diff options
Diffstat (limited to 'test/CodeGen/catch-undef-behavior.c')
| -rw-r--r-- | test/CodeGen/catch-undef-behavior.c | 253 |
1 files changed, 221 insertions, 32 deletions
diff --git a/test/CodeGen/catch-undef-behavior.c b/test/CodeGen/catch-undef-behavior.c index 4198b62ea56c..ebe39feea434 100644 --- a/test/CodeGen/catch-undef-behavior.c +++ b/test/CodeGen/catch-undef-behavior.c @@ -1,14 +1,14 @@ -// RUN: %clang_cc1 -fsanitize=alignment,null,object-size,shift,return,signed-integer-overflow,vla-bound,float-cast-overflow,divide-by-zero -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s +// RUN: %clang_cc1 -fsanitize=alignment,null,object-size,shift,return,signed-integer-overflow,vla-bound,float-cast-overflow,integer-divide-by-zero,bool -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s +// RUN: %clang_cc1 -fsanitize-undefined-trap-on-error -fsanitize=alignment,null,object-size,shift,return,signed-integer-overflow,vla-bound,float-cast-overflow,integer-divide-by-zero,bool -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s --check-prefix=CHECK-TRAP // RUN: %clang_cc1 -fsanitize=null -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s --check-prefix=CHECK-NULL // RUN: %clang_cc1 -fsanitize=signed-integer-overflow -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s --check-prefix=CHECK-OVERFLOW // CHECK: @[[INT:.*]] = private unnamed_addr constant { i16, i16, [6 x i8] } { i16 0, i16 11, [6 x i8] c"'int'\00" } // FIXME: When we only emit each type once, use [[INT]] more below. -// CHECK: @[[LINE_100:.*]] = private unnamed_addr constant {{.*}}, i32 100, i32 5 {{.*}} @[[INT]], i64 4, i8 1 +// CHECK: @[[LINE_100:.*]] = private unnamed_addr global {{.*}}, i32 100, i32 5 {{.*}} @[[INT]], i64 4, i8 1 // CHECK: @[[LINE_200:.*]] = {{.*}}, i32 200, i32 10 {{.*}}, i64 4, i8 0 -// CHECK: @[[LINE_300_A:.*]] = {{.*}}, i32 300, i32 12 {{.*}} @{{.*}}, {{.*}} @{{.*}} -// CHECK: @[[LINE_300_B:.*]] = {{.*}}, i32 300, i32 12 {{.*}} @{{.*}}, {{.*}} @{{.*}} +// CHECK: @[[LINE_300:.*]] = {{.*}}, i32 300, i32 12 {{.*}} @{{.*}}, {{.*}} @{{.*}} // CHECK: @[[LINE_400:.*]] = {{.*}}, i32 400, i32 12 {{.*}} @{{.*}}, {{.*}} @{{.*}} // CHECK: @[[LINE_500:.*]] = {{.*}}, i32 500, i32 10 {{.*}} @{{.*}}, i64 4, i8 0 } // CHECK: @[[LINE_600:.*]] = {{.*}}, i32 600, i32 3 {{.*}} @{{.*}}, i64 4, i8 1 } @@ -19,49 +19,78 @@ // CHECK: @[[LINE_800:.*]] = {{.*}}, i32 800, i32 12 {{.*}} @{{.