| ; 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: %[[T1:[^ ]*]] = call i8 @__hwasan_generate_tag() |
| ; CHECK: %[[A:[^ ]*]] = zext i8 %[[T1]] to i64 |
| ; CHECK: %[[B:[^ ]*]] = ptrtoint i32* %x 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 |
| } |
