llvm-project/llvm/test/Instrumentation/AddressSanitizer/asan-detect-invalid-pointer-pair.ll
Matt Arsenault 855fe35064 AddressSanitizer: Convert tests to opaque pointers
Needed some manual fixes:
  AMDGPU/asan_instrument_generic_address_space.ll
  dynamic-shadow-darwin.ll
  lifetime.ll
  stack-poisoning-byval-args.ll
  global_metadata_windows.ll
  asan-masked-load-store.ll
  stack-poisoning-and-lifetime.ll
  stack-poisoning-and-lifetime-be.ll

This included some of the worst opaquify breakages I've seen. The
tests were dependent on 0 indexed GEPs, and had check lines directly
checking pointee types.
2022-11-27 20:10:57 -05:00

34 lines
1.2 KiB
LLVM

; RUN: opt < %s -passes=asan -asan-detect-invalid-pointer-cmp -S \
; RUN: | FileCheck %s --check-prefixes=CMP,NOSUB,ALL
; RUN: opt < %s -passes=asan -asan-detect-invalid-pointer-sub -S \
; RUN: | FileCheck %s --check-prefixes=SUB,NOCMP,ALL
; RUN: opt < %s -passes=asan -asan-detect-invalid-pointer-pair -S \
; RUN: | FileCheck %s --check-prefixes=CMP,SUB,ALL
; Support instrumentation of invalid pointer pair detection.
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
define i32 @mycmp(ptr %p, ptr %q) sanitize_address {
; ALL-LABEL: @mycmp
; NOCMP-NOT: call void @__sanitizer_ptr_cmp
; CMP: [[P:%[0-9A-Za-z]+]] = ptrtoint ptr %p to i64
; CMP: [[Q:%[0-9A-Za-z]+]] = ptrtoint ptr %q to i64
%x = icmp ule ptr %p, %q
; CMP: call void @__sanitizer_ptr_cmp(i64 [[P]], i64 [[Q]])
%y = zext i1 %x to i32
ret i32 %y
}
define i32 @mysub(ptr %p, ptr %q) sanitize_address {
; ALL-LABEL: @mysub
; NOSUB-NOT: call void @__sanitizer_ptr_sub
; SUB: [[P:%[0-9A-Za-z]+]] = ptrtoint ptr %p to i64
; SUB: [[Q:%[0-9A-Za-z]+]] = ptrtoint ptr %q to i64
%x = ptrtoint ptr %p to i64
%y = ptrtoint ptr %q to i64
%z = sub i64 %x, %y
; SUB: call void @__sanitizer_ptr_sub(i64 [[P]], i64 [[Q]])
%w = trunc i64 %z to i32
ret i32 %w
}