*}} } // CHECK: @[[LINE_900:.*]] = {{.*}}, i32 900, i32 11 {{.*}} @{{.*}} } -// CHECK-NULL: @[[LINE_100:.*]] = private unnamed_addr constant {{.*}}, i32 100, i32 5 {{.*}} +// CHECK-NULL: @[[LINE_100:.*]] = private unnamed_addr global {{.*}}, i32 100, i32 5 {{.*}} // PR6805 // CHECK: @foo // CHECK-NULL: @foo +// CHECK-TRAP: @foo void foo() { union { int i; } u; // CHECK: %[[CHECK0:.*]] = icmp ne {{.*}}* %[[PTR:.*]], null + // CHECK-TRAP: %[[CHECK0:.*]] = icmp ne {{.*}}* %[[PTR:.*]], null // CHECK: %[[I8PTR:.*]] = bitcast i32* %[[PTR]] to i8* // CHECK-NEXT: %[[SIZE:.*]] = call i64 @llvm.objectsize.i64(i8* %[[I8PTR]], i1 false) // CHECK-NEXT: %[[CHECK1:.*]] = icmp uge i64 %[[SIZE]], 4 // CHECK-NEXT: %[[CHECK01:.*]] = and i1 %[[CHECK0]], %[[CHECK1]] + // CHECK-TRAP: %[[I8PTR:.*]] = bitcast i32* %[[PTR]] to i8* + // CHECK-TRAP-NEXT: %[[SIZE:.*]] = call i64 @llvm.objectsize.i64(i8* %[[I8PTR]], i1 false) + // CHECK-TRAP-NEXT: %[[CHECK1:.*]] = icmp uge i64 %[[SIZE]], 4 + // CHECK-TRAP-NEXT: %[[CHECK01:.*]] = and i1 %[[CHECK0]], %[[CHECK1]] + // CHECK: %[[PTRTOINT:.*]] = ptrtoint {{.*}}* %[[PTR]] to i64 // CHECK-NEXT: %[[MISALIGN:.*]] = and i64 %[[PTRTOINT]], 3 // CHECK-NEXT: %[[CHECK2:.*]] = icmp eq i64 %[[MISALIGN]], 0 + // CHECK-TRAP: %[[PTRTOINT:.*]] = ptrtoint {{.*}}* %[[PTR]] to i64 + // CHECK-TRAP-NEXT: %[[MISALIGN:.*]] = and i64 %[[PTRTOINT]], 3 + // CHECK-TRAP-NEXT: %[[CHECK2:.*]] = icmp eq i64 %[[MISALIGN]], 0 + // CHECK: %[[OK:.*]] = and i1 %[[CHECK01]], %[[CHECK2]] - // CHECK-NEXT: br i1 %[[OK]] + // CHECK-NEXT: br i1 %[[OK]], {{.*}} !prof ![[WEIGHT_MD:.*]] + + // CHECK-TRAP: %[[OK:.*]] = and i1 %[[CHECK01]], %[[CHECK2]] + // CHECK-TRAP-NEXT: br i1 %[[OK]], {{.*}} // CHECK: %[[ARG:.*]] = ptrtoint {{.*}} %[[PTR]] to i64 - // CHECK-NEXT: call void @__ubsan_handle_type_mismatch(i8* bitcast ({{.*}} @[[LINE_100]] to i8*), i64 %[[ARG]]) noreturn nounwind + // CHECK-NEXT: call void @__ubsan_handle_type_mismatch(i8* bitcast ({{.*}} @[[LINE_100]] to i8*), i64 %[[ARG]]) + + // CHECK-TRAP: call void @llvm.trap() [[NR_NUW:#[0-9]+]] + // CHECK-TRAP-NEXT: unreachable // With -fsanitize=null, only perform the null check. // CHECK-NULL: %[[NULL:.*]] = icmp ne {{.*}}, null // CHECK-NULL: br i1 %[[NULL]] - // CHECK-NULL: call void @__ubsan_handle_type_mismatch(i8* bitcast ({{.*}} @[[LINE_100]] to i8*), i64 %{{.*}}) noreturn nounwind + // CHECK-NULL: call void @__ubsan_handle_type_mismatch(i8* bitcast ({{.