[llvm-bugs] [Bug 41565] New: wasm linker: __start_SECTION / __end_SECTION symbol missing
https://bugs.llvm.org/show_bug.cgi?id=41565 Bug ID: 41565 Summary: wasm linker: __start_SECTION / __end_SECTION symbol missing Product: lld Version: unspecified Hardware: PC OS: Windows NT Status: NEW Severity: enhancement Priority: P Component: All Bugs Assignee: unassignedb...@nondot.org Reporter: c...@remobjects.com CC: llvm-bugs@lists.llvm.org, peter.sm...@linaro.org When having a symbol like: @_typeinfo__rtti_te_Module6_d_Test = private constant i8* bitcast (@_rtti_te_Module6_d_Test to i8*), section "ELRTTLRR", align 4 there is no way to get the start/end of the ELRTTLRR section in wasm currently. -- You are receiving this mail because: You are on the CC list for the bug.___ llvm-bugs mailing list llvm-bugs@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] [Bug 41564] New: Clang is broken when the LLVM suite is built all-in-one via LLVM, but works when built separately
https://bugs.llvm.org/show_bug.cgi?id=41564 Bug ID: 41564 Summary: Clang is broken when the LLVM suite is built all-in-one via LLVM, but works when built separately Product: new-bugs Version: trunk Hardware: PC OS: Linux Status: NEW Severity: normal Priority: P Component: new bugs Assignee: unassignedb...@nondot.org Reporter: kyle.de...@mykolab.com CC: htmldevelo...@gmail.com, llvm-bugs@lists.llvm.org With https://aur.archlinux.org/packages/llvm-git, Clang is built by moving the `clang` directory to `llvm/tools/clang`, as shown by this line: https://aur.archlinux.org/cgit/aur.git/tree/PKGBUILD?h=llvm-git#n67 Clang is then built via `cmake "$srcdir"/llvm-project/llvm`. This results in a broken `clang` binary However, Clang has been noted to work when LLVM and Clang are built separately, with LLVM being built first, CompilerRT second, and lastly, Clang. Therefore, there's a weird bug somewhere where the all-in-one Clang build just breaks. -- You are receiving this mail because: You are on the CC list for the bug.___ llvm-bugs mailing list llvm-bugs@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] [Bug 41204] 8.0 regression: Search to crt*.o fails on mips64el
https://bugs.llvm.org/show_bug.cgi?id=41204 Tom Stellard changed: What|Removed |Added Fixed By Commit(s)|r357506 |r357506 r358947 Status|CONFIRMED |RESOLVED Resolution|--- |FIXED --- Comment #9 from Tom Stellard --- Merged: r358947 -- You are receiving this mail because: You are on the CC list for the bug.___ llvm-bugs mailing list llvm-bugs@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] [Bug 41221] [meta] 8.0.1 Release Blockers
https://bugs.llvm.org/show_bug.cgi?id=41221 Bug 41221 depends on bug 41204, which changed state. Bug 41204 Summary: 8.0 regression: Search to crt*.o fails on mips64el https://bugs.llvm.org/show_bug.cgi?id=41204 What|Removed |Added Status|CONFIRMED |RESOLVED Resolution|--- |FIXED -- You are receiving this mail because: You are on the CC list for the bug.___ llvm-bugs mailing list llvm-bugs@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] [Bug 41435] Merge r356039 into the 8.0 branch : [MIPS][microMIPS] Fix PseudoMTLOHI_MM matching and expansion
https://bugs.llvm.org/show_bug.cgi?id=41435 Tom Stellard changed: What|Removed |Added Status|NEW |RESOLVED Fixed By Commit(s)|r356039 |r356039 r358941 Resolution|--- |FIXED --- Comment #1 from Tom Stellard --- Merged: r358941 -- You are receiving this mail because: You are on the CC list for the bug.___ llvm-bugs mailing list llvm-bugs@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] [Bug 41221] [meta] 8.0.1 Release Blockers
https://bugs.llvm.org/show_bug.cgi?id=41221 Bug 41221 depends on bug 41435, which changed state. Bug 41435 Summary: Merge r356039 into the 8.0 branch : [MIPS][microMIPS] Fix PseudoMTLOHI_MM matching and expansion https://bugs.llvm.org/show_bug.cgi?id=41435 What|Removed |Added Status|NEW |RESOLVED Resolution|--- |FIXED -- You are receiving this mail because: You are on the CC list for the bug.___ llvm-bugs mailing list llvm-bugs@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] [Bug 41563] New: operator<<(ostream, string) declared in but defined in
https://bugs.llvm.org/show_bug.cgi?id=41563
Bug ID: 41563
Summary: operator<<(ostream, string) declared in but
defined in
Product: libc++
Version: unspecified
Hardware: PC
OS: All
Status: NEW
Severity: enhancement
Priority: P
Component: All Bugs
Assignee: unassignedclangb...@nondot.org
Reporter: smee...@fb.com
CC: e...@efcs.ca, ldio...@apple.com,
llvm-bugs@lists.llvm.org, mclow.li...@gmail.com
$ cat f.cpp
#include
#include
void f(std::ostream ) { os << std::string("Hello world!\n"); }
$ cat main.cpp
#include
#include
void f(std::ostream &);
int main() { f(std::cout); }
$ clang++ f.cpp main.cpp
Undefined symbols for architecture x86_64:
"std::__1::basic_ostream >&
std::__1::operator<<,
std::__1::allocator >(std::__1::basic_ostream >&, std::__1::basic_string, std::__1::allocator > const&)", referenced
from:
f(std::__1::basic_ostream >&) in
f-e729ff.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
The operator<<(ostream, string) overload is declared in but defined in
, so if you just include , you end up with an undefined
reference to it which results in a link error, as demonstrated above. It links
successfully if I change f.cpp to include instead of .
