7c2f276269
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
37 lines
1.1 KiB
LLVM
37 lines
1.1 KiB
LLVM
; Test basic address sanitizer instrumentation.
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;
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; RUN: opt -asan -asan-module -enable-new-pm=0 -S < %s | FileCheck %s
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; RUN: opt -passes='asan-pipeline' -S < %s | FileCheck %s
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target triple = "x86_64-pc-windows-msvc"
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; CHECK: @llvm.global_ctors = {{.*}}@asan.module_ctor
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define i32 @test_load(i32* %a) sanitize_address {
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; First instrumentation in the function must be to load the dynamic shadow
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; address into a local variable.
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; CHECK-LABEL: @test_load
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; CHECK: entry:
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; CHECK-NEXT: %[[SHADOW:[^ ]*]] = load i64, i64* @__asan_shadow_memory_dynamic_address
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; Shadow address is loaded and added into the whole offset computation.
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; CHECK: add i64 %{{.*}}, %[[SHADOW]]
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entry:
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%tmp1 = load i32, i32* %a, align 4
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ret i32 %tmp1
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}
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define i32 @__asan_options(i32* %a) sanitize_address {
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; Asan functions are not instrumented. Asan function may be called by
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; __asan_init before the shadow initialisation, which may lead to incorrect
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; behavior of the instrumented code.
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; CHECK-LABEL: @__asan_options
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; CHECK: entry:
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; CHECK-NEXT: %tmp1 = load i32, i32* %a, align 4
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; CHECK-NEXT: ret i32 %tmp1
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entry:
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%tmp1 = load i32, i32* %a, align 4
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ret i32 %tmp1
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}
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