*}} @[[LINE_100]] to i8*), i64 %{{.*}}) #line 100 u.i=1; } // CHECK: @bar +// CHECK-TRAP: @bar int bar(int *a) { // CHECK: %[[SIZE:.*]] = call i64 @llvm.objectsize.i64 // CHECK-NEXT: icmp uge i64 %[[SIZE]], 4 + // CHECK-TRAP: %[[SIZE:.*]] = call i64 @llvm.objectsize.i64 + // CHECK-TRAP-NEXT: icmp uge i64 %[[SIZE]], 4 + // CHECK: %[[PTRINT:.*]] = ptrtoint // CHECK-NEXT: %[[MISALIGN:.*]] = and i64 %[[PTRINT]], 3 // CHECK-NEXT: icmp eq i64 %[[MISALIGN]], 0 + // CHECK-TRAP: %[[PTRINT:.*]] = ptrtoint + // CHECK-TRAP-NEXT: %[[MISALIGN:.*]] = and i64 %[[PTRINT]], 3 + // CHECK-TRAP-NEXT: icmp eq i64 %[[MISALIGN]], 0 + // CHECK: %[[ARG:.*]] = ptrtoint - // CHECK-NEXT: call void @__ubsan_handle_type_mismatch(i8* bitcast ({{.*}} @[[LINE_200]] to i8*), i64 %[[ARG]]) noreturn nounwind + // CHECK-NEXT: call void @__ubsan_handle_type_mismatch(i8* bitcast ({{.*}} @[[LINE_200]] to i8*), i64 %[[ARG]]) + + // CHECK-TRAP: call void @llvm.trap() [[NR_NUW]] + // CHECK-TRAP-NEXT: unreachable + #line 200 return *a; } @@ -73,55 +102,92 @@ int addr_space(int __attribute__((address_space(256))) *a) { } // CHECK: @lsh_overflow +// CHECK-TRAP: @lsh_overflow int lsh_overflow(int a, int b) { // CHECK: %[[INBOUNDS:.*]] = icmp ule i32 %[[RHS:.*]], 31 - // CHECK-NEXT: br i1 %[[INBOUNDS]] + // CHECK-NEXT: br i1 %[[INBOUNDS]], label %[[CHECKBB:.*]], label %[[CONTBB:.*]] - // FIXME: Only emit one trap block here. - // CHECK: %[[ARG1:.*]] = zext - // CHECK-NEXT: %[[ARG2:.*]] = zext - // CHECK-NEXT: call void @__ubsan_handle_shift_out_of_bounds(i8* bitcast ({{.*}} @[[LINE_300_A]] to i8*), i64 %[[ARG1]], i64 %[[ARG2]]) noreturn nounwind + // CHECK-TRAP: %[[INBOUNDS:.*]] = icmp ule i32 %[[RHS:.*]], 31 + // CHECK-TRAP-NEXT: br i1 %[[INBOUNDS]], label %[[CHECKBB:.*]], label %[[CONTBB:.*]] // CHECK: %[[SHIFTED_OUT_WIDTH:.*]] = sub nuw nsw i32 31, %[[RHS]] // CHECK-NEXT: %[[SHIFTED_OUT:.*]] = lshr i32 %[[LHS:.*]], %[[SHIFTED_OUT_WIDTH]] // CHECK-NEXT: %[[NO_OVERFLOW:.*]] = icmp eq i32 %[[SHIFTED_OUT]], 0 - // CHECK-NEXT: br i1 %[[NO_OVERFLOW]] + // CHECK-NEXT: br label %[[CONTBB]] + + // CHECK-TRAP: %[[SHIFTED_OUT_WIDTH:.*]] = sub nuw nsw i32 31, %[[RHS]] + // CHECK-TRAP-NEXT: %[[SHIFTED_OUT:.*]] = lshr i32 %[[LHS:.*]], %[[SHIFTED_OUT_WIDTH]] + // CHECK-TRAP-NEXT: %[[NO_OVERFLOW:.*]] = icmp eq i32 %[[SHIFTED_OUT]], 0 + // CHECK-TRAP-NEXT: br label %[[CONTBB]] + + // CHECK: %[[VALID:.*]] = phi i1 [ %[[INBOUNDS]], {{.