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// RUN: %clang -fsanitize=implicit-bitfield-conversion -target x86_64-linux -S -emit-llvm -o - %s | FileCheck %s --check-prefixes=CHECK,CHECK-BITFIELD-CONVERSION
// RUN: %clang -fsanitize=implicit-integer-conversion -target x86_64-linux -S -emit-llvm -o - %s | FileCheck %s --check-prefixes=CHECK
// RUN: %clang -fsanitize=implicit-conversion -target x86_64-linux -S -emit-llvm -o - %s | FileCheck %s --check-prefixes=CHECK,CHECK-BITFIELD-CONVERSION
typedef struct _xx {
int x1:3;
char x2:2;
} xx, *pxx;
xx vxx;
// CHECK-LABEL: define{{.*}} void @foo1
void foo1(int x) {
vxx.x1 = x;
// CHECK: store i8 %{{.*}}
// CHECK-NEXT: [[BFRESULTSHL:%.*]] = shl i8 {{.*}}, 5
// CHECK-NEXT: [[BFRESULTASHR:%.*]] = ashr i8 [[BFRESULTSHL]], 5
// CHECK-NEXT: [[BFRESULTCAST:%.*]] = sext i8 [[BFRESULTASHR]] to i32
// CHECK-BITFIELD-CONVERSION: call void @__ubsan_handle_implicit_conversion
// CHECK-BITFIELD-CONVERSION-NEXT: br label %[[CONT:.*]], !nosanitize
// CHECK-BITFIELD-CONVERSION: [[CONT]]:
// CHECK-NEXT: ret void
}
// CHECK-LABEL: define{{.*}} void @foo2
void foo2(int x) {
vxx.x2 = x;
// CHECK: store i8 %{{.*}}
// CHECK-NEXT: [[BFRESULTSHL:%.*]] = shl i8 {{.*}}, 6
// CHECK-NEXT: [[BFRESULTASHR:%.*]] = ashr i8 [[BFRESULTSHL]], 6
// CHECK-BITFIELD-CONVERSION: call void @__ubsan_handle_implicit_conversion
// CHECK-BITFIELD-CONVERSION-NEXT: br label %[[CONT:.*]], !nosanitize
// CHECK-BITFIELD-CONVERSION: [[CONT]]:
// CHECK-NEXT: ret void
}
// CHECK-LABEL: define{{.*}} void @foo3
void foo3() {
vxx.x1++;
// CHECK: store i8 %{{.*}}
// CHECK-NEXT: [[BFRESULTSHL:%.*]] = shl i8 {{.*}}, 5
// CHECK-NEXT: [[BFRESULTASHR:%.*]] = ashr i8 [[BFRESULTSHL]], 5
// CHECK-NEXT: [[BFRESULTCAST:%.*]] = sext i8 [[BFRESULTASHR]] to i32
// CHECK-BITFIELD-CONVERSION: call void @__ubsan_handle_implicit_conversion
// CHECK-BITFIELD-CONVERSION-NEXT: br label %[[CONT:.*]], !nosanitize
// CHECK-BITFIELD-CONVERSION: [[CONT]]:
// CHECK-NEXT: ret void
}
// CHECK-LABEL: define{{.*}} void @foo4
void foo4(int x) {
vxx.x1 += x;
// CHECK: store i8 %{{.*}}
// CHECK-NEXT: [[BFRESULTSHL:%.*]] = shl i8 {{.*}}, 5
// CHECK-NEXT: [[BFRESULTASHR:%.*]] = ashr i8 [[BFRESULTSHL]], 5
// CHECK-NEXT: [[BFRESULTCAST:%.*]] = sext i8 [[BFRESULTASHR]] to i32
// CHECK-BITFIELD-CONVERSION: call void @__ubsan_handle_implicit_conversion
// CHECK-BITFIELD-CONVERSION-NEXT: br label %[[CONT:.*]], !nosanitize
// CHECK-BITFIELD-CONVERSION: [[CONT]]:
// CHECK-NEXT: ret void
}
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