| ; RUN: opt < %s -passes='function(tsan),module(tsan-module)' -S | FileCheck %s |
| |
| target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| define i32 @read_4_bytes(i32* %a) sanitize_thread { |
| entry: |
| %tmp1 = load i32, i32* %a, align 4 |
| ret i32 %tmp1 |
| } |
| |
| ; CHECK: @llvm.used = appending global [1 x i8*] [i8* bitcast (void ()* @tsan.module_ctor to i8*)] |
| ; CHECK: @llvm.global_ctors = {{.*}}@tsan.module_ctor |
| |
| ; CHECK: define i32 @read_4_bytes(i32* %a) |
| ; CHECK: call void @__tsan_func_entry(i8* %0) |
| ; CHECK-NEXT: %1 = bitcast i32* %a to i8* |
| ; CHECK-NEXT: call void @__tsan_read4(i8* %1) |
| ; CHECK-NEXT: %tmp1 = load i32, i32* %a, align 4 |
| ; CHECK-NEXT: call void @__tsan_func_exit() |
| ; CHECK: ret i32 |
| |
| |
| declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i1) |
| declare void @llvm.memmove.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i1) |
| declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i1) |
| |
| |
| ; Check that tsan converts mem intrinsics back to function calls. |
| |
| define void @MemCpyTest(i8* nocapture %x, i8* nocapture %y) sanitize_thread { |
| entry: |
| tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 4 %x, i8* align 4 %y, i64 16, i1 false) |
| ret void |
| ; CHECK: define void @MemCpyTest |
| ; CHECK: call i8* @memcpy |
| ; CHECK: ret void |
| } |
| |
| define void @MemMoveTest(i8* nocapture %x, i8* nocapture %y) sanitize_thread { |
| entry: |
| tail call void @llvm.memmove.p0i8.p0i8.i64(i8* align 4 %x, i8* align 4 %y, i64 16, i1 false) |
| ret void |
| ; CHECK: define void @MemMoveTest |
| ; CHECK: call i8* @memmove |
| ; CHECK: ret void |
| } |
| |
| define void @MemSetTest(i8* nocapture %x) sanitize_thread { |
| entry: |
| tail call void @llvm.memset.p0i8.i64(i8* align 4 %x, i8 77, i64 16, i1 false) |
| ret void |
| ; CHECK: define void @MemSetTest |
| ; CHECK: call i8* @memset |
| ; CHECK: ret void |
| } |
| |
| ; CHECK-LABEL: @SwiftError |
| ; CHECK-NOT: __tsan_read |
| ; CHECK-NOT: __tsan_write |
| ; CHECK: ret |
| define void @SwiftError(i8** swifterror) sanitize_thread { |
| %swifterror_ptr_value = load i8*, i8** %0 |
| store i8* null, i8** %0 |
| %swifterror_addr = alloca swifterror i8* |
| %swifterror_ptr_value_2 = load i8*, i8** %swifterror_addr |
| store i8* null, i8** %swifterror_addr |
| ret void |
| } |
| |
| ; CHECK-LABEL: @SwiftErrorCall |
| ; CHECK-NOT: __tsan_read |
| ; CHECK-NOT: __tsan_write |
| ; CHECK: ret |
| define void @SwiftErrorCall(i8** swifterror) sanitize_thread { |
| %swifterror_addr = alloca swifterror i8* |
| store i8* null, i8** %0 |
| call void @SwiftError(i8** %0) |
| ret void |
| } |
| |
| ; CHECK-LABEL: @NakedTest(i32* %a) |
| ; CHECK-NEXT: call void @foo() |
| ; CHECK-NEXT: %tmp1 = load i32, i32* %a, align 4 |
| ; CHECK-NEXT: ret i32 %tmp1 |
| define i32 @NakedTest(i32* %a) naked sanitize_thread { |
| call void @foo() |
| %tmp1 = load i32, i32* %a, align 4 |
| ret i32 %tmp1 |
| } |
| |
| declare void @foo() nounwind |
| |
| ; CHECK: define internal void @tsan.module_ctor() |
| ; CHECK: call void @__tsan_init() |