2012-07-02 18:37:59 +00:00
|
|
|
; RUN: opt -basicaa -lint -disable-output < %s 2>&1 | FileCheck %s
|
2010-04-08 18:47:09 +00:00
|
|
|
target datalayout = "e-p:64:64:64"
|
|
|
|
|
|
|
|
declare fastcc void @bar()
|
2010-05-26 22:21:25 +00:00
|
|
|
declare void @llvm.stackrestore(i8*)
|
2010-05-28 17:44:00 +00:00
|
|
|
declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) nounwind
|
2010-05-28 21:43:57 +00:00
|
|
|
declare void @has_sret(i8* sret %p)
|
|
|
|
declare void @has_noaliases(i32* noalias %p, i32* %q)
|
|
|
|
declare void @one_arg(i32)
|
2010-04-08 18:47:09 +00:00
|
|
|
|
2010-04-30 19:05:00 +00:00
|
|
|
@CG = constant i32 7
|
2012-09-30 07:30:10 +00:00
|
|
|
@E = external global i8
|
2010-04-30 19:05:00 +00:00
|
|
|
|
2010-04-08 18:47:09 +00:00
|
|
|
define i32 @foo() noreturn {
|
2012-09-25 10:00:49 +00:00
|
|
|
%buf = alloca i8
|
|
|
|
%buf2 = alloca {i8, i8}, align 2
|
2010-04-08 18:47:09 +00:00
|
|
|
; CHECK: Caller and callee calling convention differ
|
|
|
|
call void @bar()
|
|
|
|
; CHECK: Null pointer dereference
|
|
|
|
store i32 0, i32* null
|
|
|
|
; CHECK: Null pointer dereference
|
2015-02-27 21:17:42 +00:00
|
|
|
%t = load i32, i32* null
|
2010-04-08 23:05:57 +00:00
|
|
|
; CHECK: Undef pointer dereference
|
|
|
|
store i32 0, i32* undef
|
|
|
|
; CHECK: Undef pointer dereference
|
2015-02-27 21:17:42 +00:00
|
|
|
%u = load i32, i32* undef
|
2010-05-28 21:43:57 +00:00
|
|
|
; CHECK: All-ones pointer dereference
|
|
|
|
store i32 0, i32* inttoptr (i64 -1 to i32*)
|
|
|
|
; CHECK: Address one pointer dereference
|
|
|
|
store i32 0, i32* inttoptr (i64 1 to i32*)
|
2010-04-08 18:47:09 +00:00
|
|
|
; CHECK: Memory reference address is misaligned
|
2012-09-25 10:00:49 +00:00
|
|
|
store i8 0, i8* %buf, align 2
|
|
|
|
; CHECK: Memory reference address is misaligned
|
[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction
One of several parallel first steps to remove the target type of pointers,
replacing them with a single opaque pointer type.
This adds an explicit type parameter to the gep instruction so that when the
first parameter becomes an opaque pointer type, the type to gep through is
still available to the instructions.
* This doesn't modify gep operators, only instructions (operators will be
handled separately)
* Textual IR changes only. Bitcode (including upgrade) and changing the
in-memory representation will be in separate changes.
* geps of vectors are transformed as:
getelementptr <4 x float*> %x, ...
->getelementptr float, <4 x float*> %x, ...
Then, once the opaque pointer type is introduced, this will ultimately look
like:
getelementptr float, <4 x ptr> %x
with the unambiguous interpretation that it is a vector of pointers to float.
* address spaces remain on the pointer, not the type:
getelementptr float addrspace(1)* %x
->getelementptr float, float addrspace(1)* %x
Then, eventually:
getelementptr float, ptr addrspace(1) %x
Importantly, the massive amount of test case churn has been automated by
same crappy python code. I had to manually update a few test cases that
wouldn't fit the script's model (r228970,r229196,r229197,r229198). The
python script just massages stdin and writes the result to stdout, I
then wrapped that in a shell script to handle replacing files, then
using the usual find+xargs to migrate all the files.
