494 lines
16 KiB
C
494 lines
16 KiB
C
// RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm -O0 %s -o - 2>&1 | FileCheck %s
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typedef unsigned long size_t;
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struct Foo {
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int t[10];
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};
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#define PS(N) __attribute__((pass_object_size(N)))
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#define PDS(N) __attribute__((pass_dynamic_object_size(N)))
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int gi = 0;
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// CHECK-LABEL: define i32 @ObjectSize0(i8* %{{.*}}, i64 %0)
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int ObjectSize0(void *const p PS(0)) {
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// CHECK-NOT: @llvm.objectsize
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return __builtin_object_size(p, 0);
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}
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// CHECK-LABEL: define i32 @DynamicObjectSize0(i8* %{{.*}}, i64 %0)
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int DynamicObjectSize0(void *const p PDS(0)) {
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// CHECK-NOT: @llvm.objectsize
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return __builtin_dynamic_object_size(p, 0);
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}
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// CHECK-LABEL: define i32 @ObjectSize1(i8* %{{.*}}, i64 %0)
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int ObjectSize1(void *const p PS(1)) {
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// CHECK-NOT: @llvm.objectsize
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return __builtin_object_size(p, 1);
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}
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// CHECK-LABEL: define i32 @DynamicObjectSize1(i8* %{{.*}}, i64 %0)
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int DynamicObjectSize1(void *const p PDS(1)) {
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// CHECK-NOT: @llvm.objectsize
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return __builtin_dynamic_object_size(p, 1);
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}
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// CHECK-LABEL: define i32 @ObjectSize2(i8* %{{.*}}, i64 %0)
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int ObjectSize2(void *const p PS(2)) {
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// CHECK-NOT: @llvm.objectsize
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return __builtin_object_size(p, 2);
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}
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// CHECK-LABEL: define i32 @DynamicObjectSize2(i8* %{{.*}}, i64 %0)
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int DynamicObjectSize2(void *const p PDS(2)) {
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// CHECK-NOT: @llvm.objectsize
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return __builtin_object_size(p, 2);
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}
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// CHECK-LABEL: define i32 @ObjectSize3(i8* %{{.*}}, i64 %0)
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int ObjectSize3(void *const p PS(3)) {
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// CHECK-NOT: @llvm.objectsize
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return __builtin_object_size(p, 3);
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}
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// CHECK-LABEL: define i32 @DynamicObjectSize3(i8* %{{.*}}, i64 %0)
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int DynamicObjectSize3(void *const p PDS(3)) {
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// CHECK-NOT: @llvm.objectsize
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return __builtin_object_size(p, 3);
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}
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void *malloc(unsigned long) __attribute__((alloc_size(1)));
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// CHECK-LABEL: define void @test1
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void test1(unsigned long sz) {
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struct Foo t[10];
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// CHECK: call i32 @ObjectSize0(i8* %{{.*}}, i64 360)
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gi = ObjectSize0(&t[1]);
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// CHECK: call i32 @ObjectSize1(i8* %{{.*}}, i64 360)
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gi = ObjectSize1(&t[1]);
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// CHECK: call i32 @ObjectSize2(i8* %{{.*}}, i64 360)
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gi = ObjectSize2(&t[1]);
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// CHECK: call i32 @ObjectSize3(i8* %{{.*}}, i64 360)
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gi = ObjectSize3(&t[1]);
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// CHECK: call i32 @ObjectSize0(i8* %{{.*}}, i64 356)
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gi = ObjectSize0(&t[1].t[1]);
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// CHECK: call i32 @ObjectSize1(i8* %{{.*}}, i64 36)
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gi = ObjectSize1(&t[1].t[1]);
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// CHECK: call i32 @ObjectSize2(i8* %{{.*}}, i64 356)
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gi = ObjectSize2(&t[1].t[1]);
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// CHECK: call i32 @ObjectSize3(i8* %{{.*}}, i64 36)
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gi = ObjectSize3(&t[1].t[1]);
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char *ptr = (char *)malloc(sz);
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// CHECK: [[REG:%.*]] = call i64 @llvm.objectsize.i64.p0i8({{.*}}, i1 false, i1 true, i1 true)
