derek.holloway
7502bf64a4
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104 lines
3.6 KiB
LLVM
104 lines
3.6 KiB
LLVM
; RUN: opt < %s -passes=dfsan -dfsan-combine-pointer-labels-on-store=1 -S | FileCheck %s --check-prefixes=CHECK,COMBINE_PTR_LABEL
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; RUN: opt < %s -passes=dfsan -dfsan-combine-pointer-labels-on-store=0 -S | FileCheck %s --check-prefixes=CHECK,NO_COMBINE_PTR_LABEL
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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-S128"
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target triple = "x86_64-unknown-linux-gnu"
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define void @store0({} %v, ptr %p) {
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; CHECK-LABEL: @store0.dfsan
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; CHECK: store {} %v, ptr %p
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; CHECK-NOT: store
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; CHECK: ret void
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store {} %v, ptr %p
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ret void
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}
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define void @store8(i8 %v, ptr %p) {
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; CHECK-LABEL: @store8.dfsan
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; NO_COMBINE_PTR_LABEL: load i8, ptr @__dfsan_arg_tls
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; COMBINE_PTR_LABEL: load i8, ptr getelementptr (i8, ptr @__dfsan_arg_tls, i64 2), align 2
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; COMBINE_PTR_LABEL: load i8, ptr @__dfsan_arg_tls
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; COMBINE_PTR_LABEL: or i8
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; CHECK: ptrtoint ptr {{.*}} i64
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; CHECK-NEXT: xor i64
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; CHECK-NEXT: inttoptr i64 {{.*}} ptr
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; CHECK-NEXT: getelementptr i8, ptr
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; CHECK-NEXT: store i8
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; CHECK-NEXT: store i8 %v, ptr %p
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; CHECK-NEXT: ret void
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store i8 %v, ptr %p
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ret void
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}
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define void @store16(i16 %v, ptr %p) {
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; CHECK-LABEL: @store16.dfsan
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; NO_COMBINE_PTR_LABEL: load i8, ptr @__dfsan_arg_tls
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; COMBINE_PTR_LABEL: load i8, ptr getelementptr (i8, ptr @__dfsan_arg_tls, i64 2), align 2
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; COMBINE_PTR_LABEL: load i8, ptr @__dfsan_arg_tls
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; COMBINE_PTR_LABEL: or i8
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; CHECK: ptrtoint ptr {{.*}} i64
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; CHECK-NEXT: xor i64
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; CHECK-NEXT: inttoptr i64 {{.*}} ptr
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; CHECK-NEXT: getelementptr i8, ptr
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; CHECK-NEXT: store i8
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; CHECK-NEXT: getelementptr i8, ptr
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; CHECK-NEXT: store i8
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; CHECK-NEXT: store i16 %v, ptr %p
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; CHECK-NEXT: ret void
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store i16 %v, ptr %p
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ret void
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}
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define void @store32(i32 %v, ptr %p) {
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; CHECK-LABEL: @store32.dfsan
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; NO_COMBINE_PTR_LABEL: load i8, ptr @__dfsan_arg_tls
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; COMBINE_PTR_LABEL: load i8, ptr getelementptr (i8, ptr @__dfsan_arg_tls, i64 2), align 2
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; COMBINE_PTR_LABEL: load i8, ptr @__dfsan_arg_tls
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; COMBINE_PTR_LABEL: or i8
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; CHECK: ptrtoint ptr {{.*}} i64
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; CHECK-NEXT: xor i64
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; CHECK-NEXT: inttoptr i64 {{.*}} ptr
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; CHECK-NEXT: getelementptr i8, ptr
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; CHECK-NEXT: store i8
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; CHECK-NEXT: getelementptr i8, ptr
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; CHECK-NEXT: store i8
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; CHECK-NEXT: getelementptr i8, ptr
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; CHECK-NEXT: store i8
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; CHECK-NEXT: getelementptr i8, ptr
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; CHECK-NEXT: store i8
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; CHECK-NEXT: store i32 %v, ptr %p
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; CHECK-NEXT: ret void
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store i32 %v, ptr %p
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ret void
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}
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define void @store64(i64 %v, ptr %p) {
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; CHECK-LABEL: @store64.dfsan
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; NO_COMBINE_PTR_LABEL: load i8, ptr @__dfsan_arg_tls
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; COMBINE_PTR_LABEL: load i8, ptr getelementptr (i8, ptr @__dfsan_arg_tls, i64 2), align 2
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; COMBINE_PTR_LABEL: load i8, ptr @__dfsan_arg_tls
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; COMBINE_PTR_LABEL: or i8
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; CHECK: ptrtoint ptr {{.*}} i64
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; CHECK-NEXT: xor i64
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; CHECK-NEXT: inttoptr i64 {{.*}} ptr
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; CHECK-COUNT-8: insertelement {{.*}} i8
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; CHECK-NEXT: getelementptr <8 x i8>
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; CHECK-NEXT: store <8 x i8>
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; CHECK-NEXT: store i64 %v, ptr %p
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; CHECK-NEXT: ret void
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store i64 %v, ptr %p
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ret void
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}
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define void @store_zero(ptr %p) {
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; CHECK-LABEL: @store_zero.dfsan
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; NO_COMBINE_PTR_LABEL: store i32 0, ptr {{.*}}
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store i32 0, ptr %p
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ret void
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}
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