| ; REQUIRES: x86-registered-target |
| |
| ; RUN: opt < %s -S -asan-instrumentation-with-call-threshold=0 -passes=asan -asan-use-stack-safety=0 -o - | FileCheck %s --implicit-check-not="call {{.*}} @__asan_{{load|store|stack}}" --check-prefixes=CHECK,NOSAFETY |
| ; RUN: opt < %s -S -asan-instrumentation-with-call-threshold=0 -passes=asan | FileCheck %s --implicit-check-not="call {{.*}} @__asan_{{load|store|stack}}" |
| |
| ; CHECK-LABEL: define i32 @load |
| define i32 @load() sanitize_address { |
| %buf = alloca [10 x i8], align 1 |
| ; NOSAFETY: call i64 @__asan_stack_malloc |
| %1 = load i8, ptr %buf, align 1 |
| ; NOSAFETY: call void @__asan_load1 |
| ret i32 0 |
| } |
| |
| ; CHECK-LABEL: define i32 @store |
| define i32 @store() sanitize_address { |
| %buf = alloca [10 x i8], align 1 |
| ; NOSAFETY: call i64 @__asan_stack_malloc |
| store i8 0, ptr %buf |
| ; NOSAFETY: call void @__asan_store1 |
| ret i32 0 |
| } |
| |
| ; CHECK-LABEL: define i32 @unsafe_alloca |
| define i32 @unsafe_alloca(i32 %i) sanitize_address { |
| %buf.sroa.0 = alloca [10 x i8], align 4 |
| ; CHECK: call i64 @__asan_stack_malloc |
| %ptr = getelementptr [10 x i8], ptr %buf.sroa.0, i32 %i, i32 0 |
| store volatile i8 0, ptr %ptr, align 4 |
| ; CHECK: call void @__asan_store1 |
| store volatile i8 0, ptr %buf.sroa.0, align 4 |
| ; NOSAFETY: call void @__asan_store1 |
| ret i32 0 |
| } |
| |
| ; CHECK-LABEL: define void @atomicrmw |
| define void @atomicrmw() sanitize_address { |
| %buf = alloca [10 x i8], align 1 |
| ; NOSAFETY: call i64 @__asan_stack_malloc |
| %1 = atomicrmw add ptr %buf, i8 1 seq_cst |
| ; NOSAFETY: call void @__asan_store1 |
| ret void |
| } |
| |
| ; CHECK-LABEL: define void @cmpxchg |
| define void @cmpxchg(i8 %compare_to, i8 %new_value) sanitize_address { |
| %buf = alloca [10 x i8], align 1 |
| ; NOSAFETY: call i64 @__asan_stack_malloc |
| %1 = cmpxchg ptr %buf, i8 %compare_to, i8 %new_value seq_cst seq_cst |
| ; NOSAFETY: call void @__asan_store1 |
| ret void |
| } |
| |
| %struct.S = type { i32, i32 } |
| |
| ; CHECK-LABEL: define %struct.S @exchange( |
| ; NOSAFETY: call i64 @__asan_stack_malloc |
| ; CHECK: call ptr @__asan_memcpy( |
| ; CHECK: call ptr @__asan_memcpy( |
| ; NOSAFETY: call void @__asan_loadN( |
| define %struct.S @exchange(ptr %a, ptr %b) sanitize_address { |
| entry: |
| %tmp = alloca %struct.S, align 4 |
| call void @llvm.memcpy.p0.p0.i64(ptr align 4 %tmp, ptr align 4 %a, i64 8, i1 false) |
| call void @llvm.memcpy.p0.p0.i64(ptr align 4 %a, ptr align 4 %b, i64 8, i1 false) |
| %ret = load %struct.S, ptr %tmp |
| ret %struct.S %ret |
| } |
| |
| declare void @llvm.memcpy.p0.p0.i64(ptr nocapture, ptr nocapture readonly, i64, i1) nounwind |
