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Differential D91229 Diff 304385 clang/test/CodeGen/catch-nullptr-and-nonzero-offset.c

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clang/test/CodeGen/catch-nullptr-and-nonzero-offset.c

// RUN: %clang_cc1 -x c -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s --check-prefixes=CHECK,CHECK-NOSANITIZE // FIXME: automatically inserted -allow-unused-prefixes=true. Is the behavior intended?
// RUN: %clang_cc1 -x c -fsanitize=pointer-overflow -fno-sanitize-recover=pointer-overflow -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_pointer_overflow" --check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-ANYRECOVER,CHECK-SANITIZE-NORECOVER,CHECK-SANITIZE-UNREACHABLE,CHECK-SANITIZE-C,CHECK-SANITIZE-ANYRECOVER-C,CHECK-SANITIZE-NORECOVER-C,CHECK-SANITIZE-UNREACHABLE-C // RUN: %clang_cc1 -x c -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s --allow-unused-prefixes=true -check-prefixes=CHECK,CHECK-NOSANITIZE
// RUN: %clang_cc1 -x c -fsanitize=pointer-overflow -fsanitize-recover=pointer-overflow -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_pointer_overflow" --check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-ANYRECOVER,CHECK-SANITIZE-RECOVER,CHECK-SANITIZE-C,CHECK-SANITIZE-ANYRECOVER-C,CHECK-SANITIZE-RECOVER-C // FIXME: automatically inserted -allow-unused-prefixes=true. Is the behavior intended?
// RUN: %clang_cc1 -x c -fsanitize=pointer-overflow -fsanitize-trap=pointer-overflow -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_pointer_overflow" --check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-TRAP,CHECK-SANITIZE-UNREACHABLE,CHECK-SANITIZE-C,CHECK-SANITIZE-TRAP-C,CHECK-SANITIZE-UNREACHABLE-C // RUN: %clang_cc1 -x c -fsanitize=pointer-overflow -fno-sanitize-recover=pointer-overflow -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_pointer_overflow" --allow-unused-prefixes=true -check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-ANYRECOVER,CHECK-SANITIZE-NORECOVER,CHECK-SANITIZE-UNREACHABLE,CHECK-SANITIZE-C,CHECK-SANITIZE-ANYRECOVER-C,CHECK-SANITIZE-NORECOVER-C,CHECK-SANITIZE-UNREACHABLE-C
// FIXME: automatically inserted -allow-unused-prefixes=true. Is the behavior intended?
// RUN: %clang_cc1 -x c++ -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s --check-prefixes=CHECK,CHECK-NOSANITIZE // RUN: %clang_cc1 -x c -fsanitize=pointer-overflow -fsanitize-recover=pointer-overflow -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_pointer_overflow" --allow-unused-prefixes=true -check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-ANYRECOVER,CHECK-SANITIZE-RECOVER,CHECK-SANITIZE-C,CHECK-SANITIZE-ANYRECOVER-C,CHECK-SANITIZE-RECOVER-C
// RUN: %clang_cc1 -x c++ -fsanitize=pointer-overflow -fno-sanitize-recover=pointer-overflow -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_pointer_overflow" --check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-ANYRECOVER,CHECK-SANITIZE-NORECOVER,CHECK-SANITIZE-UNREACHABLE,CHECK-SANITIZE-CPP,CHECK-SANITIZE-ANYRECOVER-CPP,CHECK-SANITIZE-NORECOVER-CPP,CHECK-SANITIZE-UNREACHABLE-CPP // FIXME: automatically inserted -allow-unused-prefixes=true. Is the behavior intended?
// RUN: %clang_cc1 -x c++ -fsanitize=pointer-overflow -fsanitize-recover=pointer-overflow -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_pointer_overflow" --check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-ANYRECOVER,CHECK-SANITIZE-RECOVER,CHECK-SANITIZE-CPP,CHECK-SANITIZE-ANYRECOVER-CPP,CHECK-SANITIZE-RECOVER-CPP // RUN: %clang_cc1 -x c -fsanitize=pointer-overflow -fsanitize-trap=pointer-overflow -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_pointer_overflow" --allow-unused-prefixes=true -check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-TRAP,CHECK-SANITIZE-UNREACHABLE,CHECK-SANITIZE-C,CHECK-SANITIZE-TRAP-C,CHECK-SANITIZE-UNREACHABLE-C
// RUN: %clang_cc1 -x c++ -fsanitize=pointer-overflow -fsanitize-trap=pointer-overflow -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_pointer_overflow" --check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-TRAP,CHECK-SANITIZE-UNREACHABLE,CHECK-SANITIZE-CPP,CHECK-SANITIZE-TRAP-CPP,CHECK-SANITIZE-UNREACHABLE-CPP
// FIXME: automatically inserted -allow-unused-prefixes=true. Is the behavior intended?
// RUN: %clang_cc1 -x c++ -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s --allow-unused-prefixes=true -check-prefixes=CHECK,CHECK-NOSANITIZE
// FIXME: automatically inserted -allow-unused-prefixes=true. Is the behavior intended?
// RUN: %clang_cc1 -x c++ -fsanitize=pointer-overflow -fno-sanitize-recover=pointer-overflow -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_pointer_overflow" --allow-unused-prefixes=true -check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-ANYRECOVER,CHECK-SANITIZE-NORECOVER,CHECK-SANITIZE-UNREACHABLE,CHECK-SANITIZE-CPP,CHECK-SANITIZE-ANYRECOVER-CPP,CHECK-SANITIZE-NORECOVER-CPP,CHECK-SANITIZE-UNREACHABLE-CPP
// FIXME: automatically inserted -allow-unused-prefixes=true. Is the behavior intended?
// RUN: %clang_cc1 -x c++ -fsanitize=pointer-overflow -fsanitize-recover=pointer-overflow -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_pointer_overflow" --allow-unused-prefixes=true -check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-ANYRECOVER,CHECK-SANITIZE-RECOVER,CHECK-SANITIZE-CPP,CHECK-SANITIZE-ANYRECOVER-CPP,CHECK-SANITIZE-RECOVER-CPP
// FIXME: automatically inserted -allow-unused-prefixes=true. Is the behavior intended?
// RUN: %clang_cc1 -x c++ -fsanitize=pointer-overflow -fsanitize-trap=pointer-overflow -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_pointer_overflow" --allow-unused-prefixes=true -check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-TRAP,CHECK-SANITIZE-UNREACHABLE,CHECK-SANITIZE-CPP,CHECK-SANITIZE-TRAP-CPP,CHECK-SANITIZE-UNREACHABLE-CPP
// In C++/LLVM IR, if the base pointer evaluates to a null pointer value, // In C++/LLVM IR, if the base pointer evaluates to a null pointer value,
// the only valid pointer this inbounds GEP can produce is also a null pointer. // the only valid pointer this inbounds GEP can produce is also a null pointer.
// Likewise, if we have non-zero base pointer, we can not get null pointer // Likewise, if we have non-zero base pointer, we can not get null pointer
// as a result, so the offset can not be -int(BasePtr). // as a result, so the offset can not be -int(BasePtr).
// So in other words, the offset can not change "null status" of the pointer, // So in other words, the offset can not change "null status" of the pointer,
// as in if the pointer was null, it can not become non-null, and vice versa, // as in if the pointer was null, it can not become non-null, and vice versa,
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