1 ; Test that shrinking an allocation updates the redzones 2 3 ; REQUIRES: no_minimal_build 4 5 ; RUN: llvm-as %s -o - | pnacl-freeze > %t.pexe && %S/../../pydir/szbuild.py \ 6 ; RUN: --fsanitize-address --sz=-allow-externally-defined-symbols \ 7 ; RUN: %t.pexe -o %t && %t 2>&1 | FileCheck %s 8 9 10 declare external i32 @malloc(i32) 11 declare external i32 @realloc(i32, i32) 12 declare external void @free(i32) 13 14 define void @_start(i32 %arg) { 15 %ptr16 = call i32 @malloc(i32 16) 16 %off12a = add i32 %ptr16, 12 17 %offptra = inttoptr i32 %off12a to i32* 18 %resa = load i32, i32* %offptra, align 1 19 %ptr8 = call i32 @realloc(i32 %ptr16, i32 8) 20 %off12b = add i32 %ptr8, 12 21 %offptrb = inttoptr i32 %off12b to i8* 22 %resb = load i8, i8* %offptrb, align 1 23 ret void 24 } 25 26 ; CHECK: Illegal 1 byte load from heap object at 27
