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llvm-project/llvm/test/Instrumentation/ThreadSanitizer/unaligned.ll

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tsan: properly instrument unaligned accesses If a memory access is unaligned, emit __tsan_unaligned_read/write callbacks instead of __tsan_read/write. Required to change semantics of __tsan_unaligned_read/write to not do the user memory. But since they were unused (other than through __sanitizer_unaligned_load/store) this is fine. Fixes long standing issue 17: https://code.google.com/p/thread-sanitizer/issues/detail?id=17 llvm-svn: 227231
2015-01-28 04:19:17 +08:00
; RUN: opt < %s -tsan -S | FileCheck %s
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-S128"
define i16 @test_unaligned_read2(i16* %a) sanitize_thread {
entry:
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction Essentially the same as the GEP change in r230786. A similar migration script can be used to update test cases, though a few more test case improvements/changes were required this time around: (r229269-r229278) import fileinput import sys import re pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)") for line in sys.stdin: sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line)) Reviewers: rafael, dexonsmith, grosser Differential Revision: http://reviews.llvm.org/D7649 llvm-svn: 230794
2015-02-28 05:17:42 +08:00
%tmp1 = load i16, i16* %a, align 1
tsan: properly instrument unaligned accesses If a memory access is unaligned, emit __tsan_unaligned_read/write callbacks instead of __tsan_read/write. Required to change semantics of __tsan_unaligned_read/write to not do the user memory. But since they were unused (other than through __sanitizer_unaligned_load/store) this is fine. Fixes long standing issue 17: https://code.google.com/p/thread-sanitizer/issues/detail?id=17 llvm-svn: 227231
2015-01-28 04:19:17 +08:00
ret i16 %tmp1
}
; CHECK-LABEL: define i16 @test_unaligned_read2(i16* %a)
; CHECK: call void @__tsan_func_entry(i8* %0)
; CHECK-NEXT: %1 = bitcast i16* %a to i8*
; CHECK-NEXT: call void @__tsan_unaligned_read2(i8* %1)
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction Essentially the same as the GEP change in r230786. A similar migration script can be used to update test cases, though a few more test case improvements/changes were required this time around: (r229269-r229278) import fileinput import sys import re pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)") for line in sys.stdin: sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line)) Reviewers: rafael, dexonsmith, grosser Differential Revision: http://reviews.llvm.org/D7649 llvm-svn: 230794
2015-02-28 05:17:42 +08:00
; CHECK-NEXT: %tmp1 = load i16, i16* %a, align 1
tsan: properly instrument unaligned accesses If a memory access is unaligned, emit __tsan_unaligned_read/write callbacks instead of __tsan_read/write. Required to change semantics of __tsan_unaligned_read/write to not do the user memory. But since they were unused (other than through __sanitizer_unaligned_load/store) this is fine. Fixes long standing issue 17: https://code.google.com/p/thread-sanitizer/issues/detail?id=17 llvm-svn: 227231
2015-01-28 04:19:17 +08:00
; CHECK-NEXT: call void @__tsan_func_exit()
; CHECK: ret i16
define i32 @test_unaligned_read4(i32* %a) sanitize_thread {
entry:
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction Essentially the same as the GEP change in r230786. A similar migration script can be used to update test cases, though a few more test case improvements/changes were required this time around: (r229269-r229278) import fileinput import sys import re pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)") for line in sys.stdin: sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line)) Reviewers: rafael, dexonsmith, grosser Differential Revision: http://reviews.llvm.org/D7649 llvm-svn: 230794
