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author | Kito Cheng <kito.cheng@sifive.com> | 2022-08-29 10:28:28 +0800 |
---|---|---|
committer | Kito Cheng <kito.cheng@sifive.com> | 2022-08-29 10:32:21 +0800 |
commit | 7b9b6969a99725a171ee0ad4006cc39b0f7abf77 (patch) | |
tree | aab6f027e76c1201a52ae50c4cc4a612baf2c1eb /gcc/config | |
parent | 31380d4b7925912b9c34afe8cdb8dffe6cd50b94 (diff) | |
download | gcc-7b9b6969a99725a171ee0ad4006cc39b0f7abf77.zip gcc-7b9b6969a99725a171ee0ad4006cc39b0f7abf77.tar.gz gcc-7b9b6969a99725a171ee0ad4006cc39b0f7abf77.tar.bz2 |
RISC-V: Suppress -Wclass-memaccess warning
poly_int64 is non-trivial type, we need to clean up manully instead
of memset to prevent this warning.
../../gcc/gcc/config/riscv/riscv.cc: In function 'void riscv_compute_frame_info()':
../../gcc/gcc/config/riscv/riscv.cc:4113:10: error: 'void* memset(void*, int, size_t)' clearing an object of non-trivial type 'struct riscv_frame_info'; use assignment or value-initialization instead [-Werror=class-memaccess]
4113 | memset (frame, 0, sizeof (*frame));
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
../../gcc/gcc/config/riscv/riscv.cc:101:17: note: 'struct riscv_frame_info' declared here
101 | struct GTY(()) riscv_frame_info {
| ^~~~~~~~~~~~~~~~
cc1plus: all warnings being treated as errors
gcc/ChangeLog:
* config/riscv/riscv.cc (riscv_frame_info): Introduce `reset(void)`;
(riscv_frame_info::reset(void)): New.
(riscv_compute_frame_info): Use riscv_frame_info::reset instead
of memset when clean frame.
Diffstat (limited to 'gcc/config')
-rw-r--r-- | gcc/config/riscv/riscv.cc | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/gcc/config/riscv/riscv.cc b/gcc/config/riscv/riscv.cc index 6341dc9..4d439e1 100644 --- a/gcc/config/riscv/riscv.cc +++ b/gcc/config/riscv/riscv.cc @@ -123,6 +123,9 @@ struct GTY(()) riscv_frame_info { /* The offset of arg_pointer_rtx from the bottom of the frame. */ poly_int64 arg_pointer_offset; + + /* Reset this struct, clean all field to zero. */ + void reset(void); }; enum riscv_privilege_levels { @@ -392,6 +395,23 @@ static const struct riscv_tune_info riscv_tune_info_table[] = { { "size", generic, &optimize_size_tune_info }, }; +void riscv_frame_info::reset(void) +{ + total_size = 0; + mask = 0; + fmask = 0; + save_libcall_adjustment = 0; + + gp_sp_offset = 0; + fp_sp_offset = 0; + + frame_pointer_offset = 0; + + hard_frame_pointer_offset = 0; + + arg_pointer_offset = 0; +} + /* Implement TARGET_MIN_ARITHMETIC_PRECISION. */ static unsigned int @@ -4179,7 +4199,7 @@ riscv_compute_frame_info (void) interrupt_save_prologue_temp = true; } - memset (frame, 0, sizeof (*frame)); + frame->reset(); if (!cfun->machine->naked_p) { |