diff options
| author | Tom de Vries <tdevries@suse.de> | 2018-08-03 11:21:09 +0000 |
|---|---|---|
| committer | Tom de Vries <vries@gcc.gnu.org> | 2018-08-03 11:21:09 +0000 |
| commit | d989dba8ef02c2406b7c9e62b352197dffc6b880 (patch) | |
| tree | 583b687ac4891326b23d1469a5fd735ff85ffff9 | |
| parent | a77e3a39de3843a8c0a0d59635b2bdd07ee67812 (diff) | |
[c++] Don't emit exception tables for UI_NONE
If a target does not support exceptions, it can indicate this by returning
UI_NONE in TARGET_EXCEPT_UNWIND_INFO. Currently the compiler still emits
exception tables for such a target.
This patch makes sure that no exception tables are emitted if the target does
not support exceptions. This allows us to remove a workaround in
TARGET_ASM_BYTE_OP in the nvptx port.
Build on x86_64 with nvptx accelerator, and tested libgomp.
Build and reg-tested on x86_64.
2018-08-03 Tom de Vries <tdevries@suse.de>
* common/config/nvptx/nvptx-common.c (nvptx_except_unwind_info): Return
UI_NONE.
* config/nvptx/nvptx.c (TARGET_ASM_BYTE_OP): Remove define.
* except.c (output_function_exception_table): Do early exit if
targetm_common.except_unwind_info (&global_options) == UI_NONE.
From-SVN: r263287
| -rw-r--r-- | gcc/ChangeLog | 8 | ||||
| -rw-r--r-- | gcc/common/config/nvptx/nvptx-common.c | 2 | ||||
| -rw-r--r-- | gcc/config/nvptx/nvptx.c | 3 | ||||
| -rw-r--r-- | gcc/except.c | 3 |
4 files changed, 11 insertions, 5 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 88553407612..8d2814b19b3 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,11 @@ +2018-08-03 Tom de Vries <tdevries@suse.de> + + * common/config/nvptx/nvptx-common.c (nvptx_except_unwind_info): Return + UI_NONE. + * config/nvptx/nvptx.c (TARGET_ASM_BYTE_OP): Remove define. + * except.c (output_function_exception_table): Do early exit if + targetm_common.except_unwind_info (&global_options) == UI_NONE. + 2018-08-03 Martin Liska <mliska@suse.cz> * predict.c (dump_prediction): Change to 2 digits diff --git a/gcc/common/config/nvptx/nvptx-common.c b/gcc/common/config/nvptx/nvptx-common.c index f31e0696281..3a124e8844d 100644 --- a/gcc/common/config/nvptx/nvptx-common.c +++ b/gcc/common/config/nvptx/nvptx-common.c @@ -33,7 +33,7 @@ along with GCC; see the file COPYING3. If not see enum unwind_info_type nvptx_except_unwind_info (struct gcc_options *opts ATTRIBUTE_UNUSED) { - return UI_TARGET; + return UI_NONE; } #undef TARGET_HAVE_NAMED_SECTIONS diff --git a/gcc/config/nvptx/nvptx.c b/gcc/config/nvptx/nvptx.c index 62fefda8612..c0b0a2ec3ab 100644 --- a/gcc/config/nvptx/nvptx.c +++ b/gcc/config/nvptx/nvptx.c @@ -6051,9 +6051,6 @@ nvptx_can_change_mode_class (machine_mode, machine_mode, reg_class_t) #undef TARGET_HAVE_SPECULATION_SAFE_VALUE #define TARGET_HAVE_SPECULATION_SAFE_VALUE speculation_safe_value_not_needed -#undef TARGET_ASM_BYTE_OP -#define TARGET_ASM_BYTE_OP "// .byte " - struct gcc_target targetm = TARGET_INITIALIZER; #include "gt-nvptx.h" diff --git a/gcc/except.c b/gcc/except.c index 84666d9041e..728b1e1d349 100644 --- a/gcc/except.c +++ b/gcc/except.c @@ -3189,7 +3189,8 @@ output_function_exception_table (int section) rtx personality = get_personality_function (current_function_decl); /* Not all functions need anything. */ - if (!crtl->uses_eh_lsda) + if (!crtl->uses_eh_lsda + || targetm_common.except_unwind_info (&global_options) == UI_NONE) return; /* No need to emit any boilerplate stuff for the cold part. */ |