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llvm-mirror/test/Instrumentation/AddressSanitizer/do-not-touch-comdat-global.ll
Arthur Eubanks 92a77f4b5e [NewPM][ASan] Make ASan tests work under NPM
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
2020-07-17 18:01:25 -07:00

16 lines
790 B
LLVM

; This test checks that we instrument regular globals, but do not touch
; the COMDAT ones.
; RUN: opt < %s -asan -asan-module -enable-new-pm=0 -S | FileCheck %s
; RUN: opt < %s -passes='asan-pipeline' -S | FileCheck %s
target datalayout = "e-m:w-p:32:32-i64:64-f80:32-n8:16:32-S32"
target triple = "i686-pc-windows-msvc"
; no action should be taken for these globals
$global_noinst = comdat largest
@aliasee = private unnamed_addr constant [2 x i8] [i8 1, i8 2], comdat($global_noinst)
@global_noinst = unnamed_addr alias [2 x i8], [2 x i8]* @aliasee
; CHECK-NOT: {{asan_gen.*global_noinst}}
; CHECK-DAG: @global_noinst = unnamed_addr alias [2 x i8], [2 x i8]* @aliasee
@global_inst = private constant [2 x i8] [i8 1, i8 2]
; CHECK-DAG: {{asan_gen.*global_inst}}
; CHECK: @asan.module_ctor