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// CHECK: call i32 @DynamicObjectSize0(i8* %{{.*}}, i64 [[REG]])
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gi = DynamicObjectSize0(ptr);
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// CHECK: [[WITH_OFFSET:%.*]] = getelementptr
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// CHECK: [[REG:%.*]] = call i64 @llvm.objectsize.i64.p0i8(i8* [[WITH_OFFSET]], i1 false, i1 true, i1 true)
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// CHECK: call i32 @DynamicObjectSize0(i8* {{.*}}, i64 [[REG]])
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gi = DynamicObjectSize0(ptr+10);
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// CHECK: [[REG:%.*]] = call i64 @llvm.objectsize.i64.p0i8({{.*}}, i1 true, i1 true, i1 true)
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// CHECK: call i32 @DynamicObjectSize2(i8* {{.*}}, i64 [[REG]])
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gi = DynamicObjectSize2(ptr);
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}
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// CHECK-LABEL: define void @test2
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void test2(struct Foo *t) {
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// CHECK: [[VAR:%[0-9]+]] = call i64 @llvm.objectsize
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// CHECK: call i32 @ObjectSize1(i8* %{{.*}}, i64 [[VAR]])
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gi = ObjectSize1(&t->t[1]);
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// CHECK: call i32 @ObjectSize3(i8* %{{.*}}, i64 36)
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gi = ObjectSize3(&t->t[1]);
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}
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// CHECK-LABEL: define i32 @_Z27NoViableOverloadObjectSize0Pv
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int NoViableOverloadObjectSize0(void *const p) __attribute__((overloadable)) {
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// CHECK: @llvm.objectsize
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return __builtin_object_size(p, 0);
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}
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// CHECK-LABEL: define i32 @_Z34NoViableOverloadDynamicObjectSize0Pv
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int NoViableOverloadDynamicObjectSize0(void *const p)
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__attribute__((overloadable)) {
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// CHECK: @llvm.objectsize
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return __builtin_object_size(p, 0);
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}
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// CHECK-LABEL: define i32 @_Z27NoViableOverloadObjectSize1Pv
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int NoViableOverloadObjectSize1(void *const p) __attribute__((overloadable)) {
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// CHECK: @llvm.objectsize
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return __builtin_object_size(p, 1);
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}
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// CHECK-LABEL: define i32 @_Z27NoViableOverloadObjectSize2Pv
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int NoViableOverloadObjectSize2(void *const p) __attribute__((overloadable)) {
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// CHECK: @llvm.objectsize
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return __builtin_object_size(p, 2);
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}
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// CHECK-LABEL: define i32 @_Z27NoViableOverloadObjectSize3Pv
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int NoViableOverloadObjectSize3(void *const p) __attribute__((overloadable)) {
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// CHECK-NOT: @llvm.objectsize
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return __builtin_object_size(p, 3);
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}
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// CHECK-LABEL: define i32 @_Z27NoViableOverloadObjectSize0Pv
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// CHECK-NOT: @llvm.objectsize
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int NoViableOverloadObjectSize0(void *const p PS(0))
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__attribute__((overloadable)) {
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return __builtin_object_size(p, 0);
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}
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int NoViableOverloadDynamicObjectSize0(void *const p PDS(0))
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__attribute__((overloadable)) {
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return __builtin_dynamic_object_size(p, 0);
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}
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int NoViableOverloadObjectSize1(void *const p PS(1))
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__attribute__((overloadable)) {
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return __builtin_object_size(p, 1);
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}
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int NoViableOverloadObjectSize2(void *const p PS(2))
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__attribute__((overloadable)) {
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return __builtin_object_size(p, 2);
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}
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int NoViableOverloadObjectSize3(void *const p PS(3))
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__attribute__((overloadable)) {
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return __builtin_object_size(p, 3);
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}
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const static int SHOULDNT_BE_CALLED = -100;
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int NoViableOverloadObjectSize0(void *const p PS(0))