*}} ], [ %[[NO_OVERFLOW]], %[[CHECKBB]] ] + // CHECK-NEXT: br i1 %[[VALID]], {{.*}} !prof ![[WEIGHT_MD]] + + // CHECK-TRAP: %[[VALID:.*]] = phi i1 [ %[[INBOUNDS]], {{.*}} ], [ %[[NO_OVERFLOW]], %[[CHECKBB]] ] + // CHECK-TRAP-NEXT: br i1 %[[VALID]] + // CHECK: %[[ARG1:.*]] = zext // CHECK-NEXT: %[[ARG2:.*]] = zext - // CHECK-NEXT: call void @__ubsan_handle_shift_out_of_bounds(i8* bitcast ({{.*}} @[[LINE_300_B]] to i8*), i64 %[[ARG1]], i64 %[[ARG2]]) noreturn nounwind + // CHECK-NEXT: call void @__ubsan_handle_shift_out_of_bounds(i8* bitcast ({{.*}} @[[LINE_300]] to i8*), i64 %[[ARG1]], i64 %[[ARG2]]) + // CHECK-NOT: call void @__ubsan_handle_shift_out_of_bounds + + // CHECK-TRAP: call void @llvm.trap() [[NR_NUW]] + // CHECK-TRAP: unreachable + // CHECK-TRAP-NOT: call void @llvm.trap() // CHECK: %[[RET:.*]] = shl i32 %[[LHS]], %[[RHS]] // CHECK-NEXT: ret i32 %[[RET]] + + // CHECK-TRAP: %[[RET:.*]] = shl i32 %[[LHS]], %[[RHS]] + // CHECK-TRAP-NEXT: ret i32 %[[RET]] #line 300 return a << b; } // CHECK: @rsh_inbounds +// CHECK-TRAP: @rsh_inbounds int rsh_inbounds(int a, int b) { - // CHECK: %[[INBOUNDS:.*]] = icmp ult i32 %[[RHS:.*]], 32 + // CHECK: %[[INBOUNDS:.*]] = icmp ule i32 %[[RHS:.*]], 31 // CHECK: br i1 %[[INBOUNDS]] + // CHECK-TRAP: %[[INBOUNDS:.*]] = icmp ule i32 %[[RHS:.*]], 31 + // CHECK-TRAP: br i1 %[[INBOUNDS]] + // CHECK: %[[ARG1:.*]] = zext // CHECK-NEXT: %[[ARG2:.*]] = zext - // CHECK-NEXT: call void @__ubsan_handle_shift_out_of_bounds(i8* bitcast ({{.*}} @[[LINE_400]] to i8*), i64 %[[ARG1]], i64 %[[ARG2]]) noreturn nounwind + // CHECK-NEXT: call void @__ubsan_handle_shift_out_of_bounds(i8* bitcast ({{.*}} @[[LINE_400]] to i8*), i64 %[[ARG1]], i64 %[[ARG2]]) + + // CHECK-TRAP: call void @llvm.trap() [[NR_NUW]] + // CHECK-TRAP-NEXT: unreachable // CHECK: %[[RET:.*]] = ashr i32 %[[LHS]], %[[RHS]] // CHECK-NEXT: ret i32 %[[RET]] + + // CHECK-TRAP: %[[RET:.*]] = ashr i32 %[[LHS]], %[[RHS]] + // CHECK-TRAP-NEXT: ret i32 %[[RET]] #line 400 return a >> b; } // CHECK: @load +// CHECK-TRAP: @load int load(int *p) { - // CHECK: call void @__ubsan_handle_type_mismatch(i8* bitcast ({{.*}} @[[LINE_500]] to i8*), i64 %{{.*}}) noreturn nounwind + // CHECK: call void @__ubsan_handle_type_mismatch(i8* bitcast ({{.*}} @[[LINE_500]] to i8*), i64 %{{.*}}) + + // CHECK-TRAP: call void @llvm.trap() [[NR_NUW]] + // CHECK-TRAP-NEXT: unreachable #line 500 return *p; } // CHECK: @store +// CHECK-TRAP: @store void store(int *p, int q) { - // CHECK: call void @__ubsan_handle_type_mismatch(i8* bitcast ({{.