derek.holloway
7502bf64a4
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48 lines
1.3 KiB
LLVM
48 lines
1.3 KiB
LLVM
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; This test checks that we are not instrumenting sanitizer code.
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; RUN: opt < %s -passes='module(msan)' -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_memory is instrumented.
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; Function Attrs: nounwind uwtable
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define void @instr_sa(ptr %a) sanitize_memory {
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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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; CHECK-LABEL: @instr_sa
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; CHECK: %0 = load i64, ptr @__msan_param_tls
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; Function with disable_sanitizer_instrumentation is not instrumented.
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; Function Attrs: nounwind uwtable
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define void @noinstr_dsi(ptr %a) disable_sanitizer_instrumentation {
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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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; CHECK-LABEL: @noinstr_dsi
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; CHECK-NOT: %0 = load i64, ptr @__msan_param_tls
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; disable_sanitizer_instrumentation takes precedence over sanitize_memory.
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; Function Attrs: nounwind uwtable
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define void @noinstr_dsi_sa(ptr %a) disable_sanitizer_instrumentation sanitize_memory {
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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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; CHECK-LABEL: @noinstr_dsi_sa
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; CHECK-NOT: %0 = load i64, ptr @__msan_param_tls
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