update.py:
import fileinput
import sys
import re
ibrep = re.compile(r"(^.*?[^%\w]getelementptr inbounds )(((?:<\d* x )?)(.*?)(| addrspace\(\d\)) *\*(|>)(?:$| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$))")
normrep = re.compile( r"(^.*?[^%\w]getelementptr )(((?:<\d* x )?)(.*?)(| addrspace\(\d\)) *\*(|>)(?:$| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$))")
def conv(match, line):
if not match:
return line
line = match.groups()[0]
if len(match.groups()[5]) == 0:
line += match.groups()[2]
line += match.groups()[3]
line += ", "
line += match.groups()[1]
line += "\n"
return line
for line in sys.stdin:
if line.find("getelementptr ") == line.find("getelementptr inbounds"):
if line.find("getelementptr inbounds") != line.find("getelementptr inbounds ("):
line = conv(re.match(ibrep, line), line)
elif line.find("getelementptr ") != line.find("getelementptr ("):
line = conv(re.match(normrep, line), line)
sys.stdout.write(line)
apply.sh:
for name in "$@"
do
python3 `dirname "$0"`/update.py < "$name" > "$name.tmp" && mv "$name.tmp" "$name"
rm -f "$name.tmp"
done
The actual commands:
From llvm/src:
find test/ -name *.ll | xargs ./apply.sh
From llvm/src/tools/clang:
find test/ -name *.mm -o -name *.m -o -name *.cpp -o -name *.c | xargs -I '{}' ../../apply.sh "{}"
From llvm/src/tools/polly:
find test/ -name *.ll | xargs ./apply.sh
After that, check-all (with llvm, clang, clang-tools-extra, lld,
compiler-rt, and polly all checked out).
The extra 'rm' in the apply.sh script is due to a few files in clang's test
suite using interesting unicode stuff that my python script was throwing
exceptions on. None of those files needed to be migrated, so it seemed
sufficient to ignore those cases.
Reviewers: rafael, dexonsmith, grosser
Differential Revision: http://reviews.llvm.org/D7636
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230786 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 19:29:02 +00:00
|
|
|
%gep = getelementptr {i8, i8}, {i8, i8}* %buf2, i32 0, i32 1
|
2012-09-25 10:00:49 +00:00
|
|
|
store i8 0, i8* %gep, align 2
|
2010-04-08 18:47:09 +00:00
|
|
|
; CHECK: Division by zero
|
|
|
|
%sd = sdiv i32 2, 0
|
|
|
|
; CHECK: Division by zero
|
|
|
|
%ud = udiv i32 2, 0
|
|
|
|
; CHECK: Division by zero
|
|
|
|
%sr = srem i32 2, 0
|
|
|
|
; CHECK: Division by zero
|
|
|
|
%ur = urem i32 2, 0
|
2010-04-08 23:05:57 +00:00
|
|
|
; CHECK: extractelement index out of range
|
|
|
|
%ee = extractelement <4 x i32> zeroinitializer, i32 4
|
|
|
|
; CHECK: insertelement index out of range
|
|
|
|
%ie = insertelement <4 x i32> zeroinitializer, i32 0, i32 4
|
|
|
|
; CHECK: Shift count out of range
|
|
|
|
%r = lshr i32 0, 32
|
|
|
|
; CHECK: Shift count out of range
|
|
|
|
%q = ashr i32 0, 32
|
|
|
|
; CHECK: Shift count out of range
|
|
|
|
%l = shl i32 0, 32
|
2010-04-09 01:39:53 +00:00
|
|
|
; CHECK: xor(undef, undef)
|
|
|
|
%xx = xor i32 undef, undef
|
|
|
|
; CHECK: sub(undef, undef)
|
|
|
|
%xs = sub i32 undef, undef
|
2010-04-30 19:05:00 +00:00
|
|
|
|
|
|
|
; CHECK: Write to read-only memory
|
|
|
|
store i32 8, i32* @CG
|
|
|
|
; CHECK: Write to text section
|
|
|
|
store i32 8, i32* bitcast (i32()* @foo to i32*)
|
|
|
|
; CHECK: Load from block address
|
2015-02-27 21:17:42 +00:00
|
|
|
%lb = load i32, i32* bitcast (i8* blockaddress(@foo, %next) to i32*)
|
2010-04-30 19:05:00 +00:00
|
|
|
; CHECK: Call to block address
|
|
|
|
call void()* bitcast (i8* blockaddress(@foo, %next) to void()*)()
|
2010-05-26 22:21:25 +00:00
|
|
|
; CHECK: Undefined behavior: Null pointer dereference
|
|
|
|
call void @llvm.stackrestore(i8* null)
|
2010-05-28 21:43:57 +00:00
|
|
|
; CHECK: Undefined behavior: Null pointer dereference
|
|
|
|
call void @has_sret(i8* null)
|
|
|
|
; CHECK: Unusual: noalias argument aliases another argument
|
|
|
|
call void @has_noaliases(i32* @CG, i32* @CG)
|
|
|
|
; CHECK: Call argument count mismatches callee argument count
|
|
|
|
call void (i32, i32)* bitcast (void (i32)* @one_arg to void (i32, i32)*)(i32 0, i32 0)
