1; Test alloca instrumentation when tags are generated by HWASan function. 2; 3; RUN: opt < %s -hwasan -hwasan-generate-tags-with-calls -S | FileCheck %s 4 5target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128" 6target triple = "aarch64--linux-android" 7 8declare void @use32(i32*) 9 10define 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]] 18 19entry: 20 %x = alloca i32, align 4 21 call void @use32(i32* nonnull %x) 22 ret void 23} 24