I don't know if this would necessarily be considered a bug, but I find it
strange that you can end up in a situation where you include a header and have
all the declarations needed to compile, but then have to pull in another header
to actually be able to link.
My above test case was run with Xcode 10.2, but in theory you should have the
same issue with upstream libc++.
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[llvm-bugs] [Bug 41562] New: Loop optimizer aggressively unrolling and vectorizing loops despite small bound on trip count
https://bugs.llvm.org/show_bug.cgi?id=41562
Bug ID: 41562
Summary: Loop optimizer aggressively unrolling and vectorizing
loops despite small bound on trip count
Product: libraries
Version: trunk
Hardware: PC
OS: Windows NT
Status: NEW
Severity: enhancement
Priority: P
Component: Loop Optimizer
Assignee: unassignedb...@nondot.org
Reporter: fabi...@radgametools.com
CC: llvm-bugs@lists.llvm.org
Here's a fairly straightforward adaptation of real-world code we noticed this
in. This is essentially undoing byte-wise delta coding.
-
#include
#include
#include
void f(uint8_t *dest, const uint8_t *src, ptrdiff_t offs, size_t len)
{
// note: len is always < 64 for this func
// offset is allowed to be -8 (but not >=-7) so can't do more than 8 at
once
while (len >= 8)
{
__m128i v0 = _mm_loadl_epi64((const __m128i *) src);
__m128i v1 = _mm_loadl_epi64((const __m128i *) (dest + offs));
__m128i sum = _mm_add_epi8(v0, v1);
_mm_storel_epi64((__m128i *) dest, sum);
src += 8;
dest += 8;
len -= 8;
}
// this loop gets extensively unrolled and vectorized
// which produces tons of code and is entirely pointless since
// len < 7 here.
while (len--)
{
*dest = *src++ + dest[offs];
dest++;
}
}
-
https://godbolt.org/z/yZ4WHw
There are other paths that handle long lengths but they are not relevant here.
Current trunk produces a ton of code for this loop; this has been the case for
several major releases at least.
The final loop (starting in line 23) is strictly dominated by the loop above
it; therefore, !(len >= 8) == len < 8 should be inferrable. Extensive unrolling
or loop vectorization is pointless in this instance.
This is a simple example but we've run into numerous instances of this:
essentially, an optimized (and manually vectorized) loop that has a small tail
portion. Trying to vectorize these tail loops does not improve perf and causes
noticeable code bloat.
It's possible to work around this using manual loop optimizer pragmas but this
is rather noisy in the source code, especially in code bases that also need to
work with other compilers (and thus require #ifdefs around Clang-specific
pragmas).
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[llvm-bugs] [Bug 41221] [meta] 8.0.1 Release Blockers
https://bugs.llvm.org/show_bug.cgi?id=41221 Bug 41221 depends on bug 41434, which changed state. Bug 41434 Summary: Merge r355825 into the 8.0 branch : [MIPS][microMIPS] Add a pattern to match TruncIntFP https://bugs.llvm.org/show_bug.cgi?id=41434 What|Removed |Added Status|NEW |RESOLVED Resolution|--- |FIXED -- You are receiving this mail because: You are on the CC list for the bug.___ llvm-bugs mailing list llvm-bugs@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] [Bug 41434] Merge r355825 into the 8.0 branch : [MIPS][microMIPS] Add a pattern to match TruncIntFP
https://bugs.llvm.org/show_bug.cgi?id=41434 Tom Stellard changed: What|Removed |Added Fixed By Commit(s)|r355825 |r355825 r358936 Status|NEW |RESOLVED Resolution|--- |FIXED --- Comment #1 from Tom Stellard --- Merged: r358936 -- You are receiving this mail because: You are on the CC list for the bug.___ llvm-bugs mailing list llvm-bugs@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] [Bug 41375] Merge r354882 into the 8.0 branch : [mips] Emit `.module softfloat` directive
