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faa9b1561e
Do not instrument globals that are placed in sections containing "__llvm" in their name. This fixes a bug in ASan / PGO interoperability. ASan interferes with LLVM's PGO, which places its globals into a special section, which is memcpy-ed by the linker as a whole. When those goals are instrumented, ASan's memcpy wrapper reports an issue. http://reviews.llvm.org/D10541 llvm-svn: 240723
16 lines
662 B
LLVM
16 lines
662 B
LLVM
; This test checks that we are not instrumenting globals in llvm.metadata
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; and other llvm internal globals.
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; RUN: opt < %s -asan -asan-module -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-apple-macosx10.10.0"
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@.str_noinst = private unnamed_addr constant [4 x i8] c"aaa\00", section "llvm.metadata"
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@.str_noinst_prof = private unnamed_addr constant [4 x i8] c"aaa\00", section "__DATA,__llvm_covmap"
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@.str_inst = private unnamed_addr constant [4 x i8] c"aaa\00"
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; CHECK-NOT: {{asan_gen.*str_noinst}}
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; CHECK-NOT: {{asan_gen.*str_noinst_prof}}
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; CHECK: {{asan_gen.*str_inst}}
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; CHECK: @asan.module_ctor
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