[libc-commits] [libc] [libc] Make errno asserts noop on gpu targets (PR #166606)

[Marcell Leleszi via libc-commits]

https://github.com/mleleszi updated https://github.com/llvm/llvm-project/pull/166606

>From ecddf868e3383d0b17c8b1a95da1d03c47865738 Mon Sep 17 00:00:00 2001
From: Marcell Leleszi <mleleszi at google.com>
Date: Wed, 5 Nov 2025 18:17:16 +0000
Subject: [PATCH] Make errno asserts noop on gpu targets

---
 libc/test/IntegrationTest/test.h       | 14 ++++++++++++++
 libc/test/UnitTest/ErrnoCheckingTest.h | 14 ++++++++++++++
 2 files changed, 28 insertions(+)

diff --git a/libc/test/IntegrationTest/test.h b/libc/test/IntegrationTest/test.h
index 4a03f7aa6318b..126143912f052 100644
--- a/libc/test/IntegrationTest/test.h
+++ b/libc/test/IntegrationTest/test.h
@@ -68,9 +68,23 @@
 ////////////////////////////////////////////////////////////////////////////////
 // Errno checks.
 
+#ifdef LIBC_TARGET_ARCH_IS_GPU
+#define ASSERT_ERRNO_EQ(VAL)
+#else
 #define ASSERT_ERRNO_EQ(VAL) ASSERT_EQ(VAL, static_cast<int>(errno))
+#endif
+
+#ifdef LIBC_TARGET_ARCH_IS_GPU
+#define ASSERT_ERRNO_SUCCESS() ASSERT_EQ(0, static_cast<int>(errno))
+#else
 #define ASSERT_ERRNO_SUCCESS() ASSERT_EQ(0, static_cast<int>(errno))
+#endif
+
+#ifdef LIBC_TARGET_ARCH_IS_GPU
+#define ASSERT_ERRNO_FAILURE()
+#else
 #define ASSERT_ERRNO_FAILURE() ASSERT_NE(0, static_cast<int>(errno))
+#endif
 
 // Integration tests are compiled with -ffreestanding which stops treating
 // the main function as a non-overloadable special function. Hence, we use a
diff --git a/libc/test/UnitTest/ErrnoCheckingTest.h b/libc/test/UnitTest/ErrnoCheckingTest.h
index 5b1bc9441d830..51ff2b6a0a4cc 100644
--- a/libc/test/UnitTest/ErrnoCheckingTest.h
+++ b/libc/test/UnitTest/ErrnoCheckingTest.h
@@ -16,17 +16,31 @@
 // Define macro to validate the value stored in the errno and restore it
 // to zero.
 
+#ifdef LIBC_TARGET_ARCH_IS_GPU
+#define ASSERT_ERRNO_EQ(VAL)
+#else
 #define ASSERT_ERRNO_EQ(VAL)                                                   \
   do {                                                                         \
     ASSERT_EQ(VAL, static_cast<int>(libc_errno));                              \
     libc_errno = 0;                                                            \
   } while (0)
+#endif
+
+#ifdef LIBC_TARGET_ARCH_IS_GPU
+#define ASSERT_ERRNO_SUCCESS()
+#else
 #define ASSERT_ERRNO_SUCCESS() ASSERT_EQ(0, static_cast<int>(libc_errno))
+#endif
+
+#ifdef LIBC_TARGET_ARCH_IS_GPU
+#define ASSERT_ERRNO_FAILURE()
+#else
 #define ASSERT_ERRNO_FAILURE()                                                 \
   do {                                                                         \
     ASSERT_NE(0, static_cast<int>(libc_errno));                                \
     libc_errno = 0;                                                            \
   } while (0)
+#endif
 
 namespace LIBC_NAMESPACE_DECL {
 namespace testing {