https://bugs.llvm.org/show_bug.cgi?id=41375 Tom Stellard changed: What|Removed |Added Status|NEW |RESOLVED Fixed By Commit(s)|r354882 |r354882 r358934 Resolution|--- |FIXED --- Comment #2 from Tom Stellard --- Merged: r358934 -- You are receiving this mail because: You are on the CC list for the bug.___ llvm-bugs mailing list llvm-bugs@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] [Bug 41221] [meta] 8.0.1 Release Blockers
https://bugs.llvm.org/show_bug.cgi?id=41221 Bug 41221 depends on bug 41375, which changed state. Bug 41375 Summary: Merge r354882 into the 8.0 branch : [mips] Emit `.module softfloat` directive https://bugs.llvm.org/show_bug.cgi?id=41375 What|Removed |Added Status|NEW |RESOLVED Resolution|--- |FIXED -- You are receiving this mail because: You are on the CC list for the bug.___ llvm-bugs mailing list llvm-bugs@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] [Bug 41374] Merge r354808 into the 8.0 branch : [Mips] Fix missing masking in fast-isel of br (PR40325)
https://bugs.llvm.org/show_bug.cgi?id=41374 Tom Stellard changed: What|Removed |Added Fixed By Commit(s)|r354808 |r354808 r358925 Resolution|--- |FIXED Status|NEW |RESOLVED --- Comment #2 from Tom Stellard --- Merged: r358925 -- You are receiving this mail because: You are on the CC list for the bug.___ llvm-bugs mailing list llvm-bugs@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] [Bug 41221] [meta] 8.0.1 Release Blockers
https://bugs.llvm.org/show_bug.cgi?id=41221 Bug 41221 depends on bug 41374, which changed state. Bug 41374 Summary: Merge r354808 into the 8.0 branch : [Mips] Fix missing masking in fast-isel of br (PR40325) https://bugs.llvm.org/show_bug.cgi?id=41374 What|Removed |Added Status|NEW |RESOLVED Resolution|--- |FIXED -- You are receiving this mail because: You are on the CC list for the bug.___ llvm-bugs mailing list llvm-bugs@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] [Bug 41221] [meta] 8.0.1 Release Blockers
https://bugs.llvm.org/show_bug.cgi?id=41221 Bug 41221 depends on bug 41099, which changed state. Bug 41099 Summary: Segfault from clang when compiling OpenMP doacross loop https://bugs.llvm.org/show_bug.cgi?id=41099 What|Removed |Added Status|NEW |RESOLVED Resolution|--- |FIXED -- You are receiving this mail because: You are on the CC list for the bug.___ llvm-bugs mailing list llvm-bugs@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] [Bug 41099] Segfault from clang when compiling OpenMP doacross loop
https://bugs.llvm.org/show_bug.cgi?id=41099 Tom Stellard changed: What|Removed |Added Fixed By Commit(s)|r356198 |r356198 r358923 Resolution|--- |FIXED Status|NEW |RESOLVED --- Comment #10 from Tom Stellard --- Merged: r358923 -- You are receiving this mail because: You are on the CC list for the bug.___ llvm-bugs mailing list llvm-bugs@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] [Bug 41561] New: decltype(&(C::member)) yields pointer-to-member type
https://bugs.llvm.org/show_bug.cgi?id=41561
Bug ID: 41561
Summary: decltype(&(C::member)) yields pointer-to-member type
Product: clang
Version: trunk
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: P
Component: -New Bugs
Assignee: unassignedclangb...@nondot.org
Reporter: csm...@gmail.com
CC: htmldevelo...@gmail.com, llvm-bugs@lists.llvm.org,
neeil...@live.com, richard-l...@metafoo.co.uk
In some contexts, decltype(&(C::member)) yields a pointer to member type, but
according to [expr.unary.op]/4, no pointer to member should be formed when the
operand of the & operator is enclosed in parentheses.
http://eel.is/c++draft/expr.unary.op#4
The code below demonstrates this behavior. It compiles on all Clang versions I
have tried between 3.2 and HEAD, even though I don't think it should.
```
#include
struct S {
int x;
static_assert(std::is_same::value, ""); // !
void foo() {
static_assert(std::is_same::value, ""); // OK
}
};
static_assert(std::is_same::value, ""); // !
