1; RUN: opt < %s -S -passes="msan<track-origins=1>" 2>&1 | FileCheck %s --implicit-check-not "call void @llvm.mem" --implicit-check-not " load" --implicit-check-not " store" 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-S128" 4target triple = "x86_64-unknown-linux-gnu" 5 6declare void @FnByVal(ptr byval(i128) %p); 7declare void @Fn(ptr %p); 8 9define i128 @ByValArgument(i32, ptr byval(i128) %p) sanitize_memory { 10; CHECK-LABEL: @ByValArgument( 11; CHECK-NEXT: entry: 12; CHECK: call void @llvm.memcpy.p0.p0.i64(ptr align 8 %[[#]], ptr align 8 inttoptr (i64 add (i64 ptrtoint (ptr @__msan_param_tls to i64), i64 8) to ptr), i64 16, i1 false) 13; CHECK: call void @llvm.memcpy.p0.p0.i64(ptr align 4 %[[#]], ptr align 4 inttoptr (i64 add (i64 ptrtoint (ptr @__msan_param_origin_tls to i64), i64 8) to ptr), i64 16, i1 false) 14; CHECK: [[X:%.*]] = load i128, ptr %p, align 8 15; CHECK: [[_MSLD:%.*]] = load i128, ptr %[[#]], align 8 16; CHECK: %[[#]] = load i32, ptr %[[#]], align 8 17; CHECK: store i128 [[_MSLD]], ptr @__msan_retval_tls, align 8 18; CHECK: store i32 %[[#]], ptr @__msan_retval_origin_tls, align 4 19; CHECK: ret i128 [[X]] 20; 21entry: 22 %x = load i128, ptr %p 23 ret i128 %x 24} 25 26define i128 @ByValArgumentNoSanitize(i32, ptr byval(i128) %p) { 27; CHECK-LABEL: @ByValArgumentNoSanitize( 28; CHECK-NEXT: entry: 29; CHECK: call void @llvm.memset.p0.i64(ptr align 8 %[[#]], i8 0, i64 16, i1 false) 30; CHECK: [[X:%.*]] = load i128, ptr %p, align 8 31; CHECK: store i128 0, ptr @__msan_retval_tls, align 8 32; CHECK: store i32 0, ptr @__msan_retval_origin_tls, align 4 33; CHECK: ret i128 [[X]] 34; 35entry: 36 %x = load i128, ptr %p 37 ret i128 %x 38} 39 40define void @ByValForward(i32, ptr byval(i128) %p) sanitize_memory { 41; CHECK-LABEL: @ByValForward( 42; CHECK-NEXT: entry: 43; CHECK: call void @llvm.memcpy.p0.p0.i64(ptr align 8 %[[#]], ptr align 8 inttoptr (i64 add (i64 ptrtoint (ptr @__msan_param_tls to i64), i64 8) to ptr), i64 16, i1 false) 44; CHECK: call void @llvm.memcpy.p0.p0.i64(ptr align 4 %[[#]], ptr align 4 inttoptr (i64 add (i64 ptrtoint (ptr @__msan_param_origin_tls to i64), i64 8) to ptr), i64 16, i1 false) 45; CHECK: store i64 0, ptr @__msan_param_tls, align 8 46; CHECK: call void @Fn(ptr %p) 47; CHECK: ret void 48; 49entry: 50 call void @Fn(ptr %p) 51 ret void 52} 53 54define void @ByValForwardNoSanitize(i32, ptr byval(i128) %p) { 55; CHECK-LABEL: @ByValForwardNoSanitize( 56; CHECK-NEXT: entry: 57; CHECK: call void @llvm.memset.p0.i64(ptr align 8 %[[#]], i8 0, i64 16, i1 false) 58; CHECK: store i64 0, ptr @__msan_param_tls, align 8 59; CHECK: call void @Fn(ptr %p) 60; CHECK: ret void 61; 62entry: 63 call void @Fn(ptr %p) 64 ret void 65} 66 67define void @ByValForwardByVal(i32, ptr byval(i128) %p) sanitize_memory { 68; CHECK-LABEL: @ByValForwardByVal( 69; CHECK-NEXT: entry: 70; CHECK: call void @llvm.memcpy.p0.p0.i64(ptr align 8 %[[#]], ptr align 8 inttoptr (i64 add (i64 ptrtoint (ptr @__msan_param_tls to i64), i64 8) to ptr), i64 16, i1 false) 71; CHECK: call void @llvm.memcpy.p0.p0.i64(ptr align 4 %[[#]], ptr align 4 inttoptr (i64 add (i64 ptrtoint (ptr @__msan_param_origin_tls to i64), i64 8) to ptr), i64 16, i1 false) 72; CHECK: call void @llvm.memcpy.p0.p0.i64(ptr @__msan_param_tls, ptr %[[#]], i64 16, i1 false) 73; CHECK: call void @llvm.memcpy.p0.p0.i64(ptr align 4 @__msan_param_origin_tls, ptr align 4 %[[#]], i64 16, i1 false) 74; CHECK: call void @FnByVal(ptr byval(i128) %p) 75; CHECK: ret void 76; 77entry: 78 call void @FnByVal(ptr byval(i128) %p) 79 ret void 80} 81 82define void @ByValForwardByValNoSanitize(i32, ptr byval(i128) %p) { 83; CHECK-LABEL: @ByValForwardByValNoSanitize( 84; CHECK-NEXT: entry: 85; CHECK: call void @llvm.memset.p0.i64(ptr align 8 %[[#]], i8 0, i64 16, i1 false) 86; CHECK: call void @llvm.memset.p0.i64(ptr @__msan_param_tls, i8 0, i64 16, i1 false) 87; CHECK: call void @FnByVal(ptr