_1 auto |