From 62ece2c5a95cc989648c39155173d3bae27e89a3 Mon Sep 17 00:00:00 2001 From: David Matlack Date: Thu, 29 Sep 2022 11:12:05 -0700 Subject: [PATCH] KVM: selftests: Tell the compiler that code after TEST_FAIL() is unreachable Add __builtin_unreachable() to TEST_FAIL() so that the compiler knows that any code after a TEST_FAIL() is unreachable. Signed-off-by: David Matlack Message-Id: <20220929181207.2281449-2-dmatlack@google.com> Signed-off-by: Paolo Bonzini --- tools/testing/selftests/kvm/include/test_util.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/kvm/include/test_util.h b/tools/testing/selftests/kvm/include/test_util.h index 5c5a88180b6c3..befc754ce9b3b 100644 --- a/tools/testing/selftests/kvm/include/test_util.h +++ b/tools/testing/selftests/kvm/include/test_util.h @@ -63,8 +63,10 @@ void test_assert(bool exp, const char *exp_str, #a, #b, #a, (unsigned long) __a, #b, (unsigned long) __b); \ } while (0) -#define TEST_FAIL(fmt, ...) \ - TEST_ASSERT(false, fmt, ##__VA_ARGS__) +#define TEST_FAIL(fmt, ...) do { \ + TEST_ASSERT(false, fmt, ##__VA_ARGS__); \ + __builtin_unreachable(); \ +} while (0) size_t parse_size(const char *size);