24 lines
752 B
LLVM
24 lines
752 B
LLVM
|
; Test alloca instrumentation when tags are generated by HWASan function.
|
||
|
|
;
|
||
|
|
; RUN: opt < %s -hwasan -hwasan-generate-tags-with-calls -S | FileCheck %s
|
||
|
|
|
||
|
|
target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
|
||
|
|
target triple = "aarch64--linux-android"
|
||
|
|
|
||
|
|
declare void @use32(i32*)
|
||
|
|
|
||
|
|
define void @test_alloca() sanitize_hwaddress {
|
||
|
|
; CHECK-LABEL: @test_alloca(
|
||
|
|
; CHECK: %[[BC:[^ ]*]] = bitcast { i32, [12 x i8] }* %x to i32*
|
||
|
|
; CHECK: %[[T1:[^ ]*]] = call i8 @__hwasan_generate_tag()
|
||
|
|
; CHECK: %[[A:[^ ]*]] = zext i8 %[[T1]] to i64
|
||
|
|
; CHECK: %[[B:[^ ]*]] = ptrtoint i32* %[[BC]] to i64
|
||
|
|
; CHECK: %[[C:[^ ]*]] = shl i64 %[[A]], 56
|
||
|
|
; CHECK: or i64 %[[B]], %[[C]]
|
||
|
|
|
||
|
|
entry:
|
||
|
|
%x = alloca i32, align 4
|
||
|
|
call void @use32(i32* nonnull %x)
|
||
|
|
ret void
|
||
|
|
}
|