1; RUN: opt < %s -passes='function(tsan),module(tsan-module)' -S | FileCheck %s 2 3target 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" 4target triple = "x86_64-unknown-linux-gnu" 5 6define i32 @read_4_bytes(ptr %a) sanitize_thread { 7entry: 8 %tmp1 = load i32, ptr %a, align 4 9 ret i32 %tmp1 10} 11 12; CHECK: @llvm.used = appending global [1 x ptr] [ptr @tsan.module_ctor] 13; CHECK: @llvm.global_ctors = {{.*}}@tsan.module_ctor 14 15; CHECK: define i32 @read_4_bytes(ptr %a) 16; CHECK: call void @__tsan_func_entry(ptr %0) 17; CHECK-NEXT: call void @__tsan_read4(ptr %a) 18; CHECK-NEXT: %tmp1 = load i32, ptr %a, align 4 19; CHECK-NEXT: call void @__tsan_func_exit() 20; CHECK: ret i32 21 22 23declare void @llvm.memcpy.p0.p0.i64(ptr nocapture, ptr nocapture, i64, i1) 24declare void @llvm.memcpy.inline.p0.p0.i64(ptr nocapture, ptr nocapture, i64, i1) 25declare void @llvm.memmove.p0.p0.i64(ptr nocapture, ptr nocapture, i64, i1) 26declare void @llvm.memset.p0.i64(ptr nocapture, i8, i64, i1) 27declare void @llvm.memset.inline.p0.i64(ptr nocapture, i8, i64, i1) 28 29 30; Check that tsan converts mem intrinsics back to function calls. 31 32define void @MemCpyTest(ptr nocapture %x, ptr nocapture %y) sanitize_thread { 33entry: 34 tail call void @llvm.memcpy.p0.p0.i64(ptr align 4 %x, ptr align 4 %y, i64 16, i1 false) 35 ret void 36; CHECK: define void @MemCpyTest 37; CHECK: call ptr @__tsan_memcpy 38; CHECK: ret void 39} 40 41define void @MemCpyInlineTest(ptr nocapture %x, ptr nocapture %y) sanitize_thread { 42entry: 43 tail call void @llvm.memcpy.inline.p0.p0.i64(ptr align 4 %x, ptr align 4 %y, i64 16, i1 false) 44 ret void 45; CHECK: define void @MemCpyInlineTest 46; CHECK: call ptr @__tsan_memcpy 47; CHECK: ret void 48} 49 50define void @MemMoveTest(ptr nocapture %x, ptr nocapture %y) sanitize_thread { 51entry: 52 tail call void @llvm.memmove.p0.p0.i64(ptr align 4 %x, ptr align 4 %y, i64 16, i1 false) 53 ret void 54; CHECK: define void @MemMoveTest 55; CHECK: call ptr @__tsan_memmove 56; CHECK: ret void 57} 58 59define void @MemSetTest(ptr nocapture %x) sanitize_thread { 60entry: 61 tail call void @llvm.memset.p0.i64(ptr align 4 %x, i8 77, i64 16, i1 false) 62 ret void 63; CHECK: define void @MemSetTest 64; CHECK: call ptr @__tsan_memset 65; CHECK: ret void 66} 67 68define void @MemSetInlineTest(ptr nocapture %x) sanitize_thread { 69entry: 70 tail call void @llvm.memset.inline.p0.i64(ptr align 4 %x, i8 77, i64 16, i1 false) 71 ret void 72; CHECK: define void @MemSetInlineTest 73; CHECK: call ptr @__tsan_memset 74; CHECK: ret void 75} 76 77; CHECK-LABEL: @SwiftError 78; CHECK-NOT: __tsan_read 79; CHECK-NOT: __tsan_write 80; CHECK: ret 81define void @SwiftError(ptr swifterror) sanitize_thread { 82 %swifterror_ptr_value = load ptr, ptr %0 83 store ptr null, ptr %0 84 %swifterror_addr = alloca swifterror ptr 85 %swifterror_ptr_value_2 = load ptr, ptr %swifterror_addr 86 store ptr null, ptr %swifterror_addr 87 ret void 88} 89 90; CHECK-LABEL: @SwiftErrorCall 91; CHECK-NOT: __tsan_read 92; CHECK-NOT: __tsan_write 93; CHECK: ret 94define void @SwiftErrorCall(ptr swifterror) sanitize_thread { 95 %swifterror_addr = alloca swifterror ptr 96 store ptr null, ptr %0 97 call void @SwiftError(ptr %0) 98 ret void 99} 100 101; CHECK-LABEL: @NakedTest() 102; CHECK-NEXT: %a = call ptr @foo() 103; CHECK-NEXT: %tmp1 = load i32, ptr %a, align 4 104; CHECK-NEXT: ret i32 %tmp1 105define i32 @NakedTest() naked sanitize_thread { 106 %a = call ptr @foo() 107 %tmp1 = load i32, ptr %a, align 4 108 ret i32 %tmp1 109} 110 111; vscale is unsupported, just don't crash here. 112define void @test_load_store_i32(ptr %a, ptr %b) sanitize_thread { 113; CHECK-LABEL: define void @test_load_store_i32( 114; CHECK-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) 115; CHECK-NEXT: [[TMP1:%.*]] = load <vscale x 4 x i32>, ptr [[A]], align 16 116; CHECK-NEXT: store <vscale x 4 x i32> [[TMP1]], ptr [[B]], align 16 117; CHECK-NEXT: ret void 118 %1 = load <vscale x 4 x i32>, ptr %a 119 store <vscale x 4 x i32> %1, ptr %b 120 ret void 121} 122 123declare void @foo() nounwind 124 125; CHECK: define internal void @tsan.module_ctor() 126; CHECK: call void @__tsan_init() 127