int main() {
}
```
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[llvm-bugs] [Bug 41547] wrong cod with "opt -instcombine -deadarghaX0r"
https://bugs.llvm.org/show_bug.cgi?id=41547 Eli Friedman changed: What|Removed |Added Status|NEW |RESOLVED CC||efrie...@quicinc.com Resolution|--- |INVALID --- Comment #2 from Eli Friedman --- deadarghaX0r is not an optimization pass; it intentionally breaks the semantics of the code. -- You are receiving this mail because: You are on the CC list for the bug.___ llvm-bugs mailing list llvm-bugs@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] [Bug 41373] Merge r354672 into the 8.0 branch : [mips][micromips] fix filling delay slots for PseudoIndirectBranch_MM
https://bugs.llvm.org/show_bug.cgi?id=41373 Tom Stellard changed: What|Removed |Added Resolution|--- |FIXED Fixed By Commit(s)|r354672 |r354672 r358920 Status|NEW |RESOLVED --- Comment #2 from Tom Stellard --- Merged: r358920 -- You are receiving this mail because: You are on the CC list for the bug.___ llvm-bugs mailing list llvm-bugs@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] [Bug 41221] [meta] 8.0.1 Release Blockers
https://bugs.llvm.org/show_bug.cgi?id=41221 Bug 41221 depends on bug 41373, which changed state. Bug 41373 Summary: Merge r354672 into the 8.0 branch : [mips][micromips] fix filling delay slots for PseudoIndirectBranch_MM https://bugs.llvm.org/show_bug.cgi?id=41373 What|Removed |Added Status|NEW |RESOLVED Resolution|--- |FIXED -- You are receiving this mail because: You are on the CC list for the bug.___ llvm-bugs mailing list llvm-bugs@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] [Bug 41221] [meta] 8.0.1 Release Blockers
https://bugs.llvm.org/show_bug.cgi?id=41221 Bug 41221 depends on bug 41235, which changed state. Bug 41235 Summary: Merge r355854 to the release_80 branch https://bugs.llvm.org/show_bug.cgi?id=41235 What|Removed |Added Status|NEW |RESOLVED Resolution|--- |FIXED -- You are receiving this mail because: You are on the CC list for the bug.___ llvm-bugs mailing list llvm-bugs@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] [Bug 41235] Merge r355854 to the release_80 branch
https://bugs.llvm.org/show_bug.cgi?id=41235 Tom Stellard changed: What|Removed |Added Status|NEW |RESOLVED Fixed By Commit(s)|r355854 |r355854 r Resolution|--- |FIXED --- Comment #2 from Tom Stellard --- Merged: r -- You are receiving this mail because: You are on the CC list for the bug.___ llvm-bugs mailing list llvm-bugs@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] [Bug 40503] wasm-ld: warning: unexpected existing value for R_WEBASSEMBLY_FUNCTION_OFFSET_I32
https://bugs.llvm.org/show_bug.cgi?id=40503 Sam Clegg changed: What|Removed |Added Resolution|--- |FIXED Status|NEW |RESOLVED -- You are receiving this mail because: You are on the CC list for the bug.___ llvm-bugs mailing list llvm-bugs@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] [Bug 41560] New: Assertion `!Init->isValueDependent()' with c++17 deduction guides
https://bugs.llvm.org/show_bug.cgi?id=41560
Bug ID: 41560
Summary: Assertion `!Init->isValueDependent()' with c++17
deduction guides
Product: clang
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: normal
Priority: P
Component: Frontend
Assignee: unassignedclangb...@nondot.org
Reporter: mgr...@gmail.com
CC: llvm-bugs@lists.llvm.org, neeil...@live.com,
richard-l...@metafoo.co.uk
compile -cc1 --std=gnu++17
template struct a;
template class fbvector {
static constexpr bool c = b ::e;
fbvector(a);
};
template fbvector(f)->fbvector;
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[llvm-bugs] [Bug 41221] [meta] 8.0.1 Release Blockers
https://bugs.llvm.org/show_bug.cgi?id=41221 Bug 41221 depends on bug 41223, which changed state. Bug 41223 Summary: Merge r356924 into the 8.0 branch : merge-request.sh: Update 8.0 metabug for 8.0.1 https://bugs.llvm.org/show_bug.cgi?id=41223 What|Removed |Added Status|NEW |RESOLVED Resolution|--- |FIXED -- You are receiving this mail because: You are on the CC list for the bug.___ llvm-bugs mailing list llvm-bugs@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] [Bug 41223] Merge r356924 into the 8.0 branch : merge-request.sh: Update 8.0 metabug for 8.0.1
https://bugs.llvm.org/show_bug.cgi?id=41223 Tom Stellard changed: What|Removed |Added Status|NEW |RESOLVED Fixed By Commit(s)|r356924 |r356924 r357234 Resolution|--- |FIXED --- Comment #2 from Tom Stellard --- Merged: r357234 -- You are receiving this mail because: You are on the CC list for the bug.___ llvm-bugs mailing list llvm-bugs@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] [Bug 40482] lld creates bogus dwarf info when linking gcc object files
https://bugs.llvm.org/show_bug.cgi?id=40482 George Rimar changed: What|Removed |Added Resolution|--- |FIXED Status|NEW |RESOLVED --- Comment #31 from George Rimar --- Closing it then. Thanks, everyone for comments and help! -- You are receiving this mail because: You are on the CC list for the bug.___ llvm-bugs mailing list llvm-bugs@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] [Bug 41559] New: Clang does not break function arguments after comma