|
|
|
|
; CHECK: Call argument count mismatches callee argument count
|
|
|
|
call void ()* bitcast (void (i32)* @one_arg to void ()*)()
|
|
|
|
; CHECK: Call argument type mismatches callee parameter type
|
|
|
|
call void (float)* bitcast (void (i32)* @one_arg to void (float)*)(float 0.0)
|
2010-04-30 19:05:00 +00:00
|
|
|
|
2010-05-28 17:44:00 +00:00
|
|
|
; CHECK: Write to read-only memory
|
|
|
|
call void @llvm.memcpy.p0i8.p0i8.i64(i8* bitcast (i32* @CG to i8*), i8* bitcast (i32* @CG to i8*), i64 1, i32 1, i1 0)
|
|
|
|
|
2012-09-26 07:45:36 +00:00
|
|
|
; CHECK: Undefined behavior: Buffer overflow
|
|
|
|
%wider = bitcast i8* %buf to i16*
|
|
|
|
store i16 0, i16* %wider
|
|
|
|
; CHECK: Undefined behavior: Buffer overflow
|
[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction
One of several parallel first steps to remove the target type of pointers,
replacing them with a single opaque pointer type.
This adds an explicit type parameter to the gep instruction so that when the
first parameter becomes an opaque pointer type, the type to gep through is
still available to the instructions.
* This doesn't modify gep operators, only instructions (operators will be
handled separately)
* Textual IR changes only. Bitcode (including upgrade) and changing the
in-memory representation will be in separate changes.
* geps of vectors are transformed as:
getelementptr <4 x float*> %x, ...
->getelementptr float, <4 x float*> %x, ...
Then, once the opaque pointer type is introduced, this will ultimately look
like:
getelementptr float, <4 x ptr> %x
with the unambiguous interpretation that it is a vector of pointers to float.
* address spaces remain on the pointer, not the type:
getelementptr float addrspace(1)* %x
->getelementptr float, float addrspace(1)* %x
Then, eventually:
getelementptr float, ptr addrspace(1) %x
Importantly, the massive amount of test case churn has been automated by
same crappy python code. I had to manually update a few test cases that
wouldn't fit the script's model (r228970,r229196,r229197,r229198). The
python script just massages stdin and writes the result to stdout, I
then wrapped that in a shell script to handle replacing files, then
using the usual find+xargs to migrate all the files.
update.py:
import fileinput
import sys
import re
ibrep = re.compile(r"(^.*?[^%\w]getelementptr inbounds )(((?:<\d* x )?)(.*?)(| addrspace\(\d\)) *\*(|>)(?:$| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$))")
normrep = re.compile( r"(^.*?[^%\w]getelementptr )(((?:<\d* x )?)(.*?)(| addrspace\(\d\)) *\*(|>)(?:$| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$))")
def conv(match, line):
if not match:
return line
line = match.groups()[0]
if len(match.groups()[5]) == 0:
line += match.groups()[2]
line += match.groups()[3]
line += ", "
line += match.groups()[1]
line += "\n"
return line
for line in sys.stdin:
if line.find("getelementptr ") == line.find("getelementptr inbounds"):
if line.find("getelementptr inbounds") != line.find("getelementptr inbounds ("):
line = conv(re.match(ibrep, line), line)
elif line.find("getelementptr ") != line.find("getelementptr ("):
line = conv(re.match(normrep, line), line)
sys.stdout.write(line)
apply.sh:
for name in "$@"
do
python3 `dirname "$0"`/update.py < "$name" > "$name.tmp" && mv "$name.tmp" "$name"
rm -f "$name.tmp"
done
The actual commands:
From llvm/src:
find test/ -name *.ll | xargs ./apply.sh
From llvm/src/tools/clang:
find test/ -name *.mm -o -name *.m -o -name *.cpp -o -name *.c | xargs -I '{}' ../../apply.sh "{}"
From llvm/src/tools/polly:
find test/ -name *.ll | xargs ./apply.sh
After that, check-all (with llvm, clang, clang-tools-extra, lld,
compiler-rt, and polly all checked out).
The extra 'rm' in the apply.sh script is due to a few files in clang's test
suite using interesting unicode stuff that my python script was throwing
exceptions on. None of those files needed to be migrated, so it seemed
sufficient to ignore those cases.