2015-02-28 05:17:42 +08:00
%tmp1 = load i32, i32* %a, align 2
tsan: properly instrument unaligned accesses If a memory access is unaligned, emit __tsan_unaligned_read/write callbacks instead of __tsan_read/write. Required to change semantics of __tsan_unaligned_read/write to not do the user memory. But since they were unused (other than through __sanitizer_unaligned_load/store) this is fine. Fixes long standing issue 17: https://code.google.com/p/thread-sanitizer/issues/detail?id=17 llvm-svn: 227231
2015-01-28 04:19:17 +08:00
ret i32 %tmp1
}
; CHECK-LABEL: define i32 @test_unaligned_read4(i32* %a)
; CHECK: call void @__tsan_func_entry(i8* %0)
; CHECK-NEXT: %1 = bitcast i32* %a to i8*
; CHECK-NEXT: call void @__tsan_unaligned_read4(i8* %1)
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction Essentially the same as the GEP change in r230786. A similar migration script can be used to update test cases, though a few more test case improvements/changes were required this time around: (r229269-r229278) import fileinput import sys import re pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)") for line in sys.stdin: sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line)) Reviewers: rafael, dexonsmith, grosser Differential Revision: http://reviews.llvm.org/D7649 llvm-svn: 230794
2015-02-28 05:17:42 +08:00
; CHECK-NEXT: %tmp1 = load i32, i32* %a, align 2
tsan: properly instrument unaligned accesses If a memory access is unaligned, emit __tsan_unaligned_read/write callbacks instead of __tsan_read/write. Required to change semantics of __tsan_unaligned_read/write to not do the user memory. But since they were unused (other than through __sanitizer_unaligned_load/store) this is fine. Fixes long standing issue 17: https://code.google.com/p/thread-sanitizer/issues/detail?id=17 llvm-svn: 227231
2015-01-28 04:19:17 +08:00
; CHECK-NEXT: call void @__tsan_func_exit()
; CHECK: ret i32
define i64 @test_unaligned_read8(i64* %a) sanitize_thread {
entry:
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction Essentially the same as the GEP change in r230786. A similar migration script can be used to update test cases, though a few more test case improvements/changes were required this time around: (r229269-r229278) import fileinput import sys import re pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)") for line in sys.stdin: sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line)) Reviewers: rafael, dexonsmith, grosser Differential Revision: http://reviews.llvm.org/D7649 llvm-svn: 230794
2015-02-28 05:17:42 +08:00
%tmp1 = load i64, i64* %a, align 4
tsan: properly instrument unaligned accesses If a memory access is unaligned, emit __tsan_unaligned_read/write callbacks instead of __tsan_read/write. Required to change semantics of __tsan_unaligned_read/write to not do the user memory. But since they were unused (other than through __sanitizer_unaligned_load/store) this is fine. Fixes long standing issue 17: https://code.google.com/p/thread-sanitizer/issues/detail?id=17 llvm-svn: 227231
2015-01-28 04:19:17 +08:00
ret i64 %tmp1
}
; CHECK-LABEL: define i64 @test_unaligned_read8(i64* %a)
; CHECK: call void @__tsan_func_entry(i8* %0)
; CHECK-NEXT: %1 = bitcast i64* %a to i8*
; CHECK-NEXT: call void @__tsan_unaligned_read8(i8* %1)
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction Essentially the same as the GEP change in r230786. A similar migration script can be used to update test cases, though a few more test case improvements/changes were required this time around: (r229269-r229278) import fileinput import sys import re pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)") for line in sys.stdin: sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line)) Reviewers: rafael, dexonsmith, grosser Differential Revision: http://reviews.llvm.org/D7649 llvm-svn: 230794
2015-02-28 05:17:42 +08:00