https://bugs.llvm.org/show_bug.cgi?id=41559 Bug ID: 41559 Summary: Clang does not break function arguments after comma Product: clang Version: 8.0 Hardware: PC OS: Windows NT Status: NEW Severity: normal Priority: P Component: Formatter Assignee: unassignedclangb...@nondot.org Reporter: rcdai...@gmail.com CC: djas...@google.com, kli...@google.com, llvm-bugs@lists.llvm.org Original issue details on Stack Overflow here: https://stackoverflow.com/questions/55763223/how-do-i-make-clang-format-wrap-functions-by-breaking-after-commas I will quote the information below. Suppose I have the following function definition: ```cpp void MyVideoClass::Play(CJNIVideo* pJNIVideo, const char* pFile, float startPos, bool bLooping, int nGLTextureId) // Column Limit Here:> ``` Based on the column limit above, I expect the last argument to be wrapped and then indented once: ```cpp void MyVideoClass::Play(CJNIVideo* pJNIVideo, const char* pFile, float startPos, bool bLooping, int nGLTextureId) ``` However, what I really get is: ```cpp void MyVideoClass::Play( CJNIVideo* pJNIVideo, const char* pFile, float startPos, bool bLooping, int nGLTextureId) ``` Here is my `.clang-format` (I'm using version 8.0.0 of LLVM): ``` --- Language:Cpp AccessModifierOffset: -3 AlignAfterOpenBracket: DontAlign AlignConsecutiveAssignments: false AlignConsecutiveDeclarations: false AlignEscapedNewlines: Left AlignOperands: false AlignTrailingComments: true AllowAllParametersOfDeclarationOnNextLine: false AllowShortBlocksOnASingleLine: false AllowShortCaseLabelsOnASingleLine: false AllowShortFunctionsOnASingleLine: Inline AllowShortIfStatementsOnASingleLine: false AllowShortLoopsOnASingleLine: false AlwaysBreakAfterDefinitionReturnType: None AlwaysBreakAfterReturnType: None AlwaysBreakBeforeMultilineStrings: true AlwaysBreakTemplateDeclarations: Yes BinPackArguments: true BinPackParameters: true BraceWrapping: AfterClass: true AfterControlStatement: true AfterEnum: true AfterFunction: true AfterNamespace: true AfterObjCDeclaration: true AfterStruct: true AfterUnion: true AfterExternBlock: true BeforeCatch: true BeforeElse: true IndentBraces:true SplitEmptyFunction: true SplitEmptyRecord: true SplitEmptyNamespace: false BreakBeforeBinaryOperators: None BreakBeforeBraces: Allman BreakBeforeInheritanceComma: false BreakInheritanceList: BeforeColon BreakBeforeTernaryOperators: true BreakConstructorInitializersBeforeComma: false BreakConstructorInitializers: BeforeComma BreakAfterJavaFieldAnnotations: true BreakStringLiterals: true ColumnLimit: 100 CommentPragmas: '^ IWYU pragma:' CompactNamespaces: true ConstructorInitializerAllOnOneLineOrOnePerLine: false ConstructorInitializerIndentWidth: 3 ContinuationIndentWidth: 3 Cpp11BracedListStyle: true DerivePointerAlignment: false DisableFormat: false ExperimentalAutoDetectBinPacking: false FixNamespaceComments: true ForEachMacros: - foreach - Q_FOREACH - BOOST_FOREACH IncludeBlocks: Preserve IncludeCategories: - Regex: '^"(llvm|llvm-c|clang|clang-c)/' Priority:2 - Regex: '^(<|"(gtest|gmock|isl|json)/)' Priority:3 - Regex: '.*' Priority:1 IncludeIsMainRegex: '(Test)?$' IndentCaseLabels: true IndentPPDirectives: None IndentWidth: 3 IndentWrappedFunctionNames: false JavaScriptQuotes: Leave JavaScriptWrapImports: true KeepEmptyLinesAtTheStartOfBlocks: true MacroBlockBegin: '' MacroBlockEnd: '' MaxEmptyLinesToKeep: 1 NamespaceIndentation: Inner ObjCBinPackProtocolList: Auto ObjCBlockIndentWidth: 3 ObjCSpaceAfterProperty: true ObjCSpaceBeforeProtocolList: false PenaltyBreakAssignment: 2 PenaltyBreakBeforeFirstCallParameter: 2000 PenaltyBreakComment: 300 PenaltyBreakFirstLessLess: 1 PenaltyBreakString: 1000 PenaltyBreakTemplateDeclaration: 10 PenaltyExcessCharacter: 100 PenaltyReturnTypeOnItsOwnLine: 60 PointerAlignment: Left ReflowComments: true SortIncludes:true SortUsingDeclarations: true SpaceAfterCStyleCast: false SpaceAfterTemplateKeyword: false SpaceBeforeAssignmentOperators: true SpaceBeforeCpp11BracedList: false SpaceBeforeCtorInitializerColon: true SpaceBeforeInheritanceColon: true SpaceBeforeParens: ControlStatements SpaceBeforeRangeBasedForLoopColon: true SpaceInEmptyParentheses: false SpacesBeforeTrailingComments: 1 SpacesInAngles: false SpacesInContainerLiterals: false SpacesInCStyleCastParentheses: false SpacesInParentheses: false SpacesInSquareBrackets: false Standard:Cpp11 StatementMacros: - Q_UNUSED - QT_REQUIRE_VERSION TabWidth:3 UseTab: Never ... ``` Response to this question states that this is a bug: You do have the correct settings
[llvm-bugs] [Bug 41556] Bogus warning: all paths through this function will call itself
https://bugs.llvm.org/show_bug.cgi?id=41556
Richard Smith changed:
What|Removed |Added
Status|NEW |RESOLVED
Resolution|--- |INVALID
--- Comment #2 from Richard Smith ---
The warning is correct; the program is wrong. It will print "{n: [" repeatedly
forever.
