clang/test/CodeGen/catch-alignment-assumption-openmp.cpp

   1 // RUN: %clang_cc1 -fopenmp-simd -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s
   2 // RUN: %clang_cc1 -fopenmp-simd -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,CHECK-SANITIZE-ANYRECOVER,CHECK-SANITIZE-NORECOVER,CHECK-SANITIZE-UNREACHABLE
   3 // RUN: %clang_cc1 -fopenmp-simd -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,CHECK-SANITIZE-ANYRECOVER,CHECK-SANITIZE-RECOVER
   4 // RUN: %clang_cc1 -fopenmp-simd -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,CHECK-SANITIZE-TRAP,CHECK-SANITIZE-UNREACHABLE
   5
   6 // CHECK-SANITIZE-ANYRECOVER: @[[CHAR:.*]] = {{.*}} c"'char *'\00" }
   7 // CHECK-SANITIZE-ANYRECOVER: @[[LINE_100_ALIGNMENT_ASSUMPTION:.*]] = {{.*}}, i32 100, i32 30 }, {{.*}} @[[CHAR]] }
   8
   9 void func(char *data) {
  10   // CHECK: define{{.*}} void @{{.*}}(ptr noundef %[[DATA:.*]])
  11   // CHECK-NEXT: [[ENTRY:.*]]:
  12   // CHECK-NEXT:   %[[DATA_ADDR:.*]] = alloca ptr, align 8
  13   // CHECK:   store ptr %[[DATA]], ptr %[[DATA_ADDR]], align 8
  14   // CHECK:   %[[DATA_RELOADED:.*]] = load ptr, ptr %[[DATA_ADDR]], align 8
  15   // CHECK-SANITIZE-NEXT:   %[[PTRINT:.*]] = ptrtoint ptr %[[DATA_RELOADED]] to i64
  16   // CHECK-SANITIZE-NEXT:   %[[MASKEDPTR:.*]] = and i64 %[[PTRINT]], 4294967295
  17   // CHECK-SANITIZE-NEXT:   %[[MASKCOND:.*]] = icmp eq i64 %[[MASKEDPTR]], 0
  18   // CHECK-SANITIZE-NEXT:               %[[PTRINT_DUP:.*]] = ptrtoint ptr %[[DATA_RELOADED]] to i64, !nosanitize
  19   // CHECK-SANITIZE-NEXT:               br i1 %[[MASKCOND]], label %[[CONT:.*]], label %[[HANDLER_ALIGNMENT_ASSUMPTION:[^,]+]],{{.*}} !nosanitize
  20   // CHECK-SANITIZE:                  [[HANDLER_ALIGNMENT_ASSUMPTION]]:
  21   // CHECK-SANITIZE-NORECOVER-NEXT:     call void @__ubsan_handle_alignment_assumption_abort(ptr @[[LINE_100_ALIGNMENT_ASSUMPTION]], i64 %[[PTRINT_DUP]], i64 4294967296, i64 0){{.*}}, !nosanitize
  22   // CHECK-SANITIZE-RECOVER-NEXT:       call void @__ubsan_handle_alignment_assumption(ptr @[[LINE_100_ALIGNMENT_ASSUMPTION]], i64 %[[PTRINT_DUP]], i64 4294967296, i64 0){{.*}}, !nosanitize
  23   // CHECK-SANITIZE-TRAP-NEXT:          call void @llvm.ubsantrap(i8 23){{.*}}, !nosanitize
  24   // CHECK-SANITIZE-UNREACHABLE-NEXT:   unreachable, !nosanitize
  25   // CHECK-SANITIZE:                  [[CONT]]:
  26   // CHECK-NEXT:                        call void @llvm.assume(i1 true) [ "align"(ptr %[[DATA_RELOADED]], i64 4294967296) ]
  27
  28 #line 100
  29 #pragma omp for simd aligned(data : 0x100000000)
  30   for (int x = 0; x < 1; x++)
  31     data[x] = data[x];
  32 }