1 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fsanitize=unsigned-integer-overflow -fsanitize-recover=unsigned-integer-overflow %s -emit-llvm -o - | FileCheck %s --check-prefix=RECOVER 2 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fsanitize=unsigned-integer-overflow %s -emit-llvm -o - | FileCheck %s --check-prefix=ABORT 3 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fsanitize=null,object-size,alignment -fsanitize-recover=object-size %s -emit-llvm -o - | FileCheck %s --check-prefix=PARTIAL 4 5 // RECOVER: @test 6 // ABORT: @test 7 void test() { 8 extern volatile unsigned x, y, z; 9 10 // RECOVER: uadd.with.overflow.i32{{.*}}, !nosanitize 11 // RECOVER: ubsan_handle_add_overflow({{.*}}, !nosanitize 12 // RECOVER-NOT: unreachable 13 // ABORT: uadd.with.overflow.i32{{.*}}, !nosanitize 14 // ABORT: ubsan_handle_add_overflow_abort({{.*}}, !nosanitize 15 // ABORT: unreachable{{.*}}, !nosanitize 16 x = y + z; 17 } 18 19 void foo() { 20 union { int i; } u; 21 u.i=1; 22 // PARTIAL: %[[SIZE:.*]] = call i64 @llvm.objectsize.i64.p0i8(i8* {{.*}}, i1 false, i1 false) 23 // PARTIAL-NEXT: %[[CHECK0:.*]] = icmp uge i64 %[[SIZE]], 4 24 25 // PARTIAL: br i1 %[[CHECK0]], {{.*}} !nosanitize 26 27 // PARTIAL: call void @__ubsan_handle_type_mismatch_v1( 28 } 29