*}} @[[LINE_600]] to i8*), i64 %{{.*}}) noreturn nounwind + // CHECK: call void @__ubsan_handle_type_mismatch(i8* bitcast ({{.*}} @[[LINE_600]] to i8*), i64 %{{.*}}) + + // CHECK-TRAP: call void @llvm.trap() [[NR_NUW]] + // CHECK-TRAP-NEXT: unreachable #line 600 *p = q; } @@ -129,22 +195,31 @@ void store(int *p, int q) { struct S { int k; }; // CHECK: @member_access +// CHECK-TRAP: @member_access int *member_access(struct S *p) { - // CHECK: call void @__ubsan_handle_type_mismatch(i8* bitcast ({{.*}} @[[LINE_700]] to i8*), i64 %{{.*}}) noreturn nounwind + // CHECK: call void @__ubsan_handle_type_mismatch(i8* bitcast ({{.*}} @[[LINE_700]] to i8*), i64 %{{.*}}) + + // CHECK-TRAP: call void @llvm.trap() [[NR_NUW]] + // CHECK-TRAP-NEXT: unreachable #line 700 return &p->k; } // CHECK: @signed_overflow +// CHECK-TRAP: @signed_overflow int signed_overflow(int a, int b) { // CHECK: %[[ARG1:.*]] = zext // CHECK-NEXT: %[[ARG2:.*]] = zext - // CHECK-NEXT: call void @__ubsan_handle_add_overflow(i8* bitcast ({{.*}} @[[LINE_800]] to i8*), i64 %[[ARG1]], i64 %[[ARG2]]) noreturn nounwind + // CHECK-NEXT: call void @__ubsan_handle_add_overflow(i8* bitcast ({{.*}} @[[LINE_800]] to i8*), i64 %[[ARG1]], i64 %[[ARG2]]) + + // CHECK-TRAP: call void @llvm.trap() [[NR_NUW]] + // CHECK-TRAP-NEXT: unreachable #line 800 return a + b; } // CHECK: @no_return +// CHECK-TRAP: @no_return int no_return() { // Reaching the end of a noreturn function is fine in C. // FIXME: If the user explicitly requests -fsanitize=return, we should catch @@ -152,6 +227,10 @@ int no_return() { // CHECK-NOT: call // CHECK-NOT: unreachable // CHECK: ret i32 + + // CHECK-TRAP-NOT: call + // CHECK-TRAP-NOT: unreachable + // CHECK-TRAP: ret i32 } // CHECK: @vla_bound @@ -159,7 +238,7 @@ void vla_bound(int n) { // CHECK: icmp sgt i32 %[[PARAM:.*]], 0 // // CHECK: %[[ARG:.*]] = zext i32 %[[PARAM]] to i64 - // CHECK-NEXT: call void @__ubsan_handle_vla_bound_not_positive(i8* bitcast ({{.*}} @[[LINE_900]] to i8*), i64 %[[ARG]]) noreturn nounwind + // CHECK-NEXT: call void @__ubsan_handle_vla_bound_not_positive(i8* bitcast ({{.*}} @[[LINE_900]] to i8*), i64 %[[ARG]]) #line 900 int arr[n * 3]; } @@ -171,55 +250,135 @@ float int_float_no_overflow(__int128 n) { } // CHECK: @int_float_overflow +// CHECK-TRAP: @int_float_overflow float int_float_overflow(unsigned __int128 n) { // This is 2**104. FLT_MAX is 2**128 - 2**104. // CHECK: icmp ule i128 %{{.