vasilito
cb424d7448
verify-patch-sanity.py validates every active recipe .patch has internally- consistent hunk line counts — catching the 'malformed patch at line N' failure at commit/CI/preflight time instead of hours into a cook. This cycle hit that class three times (qtwaylandscanner, sddm, xwayland), each only discovered when cookbook tried to apply the patch. Running it across the repo found 29 latent malformed patches (validated against GNU patch: e.g. relibc/P3-sysv-ipc reproduces 'malformed patch at line 22'). They were harmless only because they sit in vendored recipes (baked, not re- applied) — but would fail on any version-bump re-derivation. --fix recounts the hunk headers (body untouched) and repaired all 29. Wired into build-preflight.sh (Phase 1.0D) and redbear-ci.yml, with a unit test (test-patch-sanity.sh). Skips archived/legacy trees and unvalidatable formats (empty placeholders, bare-@@ git hunks).
125 lines
3.1 KiB
C++
125 lines
3.1 KiB
C++
//===-- lib/Testing/fp-testing.cpp ------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "flang/Testing/fp-testing.h"
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#include "llvm/Support/Errno.h"
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#include <cstdio>
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#include <cstdlib>
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#include <cstring>
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#if __x86_64__
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#include <xmmintrin.h>
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#endif
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using Fortran::common::RealFlag;
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using Fortran::common::RoundingMode;
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ScopedHostFloatingPointEnvironment::ScopedHostFloatingPointEnvironment(
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#if __x86_64__
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bool treatSubnormalOperandsAsZero, bool flushSubnormalResultsToZero
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#else
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bool, bool
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#endif
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) {
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errno = 0;
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if (feholdexcept(&originalFenv_) != 0) {
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std::fprintf(stderr, "feholdexcept() failed: %s\n",
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llvm::sys::StrError(errno).c_str());
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std::abort();
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}
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fenv_t currentFenv;
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if (fegetenv(¤tFenv) != 0) {
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std::fprintf(
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stderr, "fegetenv() failed: %s\n", llvm::sys::StrError(errno).c_str());
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std::abort();
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}
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#if __x86_64__
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originalMxcsr = _mm_getcsr();
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unsigned int currentMxcsr{originalMxcsr};
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if (treatSubnormalOperandsAsZero) {
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currentMxcsr |= 0x0040;
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} else {
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currentMxcsr &= ~0x0040;
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}
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if (flushSubnormalResultsToZero) {
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currentMxcsr |= 0x8000;
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} else {
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currentMxcsr &= ~0x8000;
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}
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#else
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// TODO others
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#endif
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errno = 0;
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if (fesetenv(¤tFenv) != 0) {
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std::fprintf(
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stderr, "fesetenv() failed: %s\n", llvm::sys::StrError(errno).c_str());
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std::abort();
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}
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#if __x86_64__
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_mm_setcsr(currentMxcsr);
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#endif
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}
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ScopedHostFloatingPointEnvironment::~ScopedHostFloatingPointEnvironment() {
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errno = 0;
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if (fesetenv(&originalFenv_) != 0) {
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std::fprintf(
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stderr, "fesetenv() failed: %s\n", llvm::sys::StrError(errno).c_str());
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std::abort();
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}
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#if __x86_64__
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_mm_setcsr(originalMxcsr);
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#endif
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}
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void ScopedHostFloatingPointEnvironment::ClearFlags() const {
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feclearexcept(FE_ALL_EXCEPT);
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}
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RealFlags ScopedHostFloatingPointEnvironment::CurrentFlags() {
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int exceptions = fetestexcept(FE_ALL_EXCEPT);
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RealFlags flags;
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if (exceptions & FE_INVALID) {
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flags.set(RealFlag::InvalidArgument);
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}
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if (exceptions & FE_DIVBYZERO) {
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flags.set(RealFlag::DivideByZero);
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}
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if (exceptions & FE_OVERFLOW) {
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flags.set(RealFlag::Overflow);
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}
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if (exceptions & FE_UNDERFLOW) {
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flags.set(RealFlag::Underflow);
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}
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if (exceptions & FE_INEXACT) {
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flags.set(RealFlag::Inexact);
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}
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return flags;
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}
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void ScopedHostFloatingPointEnvironment::SetRounding(Rounding rounding) {
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switch (rounding.mode) {
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case RoundingMode::TiesToEven:
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fesetround(FE_TONEAREST);
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break;
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case RoundingMode::ToZero:
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fesetround(FE_TOWARDZERO);
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break;
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case RoundingMode::Up:
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fesetround(FE_UPWARD);
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break;
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case RoundingMode::Down:
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fesetround(FE_DOWNWARD);
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break;
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case RoundingMode::TiesAwayFromZero:
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std::fprintf(stderr, "SetRounding: TiesAwayFromZero not available");
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std::abort();
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break;
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}
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}
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