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__attribute__((overloadable, enable_if(p == 0, "never selected"))) {
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return SHOULDNT_BE_CALLED;
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}
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int NoViableOverloadObjectSize1(void *const p PS(1))
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__attribute__((overloadable, enable_if(p == 0, "never selected"))) {
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return SHOULDNT_BE_CALLED;
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}
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int NoViableOverloadObjectSize2(void *const p PS(2))
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__attribute__((overloadable, enable_if(p == 0, "never selected"))) {
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return SHOULDNT_BE_CALLED;
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}
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int NoViableOverloadObjectSize3(void *const p PS(3))
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__attribute__((overloadable, enable_if(p == 0, "never selected"))) {
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return SHOULDNT_BE_CALLED;
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}
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// CHECK-LABEL: define void @test3
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void test3() {
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struct Foo t[10];
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// CHECK: call i32 @_Z27NoViableOverloadObjectSize0PvU17pass_object_size0(i8* %{{.*}}, i64 360)
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gi = NoViableOverloadObjectSize0(&t[1]);
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// CHECK: call i32 @_Z27NoViableOverloadObjectSize1PvU17pass_object_size1(i8* %{{.*}}, i64 360)
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gi = NoViableOverloadObjectSize1(&t[1]);
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// CHECK: call i32 @_Z27NoViableOverloadObjectSize2PvU17pass_object_size2(i8* %{{.*}}, i64 360)
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gi = NoViableOverloadObjectSize2(&t[1]);
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// CHECK: call i32 @_Z27NoViableOverloadObjectSize3PvU17pass_object_size3(i8* %{{.*}}, i64 360)
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gi = NoViableOverloadObjectSize3(&t[1]);
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// CHECK: call i32 @_Z27NoViableOverloadObjectSize0PvU17pass_object_size0(i8* %{{.*}}, i64 356)
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gi = NoViableOverloadObjectSize0(&t[1].t[1]);
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// CHECK: call i32 @_Z27NoViableOverloadObjectSize1PvU17pass_object_size1(i8* %{{.*}}, i64 36)
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gi = NoViableOverloadObjectSize1(&t[1].t[1]);
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// CHECK: call i32 @_Z27NoViableOverloadObjectSize2PvU17pass_object_size2(i8* %{{.*}}, i64 356)
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gi = NoViableOverloadObjectSize2(&t[1].t[1]);
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// CHECK: call i32 @_Z27NoViableOverloadObjectSize3PvU17pass_object_size3(i8* %{{.*}}, i64 36)
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gi = NoViableOverloadObjectSize3(&t[1].t[1]);
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// CHECK: call i32 @_Z34NoViableOverloadDynamicObjectSize0PvU25pass_dynamic_object_size0(i8* %{{.*}}, i64 360)
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gi = NoViableOverloadDynamicObjectSize0(&t[1]);
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}
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// CHECK-LABEL: define void @test4
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void test4(struct Foo *t) {
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// CHECK: call i32 @_Z27NoViableOverloadObjectSize0PvU17pass_object_size0(i8* %{{.*}}, i64 %{{.*}})
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gi = NoViableOverloadObjectSize0(&t[1]);
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// CHECK: call i32 @_Z27NoViableOverloadObjectSize1PvU17pass_object_size1(i8* %{{.*}}, i64 %{{.*}})
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gi = NoViableOverloadObjectSize1(&t[1]);
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// CHECK: call i32 @_Z27NoViableOverloadObjectSize2PvU17pass_object_size2(i8* %{{.*}}, i64 %{{.*}})
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gi = NoViableOverloadObjectSize2(&t[1]);
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// CHECK: call i32 @_Z27NoViableOverloadObjectSize3PvU17pass_object_size3(i8* %{{.*}}, i64 0)
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gi = NoViableOverloadObjectSize3(&t[1]);
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// CHECK: call i32 @_Z27NoViableOverloadObjectSize0PvU17pass_object_size0(i8* %{{.*}}, i64 %{{.*}})
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gi = NoViableOverloadObjectSize0(&t[1].t[1]);
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// CHECK: [[VAR:%[0-9]+]] = call i64 @llvm.objectsize
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// CHECK: call i32 @_Z27NoViableOverloadObjectSize1PvU17pass_object_size1(i8* %{{.*}}, i64 [[VAR]])
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gi = NoViableOverloadObjectSize1(&t[1].t[1]);
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// CHECK: call i32 @_Z27NoViableOverloadObjectSize2PvU17pass_object_size2(i8* %{{.*}}, i64 %{{.*}})
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gi = NoViableOverloadObjectSize2(&t[1].t[1]);
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// CHECK: call i32 @_Z27NoViableOverloadObjectSize3PvU17pass_object_size3(i8* %{{.*}}, i64 36)
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gi = NoViableOverloadObjectSize3(&t[1].t[1]);
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}
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void test5() {
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struct Foo t[10];