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[llvm-bugs] Issue 12748 in oss-fuzz: llvm/llvm-isel-fuzzer--aarch64-O2: Out-of-memory in llvm_llvm-isel-fuzzer--aarch64-O2
Updates: Labels: Deadline-Approaching Comment #4 on issue 12748 by sheriff...@chromium.org: llvm/llvm-isel-fuzzer--aarch64-O2: Out-of-memory in llvm_llvm-isel-fuzzer--aarch64-O2 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=12748#c4 This bug is approaching its deadline for being fixed, and will be automatically derestricted within 7 days. If a fix is planned within 2 weeks after the deadline has passed, a grace extension can be granted. - Your friendly Sheriffbot -- You received this message because: 1. You were specifically CC'd on the issue You may adjust your notification preferences at: https://bugs.chromium.org/hosting/settings Reply to this email to add a comment. ___ llvm-bugs mailing list llvm-bugs@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] Issue 12773 in oss-fuzz: llvm/clang-fuzzer: Stack-overflow in clang::TreeTransform::TransformExpr
Updates: Labels: Deadline-Approaching Comment #4 on issue 12773 by sheriff...@chromium.org: llvm/clang-fuzzer: Stack-overflow in clang::TreeTransform::TransformExpr https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=12773#c4 This bug is approaching its deadline for being fixed, and will be automatically derestricted within 7 days. If a fix is planned within 2 weeks after the deadline has passed, a grace extension can be granted. - Your friendly Sheriffbot -- You received this message because: 1. You were specifically CC'd on the issue You may adjust your notification preferences at: https://bugs.chromium.org/hosting/settings Reply to this email to add a comment. ___ llvm-bugs mailing list llvm-bugs@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] Issue 12715 in oss-fuzz: llvm/clang-fuzzer: ASSERT: isa(Val) && "cast() argument of incompatible type!"
Updates: Labels: Deadline-Approaching Comment #4 on issue 12715 by sheriff...@chromium.org: llvm/clang-fuzzer: ASSERT: isa(Val) && "cast() argument of incompatible type!" https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=12715#c4 This bug is approaching its deadline for being fixed, and will be automatically derestricted within 7 days. If a fix is planned within 2 weeks after the deadline has passed, a grace extension can be granted. - Your friendly Sheriffbot -- You received this message because: 1. You were specifically CC'd on the issue You may adjust your notification preferences at: https://bugs.chromium.org/hosting/settings Reply to this email to add a comment. ___ llvm-bugs mailing list llvm-bugs@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] Issue 14404 in oss-fuzz: llvm/llvm-microsoft-demangle-fuzzer: ASSERT: !MangledName.empty()
Comment #2 on issue 14404 by tha...@chromium.org: llvm/llvm-microsoft-demangle-fuzzer: ASSERT: !MangledName.empty() https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14404#c2 http://reviews.llvm.org/rL358891 should fix. -- You received this message because: 1. You were specifically CC'd on the issue You may adjust your notification preferences at: https://bugs.chromium.org/hosting/settings Reply to this email to add a comment. ___ llvm-bugs mailing list llvm-bugs@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] [Bug 38761] Argument dependent lookup fails for a class nested in its base
https://bugs.llvm.org/show_bug.cgi?id=38761 Bruno Ricci changed: What|Removed |Added Status|NEW |RESOLVED Resolution|--- |FIXED CC||riccib...@gmail.com -- You are receiving this mail because: You are on the CC list for the bug.___ llvm-bugs mailing list llvm-bugs@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] [Bug 41156] [AMDGPU][MC] Invalid handling of "-" before expressions
https://bugs.llvm.org/show_bug.cgi?id=41156 Dmitry changed: What|Removed |Added Fixed By Commit(s)||r35, r358596 Resolution|--- |FIXED Status|NEW |RESOLVED -- You are receiving this mail because: You are on the CC list for the bug.___ llvm-bugs mailing list llvm-bugs@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] Issue 14341 in oss-fuzz: llvm/llvm-microsoft-demangle-fuzzer: Stack-buffer-overflow in llvm::ms_demangle::Demangler::demangleStringLiteral
Updates: Labels: ClusterFuzz-Verified Status: Verified Comment #5 on issue 14341 by ClusterFuzz-External: llvm/llvm-microsoft-demangle-fuzzer: Stack-buffer-overflow in llvm::ms_demangle::Demangler::demangleStringLiteral https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14341#c5 ClusterFuzz testcase 5665174389784576 is verified as fixed, so closing issue as verified. If this is incorrect, please file a bug on https://github.com/google/oss-fuzz/issues/new -- You received this message because: 1. You were specifically CC'd on the issue You may adjust your notification preferences at: https://bugs.chromium.org/hosting/settings Reply to this email to add a comment. ___ llvm-bugs mailing list llvm-bugs@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] Issue 14341 in oss-fuzz: llvm/llvm-microsoft-demangle-fuzzer: Stack-buffer-overflow in llvm::ms_demangle::Demangler::demangleStringLiteral
