1; RUN: opt < %s -dfsan -dfsan-combine-pointer-labels-on-store=1 -S | FileCheck %s --check-prefixes=CHECK,COMBINE_PTR_LABEL 2; RUN: opt < %s -dfsan -dfsan-combine-pointer-labels-on-store=0 -S | FileCheck %s --check-prefixes=CHECK,NO_COMBINE_PTR_LABEL 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 6; CHECK: @__dfsan_shadow_width_bits = weak_odr constant i32 [[#SBITS:]] 7; CHECK: @__dfsan_shadow_width_bytes = weak_odr constant i32 [[#SBYTES:]] 8 9define void @store0({} %v, {}* %p) { 10 ; CHECK-LABEL: @store0.dfsan 11 ; CHECK: store {} %v, {}* %p 12 ; CHECK-NOT: store 13 ; CHECK: ret void 14 15 store {} %v, {}* %p 16 ret void 17} 18 19define void @store8(i8 %v, i8* %p) { 20 ; CHECK-LABEL: @store8.dfsan 21 ; CHECK: load i[[#SBITS]], i[[#SBITS]]* {{.*}} @__dfsan_arg_tls 22 ; COMBINE_PTR_LABEL: load i[[#SBITS]], i[[#SBITS]]* {{.*}} @__dfsan_arg_tls 23 ; COMBINE_PTR_LABEL: or i[[#SBITS]] 24 ; CHECK: ptrtoint i8* {{.*}} i64 25 ; CHECK-NEXT: xor i64 26 ; CHECK-NEXT: inttoptr i64 {{.*}} i[[#SBITS]]* 27 ; CHECK-NEXT: getelementptr i[[#SBITS]], i[[#SBITS]]* 28 ; CHECK-NEXT: store i[[#SBITS]] 29 ; CHECK-NEXT: store i8 %v, i8* %p 30 ; CHECK-NEXT: ret void 31 32 store i8 %v, i8* %p 33 ret void 34} 35 36define void @store16(i16 %v, i16* %p) { 37 ; CHECK-LABEL: @store16.dfsan 38 ; CHECK: load i[[#SBITS]], i[[#SBITS]]* {{.*}} @__dfsan_arg_tls 39 ; COMBINE_PTR_LABEL: load i[[#SBITS]], i[[#SBITS]]* {{.*}} @__dfsan_arg_tls 40 ; COMBINE_PTR_LABEL: or i[[#SBITS]] 41 ; CHECK: ptrtoint i16* {{.*}} i64 42 ; CHECK-NEXT: xor i64 43 ; CHECK-NEXT: inttoptr i64 {{.*}} i[[#SBITS]]* 44 ; CHECK-NEXT: getelementptr i[[#SBITS]], i[[#SBITS]]* 45 ; CHECK-NEXT: store i[[#SBITS]] 46 ; CHECK-NEXT: getelementptr i[[#SBITS]], i[[#SBITS]]* 47 ; CHECK-NEXT: store i[[#SBITS]] 48 ; CHECK-NEXT: store i16 %v, i16* %p 49 ; CHECK-NEXT: ret void 50 51 store i16 %v, i16* %p 52 ret void 53} 54 55define void @store32(i32 %v, i32* %p) { 56 ; CHECK-LABEL: @store32.dfsan 57 ; CHECK: load i[[#SBITS]], i[[#SBITS]]* {{.*}} @__dfsan_arg_tls 58 ; COMBINE_PTR_LABEL: load i[[#SBITS]], i[[#SBITS]]* {{.*}} @__dfsan_arg_tls 59 ; COMBINE_PTR_LABEL: or i[[#SBITS]] 60 ; CHECK: ptrtoint i32* {{.*}} i64 61 ; CHECK-NEXT: xor i64 62 ; CHECK-NEXT: inttoptr i64 {{.*}} i[[#SBITS]]* 63 ; CHECK-NEXT: getelementptr i[[#SBITS]], i[[#SBITS]]* 64 ; CHECK-NEXT: store i[[#SBITS]] 65 ; CHECK-NEXT: getelementptr i[[#SBITS]], i[[#SBITS]]* 66 ; CHECK-NEXT: store i[[#SBITS]] 67 ; CHECK-NEXT: getelementptr i[[#SBITS]], i[[#SBITS]]* 68 ; CHECK-NEXT: store i[[#SBITS]] 69 ; CHECK-NEXT: getelementptr i[[#SBITS]], i[[#SBITS]]* 70 ; CHECK-NEXT: store i[[#SBITS]] 71 ; CHECK-NEXT: store i32 %v, i32* %p 72 ; CHECK-NEXT: ret void 73 74 store i32 %v, i32* %p 75 ret void 76} 77 78define void @store64(i64 %v, i64* %p) { 79 ; CHECK-LABEL: @store64.dfsan 80 ; CHECK: load i[[#SBITS]], i[[#SBITS]]* {{.*}} @__dfsan_arg_tls 81 ; COMBINE_PTR_LABEL: load i[[#SBITS]], i[[#SBITS]]* {{.*}} @__dfsan_arg_tls 82 ; COMBINE_PTR_LABEL: or i[[#SBITS]] 83 ; CHECK: ptrtoint i64* {{.*}} i64 84 ; CHECK-NEXT: xor i64 85 ; CHECK-NEXT: inttoptr i64 {{.*}} i[[#SBITS]]* 86 ; CHECK-COUNT-8: insertelement {{.*}} i[[#SBITS]] 87 ; CHECK-NEXT: bitcast i[[#SBITS]]* {{.*}} <8 x i[[#SBITS]]>* 88 ; CHECK-NEXT: getelementptr <8 x i[[#SBITS]]> 89 ; CHECK-NEXT: store <8 x i[[#SBITS]]> 90 ; CHECK-NEXT: store i64 %v, i64* %p 91 ; CHECK-NEXT: ret void 92 93 store i64 %v, i64* %p 94 ret void 95} 96 97define void @store_zero(i32* %p) { 98 ; CHECK-LABEL: @store_zero.dfsan 99 ; NO_COMBINE_PTR_LABEL: bitcast i[[#SBITS]]* {{.*}} to i[[#mul(4, SBITS)]]* 100 ; NO_COMBINE_PTR_LABEL: store i[[#mul(4, SBITS)]] 0, i[[#mul(4, SBITS)]]* {{.*}} 101 store i32 0, i32* %p 102 ret void 103} 104