*}}, -20282409603651670423947251286016 // CHECK: call void @__ubsan_handle_float_cast_overflow( + + // CHECK-TRAP: %[[INBOUNDS:.*]] = icmp ule i128 %{{.*}}, -20282409603651670423947251286016 + // CHECK-TRAP-NEXT: br i1 %[[INBOUNDS]] + + // CHECK-TRAP: call void @llvm.trap() [[NR_NUW]] + // CHECK-TRAP-NEXT: unreachable return n; } // CHECK: @int_fp16_overflow +// CHECK-TRAP: @int_fp16_overflow void int_fp16_overflow(int n, __fp16 *p) { // CHECK: %[[GE:.*]] = icmp sge i32 %{{.*}}, -65504 // CHECK: %[[LE:.*]] = icmp sle i32 %{{.*}}, 65504 // CHECK: and i1 %[[GE]], %[[LE]] // CHECK: call void @__ubsan_handle_float_cast_overflow( + + // CHECK-TRAP: %[[GE:.*]] = icmp sge i32 %{{.*}}, -65504 + // CHECK-TRAP: %[[LE:.*]] = icmp sle i32 %{{.*}}, 65504 + // CHECK-TRAP: %[[INBOUNDS:.*]] = and i1 %[[GE]], %[[LE]] + // CHECK-TRAP-NEXT: br i1 %[[INBOUNDS]] + + // CHECK-TRAP: call void @llvm.trap() [[NR_NUW]] + // CHECK-TRAP-NEXT: unreachable *p = n; } // CHECK: @float_int_overflow +// CHECK-TRAP: @float_int_overflow int float_int_overflow(float f) { - // CHECK: %[[GE:.*]] = fcmp oge float %[[F:.*]], 0xC1E0000000000000 - // CHECK: %[[LE:.*]] = fcmp ole float %[[F]], 0x41DFFFFFE0000000 + // CHECK: %[[GE:.*]] = fcmp ogt float %[[F:.*]], 0xC1E0000020000000 + // CHECK: %[[LE:.*]] = fcmp olt float %[[F]], 0x41E0000000000000 // CHECK: and i1 %[[GE]], %[[LE]] - // CHECK: call void @__ubsan_handle_float_cast_overflow( + + // CHECK: %[[CAST:.*]] = bitcast float %[[F]] to i32 + // CHECK: %[[ARG:.*]] = zext i32 %[[CAST]] to i64 + // CHECK: call void @__ubsan_handle_float_cast_overflow({{.*}}, i64 %[[ARG]] + + // CHECK-TRAP: %[[GE:.*]] = fcmp ogt float %[[F:.*]], 0xC1E0000020000000 + // CHECK-TRAP: %[[LE:.*]] = fcmp olt float %[[F]], 0x41E0000000000000 + // CHECK-TRAP: %[[INBOUNDS:.*]] = and i1 %[[GE]], %[[LE]] + // CHECK-TRAP-NEXT: br i1 %[[INBOUNDS]] + + // CHECK-TRAP: call void @llvm.trap() [[NR_NUW]] + // CHECK-TRAP-NEXT: unreachable return f; } +// CHECK: @long_double_int_overflow +// CHECK-TRAP: @long_double_int_overflow +int long_double_int_overflow(long double ld) { + // CHECK: alloca x86_fp80 + // CHECK: %[[GE:.*]] = fcmp ogt x86_fp80 %[[F:.*]], 0xKC01E8000000100000000 + // CHECK: %[[LE:.*]] = fcmp olt x86_fp80 %[[F]], 0xK401E8000000000000000 + // CHECK: and i1 %[[GE]], %[[LE]] + + // CHECK: store x86_fp80 %[[F]], x86_fp80* %[[ALLOCA:.