; CHECK-NEXT: %tmp1 = load i64, i64* %a, align 4
tsan: properly instrument unaligned accesses If a memory access is unaligned, emit __tsan_unaligned_read/write callbacks instead of __tsan_read/write. Required to change semantics of __tsan_unaligned_read/write to not do the user memory. But since they were unused (other than through __sanitizer_unaligned_load/store) this is fine. Fixes long standing issue 17: https://code.google.com/p/thread-sanitizer/issues/detail?id=17 llvm-svn: 227231
2015-01-28 04:19:17 +08:00
; CHECK-NEXT: call void @__tsan_func_exit()
; CHECK: ret i64
define i128 @test_unaligned_read16(i128* %a) sanitize_thread {
entry:
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction Essentially the same as the GEP change in r230786. A similar migration script can be used to update test cases, though a few more test case improvements/changes were required this time around: (r229269-r229278) import fileinput import sys import re pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)") for line in sys.stdin: sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line)) Reviewers: rafael, dexonsmith, grosser Differential Revision: http://reviews.llvm.org/D7649 llvm-svn: 230794
2015-02-28 05:17:42 +08:00
%tmp1 = load i128, i128* %a, align 1
tsan: properly instrument unaligned accesses If a memory access is unaligned, emit __tsan_unaligned_read/write callbacks instead of __tsan_read/write. Required to change semantics of __tsan_unaligned_read/write to not do the user memory. But since they were unused (other than through __sanitizer_unaligned_load/store) this is fine. Fixes long standing issue 17: https://code.google.com/p/thread-sanitizer/issues/detail?id=17 llvm-svn: 227231
2015-01-28 04:19:17 +08:00
ret i128 %tmp1
}
; CHECK-LABEL: define i128 @test_unaligned_read16(i128* %a)
; CHECK: call void @__tsan_func_entry(i8* %0)
; CHECK-NEXT: %1 = bitcast i128* %a to i8*
; CHECK-NEXT: call void @__tsan_unaligned_read16(i8* %1)
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction Essentially the same as the GEP change in r230786. A similar migration script can be used to update test cases, though a few more test case improvements/changes were required this time around: (r229269-r229278) import fileinput import sys import re pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)") for line in sys.stdin: sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line)) Reviewers: rafael, dexonsmith, grosser Differential Revision: http://reviews.llvm.org/D7649 llvm-svn: 230794
2015-02-28 05:17:42 +08:00
; CHECK-NEXT: %tmp1 = load i128, i128* %a, align 1
tsan: properly instrument unaligned accesses If a memory access is unaligned, emit __tsan_unaligned_read/write callbacks instead of __tsan_read/write. Required to change semantics of __tsan_unaligned_read/write to not do the user memory. But since they were unused (other than through __sanitizer_unaligned_load/store) this is fine. Fixes long standing issue 17: https://code.google.com/p/thread-sanitizer/issues/detail?id=17 llvm-svn: 227231
2015-01-28 04:19:17 +08:00
; CHECK-NEXT: call void @__tsan_func_exit()
; CHECK: ret i128
define i128 @test_aligned_read16(i128* %a) sanitize_thread {
entry:
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction Essentially the same as the GEP change in r230786. A similar migration script can be used to update test cases, though a few more test case improvements/changes were required this time around: (r229269-r229278) import fileinput import sys import re pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)") for line in sys.stdin: sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line)) Reviewers: rafael, dexonsmith, grosser Differential Revision: http://reviews.llvm.org/D7649 llvm-svn: 230794
2015-02-28 05:17:42 +08:00
%tmp1 = load i128, i128* %a, align 8