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int (*f)(void *) = &NoViableOverloadObjectSize0;
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gi = f(&t[1]);
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int (*g)(void *) = &NoViableOverloadDynamicObjectSize0;
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gi = g(&t[1]);
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}
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// CHECK-LABEL: define i32 @IndirectObjectSize0
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int IndirectObjectSize0(void *const p PS(0)) {
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// CHECK: call i32 @ObjectSize0(i8* %{{.*}}, i64 %{{.*}})
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// CHECK-NOT: @llvm.objectsize
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return ObjectSize0(p);
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}
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// CHECK-LABEL: define i32 @IndirectObjectSize1
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int IndirectObjectSize1(void *const p PS(1)) {
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// CHECK: call i32 @ObjectSize1(i8* %{{.*}}, i64 %{{.*}})
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// CHECK-NOT: @llvm.objectsize
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return ObjectSize1(p);
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}
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// CHECK-LABEL: define i32 @IndirectObjectSize2
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int IndirectObjectSize2(void *const p PS(2)) {
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// CHECK: call i32 @ObjectSize2(i8* %{{.*}}, i64 %{{.*}})
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// CHECK-NOT: @llvm.objectsize
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return ObjectSize2(p);
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}
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// CHECK-LABEL: define i32 @IndirectObjectSize3
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int IndirectObjectSize3(void *const p PS(3)) {
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// CHECK: call i32 @ObjectSize3(i8* %{{.*}}, i64 %{{.*}})
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// CHECK-NOT: @llvm.objectsize
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return ObjectSize3(p);
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}
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int IndirectDynamicObjectSize0(void *const p PDS(0)) {
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// CHECK: call i32 @ObjectSize0(i8* %{{.*}}, i64 %{{.*}})
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// CHECK-NOT: @llvm.objectsize
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return ObjectSize0(p);
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}
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int Overload0(void *, size_t, void *, size_t);
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int OverloadNoSize(void *, void *);
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int OverloadedObjectSize(void *const p PS(0),
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void *const c PS(0))
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__attribute__((overloadable)) __asm__("Overload0");
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int OverloadedObjectSize(void *const p, void *const c)
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__attribute__((overloadable)) __asm__("OverloadNoSize");
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// CHECK-LABEL: define void @test6
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void test6() {
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int known[10], *opaque;
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// CHECK: call i32 @"\01Overload0"
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gi = OverloadedObjectSize(&known[0], &known[0]);
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// CHECK: call i32 @"\01Overload0"
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gi = OverloadedObjectSize(&known[0], opaque);
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// CHECK: call i32 @"\01Overload0"
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gi = OverloadedObjectSize(opaque, &known[0]);
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// CHECK: call i32 @"\01Overload0"
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gi = OverloadedObjectSize(opaque, opaque);
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}
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int Identity(void *p, size_t i) { return i; }
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// CHECK-NOT: define void @AsmObjectSize
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int AsmObjectSize0(void *const p PS(0)) __asm__("Identity");
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int AsmObjectSize1(void *const p PS(1)) __asm__("Identity");
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int AsmObjectSize2(void *const p PS(2)) __asm__("Identity");
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int AsmObjectSize3(void *const p PS(3)) __asm__("Identity");
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// CHECK-LABEL: define void @test7
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void test7() {
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struct Foo t[10];
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// CHECK: call i32 @"\01Identity"(i8* %{{.*}}, i64 360)
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gi = AsmObjectSize0(&t[1]);
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// CHECK: call i32 @"\01Identity"(i8* %{{.*}}, i64 360)
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gi = AsmObjectSize1(&t[1]);
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// CHECK: call i32 @"\01Identity"(i8* %{{.*}}, i64 360)
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gi = AsmObjectSize2(&t[1]);
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// CHECK: call i32 @"\01Identity"(i8* %{{.*}}, i64 360)
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gi = AsmObjectSize3(&t[1]);
