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@luismarques
luismarques / sival.py
Last active February 15, 2024 18:10
SiVal report
import warnings
warnings.simplefilter(action='ignore', category=FutureWarning)
import pandas as pd
# Load CSV data into a DataFrame
fn = 'SiVal Items - Update - 2024-02-15.csv'
df = pd.read_csv(fn, keep_default_na=False)
# We want only the remaining tests (ones without a bazel target)
@luismarques
luismarques / gist:af593391badc563c37c394f344c2ac7b
Created October 11, 2022 15:42
OpenTitan jump guards size impact
Format:
% size increase | byte size increase | file
# Sorted by % size increase
7.12% 2192 /home/luismarques/opentitan-build1/output1/execroot/lowrisc_opentitan/bazel-out/k8-fastbuild-ST-2cc462681f62/bin/sw/device/tests/flash_ctrl_ops_test_prog_fpga_cw310.elf
7.13% 2192 /home/luismarques/opentitan-build1/output1/execroot/lowrisc_opentitan/bazel-out/k8-fastbuild-ST-2cc462681f62/bin/sw/device/tests/flash_ctrl_ops_test_prog_sim_verilator.elf
7.14% 2196 /home/luismarques/opentitan-build1/output1/execroot/lowrisc_opentitan/bazel-out/k8-fastbuild-ST-2cc462681f62/bin/sw/device/tests/flash_ctrl_ops_test_prog_sim_dv.elf
7.35% 1760 /home/luismarques/opentitan-build1/output1/execroot/lowrisc_opentitan/bazel-out/k8-fastbuild-ST-2cc462681f62/bin/sw/device/tests/alert_handler_ping_timeout_test_prog_fpga_cw310.elf
7.38% 1764 /home/luismarques/opentitan-build1/output1/execroot/lowrisc_opentitan/bazel-out/k8-fastbuild-ST-2cc462681f62/bin/sw/device/tests/alert_handler_ping_timeout_test_prog_sim_dv.elf
@luismarques
luismarques / gist:2ab5950051a08be0fadfe78f0bf6489f
Last active October 11, 2022 11:46
OpenTitan shadow call stack size impact
Format: (size differences include .text and read-only data, but not .bss)
% size increase | byte size increase | file
# Sorted by % size increase
0.68% 2112 bin/sw/device/silicon_creator/lib/sigverify/mod_exp_ibex_functest_wycheproof_prog_fpga_cw310.elf
0.86% 2684 bin/sw/device/silicon_creator/lib/sigverify/mod_exp_otbn_functest_wycheproof_prog_fpga_cw310.elf
0.86% 2684 bin/sw/device/silicon_creator/lib/sigverify/mod_exp_otbn_functest_wycheproof_prog_sim_dv.elf
0.86% 2684 bin/sw/device/silicon_creator/lib/sigverify/mod_exp_otbn_functest_wycheproof_prog_sim_verilator.elf
0.91% 2860 bin/sw/device/silicon_creator/lib/sigverify/sigverify_dynamic_functest_wycheproof_prog_fpga_cw310.elf
@luismarques
luismarques / disable-trace-and-logging.diff
Created March 9, 2022 15:03
Ibex simple system: disable tracing and logging
diff --git a/examples/simple_system/ibex_simple_system.core b/examples/simple_system/ibex_simple_system.core
index a74ceee3..74c5f7dd 100644
--- a/examples/simple_system/ibex_simple_system.core
+++ b/examples/simple_system/ibex_simple_system.core
@@ -131,7 +131,6 @@ targets:
verilator:
mode: lint-only
verilator_options:
- - "-Wall"
# RAM primitives wider than 64bit (required for ECC) fail to build in
@luismarques
luismarques / compare.py D106408
Created July 21, 2021 10:55
Baseline Clang: /home/luismarques/llvm-builds/llvm-build-2021-07-21-11-05-39-170dd6eb9c5/bin/clang (commit 170dd6eb9c54938b5ba9589b7d4905cc85f16258 2021-07-21 11:05:39)
Patched Clang: /home/luismarques/llvm-builds/llvm-build-2021-01-01-00-00-00-0f6feeb944e/bin/clang (commit 0f6feeb944ebed790916cb37caec6f7f11f50631)
CoreMark O3:
- Δ score: 0.0379%
- score: 0.9738 → 0.9741
- size: 6104 → 6108 (+4 bytes, 0.0655%)
build/coremark/coremark 100.066% +4 bytes
CoreMark O2:
@luismarques
luismarques / time.py
Created December 18, 2020 14:41
import dateutil.parser
import re
date_re = r'(-?(?:[1-9][0-9]*)?[0-9]{4})-(1[0-2]|0[1-9])-(3[01]|0[1-9]|[12][0-9])T(2[0-3]|[01][0-9]):([0-5][0-9]):([0-5][0-9])(\.[0-9]+)?(Z|[+-](?:2[0-3]|[01][0-9]):[0-5][0-9])?'
full_re = f'({date_re}) (\[(\d*)/\d*\]) (.*)'
match = re.compile(full_re).match
def process_log(lines):
last_date = None
total_time = 0
@luismarques
luismarques / case-8cZhmPry.txt
Created April 27, 2020 13:46
[scenario]
filename = case-8cZhmPry.c
arch = rv32gc
abi = ilp32d
cost1 = 36
cost2 = 49
### Source:
short a;
double b;
@luismarques
luismarques / badcode.md
Last active October 6, 2020 08:16
RISC-V code quality issues (GCC vs Clang)
@luismarques
luismarques / gist:6a127b23c8f4aea9d520c562aecb4ac6
Created March 31, 2020 21:53
cmake ../llvm -G Ninja -DCMAKE_BUILD_TYPE="Release" -DBUILD_SHARED_LIBS=True -DLLVM_USE_SPLIT_DWARF=True -DLLVM_BUILD_TESTS=True -DLLVM_TARGETS_TO_BUILD="host;RISCV" -DLLVM_APPEND_VC_REV=False -DLLVM_ENABLE_PROJECTS="clang"
(...)
[1522/3721] Linking CXX shared library lib/libLLVMObject.so.11git
FAILED: lib/libLLVMObject.so.11git
: && /usr/bin/c++ -fPIC -fPIC -fvisibility-inlines-hidden -Werror=date-time -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wno-missing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough -Wno-maybe-uninitialized -Wno-class-memaccess -Wno-redundant-move -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wno-comment -fdiagnostics-color -ffunction-sections -fdata-sections -O3 -DNDEBUG -Wl,-z,defs -Wl,-z,nodelete -Wl,-rpath-link,/home/luismarques/llvm-rv32/build/./lib -Wl,-O3 -Wl,--gc-sections -shared -Wl,-soname,libLLVMObject.so.11git -o lib/libLLVMObject.so.11git lib/Object/CMakeFiles/LLVMObject.dir/Archive.cpp.o lib/Object/CMakeFiles/LL
@luismarques
luismarques / mont-clang-noinline.s
Created March 18, 2020 09:35
embench/build-ibex-clang/src/aha-mont64/aha-mont64: file format elf32-littleriscv
Disassembly of section .vectors:
00100000 <_stack_start-0x100000>:
...
100080: 0040006f j 100084 <_start>