mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-26 21:32:10 +00:00
64409ad8e3
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195014 91177308-0d34-0410-b5e6-96231b3b80d8
34 lines
1.1 KiB
LLVM
34 lines
1.1 KiB
LLVM
; Test handling of llvm.lifetime intrinsics in UAR mode.
|
|
; RUN: opt < %s -asan -asan-use-after-return -asan-check-lifetime -S | FileCheck %s
|
|
|
|
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
|
|
|
|
declare void @llvm.lifetime.start(i64, i8* nocapture) nounwind
|
|
declare void @llvm.lifetime.end(i64, i8* nocapture) nounwind
|
|
|
|
define i32 @basic_test() sanitize_address {
|
|
; CHECK-LABEL: define i32 @basic_test()
|
|
|
|
entry:
|
|
%retval = alloca i32, align 4
|
|
%c = alloca i8, align 1
|
|
|
|
call void @llvm.lifetime.start(i64 1, i8* %c)
|
|
; Memory is unpoisoned at llvm.lifetime.start
|
|
; CHECK: call void @__asan_unpoison_stack_memory(i64 %{{[^ ]+}}, i64 1)
|
|
|
|
store i32 0, i32* %retval
|
|
store i8 0, i8* %c, align 1
|
|
|
|
call void @llvm.lifetime.end(i64 1, i8* %c)
|
|
; Memory is poisoned at llvm.lifetime.end
|
|
; CHECK: call void @__asan_poison_stack_memory(i64 %{{[^ ]+}}, i64 1)
|
|
|
|
; No need to unpoison memory at function exit in UAR mode.
|
|
; CHECK-NOT: @__asan_unpoison_stack_memory
|
|
; CHECK: ret void
|
|
|
|
ret i32 0
|
|
}
|
|
|