Reviewers: rafael, dexonsmith, grosser
Differential Revision: http://reviews.llvm.org/D7636
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230786 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 19:29:02 +00:00
|
|
|
%inner = getelementptr {i8, i8}, {i8, i8}* %buf2, i32 0, i32 1
|
2012-09-26 07:45:36 +00:00
|
|
|
%wider2 = bitcast i8* %inner to i16*
|
|
|
|
store i16 0, i16* %wider2
|
|
|
|
; CHECK: Undefined behavior: Buffer overflow
|
[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction
One of several parallel first steps to remove the target type of pointers,
replacing them with a single opaque pointer type.
This adds an explicit type parameter to the gep instruction so that when the
first parameter becomes an opaque pointer type, the type to gep through is
still available to the instructions.
* This doesn't modify gep operators, only instructions (operators will be
handled separately)
* Textual IR changes only. Bitcode (including upgrade) and changing the
in-memory representation will be in separate changes.
* geps of vectors are transformed as:
getelementptr <4 x float*> %x, ...
->getelementptr float, <4 x float*> %x, ...
Then, once the opaque pointer type is introduced, this will ultimately look
like:
getelementptr float, <4 x ptr> %x
with the unambiguous interpretation that it is a vector of pointers to float.
* address spaces remain on the pointer, not the type:
getelementptr float addrspace(1)* %x
->getelementptr float, float addrspace(1)* %x
Then, eventually:
getelementptr float, ptr addrspace(1) %x
Importantly, the massive amount of test case churn has been automated by
same crappy python code. I had to manually update a few test cases that
wouldn't fit the script's model (r228970,r229196,r229197,r229198). The
python script just massages stdin and writes the result to stdout, I
then wrapped that in a shell script to handle replacing files, then
using the usual find+xargs to migrate all the files.
update.py:
import fileinput
import sys
import re
ibrep = re.compile(r"(^.*?[^%\w]getelementptr inbounds )(((?:<\d* x )?)(.*?)(| addrspace\(\d\)) *\*(|>)(?:$| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$))")
normrep = re.compile( r"(^.*?[^%\w]getelementptr )(((?:<\d* x )?)(.*?)(| addrspace\(\d\)) *\*(|>)(?:$| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$))")
def conv(match, line):
if not match:
return line
line = match.groups()[0]
if len(match.groups()[5]) == 0:
line += match.groups()[2]
line += match.groups()[3]
line += ", "
line += match.groups()[1]
line += "\n"
return line
for line in sys.stdin:
if line.find("getelementptr ") == line.find("getelementptr inbounds"):
if line.find("getelementptr inbounds") != line.find("getelementptr inbounds ("):
line = conv(re.match(ibrep, line), line)
elif line.find("getelementptr ") != line.find("getelementptr ("):
line = conv(re.match(normrep, line), line)
sys.stdout.write(line)
apply.sh:
for name in "$@"
do
python3 `dirname "$0"`/update.py < "$name" > "$name.tmp" && mv "$name.tmp" "$name"
rm -f "$name.tmp"
done
The actual commands:
From llvm/src:
find test/ -name *.ll | xargs ./apply.sh
From llvm/src/tools/clang:
find test/ -name *.mm -o -name *.m -o -name *.cpp -o -name *.c | xargs -I '{}' ../../apply.sh "{}"
From llvm/src/tools/polly:
find test/ -name *.ll | xargs ./apply.sh
After that, check-all (with llvm, clang, clang-tools-extra, lld,
compiler-rt, and polly all checked out).
The extra 'rm' in the apply.sh script is due to a few files in clang's test
suite using interesting unicode stuff that my python script was throwing
exceptions on. None of those files needed to be migrated, so it seemed
sufficient to ignore those cases.
