diff options
Diffstat (limited to 'test/CodeGen/alloc-size.c')
-rw-r--r-- | test/CodeGen/alloc-size.c | 228 |
1 files changed, 122 insertions, 106 deletions
diff --git a/test/CodeGen/alloc-size.c b/test/CodeGen/alloc-size.c index 1c98b6874d..16cc0fe118 100644 --- a/test/CodeGen/alloc-size.c +++ b/test/CodeGen/alloc-size.c @@ -1,4 +1,11 @@ -// RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm %s -o - 2>&1 | FileCheck %s +// RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm %s -o - 2>&1 | FileCheck %s +// RUN: %clang_cc1 -DDYNAMIC -triple x86_64-apple-darwin -emit-llvm %s -o - 2>&1 | FileCheck %s + +#ifdef DYNAMIC +#define OBJECT_SIZE_BUILTIN __builtin_dynamic_object_size +#else +#define OBJECT_SIZE_BUILTIN __builtin_object_size +#endif #define NULL ((void *)0) @@ -20,86 +27,86 @@ void *my_calloc(size_t, size_t) __attribute__((alloc_size(1, 2))); void test1() { void *const vp = my_malloc(100); // CHECK: store i32 100 - gi = __builtin_object_size(vp, 0); + gi = OBJECT_SIZE_BUILTIN(vp, 0); // CHECK: store i32 100 - gi = __builtin_object_size(vp, 1); + gi = OBJECT_SIZE_BUILTIN(vp, 1); // CHECK: store i32 100 - gi = __builtin_object_size(vp, 2); + gi = OBJECT_SIZE_BUILTIN(vp, 2); // CHECK: store i32 100 - gi = __builtin_object_size(vp, 3); + gi = OBJECT_SIZE_BUILTIN(vp, 3); void *const arr = my_calloc(100, 5); // CHECK: store i32 500 - gi = __builtin_object_size(arr, 0); + gi = OBJECT_SIZE_BUILTIN(arr, 0); // CHECK: store i32 500 - gi = __builtin_object_size(arr, 1); + gi = OBJECT_SIZE_BUILTIN(arr, 1); // CHECK: store i32 500 - gi = __builtin_object_size(arr, 2); + gi = OBJECT_SIZE_BUILTIN(arr, 2); // CHECK: store i32 500 - gi = __builtin_object_size(arr, 3); + gi = OBJECT_SIZE_BUILTIN(arr, 3); // CHECK: store i32 100 - gi = __builtin_object_size(my_malloc(100), 0); + gi = OBJECT_SIZE_BUILTIN(my_malloc(100), 0); // CHECK: store i32 100 - gi = __builtin_object_size(my_malloc(100), 1); + gi = OBJECT_SIZE_BUILTIN(my_malloc(100), 1); // CHECK: store i32 100 - gi = __builtin_object_size(my_malloc(100), 2); + gi = OBJECT_SIZE_BUILTIN(my_malloc(100), 2); // CHECK: store i32 100 - gi = __builtin_object_size(my_malloc(100), 3); + gi = OBJECT_SIZE_BUILTIN(my_malloc(100), 3); // CHECK: store i32 500 - gi = __builtin_object_size(my_calloc(100, 5), 0); + gi = OBJECT_SIZE_BUILTIN(my_calloc(100, 5), 0); // CHECK: store i32 500 - gi = __builtin_object_size(my_calloc(100, 5), 1); + gi = OBJECT_SIZE_BUILTIN(my_calloc(100, 5), 1); // CHECK: store i32 500 - gi = __builtin_object_size(my_calloc(100, 5), 2); + gi = OBJECT_SIZE_BUILTIN(my_calloc(100, 5), 2); // CHECK: store i32 500 - gi = __builtin_object_size(my_calloc(100, 5), 3); + gi = OBJECT_SIZE_BUILTIN(my_calloc(100, 5), 3); void *const zeroPtr = my_malloc(0); // CHECK: store i32 0 - gi = __builtin_object_size(zeroPtr, 0); + gi = OBJECT_SIZE_BUILTIN(zeroPtr, 0); // CHECK: store i32 0 - gi = __builtin_object_size(my_malloc(0), 0); + gi = OBJECT_SIZE_BUILTIN(my_malloc(0), 0); void *const zeroArr1 = my_calloc(0, 1); void *const zeroArr2 = my_calloc(1, 0); // CHECK: store i32 0 - gi = __builtin_object_size(zeroArr1, 0); + gi = OBJECT_SIZE_BUILTIN(zeroArr1, 0); // CHECK: store i32 0 - gi = __builtin_object_size(zeroArr2, 0); + gi = OBJECT_SIZE_BUILTIN(zeroArr2, 0); // CHECK: store i32 0 - gi = __builtin_object_size(my_calloc(1, 0), 0); + gi = OBJECT_SIZE_BUILTIN(my_calloc(1, 0), 0); // CHECK: store i32 0 - gi = __builtin_object_size(my_calloc(0, 1), 0); + gi = OBJECT_SIZE_BUILTIN(my_calloc(0, 1), 0); } // CHECK-LABEL: @test2 void test2() { void *const vp = my_malloc(gi); // CHECK: @llvm.objectsize - gi = __builtin_object_size(vp, 0); + gi = OBJECT_SIZE_BUILTIN(vp, 0); void *const arr1 = my_calloc(gi, 1); // CHECK: @llvm.objectsize - gi = __builtin_object_size(arr1, 0); + gi = OBJECT_SIZE_BUILTIN(arr1, 0); void *const arr2 = my_calloc(1, gi); // CHECK: @llvm.objectsize - gi = __builtin_object_size(arr2, 0); + gi = OBJECT_SIZE_BUILTIN(arr2, 0); } // CHECK-LABEL: @test3 void test3() { char *const buf = (char *)my_calloc(100, 5); // CHECK: store i32 500 - gi = __builtin_object_size(buf, 0); + gi = OBJECT_SIZE_BUILTIN(buf, 0); // CHECK: store i32 500 - gi = __builtin_object_size(buf, 1); + gi = OBJECT_SIZE_BUILTIN(buf, 1); // CHECK: store i32 500 - gi = __builtin_object_size(buf, 2); + gi = OBJECT_SIZE_BUILTIN(buf, 2); // CHECK: store i32 500 - gi = __builtin_object_size(buf, 3); + gi = OBJECT_SIZE_BUILTIN(buf, 3); } struct Data { @@ -113,41 +120,41 @@ struct Data { void test5() { struct Data *const data = my_malloc(sizeof(*data)); // CHECK: store i32 48 - gi = __builtin_object_size(data, 0); + gi = OBJECT_SIZE_BUILTIN(data, 0); // CHECK: store i32 48 - gi = __builtin_object_size(data, 1); + gi = OBJECT_SIZE_BUILTIN(data, 1); // CHECK: store i32 48 - gi = __builtin_object_size(data, 2); + gi = OBJECT_SIZE_BUILTIN(data, 2); // CHECK: store i32 48 - gi = __builtin_object_size(data, 3); + gi = OBJECT_SIZE_BUILTIN(data, 3); // CHECK: store i32 40 - gi = __builtin_object_size(&data->t[1], 0); + gi = OBJECT_SIZE_BUILTIN(&data->t[1], 0); // CHECK: store i32 36 - gi = __builtin_object_size(&data->t[1], 1); + gi = OBJECT_SIZE_BUILTIN(&data->t[1], 1); // CHECK: store i32 40 - gi = __builtin_object_size(&data->t[1], 2); + gi = OBJECT_SIZE_BUILTIN(&data->t[1], 2); // CHECK: store i32 36 - gi = __builtin_object_size(&data->t[1], 3); + gi = OBJECT_SIZE_BUILTIN(&data->t[1], 3); struct Data *const arr = my_calloc(sizeof(*data), 2); // CHECK: store i32 96 - gi = __builtin_object_size(arr, 0); + gi = OBJECT_SIZE_BUILTIN(arr, 0); // CHECK: store i32 96 - gi = __builtin_object_size(arr, 1); + gi = OBJECT_SIZE_BUILTIN(arr, 1); // CHECK: store i32 96 - gi = __builtin_object_size(arr, 2); + gi = OBJECT_SIZE_BUILTIN(arr, 2); // CHECK: store i32 96 - gi = __builtin_object_size(arr, 3); + gi = OBJECT_SIZE_BUILTIN(arr, 3); // CHECK: store i32 88 - gi = __builtin_object_size(&arr->t[1], 0); + gi = OBJECT_SIZE_BUILTIN(&arr->t[1], 0); // CHECK: store i32 36 - gi = __builtin_object_size(&arr->t[1], 1); + gi = OBJECT_SIZE_BUILTIN(&arr->t[1], 1); // CHECK: store i32 88 - gi = __builtin_object_size(&arr->t[1], 2); + gi = OBJECT_SIZE_BUILTIN(&arr->t[1], 2); // CHECK: store i32 36 - gi = __builtin_object_size(&arr->t[1], 3); + gi = OBJECT_SIZE_BUILTIN(&arr->t[1], 3); } // CHECK-LABEL: @test6 @@ -156,13 +163,13 @@ void test6() { // so when we know the source of the allocation. struct Data *const data = my_malloc(sizeof(*data) + 10); // CHECK: store i32 11 - gi = __builtin_object_size(data->end, 0); + gi = OBJECT_SIZE_BUILTIN(data->end, 0); // CHECK: store i32 11 - gi = __builtin_object_size(data->end, 1); + gi = OBJECT_SIZE_BUILTIN(data->end, 1); // CHECK: store i32 11 - gi = __builtin_object_size(data->end, 2); + gi = OBJECT_SIZE_BUILTIN(data->end, 2); // CHECK: store i32 11 - gi = __builtin_object_size(data->end, 3); + gi = OBJECT_SIZE_BUILTIN(data->end, 3); struct Data *const arr = my_calloc(sizeof(*arr) + 5, 3); // AFAICT, GCC treats malloc and calloc identically. So, we should do the @@ -178,67 +185,67 @@ void test6() { // or "allocate M smaller `Data`s with extra padding". // CHECK: store i32 112 - gi = __builtin_object_size(arr->end, 0); + gi = OBJECT_SIZE_BUILTIN(arr->end, 0); // CHECK: store i32 112 - gi = __builtin_object_size(arr->end, 1); + gi = OBJECT_SIZE_BUILTIN(arr->end, 1); // CHECK: store i32 112 - gi = __builtin_object_size(arr->end, 2); + gi = OBJECT_SIZE_BUILTIN(arr->end, 2); // CHECK: store i32 112 - gi = __builtin_object_size(arr->end, 3); + gi = OBJECT_SIZE_BUILTIN(arr->end, 3); // CHECK: store i32 112 - gi = __builtin_object_size(arr[0].end, 0); + gi = OBJECT_SIZE_BUILTIN(arr[0].end, 0); // CHECK: store i32 112 - gi = __builtin_object_size(arr[0].end, 1); + gi = OBJECT_SIZE_BUILTIN(arr[0].end, 1); // CHECK: store i32 112 - gi = __builtin_object_size(arr[0].end, 2); + gi = OBJECT_SIZE_BUILTIN(arr[0].end, 2); // CHECK: store i32 112 - gi = __builtin_object_size(arr[0].end, 3); + gi = OBJECT_SIZE_BUILTIN(arr[0].end, 3); // CHECK: store i32 64 - gi = __builtin_object_size(arr[1].end, 0); + gi = OBJECT_SIZE_BUILTIN(arr[1].end, 0); // CHECK: store i32 64 - gi = __builtin_object_size(arr[1].end, 1); + gi = OBJECT_SIZE_BUILTIN(arr[1].end, 1); // CHECK: store i32 64 - gi = __builtin_object_size(arr[1].end, 2); + gi = OBJECT_SIZE_BUILTIN(arr[1].end, 2); // CHECK: store i32 64 - gi = __builtin_object_size(arr[1].end, 3); + gi = OBJECT_SIZE_BUILTIN(arr[1].end, 3); // CHECK: store i32 16 - gi = __builtin_object_size(arr[2].end, 0); + gi = OBJECT_SIZE_BUILTIN(arr[2].end, 0); // CHECK: store i32 16 - gi = __builtin_object_size(arr[2].end, 1); + gi = OBJECT_SIZE_BUILTIN(arr[2].end, 1); // CHECK: store i32 16 - gi = __builtin_object_size(arr[2].end, 2); + gi = OBJECT_SIZE_BUILTIN(arr[2].end, 2); // CHECK: store i32 16 - gi = __builtin_object_size(arr[2].end, 3); + gi = OBJECT_SIZE_BUILTIN(arr[2].end, 3); } // CHECK-LABEL: @test7 void test7() { struct Data *const data = my_malloc(sizeof(*data) + 