byval(i128) %p) 88; CHECK: ret void 89; 90entry: 91 call void @FnByVal(ptr byval(i128) %p) 92 ret void 93} 94 95declare void @FnByVal8(ptr byval(i8) %p); 96declare void @Fn8(ptr %p); 97 98define i8 @ByValArgument8(i32, ptr byval(i8) %p) sanitize_memory { 99; CHECK-LABEL: @ByValArgument8( 100; CHECK-NEXT: entry: 101; CHECK: call void @llvm.memcpy.p0.p0.i64(ptr align 1 %[[#]], ptr align 1 inttoptr (i64 add (i64 ptrtoint (ptr @__msan_param_tls to i64), i64 8) to ptr), i64 1, i1 false) 102; CHECK: call void @llvm.memcpy.p0.p0.i64(ptr align 4 %[[#]], ptr align 4 inttoptr (i64 add (i64 ptrtoint (ptr @__msan_param_origin_tls to i64), i64 8) to ptr), i64 4, i1 false) 103; CHECK: [[X:%.*]] = load i8, ptr %p, align 1 104; CHECK: [[_MSLD:%.*]] = load i8, ptr %[[#]], align 1 105; CHECK: %[[#]] = load i32, ptr %[[#]], align 4 106; CHECK: store i8 [[_MSLD]], ptr @__msan_retval_tls, align 8 107; CHECK: store i32 %[[#]], ptr @__msan_retval_origin_tls, align 4 108; CHECK: ret i8 [[X]] 109; 110entry: 111 %x = load i8, ptr %p 112 ret i8 %x 113} 114 115define i8 @ByValArgumentNoSanitize8(i32, ptr byval(i8) %p) { 116; CHECK-LABEL: @ByValArgumentNoSanitize8( 117; CHECK-NEXT: entry: 118; CHECK: call void @llvm.memset.p0.i64(ptr align 1 %[[#]], i8 0, i64 1, i1 false) 119; CHECK: [[X:%.*]] = load i8, ptr %p, align 1 120; CHECK: store i8 0, ptr @__msan_retval_tls, align 8 121; CHECK: store i32 0, ptr @__msan_retval_origin_tls, align 4 122; CHECK: ret i8 [[X]] 123; 124entry: 125 %x = load i8, ptr %p 126 ret i8 %x 127} 128 129define void @ByValForward8(i32, ptr byval(i8) %p) sanitize_memory { 130; CHECK-LABEL: @ByValForward8( 131; CHECK-NEXT: entry: 132; CHECK: call void @llvm.memcpy.p0.p0.i64(ptr align 1 %[[#]], ptr align 1 inttoptr (i64 add (i64 ptrtoint (ptr @__msan_param_tls to i64), i64 8) to ptr), i64 1, i1 false) 133; CHECK: call void @llvm.memcpy.p0.p0.i64(ptr align 4 %[[#]], ptr align 4 inttoptr (i64 add (i64 ptrtoint (ptr @__msan_param_origin_tls to i64), i64 8) to ptr), i64 4, i1 false) 134; CHECK: store i64 0, ptr @__msan_param_tls, align 8 135; CHECK: call void @Fn8(ptr %p) 136; CHECK: ret void 137; 138entry: 139 call void @Fn8(ptr %p) 140 ret void 141} 142 143define void @ByValForwardNoSanitize8(i32, ptr byval(i8) %p) { 144; CHECK-LABEL: @ByValForwardNoSanitize8( 145; CHECK-NEXT: entry: 146; CHECK: call void @llvm.memset.p0.i64(ptr align 1 %[[#]], i8 0, i64 1, i1 false) 147; CHECK: store i64 0, ptr @__msan_param_tls, align 8 148; CHECK: call void @Fn8(ptr %p) 149; CHECK: ret void 150; 151entry: 152 call void @Fn8(ptr %p) 153 ret void 154} 155 156define void @ByValForwardByVal8(i32, ptr byval(i8) %p) sanitize_memory { 157; CHECK-LABEL: @ByValForwardByVal8( 158; CHECK-NEXT: entry: 159; CHECK: call void @llvm.memcpy.p0.p0.i64(ptr align 1 %[[#]], ptr align 1 inttoptr (i64 add (i64 ptrtoint (ptr @__msan_param_tls to i64), i64 8) to ptr), i64 1, i1 false) 160; CHECK: call void @llvm.memcpy.p0.p0.i64(ptr align 4 %[[#]], ptr align 4 inttoptr (i64 add (i64 ptrtoint (ptr @__msan_param_origin_tls to i64), i64 8) to ptr), i64 4, i1 false) 161; CHECK: call void @llvm.memcpy.p0.p0.i64(ptr @__msan_param_tls, ptr %[[#]], i64 1, i1 false) 162; CHECK: call void @llvm.memcpy.p0.p0.i64(ptr align 4 @__msan_param_origin_tls, ptr align 4 %[[#]], i64 4, i1 false) 163; CHECK: call void @FnByVal8(ptr byval(i8) %p) 164; CHECK: ret void 165; 166entry: 167 call void @FnByVal8(ptr byval(i8) %p) 168 ret void 169} 170 171define void @ByValForwardByValNoSanitize8(i32, ptr byval(i8) %p) { 172; CHECK-LABEL: @ByValForwardByValNoSanitize8( 173; CHECK-NEXT: entry: 174; CHECK: call void @llvm.memset.p0.i64(ptr align 1 %[[#]], i8 0, i64 1, i1 false) 175; CHECK: call void @llvm.memset.p0.i64(ptr @__msan_param_tls, i8 0, i64 1, i1 false) 176; CHECK: call void @FnByVal8(ptr byval(i8) %p) 177; CHECK: ret void 178; 179entry: 180 call void @FnByVal8(ptr byval(i8) %p) 181 ret void 182} 183 184