derek.holloway
7502bf64a4
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59 lines
2.7 KiB
LLVM
59 lines
2.7 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-attributes --check-globals all --version 5
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; This test checks in the second run, function is not instrumented again.
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; RUN: opt < %s -passes=asan,asan -S | FileCheck %s
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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; Function with sanitize_address is instrumented.
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; Function Attrs: nounwind uwtable
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;.
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; CHECK: @llvm.used = appending global [1 x ptr] [ptr @asan.module_ctor], section "llvm.metadata"
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; CHECK: @___asan_globals_registered = common hidden global i64 0
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; CHECK: @__start_asan_globals = extern_weak hidden global i64
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; CHECK: @__stop_asan_globals = extern_weak hidden global i64
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; CHECK: @llvm.global_ctors = appending global [1 x { i32, ptr, ptr }] [{ i32, ptr, ptr } { i32 1, ptr @asan.module_ctor, ptr @asan.module_ctor }]
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;.
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define void @instr_sa(ptr %a) sanitize_address {
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; CHECK: Function Attrs: sanitize_address
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; CHECK-LABEL: define void @instr_sa(
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; CHECK-SAME: ptr [[A:%.*]]) #[[ATTR0:[0-9]+]] {
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; CHECK-NEXT: [[ENTRY:.*:]]
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; CHECK-NEXT: [[TMP0:%.*]] = ptrtoint ptr [[A]] to i64
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; CHECK-NEXT: [[TMP1:%.*]] = lshr i64 [[TMP0]], 3
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; CHECK-NEXT: [[TMP2:%.*]] = add i64 [[TMP1]], 2147450880
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; CHECK-NEXT: [[TMP3:%.*]] = inttoptr i64 [[TMP2]] to ptr
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; CHECK-NEXT: [[TMP4:%.*]] = load i8, ptr [[TMP3]], align 1
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; CHECK-NEXT: [[TMP5:%.*]] = icmp ne i8 [[TMP4]], 0
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; CHECK-NEXT: br i1 [[TMP5]], label %[[BB6:.*]], label %[[BB12:.*]], !prof [[PROF1:![0-9]+]]
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; CHECK: [[BB6]]:
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; CHECK-NEXT: [[TMP7:%.*]] = and i64 [[TMP0]], 7
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; CHECK-NEXT: [[TMP8:%.*]] = add i64 [[TMP7]], 3
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; CHECK-NEXT: [[TMP9:%.*]] = trunc i64 [[TMP8]] to i8
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; CHECK-NEXT: [[TMP10:%.*]] = icmp sge i8 [[TMP9]], [[TMP4]]
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; CHECK-NEXT: br i1 [[TMP10]], label %[[BB11:.*]], label %[[BB12]]
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; CHECK: [[BB11]]:
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; CHECK-NEXT: call void @__asan_report_load4(i64 [[TMP0]]) #[[ATTR3:[0-9]+]]
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; CHECK-NEXT: unreachable
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; CHECK: [[BB12]]:
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; CHECK-NEXT: [[TMP1:%.*]] = load i32, ptr [[A]], align 4
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; CHECK-NEXT: [[TMP2:%.*]] = add i32 [[TMP1]], 1
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; CHECK-NEXT: store i32 [[TMP2]], ptr [[A]], align 4
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; CHECK-NEXT: ret void
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;
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entry:
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%tmp1 = load i32, ptr %a, align 4
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%tmp2 = add i32 %tmp1, 1
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store i32 %tmp2, ptr %a, align 4
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ret void
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}
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;.
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; CHECK: attributes #[[ATTR0]] = { sanitize_address }
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; CHECK: attributes #[[ATTR1:[0-9]+]] = { nocallback nocreateundeforpoison nofree nosync nounwind speculatable willreturn memory(none) }
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; CHECK: attributes #[[ATTR2:[0-9]+]] = { nounwind }
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; CHECK: attributes #[[ATTR3]] = { nomerge }
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;.
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; CHECK: [[META0:![0-9]+]] = !{i32 4, !"nosanitize_address", i32 1}
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; CHECK: [[PROF1]] = !{!"branch_weights", i32 1, i32 1048575}
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;.
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