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1; Test KHWASan instrumentation.2;3; RUN: opt < %s -passes=hwasan -hwasan-kernel=1 -hwasan-recover=1 -S | FileCheck %s --allow-empty --check-prefixes=INIT4; RUN: opt < %s -passes=hwasan -hwasan-kernel=1 -hwasan-recover=1 -S | FileCheck %s --check-prefixes=CHECK,NOOFFSET,MATCH-ALL5; RUN: opt < %s -passes=hwasan -hwasan-kernel=1 -hwasan-recover=1 -hwasan-mapping-offset=12345678 -S | FileCheck %s --check-prefixes=CHECK,OFFSET,MATCH-ALL6; RUN: opt < %s -passes=hwasan -hwasan-kernel=1 -hwasan-recover=1 -hwasan-match-all-tag=-1 -S | FileCheck %s --check-prefixes=CHECK,NOOFFSET,NO-MATCH-ALL7; RUN: opt < %s -passes=hwasan -hwasan-kernel=1 -hwasan-recover=1 -hwasan-inline-all-checks=0 -hwasan-mapping-offset=12345678 -S | FileCheck %s --check-prefixes=OUTLINE8 9target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"10target triple = "aarch64--linux-android"11 12define i8 @test_load(ptr %a) sanitize_hwaddress {13; CHECK-LABEL: @test_load(14; OFFSET: %[[SHADOW:[^ ]*]] = call ptr asm "", "=r,0"(ptr inttoptr (i64 12345678 to ptr))15; CHECK: %[[A:[^ ]*]] = ptrtoint ptr %a to i6416; CHECK: %[[B:[^ ]*]] = lshr i64 %[[A]], 5617; CHECK: %[[PTRTAG:[^ ]*]] = trunc i64 %[[B]] to i818; CHECK: %[[C:[^ ]*]] = or i64 %[[A]], -7205759403792793619; CHECK: %[[D:[^ ]*]] = lshr i64 %[[C]], 420 21; NOOFFSET: %[[E:[^ ]*]] = inttoptr i64 %[[D]] to ptr22 23; OFFSET: %[[E:[^ ]*]] = getelementptr i8, ptr %[[SHADOW]], i64 %[[D]]24 25; CHECK: %[[MEMTAG:[^ ]*]] = load i8, ptr %[[E]]26; CHECK: %[[F:[^ ]*]] = icmp ne i8 %[[PTRTAG]], %[[MEMTAG]]27 28; MATCH-ALL: %[[G:[^ ]*]] = icmp ne i8 %[[PTRTAG]], -129; MATCH-ALL: %[[H:[^ ]*]] = and i1 %[[F]], %[[G]]30; MATCH-ALL: br i1 %[[H]], label {{.*}}, label {{.*}}, !prof {{.*}}31 32; NO-MATCH-ALL: br i1 %[[F]], label {{.*}}, label {{.*}}, !prof {{.*}}33 34; CHECK: call void asm sideeffect "brk #2336", "{x0}"(i64 %[[A]])35; CHECK: br label36 37; CHECK: %[[G:[^ ]*]] = load i8, ptr %a, align 438; CHECK: ret i8 %[[G]]39 40; OUTLINE: %[[SHADOW:[^ ]*]] = call ptr asm "", "=r,0"(ptr inttoptr (i64 12345678 to ptr))41; OUTLINE: call void @llvm.hwasan.check.memaccess(ptr %[[SHADOW]], ptr %a, i32 67043360)42entry:43 %b = load i8, ptr %a, align 444 ret i8 %b45}46 47; INIT-NOT: call void @__hwasan_init48