issue: https://github.com/flatpak/xdg-desktop-portal/issues/1032
➜ ~ systemctl --user status xdg-desktop-portal
● xdg-desktop-portal.service - Portal service
Loaded: loaded (/usr/lib/systemd/user/xdg-desktop-portal.service; static)
Active: activating (start) since Tue 2024-11-26 12:41:59 CST; 1min 5s ago
| #!/usr/bin/env python3 | |
| import sys | |
| from pathlib import Path | |
| def read_csv(file_path: Path): | |
| filename = file_path.name | |
| with open(file_path, 'r') as file: | |
| lines = file.readlines() | |
| result_line_idx = lines.index('"Selected Results Table"\n') |
| # This is a sample config file for CPU2006. It was tested with: | |
| # | |
| # Compiler name/version: [gcc, g++, gfortran 4.3.4] | |
| # [gcc, g++, gfortran 4.4.4] | |
| # [gcc, g++, gfortran 4.6.0] | |
| # Operating system version: [SLES 11 SP1, 64-bit, gcc 4.3.4 and 4.6.0] | |
| # [RHEL 6, 64-bit, gcc 4.4.4] | |
| # Hardware: [Opteron] | |
| # | |
| # If your platform uses different versions, different |
A function clone may prevent GCC from inlining a callee into the caller.
I noticed this when testing target_clones features for performance tuning.
Tested GCC version: GCC 14.2 and GCC master commit 1de156eb2bb445cd0e0a582944dcd75d085f30c9 on both x86-64 and RISC-V target.
A example is shown below:
git clone https://github.com/eembc/coremark.git
| /* Types for recording extension to RISC-V C-API bitmask. */ | |
| struct riscv_ext_bitmask_table_t { | |
| const char *ext; | |
| int groupid; | |
| int bit_position; | |
| }; | |
| static const riscv_ext_bitmask_table_t riscv_ext_bitmask_table[] = | |
| { | |
| {"a", 0, 0}, |
good:
__attribute__((target("default")))
int foo(int *arr) {
int sum = 0;
for (int i=0;i<16;i++) sum += arr[i];
return sum;
}
| cycles:u -> r22:u | |
| instructions:u -> r4d:u |
| #include <stdio.h> | |
| char __attribute__ ((noinline)) foo() { | |
| return -1; | |
| } | |
| int main() { | |
| char ret; | |
| ret = foo(); |
| LLVM: 66e03eda42e1cd6d8e89d13876a44852815efb71 | |
| XiangShan: 136f64975e337409416bed849b58026e7085d758 | |
| Verilator: 0a9b31bb30fd604ff68854290cc5cc90e7dfd172 | |
| QEMU: ddcfe49ed38ebd2a659c53f9dcecf7e33899b29d | |
| PGO: -fprofile-instr-generate (on X86 Host) | |
| rv64gc_zba_zbb_zbc_zbc_zicond: | |
| cpu 0 insns: 1741983881730 | |
| Branch: 103964378641 | |
| Br Taken: 93664761377 |
| LLVM: 62fe12a3dffa5cacc8895207240c6cd542c174b1 | |
| Workload: Verilator(0a9b31bb3) NutShell(52aeba575) Microbench --no-diff | |
| rv64gcv_zba_zbb_zbc_zbs_zicond_zicldst: | |
| Branch: 1530928469 | |
| Branch taken: 1064371731 | |
| Cload count: 63035711 | |
| Cstore count: 16636513 | |
| Cload taken count: 3017039 |