*]] + // CHECK: %[[ARG:.*]] = ptrtoint x86_fp80* %[[ALLOCA]] to i64 + // CHECK: call void @__ubsan_handle_float_cast_overflow({{.*}}, i64 %[[ARG]] + + // CHECK-TRAP: %[[GE:.*]] = fcmp ogt x86_fp80 %[[F:.*]], 0xKC01E800000010000000 + // CHECK-TRAP: %[[LE:.*]] = fcmp olt x86_fp80 %[[F]], 0xK401E800000000000000 + // CHECK-TRAP: %[[INBOUNDS:.*]] = and i1 %[[GE]], %[[LE]] + // CHECK-TRAP-NEXT: br i1 %[[INBOUNDS]] + + // CHECK-TRAP: call void @llvm.trap() [[NR_NUW]] + // CHECK-TRAP-NEXT: unreachable + return ld; +} + // CHECK: @float_uint_overflow +// CHECK-TRAP: @float_uint_overflow unsigned float_uint_overflow(float f) { - // CHECK: %[[GE:.*]] = fcmp oge float %[[F:.*]], 0.{{0*}}e+00 - // CHECK: %[[LE:.*]] = fcmp ole float %[[F]], 0x41EFFFFFE0000000 + // CHECK: %[[GE:.*]] = fcmp ogt float %[[F:.*]], -1.{{0*}}e+00 + // CHECK: %[[LE:.*]] = fcmp olt float %[[F]], 0x41F0000000000000 // CHECK: and i1 %[[GE]], %[[LE]] // CHECK: call void @__ubsan_handle_float_cast_overflow( + + // CHECK-TRAP: %[[GE:.*]] = fcmp ogt float %[[F:.*]], -1.{{0*}}e+00 + // CHECK-TRAP: %[[LE:.*]] = fcmp olt float %[[F]], 0x41F0000000000000 + // CHECK-TRAP: %[[INBOUNDS:.*]] = and i1 %[[GE]], %[[LE]] + // CHECK-TRAP-NEXT: br i1 %[[INBOUNDS]] + + // CHECK-TRAP: call void @llvm.trap() [[NR_NUW]] + // CHECK-TRAP-NEXT: unreachable return f; } // CHECK: @fp16_char_overflow +// CHECK-TRAP: @fp16_char_overflow signed char fp16_char_overflow(__fp16 *p) { - // CHECK: %[[GE:.*]] = fcmp oge float %[[F:.*]], -1.28{{0*}}e+02 - // CHECK: %[[LE:.*]] = fcmp ole float %[[F]], 1.27{{0*}}e+02 + // CHECK: %[[GE:.*]] = fcmp ogt float %[[F:.*]], -1.29{{0*}}e+02 + // CHECK: %[[LE:.*]] = fcmp olt float %[[F]], 1.28{{0*}}e+02 // CHECK: and i1 %[[GE]], %[[LE]] // CHECK: call void @__ubsan_handle_float_cast_overflow( + + // CHECK-TRAP: %[[GE:.*]] = fcmp ogt float %[[F:.*]], -1.29{{0*}}e+02 + // CHECK-TRAP: %[[LE:.*]] = fcmp olt float %[[F]], 1.28{{0*}}e+02 + // CHECK-TRAP: %[[INBOUNDS:.*]] = and i1 %[[GE]], %[[LE]] + // CHECK-TRAP-NEXT: br i1 %[[INBOUNDS]] + + // CHECK-TRAP: call void @llvm.trap() [[NR_NUW]] + // CHECK-TRAP-NEXT: unreachable return *p; } // CHECK: @float_float_overflow +// CHECK-TRAP: @float_float_overflow float float_float_overflow(double f) { - // CHECK: %[[GE:.*]] = fcmp oge double %[[F:.*]], 0xC7EFFFFFE0000000 - // CHECK: %[[LE:.