Comment #4 on issue 14341 by ClusterFuzz-External: llvm/llvm-microsoft-demangle-fuzzer: Stack-buffer-overflow in llvm::ms_demangle::Demangler::demangleStringLiteral https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14341#c4 ClusterFuzz has detected this issue as fixed in range 201904210259:201904220257. Detailed report: https://oss-fuzz.com/testcase?key=5665174389784576 Project: llvm Fuzzer: libFuzzer_llvm_llvm-microsoft-demangle-fuzzer Fuzz target binary: llvm-microsoft-demangle-fuzzer Job Type: libfuzzer_asan_llvm Platform Id: linux Crash Type: Stack-buffer-overflow WRITE 1 Crash Address: 0x7f36250cf7e0 Crash State: llvm::ms_demangle::Demangler::demangleStringLiteral llvm::ms_demangle::Demangler::demangleSpecialIntrinsic llvm::ms_demangle::Demangler::parse Sanitizer: address (ASAN) Recommended Security Severity: High Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm=201901070410:201901080410 Fixed: https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm=201904210259:201904220257 Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=5665174389784576 See https://github.com/google/oss-fuzz/blob/master/docs/reproducing.md for instructions to reproduce this bug locally. If you suspect that the result above is incorrect, try re-doing that job on the test case report page. -- You received this message because: 1. You were specifically CC'd on the issue You may adjust your notification preferences at: https://bugs.chromium.org/hosting/settings Reply to this email to add a comment. ___ llvm-bugs mailing list llvm-bugs@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] Issue 14405 in oss-fuzz: llvm/llvm-microsoft-demangle-fuzzer: Null-dereference READ in llvm::ms_demangle::Demangler::demangleTemplateParameterList
Status: New Owner: CC: k...@google.com, masc...@google.com, jdevlieg...@apple.com, igm...@gmail.com, mit...@google.com, bigchees...@gmail.com, eney...@google.com, llvm-b...@lists.llvm.org, j...@chromium.org, v...@apple.com, mitchphi...@outlook.com, xpl...@gmail.com, akils...@apple.com Labels: ClusterFuzz Stability-Memory-AddressSanitizer Reproducible Engine-libfuzzer Proj-llvm Reported-2019-04-22 Type: Bug New issue 14405 by ClusterFuzz-External: llvm/llvm-microsoft-demangle-fuzzer: Null-dereference READ in llvm::ms_demangle::Demangler::demangleTemplateParameterList https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14405 Detailed report: https://oss-fuzz.com/testcase?key=5646803271155712 Project: llvm Fuzzer: libFuzzer_llvm_llvm-microsoft-demangle-fuzzer Fuzz target binary: llvm-microsoft-demangle-fuzzer Job Type: libfuzzer_asan_llvm Platform Id: linux Crash Type: Null-dereference READ Crash Address: 0x0010 Crash State: llvm::ms_demangle::Demangler::demangleTemplateParameterList llvm::ms_demangle::Demangler::demangleTemplateInstantiationName llvm::ms_demangle::Demangler::demangleNameScopeChain Sanitizer: address (ASAN) Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm=201901070410:201901080410 Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=5646803271155712 Issue filed automatically. See https://github.com/google/oss-fuzz/blob/master/docs/reproducing.md for instructions to reproduce this bug locally. When you fix this bug, please * mention the fix revision(s). * state whether the bug was a short-lived regression or an old bug in any stable releases. * add any other useful information. This information can help downstream consumers. If you need to contact the OSS-Fuzz team with a question, concern, or any other feedback, please file an issue at https://github.com/google/oss-fuzz/issues. -- You received this message because: 1. You were specifically CC'd on the issue You may adjust your notification preferences at: https://bugs.chromium.org/hosting/settings Reply to this email to add a comment. ___ llvm-bugs mailing list llvm-bugs@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] [Bug 28039] Local classes must have an associated namespace since C++14
https://bugs.llvm.org/show_bug.cgi?id=28039 Bruno Ricci changed: What|Removed |Added CC||riccib...@gmail.com Status|NEW |RESOLVED Resolution|--- |FIXED --- Comment #1 from Bruno Ricci --- Fixed by r358882. -- You are receiving this mail because: You are on the CC list for the bug.___ llvm-bugs mailing list llvm-bugs@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] [Bug 26182] Associated namespaces of local classes in ADL