tsan: properly instrument unaligned accesses If a memory access is unaligned, emit __tsan_unaligned_read/write callbacks instead of __tsan_read/write. Required to change semantics of __tsan_unaligned_read/write to not do the user memory. But since they were unused (other than through __sanitizer_unaligned_load/store) this is fine. Fixes long standing issue 17: https://code.google.com/p/thread-sanitizer/issues/detail?id=17 llvm-svn: 227231
2015-01-28 04:19:17 +08:00
ret i128 %tmp1
}
; CHECK-LABEL: define i128 @test_aligned_read16(i128* %a)
; CHECK: call void @__tsan_func_entry(i8* %0)
; CHECK-NEXT: %1 = bitcast i128* %a to i8*
; CHECK-NEXT: call void @__tsan_read16(i8* %1)
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction Essentially the same as the GEP change in r230786. A similar migration script can be used to update test cases, though a few more test case improvements/changes were required this time around: (r229269-r229278) import fileinput import sys import re pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)") for line in sys.stdin: sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line)) Reviewers: rafael, dexonsmith, grosser Differential Revision: http://reviews.llvm.org/D7649 llvm-svn: 230794
2015-02-28 05:17:42 +08:00
; CHECK-NEXT: %tmp1 = load i128, i128* %a, align 8
tsan: properly instrument unaligned accesses If a memory access is unaligned, emit __tsan_unaligned_read/write callbacks instead of __tsan_read/write. Required to change semantics of __tsan_unaligned_read/write to not do the user memory. But since they were unused (other than through __sanitizer_unaligned_load/store) this is fine. Fixes long standing issue 17: https://code.google.com/p/thread-sanitizer/issues/detail?id=17 llvm-svn: 227231
2015-01-28 04:19:17 +08:00
; CHECK-NEXT: call void @__tsan_func_exit()
; CHECK: ret i128
define void @test_unaligned_write2(i16* %a) sanitize_thread {
entry:
store i16 1, i16* %a, align 1
ret void
}
; CHECK-LABEL: define void @test_unaligned_write2(i16* %a)
; CHECK: call void @__tsan_func_entry(i8* %0)
; CHECK-NEXT: %1 = bitcast i16* %a to i8*
; CHECK-NEXT: call void @__tsan_unaligned_write2(i8* %1)
; CHECK-NEXT: store i16 1, i16* %a, align 1
; CHECK-NEXT: call void @__tsan_func_exit()
; CHECK: ret void
define void @test_unaligned_write4(i32* %a) sanitize_thread {
entry:
store i32 1, i32* %a, align 1
ret void
}
; CHECK-LABEL: define void @test_unaligned_write4(i32* %a)
; CHECK: call void @__tsan_func_entry(i8* %0)
; CHECK-NEXT: %1 = bitcast i32* %a to i8*
; CHECK-NEXT: call void @__tsan_unaligned_write4(i8* %1)
; CHECK-NEXT: store i32 1, i32* %a, align 1
; CHECK-NEXT: call void @__tsan_func_exit()
; CHECK: ret void
define void @test_unaligned_write8(i64* %a) sanitize_thread {
entry:
store i64 1, i64* %a, align 1
ret void
}
; CHECK-LABEL: define void @test_unaligned_write8(i64* %a)
; CHECK: call void @__tsan_func_entry(i8* %0)
; CHECK-NEXT: %1 = bitcast i64* %a to i8*
; CHECK-NEXT: call void @__tsan_unaligned_write8(i8* %1)
; CHECK-NEXT: store i64 1, i64* %a, align 1
; CHECK-NEXT: call void @__tsan_func_exit()
; CHECK: ret void
define void @test_unaligned_write16(i128* %a) sanitize_thread {
entry:
store i128 1, i128* %a, align 1
ret void
}
; CHECK-LABEL: define void @test_unaligned_write16(i128* %a)
; CHECK: call void @__tsan_func_entry(i8* %0)
; CHECK-NEXT: %1 = bitcast i128* %a to i8*
; CHECK-NEXT: call void @__tsan_unaligned_write16(i8* %1)
; CHECK-NEXT: store i128 1, i128* %a, align 1
; CHECK-NEXT: call void @__tsan_func_exit()
; CHECK: ret void
define void @test_aligned_write16(i128* %a) sanitize_thread {
entry:
store i128 1, i128* %a, align 8
ret void
}
; CHECK-LABEL: define void @test_aligned_write16(i128* %a)
; CHECK: call void @__tsan_func_entry(i8* %0)
; CHECK-NEXT: %1 = bitcast i128* %a to i8*
; CHECK-NEXT: call void @__tsan_write16(i8* %1)
; CHECK-NEXT: store i128 1, i128* %a, align 8
; CHECK-NEXT: call void @__tsan_func_exit()
; CHECK: ret void