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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
57 lines
2.8 KiB
LLVM
57 lines
2.8 KiB
LLVM
; This check verifies that arguments passed by value get redzones.
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; RUN: opt < %s -asan -enable-new-pm=0 -asan-realign-stack=32 -S | FileCheck %s
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; RUN: opt < %s -passes='asan-function-pipeline' -asan-realign-stack=32 -S | FileCheck %s
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; RUN: opt < %s -asan -enable-new-pm=0 -asan-realign-stack=32 -asan-force-dynamic-shadow -S | FileCheck %s
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; RUN: opt < %s -passes='asan-function-pipeline' -asan-realign-stack=32 -asan-force-dynamic-shadow -S | FileCheck %s
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; RUN: opt < %s -asan -enable-new-pm=0 -asan-realign-stack=32 -asan-mapping-scale=5 -S | FileCheck %s
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; RUN: opt < %s -passes='asan-function-pipeline' -asan-realign-stack=32 -asan-mapping-scale=5 -S | FileCheck %s
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; RUN: opt < %s -asan -enable-new-pm=0 -asan-realign-stack=32 -asan-force-dynamic-shadow -asan-mapping-scale=5 -S | FileCheck %s
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; RUN: opt < %s -passes='asan-function-pipeline' -asan-realign-stack=32 -asan-force-dynamic-shadow -asan-mapping-scale=5 -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 { [8 x i32] }
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declare i32 @bar(%struct.A*)
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; Test behavior for named argument with explicit alignment. The memcpy and
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; alloca alignments should match the explicit alignment of 64.
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define void @foo(%struct.A* byval align 64 %a) sanitize_address {
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entry:
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; CHECK-LABEL: foo
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; CHECK: call i64 @__asan_stack_malloc
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; CHECK: alloca i8, i64 {{.*}} align 64
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; CHECK: [[copyPtr:%[^ \t]+]] = inttoptr i64 %{{[^ \t]+}} to %struct.A*
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; CHECK: [[copyBytePtr:%[^ \t]+]] = bitcast %struct.A* [[copyPtr]]
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; CHECK: [[aBytePtr:%[^ \t]+]] = bitcast %struct.A* %a
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; CHECK: call void @llvm.memcpy{{[^%]+}}[[copyBytePtr]]{{[^%]+}} align 64 [[aBytePtr]],{{[^,]+}},
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; CHECK: call i32 @bar(%struct.A* [[copyPtr]])
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; CHECK: ret void
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%call = call i32 @bar(%struct.A* %a)
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ret void
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}
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; Test behavior for unnamed argument without explicit alignment. In this case,
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; the first argument is referenced by the identifier %0 and the ABI requires a
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; minimum alignment of 4 bytes since struct.A contains i32s which have 4-byte
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; alignment. However, the alloca alignment will be 32 since that is the value
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; passed via the -asan-realign-stack option, which is greater than 4.
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define void @baz(%struct.A* byval) sanitize_address {
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entry:
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; CHECK-LABEL: baz
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; CHECK: call i64 @__asan_stack_malloc
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; CHECK: alloca i8, i64 {{.*}} align 32
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; CHECK: [[copyPtr:%[^ \t]+]] = inttoptr i64 %{{[^ \t]+}} to %struct.A*
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; CHECK: [[copyBytePtr:%[^ \t]+]] = bitcast %struct.A* [[copyPtr]]
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; CHECK: [[aBytePtr:%[^ \t]+]] = bitcast %struct.A* %0
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; CHECK: call void @llvm.memcpy{{[^%]+}}[[copyBytePtr]]{{[^%]+}} align 4 [[aBytePtr]],{{[^,]+}}
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; CHECK: call i32 @bar(%struct.A* [[copyPtr]])
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; CHECK: ret void
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%call = call i32 @bar(%struct.A* %0)
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ret void
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}
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