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// CHECK: call i32 @"\01Identity"(i8* %{{.*}}, i64 356)
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gi = AsmObjectSize0(&t[1].t[1]);
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// CHECK: call i32 @"\01Identity"(i8* %{{.*}}, i64 36)
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gi = AsmObjectSize1(&t[1].t[1]);
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// CHECK: call i32 @"\01Identity"(i8* %{{.*}}, i64 356)
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gi = AsmObjectSize2(&t[1].t[1]);
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// CHECK: call i32 @"\01Identity"(i8* %{{.*}}, i64 36)
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gi = AsmObjectSize3(&t[1].t[1]);
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}
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// CHECK-LABEL: define void @test8
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void test8(struct Foo *t) {
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// CHECK: [[VAR:%[0-9]+]] = call i64 @llvm.objectsize
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// CHECK: call i32 @"\01Identity"(i8* %{{.*}}, i64 [[VAR]])
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gi = AsmObjectSize1(&t[1].t[1]);
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// CHECK: call i32 @"\01Identity"(i8* %{{.*}}, i64 36)
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gi = AsmObjectSize3(&t[1].t[1]);
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}
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void DifferingObjectSize0(void *const p __attribute__((pass_object_size(0))));
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void DifferingObjectSize1(void *const p __attribute__((pass_object_size(1))));
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void DifferingObjectSize2(void *const p __attribute__((pass_object_size(2))));
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void DifferingObjectSize3(void *const p __attribute__((pass_object_size(3))));
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// CHECK-LABEL: define void @test9
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void test9(void *const p __attribute__((pass_object_size(0)))) {
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// CHECK: @llvm.objectsize
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DifferingObjectSize2(p);
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// CHECK-NOT: @llvm.objectsize
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DifferingObjectSize0(p);
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DifferingObjectSize1(p);
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// CHECK: call void @DifferingObjectSize3(i8* %{{.*}}, i64 0)
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DifferingObjectSize3(p);
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}
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// CHECK-LABEL: define void @test10
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void test10(void *const p __attribute__((pass_object_size(1)))) {
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// CHECK: @llvm.objectsize
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DifferingObjectSize2(p);
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// CHECK: @llvm.objectsize
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DifferingObjectSize0(p);
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// CHECK-NOT: @llvm.objectsize
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DifferingObjectSize1(p);
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// CHECK: call void @DifferingObjectSize3(i8* %{{.*}}, i64 0)
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DifferingObjectSize3(p);
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}
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// CHECK-LABEL: define void @test11
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void test11(void *const p __attribute__((pass_object_size(2)))) {
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// CHECK: @llvm.objectsize
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DifferingObjectSize0(p);
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// CHECK: @llvm.objectsize
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DifferingObjectSize1(p);
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// CHECK-NOT: @llvm.objectsize
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DifferingObjectSize2(p);
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// CHECK: call void @DifferingObjectSize3(i8* %{{.*}}, i64 0)
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DifferingObjectSize3(p);
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}
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// CHECK-LABEL: define void @test12
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void test12(void *const p __attribute__((pass_object_size(3)))) {
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// CHECK: @llvm.objectsize
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DifferingObjectSize0(p);
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// CHECK: @llvm.objectsize
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DifferingObjectSize1(p);
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// CHECK-NOT: @llvm.objectsize
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DifferingObjectSize2(p);
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DifferingObjectSize3(p);
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}
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// CHECK-LABEL: define void @test13
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void test13() {
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char c[10];
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unsigned i = 0;
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char *p = c;
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// CHECK: @llvm.objectsize
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ObjectSize0(p);
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// Allow side-effects, since they always need to happen anyway. Just make sure
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// we don't perform them twice.
