// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py UTC_ARGS: --version 2 // RUN: %clang_cc1 -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s // RUN: %clang_cc1 -fsanitize=alignment -fno-sanitize-recover=alignment -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_alignment_assumption" --check-prefixes=CHECK,CHECK-SANITIZE-NORECOVER // RUN: %clang_cc1 -fsanitize=alignment -fsanitize-recover=alignment -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_alignment_assumption" --check-prefixes=CHECK,CHECK-SANITIZE-RECOVER // RUN: %clang_cc1 -fsanitize=alignment -fsanitize-trap=alignment -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_alignment_assumption" --check-prefixes=CHECK,CHECK-SANITIZE-TRAP char **__attribute__((alloc_align(2))) // CHECK-LABEL: define dso_local noundef ptr @_Z11passthroughPPcm // CHECK-SAME: (ptr noundef [[X:%.*]], i64 noundef [[ALIGNMENT:%.*]]) #[[ATTR0:[0-9]+]] { // CHECK-NEXT: entry: // CHECK-NEXT: [[X_ADDR:%.*]] = alloca ptr, align 8 // CHECK-NEXT: [[ALIGNMENT_ADDR:%.*]] = alloca i64, align 8 // CHECK-NEXT: store ptr [[X]], ptr [[X_ADDR]], align 8 // CHECK-NEXT: store i64 [[ALIGNMENT]], ptr [[ALIGNMENT_ADDR]], align 8 // CHECK-NEXT: [[TMP0:%.*]] = load ptr, ptr [[X_ADDR]], align 8 // CHECK-NEXT: ret ptr [[TMP0]] // passthrough(char **x, unsigned long alignment) { return x; } // CHECK-SANITIZE-NORECOVER-LABEL: define dso_local noundef ptr @_Z6callerPPcm // CHECK-SANITIZE-NORECOVER-SAME: (ptr noundef [[X:%.*]], i64 noundef [[ALIGNMENT:%.*]]) #[[ATTR0]] { // CHECK-SANITIZE-NORECOVER-NEXT: entry: // CHECK-SANITIZE-NORECOVER-NEXT: [[X_ADDR:%.*]] = alloca ptr, align 8 // CHECK-SANITIZE-NORECOVER-NEXT: [[ALIGNMENT_ADDR:%.*]] = alloca i64, align 8 // CHECK-SANITIZE-NORECOVER-NEXT: store ptr [[X]], ptr [[X_ADDR]], align 8 // CHECK-SANITIZE-NORECOVER-NEXT: store i64 [[ALIGNMENT]], ptr [[ALIGNMENT_ADDR]], align 8 // CHECK-SANITIZE-NORECOVER-NEXT: [[TMP0:%.*]] = load ptr, ptr [[X_ADDR]], align 8 // CHECK-SANITIZE-NORECOVER-NEXT: [[TMP1:%.*]] = load i64, ptr [[ALIGNMENT_ADDR]], align 8 // CHECK-SANITIZE-NORECOVER-NEXT: [[CALL:%.*]] = call noundef ptr @_Z11passthroughPPcm(ptr noundef [[TMP0]], i64 noundef [[TMP1]]) // CHECK-SANITIZE-NORECOVER-NEXT: [[PTRINT:%.*]] = ptrtoint ptr [[CALL]] to i64 // CHECK-SANITIZE-NORECOVER-NEXT: [[TMP2:%.*]] = sub i64 [[TMP1]], 1 // CHECK-SANITIZE-NORECOVER-NEXT: [[MASKEDPTR:%.*]] = and i64 [[PTRINT]], [[TMP2]] // CHECK-SANITIZE-NORECOVER-NEXT: [[MASKCOND:%.*]] = icmp eq i64 [[MASKEDPTR]], 0 // CHECK-SANITIZE-NORECOVER-NEXT: [[TMP3:%.*]] = ptrtoint ptr [[CALL]] to i64, !nosanitize !2 // CHECK-SANITIZE-NORECOVER-NEXT: br i1 [[MASKCOND]], label [[CONT:%.*]], label [[HANDLER_ALIGNMENT_ASSUMPTION:%.*]], !prof [[PROF3:![0-9]+]], !nosanitize !2 // CHECK-SANITIZE-NORECOVER: handler.alignment_assumption: // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_alignment_assumption_abort(ptr @[[GLOB1:[0-9]+]], i64 [[TMP3]], i64 [[TMP1]], i64 0) #[[ATTR3:[0-9]+]], !nosanitize !2 // CHECK-SANITIZE-NORECOVER-NEXT: unreachable, !nosanitize !2 // CHECK-SANITIZE-NORECOVER: cont: // CHECK-SANITIZE-NORECOVER-NEXT: call void @llvm.assume(i1 true) [ "align"(ptr [[CALL]], i64 [[TMP1]]) ] // CHECK-SANITIZE-NORECOVER-NEXT: ret ptr [[CALL]] // // CHECK-SANITIZE-RECOVER-LABEL: define dso_local noundef ptr @_Z6callerPPcm // CHECK-SANITIZE-RECOVER-SAME: (ptr noundef [[X:%.*]], i64 noundef [[ALIGNMENT:%.