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 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" 7 8 declare void @use32(i32*) 9 10 define void @test_alloca() sanitize_hwaddress { 11 ; CHECK-LABEL: @test_alloca( 12 ; CHECK: %[[T1:[^ ]*]] = call i8 @__hwasan_generate_tag() 13 ; CHECK: %[[A:[^ ]*]] = zext i8 %[[T1]] to i64 14 ; CHECK: %[[B:[^ ]*]] = ptrtoint i32* %x to i64 15 ; CHECK: %[[C:[^ ]*]] = shl i64 %[[A]], 56 16 ; CHECK: or i64 %[[B]], %[[C]] 17 18 entry: 19 %x = alloca i32, align 4 20 call void @use32(i32* nonnull %x) 21 ret void 22 } 23