|
|
// CHECK: = add
|
|
// CHECK-NOT: = add
|
|
// CHECK: @llvm.objectsize
|
|
// CHECK: call i32 @ObjectSize0
|
|
ObjectSize0(p + ++i);
|
|
|
|
// CHECK: = add
|
|
// CHECK: @llvm.objectsize
|
|
// CHECK-NOT: = add
|
|
// CHECK: call i32 @ObjectSize0
|
|
ObjectSize0(p + i++);
|
|
}
|
|
|
|
// There was a bug where variadic functions with pass_object_size would cause
|
|
// problems in the form of failed assertions.
|
|
void my_sprintf(char *const c __attribute__((pass_object_size(0))), ...) {}
|
|
|
|
// CHECK-LABEL: define void @test14
|
|
void test14(char *c) {
|
|
// CHECK: @llvm.objectsize
|
|
// CHECK: call void (i8*, i64, ...) @my_sprintf
|
|
my_sprintf(c);
|
|
|
|
// CHECK: @llvm.objectsize
|
|
// CHECK: call void (i8*, i64, ...) @my_sprintf
|
|
my_sprintf(c, 1, 2, 3);
|
|
}
|
|
|
|
void pass_size_unsigned(unsigned *const PS(0));
|
|
|
|
// Bug: we weren't lowering to the proper @llvm.objectsize for pointers that
|
|
// don't turn into i8*s, which caused crashes.
|
|
// CHECK-LABEL: define void @test15
|
|
void test15(unsigned *I) {
|
|
// CHECK: @llvm.objectsize.i64.p0i32
|
|
// CHECK: call void @pass_size_unsigned
|
|
pass_size_unsigned(I);
|
|
}
|
|
|
|
void pass_size_as1(__attribute__((address_space(1))) void *const PS(0));
|
|
|
|
void pass_size_unsigned_as1(
|
|
__attribute__((address_space(1))) unsigned *const PS(0));
|
|
|
|
// CHECK-LABEL: define void @test16
|
|
void test16(__attribute__((address_space(1))) unsigned *I) {
|
|
// CHECK: call i64 @llvm.objectsize.i64.p1i8
|
|
// CHECK: call void @pass_size_as1
|
|
pass_size_as1(I);
|
|
// CHECK: call i64 @llvm.objectsize.i64.p1i32
|
|
// CHECK: call void @pass_size_unsigned_as1
|
|
pass_size_unsigned_as1(I);
|
|
}
|
|
|
|
// This used to cause assertion failures, since we'd try to emit the statement
|
|
// expression (and definitions for `a`) twice.
|
|
// CHECK-LABEL: define void @test17
|
|
void test17(char *C) {
|
|
// Check for 65535 to see if we're emitting this pointer twice.
|
|
// CHECK: 65535
|
|
// CHECK-NOT: 65535
|
|
// CHECK: @llvm.objectsize.i64.p0i8(i8* [[PTR:%[^,]+]],
|
|
// CHECK-NOT: 65535
|
|
// CHECK: call i32 @ObjectSize0(i8* [[PTR]]
|
|
ObjectSize0(C + ({ int a = 65535; a; }));
|
|
}
|
|
|
|
// CHECK-LABEL: define void @test18
|
|
void test18(char *const p PDS(0)) {
|
|
// CHECK-NOT: llvm.objectsize
|
|
gi = __builtin_dynamic_object_size(p, 0);
|
|
gi = __builtin_object_size(p, 0);
|
|
}
|