5); // CHECK: store i32 9 - gi = __builtin_object_size(data->pad, 0); + gi = OBJECT_SIZE_BUILTIN(data->pad, 0); // CHECK: store i32 3 - gi = __builtin_object_size(data->pad, 1); + gi = OBJECT_SIZE_BUILTIN(data->pad, 1); // CHECK: store i32 9 - gi = __builtin_object_size(data->pad, 2); + gi = OBJECT_SIZE_BUILTIN(data->pad, 2); // CHECK: store i32 3 - gi = __builtin_object_size(data->pad, 3); + gi = OBJECT_SIZE_BUILTIN(data->pad, 3); } // CHECK-LABEL: @test8 void test8() { // Non-const pointers aren't currently supported. void *buf = my_calloc(100, 5); - // CHECK: @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false, i1 true) - gi = __builtin_object_size(buf, 0); + // CHECK: @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false, i1 true, i1 + gi = OBJECT_SIZE_BUILTIN(buf, 0); // CHECK: @llvm.objectsize - gi = __builtin_object_size(buf, 1); + gi = OBJECT_SIZE_BUILTIN(buf, 1); // CHECK: @llvm.objectsize - gi = __builtin_object_size(buf, 2); + gi = OBJECT_SIZE_BUILTIN(buf, 2); // CHECK: store i32 0 - gi = __builtin_object_size(buf, 3); + gi = OBJECT_SIZE_BUILTIN(buf, 3); } // CHECK-LABEL: @test9 @@ -249,11 +256,11 @@ void test9() { short *const buf2 = ((short*)(my_malloc(100))); // CHECK: store i32 100 - gi = __builtin_object_size(buf0, 0); + gi = OBJECT_SIZE_BUILTIN(buf0, 0); // CHECK: store i32 100 - gi = __builtin_object_size(buf1, 0); + gi = OBJECT_SIZE_BUILTIN(buf1, 0); // CHECK: store i32 100 - gi = __builtin_object_size(buf2, 0); + gi = OBJECT_SIZE_BUILTIN(buf2, 0); } // CHECK-LABEL: @test10 @@ -261,36 +268,36 @@ void test10() { // Yay overflow short *const arr = my_calloc((size_t)-1 / 2 + 1, 2); // CHECK: @llvm.objectsize - gi = __builtin_object_size(arr, 0); + gi = OBJECT_SIZE_BUILTIN(arr, 0); // CHECK: @llvm.objectsize - gi = __builtin_object_size(arr, 1); + gi = OBJECT_SIZE_BUILTIN(arr, 1); // CHECK: @llvm.objectsize - gi = __builtin_object_size(arr, 2); + gi = OBJECT_SIZE_BUILTIN(arr, 2); // CHECK: store i32 0 - gi = __builtin_object_size(arr, 3); + gi = OBJECT_SIZE_BUILTIN(arr, 3); // As an implementation detail, CharUnits can't handle numbers greater than or // equal to 2**63. Realistically, this shouldn't be a problem, but we should // be sure we don't emit crazy results for this case. short *const buf = my_malloc((size_t)-1); // CHECK: @llvm.objectsize - gi = __builtin_object_size(buf, 0); + gi = OBJECT_SIZE_BUILTIN(buf, 0); // CHECK: @llvm.objectsize - gi = __builtin_object_size(buf, 1); + gi = OBJECT_SIZE_BUILTIN(buf, 1); // CHECK: @llvm.objectsize - gi = __builtin_object_size(buf, 2); + gi = OBJECT_SIZE_BUILTIN(buf, 2); // CHECK: store i32 0 - gi = __builtin_object_size(buf, 3); + gi = OBJECT_SIZE_BUILTIN(buf, 3); short *const arr_big = my_calloc((size_t)-1 / 2 - 1, 2); // CHECK: @llvm.objectsize - gi = __builtin_object_size(arr_big, 0); + gi = OBJECT_SIZE_BUILTIN(arr_big, 0); // CHECK: @llvm.objectsize - gi = __builtin_object_size(arr_big, 1); + gi = OBJECT_SIZE_BUILTIN(arr_big, 1); // CHECK: @llvm.objectsize - gi = __builtin_object_size(arr_big, 2); + gi = OBJECT_SIZE_BUILTIN(arr_big, 2); // CHECK: store i32 0 - gi = __builtin_object_size(arr_big, 3); + gi = OBJECT_SIZE_BUILTIN(arr_big, 3); } void *my_tiny_malloc(char) __attribute__((alloc_size(1))); @@ -300,25 +307,25 @@ void *my_tiny_calloc(char, char) __attribute__((alloc_size(1, 2))); void test11() { void *const vp = my_tiny_malloc(100); // CHECK: store i32 100 - gi = __builtin_object_size(vp, 0); + gi = OBJECT_SIZE_BUILTIN(vp, 0); // CHECK: store i32 100 - gi = __builtin_object_size(vp, 1); + gi = OBJECT_SIZE_BUILTIN(vp, 1); // CHECK: store i32 100 - gi = __builtin_object_size(vp, 2); + gi = OBJECT_SIZE_BUILTIN(vp, 2); // CHECK: store i32 100 - gi = __builtin_object_size(vp, 3); + gi = OBJECT_SIZE_BUILTIN(vp, 3); // N.B. This causes char overflow, but not size_t overflow, so it should be // supported. void *const arr = my_tiny_calloc(100, 5); // CHECK: store i32 500 - gi = __builtin_object_size(arr, 0); + gi = OBJECT_SIZE_BUILTIN(arr, 0); // CHECK: store i32 500 - gi = __builtin_object_size(arr, 1); + gi = OBJECT_SIZE_BUILTIN(arr, 1); // CHECK: store i32 500 - gi = __builtin_object_size(arr, 2); + gi = OBJECT_SIZE_BUILTIN(arr, 2); // CHECK: store i32 500 - gi = __builtin_object_size(arr, 3); + gi = OBJECT_SIZE_BUILTIN(arr, 3); } void *my_signed_malloc(long) __attribute__((alloc_size(1))); @@ -327,26 +334,35 @@ void *my_signed_calloc(long, long) __attribute__((alloc_size(1, 2))); // CHECK-LABEL: @test12 void test12() { // CHECK: store i32 100 - gi = __builtin_object_size(my_signed_malloc(100), 0); + gi = OBJECT_SIZE_BUILTIN(my_signed_malloc(100), 0); // CHECK: store i32 500 - gi = __builtin_object_size(my_signed_calloc(100, 5), 0); + gi = OBJECT_SIZE_BUILTIN(my_signed_calloc(100, 5), 0); void *const vp = my_signed_malloc(-2); // CHECK: @llvm.objectsize - gi = __builtin_object_size(vp, 0); + gi = OBJECT_SIZE_BUILTIN(vp, 0); // N.B. These get lowered to -1 because the function calls may have // side-effects, and we can't determine the objectsize. // CHECK: store i32 -1 - gi = __builtin_object_size(my_signed_malloc(-2), 0); + gi = OBJECT_SIZE_BUILTIN(my_signed_malloc(-2), 0); void *const arr1 = my_signed_calloc(-2, 1); void *const arr2 = my_signed_calloc(1, -2); // CHECK: @llvm.objectsize - gi = __builtin_object_size(arr1, 0); + gi = OBJECT_SIZE_BUILTIN(arr1, 0); // CHECK: @llvm.objectsize - gi = __builtin_object_size(arr2, 0); + gi = OBJECT_SIZE_BUILTIN(arr2, 0); // CHECK: store i32 -1 - gi = __builtin_object_size(my_signed_calloc(1, -2), 0); + gi = OBJECT_SIZE_BUILTIN(my_signed_calloc(1, -2), 0); // CHECK: store i32 -1 - gi = __builtin_object_size(my_signed_calloc(-2, 1), 0); + gi = OBJECT_SIZE_BUILTIN(my_signed_calloc(-2, 1), 0); +} + +void *alloc_uchar(unsigned char) __attribute__((alloc_size(1))); + +// CHECK-LABEL: @test13 +void test13() { + // If 128 were incorrectly seen as negative, the result would become -1. + // CHECK: store i32 128, + gi = OBJECT_SIZE_BUILTIN(alloc_uchar(128), 0); } |