*]]) #[[ATTR0]] { // CHECK-SANITIZE-RECOVER-NEXT: entry: // CHECK-SANITIZE-RECOVER-NEXT: [[X_ADDR:%.*]] = alloca ptr, align 8 // CHECK-SANITIZE-RECOVER-NEXT: [[ALIGNMENT_ADDR:%.*]] = alloca i64, align 8 // CHECK-SANITIZE-RECOVER-NEXT: store ptr [[X]], ptr [[X_ADDR]], align 8 // CHECK-SANITIZE-RECOVER-NEXT: store i64 [[ALIGNMENT]], ptr [[ALIGNMENT_ADDR]], align 8 // CHECK-SANITIZE-RECOVER-NEXT: [[TMP0:%.*]] = load ptr, ptr [[X_ADDR]], align 8 // CHECK-SANITIZE-RECOVER-NEXT: [[TMP1:%.*]] = load i64, ptr [[ALIGNMENT_ADDR]], align 8 // CHECK-SANITIZE-RECOVER-NEXT: [[CALL:%.*]] = call noundef ptr @_Z11passthroughPPcm(ptr noundef [[TMP0]], i64 noundef [[TMP1]]) // CHECK-SANITIZE-RECOVER-NEXT: [[PTRINT:%.*]] = ptrtoint ptr [[CALL]] to i64 // CHECK-SANITIZE-RECOVER-NEXT: [[TMP2:%.*]] = sub i64 [[TMP1]], 1 // CHECK-SANITIZE-RECOVER-NEXT: [[MASKEDPTR:%.*]] = and i64 [[PTRINT]], [[TMP2]] // CHECK-SANITIZE-RECOVER-NEXT: [[MASKCOND:%.*]] = icmp eq i64 [[MASKEDPTR]], 0 // CHECK-SANITIZE-RECOVER-NEXT: [[TMP3:%.*]] = ptrtoint ptr [[CALL]] to i64, !nosanitize !2 // CHECK-SANITIZE-RECOVER-NEXT: br i1 [[MASKCOND]], label [[CONT:%.*]], label [[HANDLER_ALIGNMENT_ASSUMPTION:%.*]], !prof [[PROF3:![0-9]+]], !nosanitize !2 // CHECK-SANITIZE-RECOVER: handler.alignment_assumption: // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_alignment_assumption(ptr @[[GLOB1:[0-9]+]], i64 [[TMP3]], i64 [[TMP1]], i64 0) #[[ATTR3:[0-9]+]], !nosanitize !2 // CHECK-SANITIZE-RECOVER-NEXT: br label [[CONT]], !nosanitize !2 // CHECK-SANITIZE-RECOVER: cont: // CHECK-SANITIZE-RECOVER-NEXT: call void @llvm.assume(i1 true) [ "align"(ptr [[CALL]], i64 [[TMP1]]) ] // CHECK-SANITIZE-RECOVER-NEXT: ret ptr [[CALL]] // // CHECK-SANITIZE-TRAP-LABEL: define dso_local noundef ptr @_Z6callerPPcm // CHECK-SANITIZE-TRAP-SAME: (ptr noundef [[X:%.*]], i64 noundef [[ALIGNMENT:%.*]]) #[[ATTR0]] { // CHECK-SANITIZE-TRAP-NEXT: entry: // CHECK-SANITIZE-TRAP-NEXT: [[X_ADDR:%.*]] = alloca ptr, align 8 // CHECK-SANITIZE-TRAP-NEXT: [[ALIGNMENT_ADDR:%.*]] = alloca i64, align 8 // CHECK-SANITIZE-TRAP-NEXT: store ptr [[X]], ptr [[X_ADDR]], align 8 // CHECK-SANITIZE-TRAP-NEXT: store i64 [[ALIGNMENT]], ptr [[ALIGNMENT_ADDR]], align 8 // CHECK-SANITIZE-TRAP-NEXT: [[TMP0:%.*]] = load ptr, ptr [[X_ADDR]], align 8 // CHECK-SANITIZE-TRAP-NEXT: [[TMP1:%.*]] = load i64, ptr [[ALIGNMENT_ADDR]], align 8 // CHECK-SANITIZE-TRAP-NEXT: [[CALL:%.*]] = call noundef ptr @_Z11passthroughPPcm(ptr noundef [[TMP0]], i64 noundef [[TMP1]]) // CHECK-SANITIZE-TRAP-NEXT: [[PTRINT:%.*]] = ptrtoint ptr [[CALL]] to i64 // CHECK-SANITIZE-TRAP-NEXT: [[TMP2:%.*]] = sub i64 [[TMP1]], 1 // CHECK-SANITIZE-TRAP-NEXT: [[MASKEDPTR:%.*]] = and i64 [[PTRINT]], [[TMP2]] // CHECK-SANITIZE-TRAP-NEXT: [[MASKCOND:%.*]] = icmp eq i64 [[MASKEDPTR]], 0 // CHECK-SANITIZE-TRAP-NEXT: [[TMP3:%.*]] = ptrtoint ptr [[CALL]] to i64, !nosanitize !2 // CHECK-SANITIZE-TRAP-NEXT: br i1 [[MASKCOND]], label [[CONT:%.*]], label [[TRAP:%.*]], !nosanitize !2 // CHECK-SANITIZE-TRAP: trap: // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.ubsantrap(i8 23) #[[ATTR3:[0-9]+]], !nosanitize !2 // CHECK-SANITIZE-TRAP-NEXT: unreachable, !nosanitize !2 // CHECK-SANITIZE-TRAP: cont: // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.assume(i1 true) [ "align"(ptr [[CALL]], i64 [[TMP1]]) ] // CHECK-SANITIZE-TRAP-NEXT: ret ptr [[CALL]] // char **caller(char **x, unsigned long alignment) { #line 100 return passthrough(x, alignment); }