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92a77f4b5e
Under NPM, the asan-globals-md analysis is required but cannot be run
within the asan function pass due to module analyses not being able to
run from a function pass. So this pins all tests using "-asan" to the
legacy PM and adds a corresponding RUN line with
-passes='require<asan-globals-md>,function(asan)'.
Now all tests in Instrumentation/AddressSanitizer pass when
-enable-new-pm is by default on.
Tests were automatically converted using the following python script and
failures were manually fixed up.
import sys
for i in sys.argv:
with open(i, 'r') as f:
s = f.read()
with open(i, 'w') as f:
for l in s.splitlines():
if "RUN:" in l and ' -asan -asan-module ' in l and '\\' not in l:
f.write(l.replace(' -asan -asan-module ', ' -asan -asan-module -enable-new-pm=0 '))
f.write('\n')
f.write(l.replace(' -asan -asan-module ', " -passes='require<asan-globals-md>,function(asan),module(asan-module)' "))
f.write('\n')
elif "RUN:" in l and ' -asan ' in l and '\\' not in l:
f.write(l.replace(' -asan ', ' -asan -enable-new-pm=0 '))
f.write('\n')
f.write(l.replace(' -asan ', " -passes='require<asan-globals-md>,function(asan)' "))
f.write('\n')
else:
f.write(l)
f.write('\n')
See https://bugs.llvm.org/show_bug.cgi?id=46611.
Reviewed By: vitalybuka
Differential Revision: https://reviews.llvm.org/D83921
54 lines
2.6 KiB
LLVM
54 lines
2.6 KiB
LLVM
; ASan shouldn't instrument code added by UBSan.
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; RUN: opt < %s -asan -asan-module -enable-new-pm=0 -S | FileCheck %s
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; RUN: opt < %s -passes='asan-pipeline' -S | FileCheck %s
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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"
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target triple = "x86_64-unknown-linux-gnu"
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%struct.A = type { i32 (...)** }
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declare void @__ubsan_handle_dynamic_type_cache_miss(i8*, i64, i64) uwtable
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@__ubsan_vptr_type_cache = external global [128 x i64]
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@.src = private unnamed_addr constant [19 x i8] c"tmp/ubsan/vptr.cpp\00", align 1
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@0 = private unnamed_addr constant { i16, i16, [4 x i8] } { i16 -1, i16 0, [4 x i8] c"'A'\00" }
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@_ZTI1A = external constant i8*
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@1 = private unnamed_addr global { { [19 x i8]*, i32, i32 }, { i16, i16, [4 x i8] }*, i8*, i8 } { { [19 x i8]*, i32, i32 } { [19 x i8]* @.src, i32 2, i32 18 }, { i16, i16, [4 x i8] }* @0, i8* bitcast (i8** @_ZTI1A to i8*), i8 4 }
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define void @_Z3BarP1A(%struct.A* %a) uwtable sanitize_address {
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; CHECK-LABEL: define void @_Z3BarP1A
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entry:
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%0 = bitcast %struct.A* %a to void (%struct.A*)***
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%vtable = load void (%struct.A*)**, void (%struct.A*)*** %0, align 8
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; CHECK: __asan_report_load8
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%1 = load void (%struct.A*)*, void (%struct.A*)** %vtable, align 8
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; CHECK: __asan_report_load8
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%2 = ptrtoint void (%struct.A*)** %vtable to i64
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%3 = xor i64 %2, -303164226014115343, !nosanitize !0
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%4 = mul i64 %3, -7070675565921424023, !nosanitize !0
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%5 = lshr i64 %4, 47, !nosanitize !0
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%6 = xor i64 %4, %2, !nosanitize !0
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%7 = xor i64 %6, %5, !nosanitize !0
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%8 = mul i64 %7, -7070675565921424023, !nosanitize !0
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%9 = lshr i64 %8, 47, !nosanitize !0
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%10 = xor i64 %9, %8, !nosanitize !0
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%11 = mul i64 %10, -7070675565921424023, !nosanitize !0
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%12 = and i64 %11, 127, !nosanitize !0
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%13 = getelementptr inbounds [128 x i64], [128 x i64]* @__ubsan_vptr_type_cache, i64 0, i64 %12, !nosanitize !0
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; CHECK-NOT: __asan_report_load8
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%14 = load i64, i64* %13, align 8, !nosanitize !0
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%15 = icmp eq i64 %14, %11, !nosanitize !0
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br i1 %15, label %cont, label %handler.dynamic_type_cache_miss, !nosanitize !0
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handler.dynamic_type_cache_miss: ; preds = %entry
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%16 = ptrtoint %struct.A* %a to i64, !nosanitize !0
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tail call void @__ubsan_handle_dynamic_type_cache_miss(i8* bitcast ({ { [19 x i8]*, i32, i32 }, { i16, i16, [4 x i8] }*, i8*, i8 }* @1 to i8*), i64 %16, i64 %11) #2, !nosanitize !0
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br label %cont, !nosanitize !0
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cont: ; preds = %handler.dynamic_type_cache_miss, %entry
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tail call void %1(%struct.A* %a)
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; CHECK: ret void
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ret void
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}
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!0 = !{}
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