3009228a09
Follow-up to discussion: https://github.com/llvm/llvm-project/pull/87761 As discussed after landing the original PR: Since fails could happen w.r.t. checking `!6`, these checks should be removed.
94 lines
4.1 KiB
C++
94 lines
4.1 KiB
C++
// RUN: %clang -x c++ -fsanitize=implicit-bitfield-conversion -target x86_64-linux -S -emit-llvm -o - %s | FileCheck %s --check-prefixes=CHECK,CHECK-BITFIELD-CONVERSION
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// RUN: %clang -x c++ -fsanitize=implicit-integer-conversion -target x86_64-linux -S -emit-llvm -o - %s | FileCheck %s --check-prefixes=CHECK
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// RUN: %clang -x c++ -fsanitize=implicit-conversion -target x86_64-linux -S -emit-llvm -o - %s | FileCheck %s --check-prefixes=CHECK,CHECK-BITFIELD-CONVERSION
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struct S {
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int a:3;
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char b:2;
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};
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class C : public S {
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public:
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short c:3;
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};
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S s;
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C c;
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// CHECK-LABEL: define{{.*}} void @{{.*foo1.*}}
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void foo1(int x) {
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s.a = x;
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// CHECK: store i8 %{{.*}}
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// CHECK-BITFIELD-CONVERSION: [[BFRESULTSHL:%.*]] = shl i8 {{.*}}, 5
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// CHECK-BITFIELD-CONVERSION-NEXT: [[BFRESULTASHR:%.*]] = ashr i8 [[BFRESULTSHL]], 5
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// CHECK-BITFIELD-CONVERSION-NEXT: [[BFRESULTCAST:%.*]] = sext i8 [[BFRESULTASHR]] to i32
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// CHECK-BITFIELD-CONVERSION: call void @__ubsan_handle_implicit_conversion
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// CHECK-BITFIELD-CONVERSION-NEXT: br label %[[CONT:.*]], !nosanitize
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c.a = x;
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// CHECK: store i8 %{{.*}}
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// CHECK-BITFIELD-CONVERSION: [[BFRESULTSHL:%.*]] = shl i8 {{.*}}, 5
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// CHECK-BITFIELD-CONVERSION-NEXT: [[BFRESULTASHR:%.*]] = ashr i8 [[BFRESULTSHL]], 5
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// CHECK-BITFIELD-CONVERSION-NEXT: [[BFRESULTCAST:%.*]] = sext i8 [[BFRESULTASHR]] to i32
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// CHECK-BITFIELD-CONVERSION: call void @__ubsan_handle_implicit_conversion
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// CHECK-BITFIELD-CONVERSION-NEXT: br label %[[CONT:.*]], !nosanitize
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// CHECK-BITFIELD-CONVERSION: [[CONT]]:
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// CHECK-NEXT: ret void
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}
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// CHECK-LABEL: define{{.*}} void @{{.*foo2.*}}
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void foo2(int x) {
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s.b = x;
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// CHECK: store i8 %{{.*}}
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// CHECK-BITFIELD-CONVERSION: [[BFRESULTSHL:%.*]] = shl i8 {{.*}}, 6
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// CHECK-BITFIELD-CONVERSION-NEXT: [[BFRESULTASHR:%.*]] = ashr i8 [[BFRESULTSHL]], 6
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// CHECK-BITFIELD-CONVERSION: call void @__ubsan_handle_implicit_conversion
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// CHECK-BITFIELD-CONVERSION-NEXT: br label %[[CONT:.*]], !nosanitize
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c.b = x;
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// CHECK: store i8 %{{.*}}
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// CHECK-BITFIELD-CONVERSION: [[BFRESULTSHL:%.*]] = shl i8 {{.*}}, 6
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// CHECK-BITFIELD-CONVERSION-NEXT: [[BFRESULTASHR:%.*]] = ashr i8 [[BFRESULTSHL]], 6
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// CHECK-BITFIELD-CONVERSION: call void @__ubsan_handle_implicit_conversion
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// CHECK-BITFIELD-CONVERSION-NEXT: br label %[[CONT:.*]], !nosanitize
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// CHECK-BITFIELD-CONVERSION: [[CONT]]:
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// CHECK-NEXT: ret void
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}
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// CHECK-LABEL: define{{.*}} void @{{.*foo3.*}}
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void foo3() {
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s.a++;
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// CHECK: store i8 %{{.*}}
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// CHECK-NEXT: [[BFRESULTSHL:%.*]] = shl i8 {{.*}}, 5
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// CHECK-NEXT: [[BFRESULTASHR:%.*]] = ashr i8 [[BFRESULTSHL]], 5
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// CHECK-NEXT: [[BFRESULTCAST:%.*]] = sext i8 [[BFRESULTASHR]] to i32
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// CHECK-BITFIELD-CONVERSION: call void @__ubsan_handle_implicit_conversion
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// CHECK-BITFIELD-CONVERSION-NEXT: br label %[[CONT:.*]], !nosanitize
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c.a++;
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// CHECK: store i8 %{{.*}}
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// CHECK-NEXT: [[BFRESULTSHL:%.*]] = shl i8 {{.*}}, 5
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// CHECK-NEXT: [[BFRESULTASHR:%.*]] = ashr i8 [[BFRESULTSHL]], 5
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// CHECK-NEXT: [[BFRESULTCAST:%.*]] = sext i8 [[BFRESULTASHR]] to i32
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// CHECK-BITFIELD-CONVERSION: call void @__ubsan_handle_implicit_conversion
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// CHECK-BITFIELD-CONVERSION-NEXT: br label %[[CONT:.*]], !nosanitize
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// CHECK-BITFIELD-CONVERSION: [[CONT]]:
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// CHECK-NEXT: ret void
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}
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// CHECK-LABEL: define{{.*}} void @{{.*foo4.*}}
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void foo4(int x) {
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s.a += x;
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// CHECK: store i8 %{{.*}}
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// CHECK-NEXT: [[BFRESULTSHL:%.*]] = shl i8 {{.*}}, 5
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// CHECK-NEXT: [[BFRESULTASHR:%.*]] = ashr i8 [[BFRESULTSHL]], 5
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// CHECK-NEXT: [[BFRESULTCAST:%.*]] = sext i8 [[BFRESULTASHR]] to i32
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// CHECK-BITFIELD-CONVERSION: call void @__ubsan_handle_implicit_conversion
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// CHECK-BITFIELD-CONVERSION-NEXT: br label %[[CONT:.*]], !nosanitize
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c.a += x;
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// CHECK: store i8 %{{.*}}
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// CHECK-NEXT: [[BFRESULTSHL:%.*]] = shl i8 {{.*}}, 5
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// CHECK-NEXT: [[BFRESULTASHR:%.*]] = ashr i8 [[BFRESULTSHL]], 5
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// CHECK-NEXT: [[BFRESULTCAST:%.*]] = sext i8 [[BFRESULTASHR]] to i32
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// CHECK-BITFIELD-CONVERSION: call void @__ubsan_handle_implicit_conversion
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// CHECK-BITFIELD-CONVERSION-NEXT: br label %[[CONT:.*]], !nosanitize
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// CHECK-BITFIELD-CONVERSION: [[CONT]]:
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// CHECK-NEXT: ret void
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} |