Reviewers: rafael, dexonsmith, grosser
Differential Revision: http://reviews.llvm.org/D7636
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230786 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 19:29:02 +00:00
|
|
|
%before = getelementptr i8, i8* %buf, i32 -1
|
2012-09-26 07:45:36 +00:00
|
|
|
%wider3 = bitcast i8* %before to i16*
|
|
|
|
store i16 0, i16* %wider3
|
|
|
|
|
2010-04-08 18:47:09 +00:00
|
|
|
br label %next
|
|
|
|
|
|
|
|
next:
|
|
|
|
; CHECK: Static alloca outside of entry block
|
|
|
|
%a = alloca i32
|
|
|
|
; CHECK: Return statement in function with noreturn attribute
|
|
|
|
ret i32 0
|
2010-04-09 01:39:53 +00:00
|
|
|
|
|
|
|
foo:
|
2012-09-30 07:30:10 +00:00
|
|
|
; CHECK-NOT: Undefined behavior: Buffer overflow
|
|
|
|
; CHECK-NOT: Memory reference address is misaligned
|
|
|
|
%e = bitcast i8* @E to i64*
|
|
|
|
store i64 0, i64* %e
|
2010-04-09 01:39:53 +00:00
|
|
|
%z = add i32 0, 0
|
|
|
|
; CHECK: unreachable immediately preceded by instruction without side effects
|
|
|
|
unreachable
|
|
|
|
}
|
|
|
|
|
|
|
|
; CHECK: Unnamed function with non-local linkage
|
|
|
|
define void @0() nounwind {
|
|
|
|
ret void
|
|
|
|
}
|
|
|
|
|
|
|
|
; CHECK: va_start called in a non-varargs function
|
|
|
|
declare void @llvm.va_start(i8*)
|
|
|
|
define void @not_vararg(i8* %p) nounwind {
|
|
|
|
call void @llvm.va_start(i8* %p)
|
|
|
|
ret void
|
2010-04-08 18:47:09 +00:00
|
|
|
}
|
2010-04-30 19:05:00 +00:00
|
|
|
|
2010-05-26 21:46:36 +00:00
|
|
|
; CHECK: Undefined behavior: Branch to non-blockaddress
|
2010-04-30 19:05:00 +00:00
|
|
|
define void @use_indbr() {
|
|
|
|
indirectbr i8* bitcast (i32()* @foo to i8*), [label %block]
|
|
|
|
block:
|
|
|
|
unreachable
|
|
|
|
}
|
2010-05-26 21:46:36 +00:00
|
|
|
|
2010-05-28 16:34:49 +00:00
|
|
|
; CHECK: Undefined behavior: Call with "tail" keyword references alloca
|
2010-05-26 21:46:36 +00:00
|
|
|
declare void @tailcallee(i8*)
|
|
|
|
define void @use_tail(i8* %valist) {
|
|
|
|
%t = alloca i8
|
|
|
|
tail call void @tailcallee(i8* %t)
|
|
|
|
ret void
|
|
|
|
}
|
2010-05-28 04:33:42 +00:00
|
|
|
|
2010-05-28 16:34:49 +00:00
|
|
|
; CHECK: Unusual: Returning alloca value
|
2010-05-28 04:33:42 +00:00
|
|
|
define i8* @return_local(i32 %n, i32 %m) {
|
|
|
|
%t = alloca i8, i32 %n
|
[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction
One of several parallel first steps to remove the target type of pointers,
replacing them with a single opaque pointer type.
This adds an explicit type parameter to the gep instruction so that when the
first parameter becomes an opaque pointer type, the type to gep through is
still available to the instructions.
* This doesn't modify gep operators, only instructions (operators will be
handled separately)
* Textual IR changes only. Bitcode (including upgrade) and changing the
in-memory representation will be in separate changes.
* geps of vectors are transformed as:
getelementptr <4 x float*> %x, ...
->getelementptr float, <4 x float*> %x, ...
Then, once the opaque pointer type is introduced, this will ultimately look
like:
getelementptr float, <4 x ptr> %x
with the unambiguous interpretation that it is a vector of pointers to float.
* address spaces remain on the pointer, not the type:
getelementptr float addrspace(1)* %x
->getelementptr float, float addrspace(1)* %x
Then, eventually:
getelementptr float, ptr addrspace(1) %x
Importantly, the massive amount of test case churn has been automated by
same crappy python code. I had to manually update a few test cases that
wouldn't fit the script's model (r228970,r229196,r229197,r229198). The
python script just massages stdin and writes the result to stdout, I
then wrapped that in a shell script to handle replacing files, then
using the usual find+xargs to migrate all the files.
