86 lines
2.7 KiB
LLVM
86 lines
2.7 KiB
LLVM
; Test basic address sanitizer instrumentation for Myriad.
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;
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; RUN: opt -asan -asan-module -enable-new-pm=0 -S < %s | FileCheck %s
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; RUN: opt -passes='asan-pipeline' -S < %s | FileCheck %s
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target triple = "sparc-myriad-rtems"
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target datalayout = "E-m:e-p:32:32-i64:64-f128:64-n32-S64"
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; CHECK: @llvm.global_ctors = {{.*}}@asan.module_ctor
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define i32 @test_load(i32* %a) sanitize_address {
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; CHECK-LABEL: @test_load
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; CHECK-NOT: load
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; CHECK: ptrtoint i32* %a to i32
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; CHECK: %[[LOAD_ADDR:[^ ]*]] = and i32 %{{.*}}, -1073741825
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; CHECK: lshr i32 %{{.*}}, 29
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; CHECK: icmp eq i32 %{{.*}}, 4
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; CHECK: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}!prof ![[PROF:[0-9]+]]
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;
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; This block checks whether the shadow byte is 0.
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; CHECK: lshr i32 %[[LOAD_ADDR]], 5
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; CHECK: add i32 %{{.*}}, -1694498816
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; CHECK: %[[LOAD_SHADOW_PTR:[^ ]*]] = inttoptr
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; CHECK: %[[LOAD_SHADOW:[^ ]*]] = load i8, i8* %[[LOAD_SHADOW_PTR]]
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; CHECK: icmp ne i8
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; CHECK: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}!prof ![[PROF:[0-9]+]]
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;
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; This block refines the shadow test.
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; CHECK: and i32 %[[LOAD_ADDR]], 31
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; CHECK: add i32 %{{.*}}, 3
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; CHECK: trunc i32 %{{.*}} to i8
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; CHECK: icmp sge i8 %{{.*}}, %[[LOAD_SHADOW]]
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; CHECK: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}
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;
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; The crash block reports the error.
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; CHECK: call void @__asan_report_load4(i32 %[[LOAD_ADDR]])
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; CHECK: unreachable
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;
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; The actual load.
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; CHECK: %tmp1 = load i32, i32* %a
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; CHECK: ret i32 %tmp1
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entry:
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%tmp1 = load i32, i32* %a, align 4
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ret i32 %tmp1
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}
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define void @test_store(i32* %a) sanitize_address {
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; CHECK-LABEL: @test_store
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; CHECK-NOT: store
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; CHECK: ptrtoint i32* %a to i32
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; CHECK: %[[STORE_ADDR:[^ ]*]] = and i32 %{{.*}}, -1073741825
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; CHECK: lshr i32 %{{.*}}, 29
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; CHECK: icmp eq i32 %{{.*}}, 4
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; CHECK: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}!prof ![[PROF:[0-9]+]]
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;
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; This block checks whether the shadow byte is 0.
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; CHECK: lshr i32 %[[STORE_ADDR]], 5
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; CHECK: add i32 %{{.*}}, -1694498816
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; CHECK: %[[STORE_SHADOW_PTR:[^ ]*]] = inttoptr
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; CHECK: %[[STORE_SHADOW:[^ ]*]] = load i8, i8* %[[STORE_SHADOW_PTR]]
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; CHECK: icmp ne i8
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; CHECK: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}
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;
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; This block refines the shadow test.
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; CHECK: and i32 %[[STORE_ADDR]], 31
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; CHECK: add i32 %{{.*}}, 3
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; CHECK: trunc i32 %{{.*}} to i8
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; CHECK: icmp sge i8 %{{.*}}, %[[STORE_SHADOW]]
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; CHECK: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}
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;
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; The crash block reports the error.
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; CHECK: call void @__asan_report_store4(i32 %[[STORE_ADDR]])
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; CHECK: unreachable
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; The actual store.
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; CHECK: store i32 42, i32* %a
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; CHECK: ret void
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;
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entry:
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store i32 42, i32* %a, align 4
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ret void
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}
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; CHECK: define internal void @asan.module_ctor()
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; CHECK: call void @__asan_init()
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