*]] = fcmp ole double %[[F]], 0x47EFFFFFE0000000 + // CHECK: %[[F:.*]] = call double @llvm.fabs.f64( + // CHECK: %[[GE:.*]] = fcmp ogt double %[[F]], 0x47EFFFFFE0000000 + // CHECK: %[[LE:.*]] = fcmp olt double %[[F]], 0x7FF0000000000000 // CHECK: and i1 %[[GE]], %[[LE]] // CHECK: call void @__ubsan_handle_float_cast_overflow( + + // CHECK-TRAP: %[[F:.*]] = call double @llvm.fabs.f64( + // CHECK-TRAP: %[[GE:.*]] = fcmp ogt double %[[F]], 0x47EFFFFFE0000000 + // CHECK-TRAP: %[[LE:.*]] = fcmp olt double %[[F]], 0x7FF0000000000000 + // CHECK-TRAP: %[[OUTOFBOUNDS:.*]] = and i1 %[[GE]], %[[LE]] + // CHECK-TRAP: %[[INBOUNDS:.*]] = xor i1 %[[OUTOFBOUNDS]], true + // CHECK-TRAP-NEXT: br i1 %[[INBOUNDS]] + + // CHECK-TRAP: call void @llvm.trap() [[NR_NUW]] + // CHECK-TRAP-NEXT: unreachable return f; } @@ -228,6 +387,7 @@ float float_float_overflow(double f) { int int_divide_overflow(int a, int b) { // CHECK: %[[ZERO:.*]] = icmp ne i32 %[[B:.*]], 0 // CHECK-OVERFLOW-NOT: icmp ne i32 %{{.*}}, 0 + // CHECK-TRAP: %[[ZERO:.*]] = icmp ne i32 %[[B:.*]], 0 // CHECK: %[[AOK:.*]] = icmp ne i32 %[[A:.*]], -2147483648 // CHECK-NEXT: %[[BOK:.*]] = icmp ne i32 %[[B]], -1 @@ -237,12 +397,41 @@ int int_divide_overflow(int a, int b) { // CHECK-OVERFLOW-NEXT: %[[BOK:.*]] = icmp ne i32 %[[B:.*]], -1 // CHECK-OVERFLOW-NEXT: %[[OK:.*]] = or i1 %[[AOK]], %[[BOK]] + // CHECK-TRAP: %[[AOK:.*]] = icmp ne i32 %[[A:.*]], -2147483648 + // CHECK-TRAP-NEXT: %[[BOK:.*]] = icmp ne i32 %[[B]], -1 + // CHECK-TRAP-NEXT: %[[OVER:.*]] = or i1 %[[AOK]], %[[BOK]] + // CHECK: %[[OK:.*]] = and i1 %[[ZERO]], %[[OVER]] // CHECK: br i1 %[[OK]] // CHECK-OVERFLOW: br i1 %[[OK]] + + // CHECK-TRAP: %[[OK:.*]] = and i1 %[[ZERO]], %[[OVER]] + // CHECK-TRAP: br i1 %[[OK]] + + // CHECK-TRAP: call void @llvm.trap() [[NR_NUW]] + // CHECK-TRAP: unreachable return a / b; // CHECK: } // CHECK-OVERFLOW: } + // CHECK-TRAP: } } + +// CHECK: @sour_bool +_Bool sour_bool(_Bool *p) { + // CHECK: %[[OK:.*]] = icmp ule i8 {{.*}}, 1 + // CHECK: br i1 %[[OK]] + // CHECK: call void @__ubsan_handle_load_invalid_value(i8* bitcast ({{.*}}), i64 {{.*}}) + + // CHECK-TRAP: %[[OK:.*]] = icmp ule i8 {{.*}}, 1 + // CHECK-TRAP: br i1 %[[OK]] + + // CHECK-TRAP: call void @llvm.trap() [[NR_NUW]] + // CHECK-TRAP: unreachable + return *p; +} + +// CHECK: ![[WEIGHT_MD]] = metadata !{metadata !"branch_weights", i32 1048575, i32 1} + +// CHECK-TRAP: attributes [[NR_NUW]] = { noreturn nounwind } |