update.py:
import fileinput
import sys
import re
ibrep = re.compile(r"(^.*?[^%\w]getelementptr inbounds )(((?:<\d* x )?)(.*?)(| addrspace\(\d\)) *\*(|>)(?:$| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$))")
normrep = re.compile( r"(^.*?[^%\w]getelementptr )(((?:<\d* x )?)(.*?)(| addrspace\(\d\)) *\*(|>)(?:$| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$))")
def conv(match, line):
if not match:
return line
line = match.groups()[0]
if len(match.groups()[5]) == 0:
line += match.groups()[2]
line += match.groups()[3]
line += ", "
line += match.groups()[1]
line += "\n"
return line
for line in sys.stdin:
if line.find("getelementptr ") == line.find("getelementptr inbounds"):
if line.find("getelementptr inbounds") != line.find("getelementptr inbounds ("):
line = conv(re.match(ibrep, line), line)
elif line.find("getelementptr ") != line.find("getelementptr ("):
line = conv(re.match(normrep, line), line)
sys.stdout.write(line)
apply.sh:
for name in "$@"
do
python3 `dirname "$0"`/update.py < "$name" > "$name.tmp" && mv "$name.tmp" "$name"
rm -f "$name.tmp"
done
The actual commands:
From llvm/src:
find test/ -name *.ll | xargs ./apply.sh
From llvm/src/tools/clang:
find test/ -name *.mm -o -name *.m -o -name *.cpp -o -name *.c | xargs -I '{}' ../../apply.sh "{}"
From llvm/src/tools/polly:
find test/ -name *.ll | xargs ./apply.sh
After that, check-all (with llvm, clang, clang-tools-extra, lld,
compiler-rt, and polly all checked out).
The extra 'rm' in the apply.sh script is due to a few files in clang's test
suite using interesting unicode stuff that my python script was throwing
exceptions on. None of those files needed to be migrated, so it seemed
sufficient to ignore those cases.
Reviewers: rafael, dexonsmith, grosser
Differential Revision: http://reviews.llvm.org/D7636
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230786 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 19:29:02 +00:00
|
|
|
%s = getelementptr i8, i8* %t, i32 %m
|
2010-05-28 04:33:42 +00:00
|
|
|
ret i8* %s
|
|
|
|
}
|
2010-05-28 16:21:24 +00:00
|
|
|
|
2010-05-28 16:34:49 +00:00
|
|
|
; CHECK: Unusual: Returning alloca value
|
2010-05-28 16:21:24 +00:00
|
|
|
define i32* @return_obscured_local() {
|
|
|
|
entry:
|
|
|
|
%retval = alloca i32*
|
|
|
|
%x = alloca i32
|
|
|
|
store i32* %x, i32** %retval
|
|
|
|
br label %next
|
|
|
|
next:
|
2015-02-27 21:17:42 +00:00
|
|
|
%t0 = load i32*, i32** %retval
|
2010-05-28 16:21:24 +00:00
|
|
|
%t1 = insertvalue { i32, i32, i32* } zeroinitializer, i32* %t0, 2
|
|
|
|
%t2 = extractvalue { i32, i32, i32* } %t1, 2
|
|
|
|
br label %exit
|
|
|
|
exit:
|
|
|
|
%t3 = phi i32* [ %t2, %next ]
|
|
|
|
%t4 = bitcast i32* %t3 to i32*
|
|
|
|
%t5 = ptrtoint i32* %t4 to i64
|
|
|
|
%t6 = add i64 %t5, 0
|
|
|
|
%t7 = inttoptr i64 %t6 to i32*
|
|
|
|
ret i32* %t7
|
|
|
|
}
|
2010-05-28 16:45:33 +00:00
|
|
|
|
|
|
|
; CHECK: Undefined behavior: Undef pointer dereference
|
|
|
|
define i32* @self_reference() {
|
|
|
|
entry:
|
|
|
|
unreachable
|
|
|
|
exit:
|
|
|
|
%t3 = phi i32* [ %t4, %exit ]
|
|
|
|
%t4 = bitcast i32* %t3 to i32*
|
2015-02-27 21:17:42 +00:00
|
|
|
%x = load volatile i32, i32* %t3
|
2010-05-28 16:45:33 +00:00
|
|
|
br label %exit
|
|
|
|
}
|
2010-07-12 18:02:04 +00:00
|
|
|
|
|
|
|
; CHECK: Call return type mismatches callee return type
|
|
|
|
%struct = type { double, double }
|
|
|
|
declare i32 @nonstruct_callee() nounwind
|
|
|
|
define void @struct_caller() nounwind {
|
|
|
|
entry:
|
|
|
|
call %struct bitcast (i32 ()* @foo to %struct ()*)()
|
2010-08-02 23:06:43 +00:00
|
|
|
|
|
|
|
; CHECK: Undefined behavior: indirectbr with no destinations
|
|
|
|
indirectbr i8* null, []
|
2010-07-12 18:02:04 +00:00
|
|
|
}
|