1 ; Test alloca instrumentation when tags are generated by HWASan function.
3 ; RUN: opt < %s -passes=hwasan -hwasan-generate-tags-with-calls -S | FileCheck %s
5 target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
6 target triple = "aarch64--linux-android"
8 declare void @use32(i32*)
10 define void @test_alloca() sanitize_hwaddress {
11 ; CHECK-LABEL: @test_alloca(
12 ; CHECK: %[[BC:[^ ]*]] = bitcast { i32, [12 x i8] }* %x to i32*
13 ; CHECK: %[[T1:[^ ]*]] = call i8 @__hwasan_generate_tag()
14 ; CHECK: %[[A:[^ ]*]] = zext i8 %[[T1]] to i64
15 ; CHECK: %[[B:[^ ]*]] = ptrtoint i32* %[[BC]] to i64
16 ; CHECK: %[[C:[^ ]*]] = shl i64 %[[A]], 56
17 ; CHECK: or i64 %[[B]], %[[C]]
20 %x = alloca i32, align 4
21 call void @use32(i32* nonnull %x)