1*7c3d14c8STreehugger Robot // RUN: %clangxx_msan -fsanitize-memory-track-origins=2 -O0 %s -o %t && not %run %t >%t.out 2>&1 2*7c3d14c8STreehugger Robot // RUN: FileCheck %s < %t.out 3*7c3d14c8STreehugger Robot // RUN: %clangxx_msan -fsanitize-memory-track-origins=2 -O2 %s -o %t && not %run %t >%t.out 2>&1 4*7c3d14c8STreehugger Robot // RUN: FileCheck %s < %t.out 5*7c3d14c8STreehugger Robot 6*7c3d14c8STreehugger Robot // This is a regression test: there used to be broken "stored to memory at" 7*7c3d14c8STreehugger Robot // stacks with 8*7c3d14c8STreehugger Robot // in __msan_memcpy 9*7c3d14c8STreehugger Robot // in __msan::MsanReallocate 10*7c3d14c8STreehugger Robot // and nothing below that. 11*7c3d14c8STreehugger Robot 12*7c3d14c8STreehugger Robot #include <stdlib.h> main(int argc,char ** argv)13*7c3d14c8STreehugger Robotint main(int argc, char **argv) { 14*7c3d14c8STreehugger Robot char *p = (char *)malloc(100); 15*7c3d14c8STreehugger Robot p = (char *)realloc(p, 10000); 16*7c3d14c8STreehugger Robot char x = p[50]; 17*7c3d14c8STreehugger Robot free(p); 18*7c3d14c8STreehugger Robot return x; 19*7c3d14c8STreehugger Robot 20*7c3d14c8STreehugger Robot // CHECK: WARNING: MemorySanitizer: use-of-uninitialized-value 21*7c3d14c8STreehugger Robot // CHECK: {{#0 0x.* in main .*realloc-large-origin.cc:}}[[@LINE-3]] 22*7c3d14c8STreehugger Robot 23*7c3d14c8STreehugger Robot // CHECK: Uninitialized value was stored to memory at 24*7c3d14c8STreehugger Robot // CHECK: {{#0 0x.* in .*realloc}} 25*7c3d14c8STreehugger Robot // CHECK: {{#1 0x.* in main .*realloc-large-origin.cc:}}[[@LINE-10]] 26*7c3d14c8STreehugger Robot 27*7c3d14c8STreehugger Robot // CHECK: Uninitialized value was created by a heap allocation 28*7c3d14c8STreehugger Robot // CHECK: {{#0 0x.* in .*malloc}} 29*7c3d14c8STreehugger Robot // CHECK: {{#1 0x.* in main .*realloc-large-origin.cc:}}[[@LINE-15]] 30*7c3d14c8STreehugger Robot } 31