// Check that the alloc_size attribute is propagated to the call instruction // for both direct and indirect calls // RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm %s -o - 2>&1 | FileCheck %s #define NULL ((void *)0) int gi; typedef unsigned long size_t; extern void *my_malloc(int) __attribute__((alloc_size(1))); extern void *my_calloc(int, int) __attribute__((alloc_size(1, 2))); // CHECK-LABEL: @call_direct void call_direct(void) { my_malloc(50); // CHECK: call ptr @my_malloc(i32 noundef 50) [[DIRECT_MALLOC_ATTR:#[0-9]+]] my_calloc(1, 16); // CHECK: call ptr @my_calloc(i32 noundef 1, i32 noundef 16) [[DIRECT_CALLOC_ATTR:#[0-9]+]] } extern void *(*malloc_function_pointer)(void *, int)__attribute__((alloc_size(2))); extern void *(*calloc_function_pointer)(void *, int, int)__attribute__((alloc_size(2, 3))); // CHECK-LABEL: @call_function_pointer void call_function_pointer(void) { malloc_function_pointer(NULL, 100); // CHECK: [[MALLOC_FN_PTR:%.+]] = load ptr, ptr @malloc_function_pointer, align 8 // CHECK: call ptr [[MALLOC_FN_PTR]](ptr noundef null, i32 noundef 100) [[INDIRECT_MALLOC_ATTR:#[0-9]+]] calloc_function_pointer(NULL, 2, 4); // CHECK: [[CALLOC_FN_PTR:%.+]] = load ptr, ptr @calloc_function_pointer, align 8 // CHECK: call ptr [[CALLOC_FN_PTR]](ptr noundef null, i32 noundef 2, i32 noundef 4) [[INDIRECT_CALLOC_ATTR:#[0-9]+]] } typedef void *(__attribute__((alloc_size(3))) * my_malloc_fn_pointer_type)(void *, void *, int); typedef void *(__attribute__((alloc_size(3, 4))) * my_calloc_fn_pointer_type)(void *, void *, int, int); extern my_malloc_fn_pointer_type malloc_function_pointer_with_typedef; extern my_calloc_fn_pointer_type calloc_function_pointer_with_typedef; // CHECK-LABEL: @call_function_pointer_typedef void call_function_pointer_typedef(void) { malloc_function_pointer_with_typedef(NULL, NULL, 200); // CHECK: [[INDIRECT_TYPEDEF_MALLOC_FN_PTR:%.+]] = load ptr, ptr @malloc_function_pointer_with_typedef, align 8 // CHECK: call ptr [[INDIRECT_TYPEDEF_MALLOC_FN_PTR]](ptr noundef null, ptr noundef null, i32 noundef 200) [[INDIRECT_TYPEDEF_MALLOC_ATTR:#[0-9]+]] calloc_function_pointer_with_typedef(NULL, NULL, 8, 4); // CHECK: [[INDIRECT_TYPEDEF_CALLOC_FN_PTR:%.+]] = load ptr, ptr @calloc_function_pointer_with_typedef, align 8 // CHECK: call ptr [[INDIRECT_TYPEDEF_CALLOC_FN_PTR]](ptr noundef null, ptr noundef null, i32 noundef 8, i32 noundef 4) [[INDIRECT_TYPEDEF_CALLOC_ATTR:#[0-9]+]] } // CHECK: attributes [[DIRECT_MALLOC_ATTR]] = { allocsize(0) } // CHECK: attributes [[DIRECT_CALLOC_ATTR]] = { allocsize(0,1) } // CHECK: attributes [[INDIRECT_MALLOC_ATTR]] = { allocsize(1) } // CHECK: attributes [[INDIRECT_CALLOC_ATTR]] = { allocsize(1,2) } // CHECK: attributes [[INDIRECT_TYPEDEF_MALLOC_ATTR]] = { allocsize(2) } // CHECK: attributes [[INDIRECT_TYPEDEF_CALLOC_ATTR]] = { allocsize(2,3) }