https://bugs.llvm.org/show_bug.cgi?id=26182 Bruno Ricci changed: What|Removed |Added Resolution|--- |FIXED Status|NEW |RESOLVED CC||riccib...@gmail.com --- Comment #1 from Bruno Ricci --- Fixed by r358882. -- You are receiving this mail because: You are on the CC list for the bug.___ llvm-bugs mailing list llvm-bugs@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] [Bug 41558] New: wrong code with "opt -simplifycfg -structurizecfg -inline" (generated code hangs)
https://bugs.llvm.org/show_bug.cgi?id=41558
Bug ID: 41558
Summary: wrong code with "opt -simplifycfg -structurizecfg
-inline" (generated code hangs)
Product: libraries
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: Scalar Optimizations
Assignee: unassignedb...@nondot.org
Reporter: csz...@163.com
CC: llvm-bugs@lists.llvm.org
Created attachment 21812
--> https://bugs.llvm.org/attachment.cgi?id=21812=edit
.bc file of the source code
$clang -v
clang version 9.0.0 (trunk 355281)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/jack-zhou/Documents/llvm/llvm_truck/llvm/build4/bin
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/8
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5.5.0
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/6
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/6.5.0
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/7
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/7.3.0
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/8
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/7.3.0
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Candidate multilib: x32;@mx32
Selected multilib: .;@m64
$clang -O3 -c -emit-llvm -mllvm -disable-llvm-optzns small.c -o small.bc
$clang small.bc -o small1.out && ./small1.out
checksum = 9add2096
$opt -simplifycfg -structurizecfg -inline small.bc -o small-opt1.bc
$clang small-opt.bc -o small2.out && timeout -s 9 10 ./small2.out
Killed
$opt -simplifycfg -structurizecfg small.bc -o small-opt2.bc
$ clang small-opt2.bc -o small3.out && ./small3.out
checksum = d8f827eb
---
//
typedef signed char int8_t;
typedef int int32_t;
typedef long intint64_t;
/* Unsigned. */
typedef unsigned char uint8_t;
typedef unsigned short int uint16_t;
typedef unsigned intuint32_t;
typedef unsigned long int uint64_t;
static uint32_t crc32_tab[256];
static uint32_t crc32_context = 0xUL;
static void
crc32_gentab (void)
{
uint32_t crc;
const uint32_t poly = 0xEDB88320UL;
int i, j;
for (i = 0; i < 256; i++) {
crc = i;
for (j = 8; j > 0; j--) {
if (crc & 1) {
crc = (crc >> 1) ^ poly;
} else {
crc >>= 1;
}
}
crc32_tab[i] = crc;
}
}
static void
crc32_byte (uint8_t b) {
crc32_context =
((crc32_context >> 8) & 0x00FF) ^
crc32_tab[(crc32_context ^ b) & 0xFF];
}
static void
crc32_8bytes (uint64_t val)
{
crc32_byte ((val>>0) & 0xff);
crc32_byte ((val>>8) & 0xff);
crc32_byte ((val>>16) & 0xff);
crc32_byte ((val>>24) & 0xff);
crc32_byte ((val>>32) & 0xff);
crc32_byte ((val>>40) & 0xff);
crc32_byte ((val>>48) & 0xff);
crc32_byte ((val>>56) & 0xff);
}
static void
transparent_crc (uint64_t val, char* vname, int flag)
{
crc32_8bytes(val);
if (flag) {
printf("...checksum after hashing %s : %lX\n", vname,
crc32_context ^ 0xUL);
}
}
static inline void
platform_main_end (uint64_t x, int flag)
{
if (!flag) {
printf ("checksum = %llx\n", x);
}
}
//
int a, b, c, d = 2;
uint16_t e(uint8_t);
int32_t *f(int32_t *, int32_t *, int32_t, uint8_t);
int32_t g(){}
int64_t h() {
uint8_t k = e(0);
return k;
}
uint16_t e(uint8_t j) {
uint32_t *m =
uint8_t l = 0;
f(g, m, j, j);
return l;
}
int32_t *f(int32_t *o, int32_t *n, int32_t q, uint8_t p) {
for (;;) {
int i;
for (; c <= 2;) {
int32_t *s[9][3][9] = {};
for (i = 0; i; i++)
;
for (; i;)
i = 0;
for (d = 0; d <= 2;)
return s[7][2][7];
}
for (; p; p++)
;
}
}
void main() {
int r = 0;
crc32_gentab();
h();
transparent_crc(d, "", r);
platform_main_end(crc32_context, 0);
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[llvm-bugs] Issue 14398 in oss-fuzz: llvm/llvm-microsoft-demangle-fuzzer: ASSERT: Pos >= 0
Updates: Labels: ClusterFuzz-Verified Status: Verified Comment #3 on issue 14398 by ClusterFuzz-External: llvm/llvm-microsoft-demangle-fuzzer: ASSERT: Pos >= 0 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14398#c3 ClusterFuzz testcase 5637072016113664 is verified as fixed, so closing issue as verified. If this is incorrect, please file a bug on https://github.com/google/oss-fuzz/issues/new -- You received this message because: 1. You were specifically CC'd on the issue You may adjust your notification preferences at: https://bugs.chromium.org/hosting/settings Reply to this email to add a comment. ___ llvm-bugs mailing list llvm-bugs@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] Issue 14398 in oss-fuzz: llvm/llvm-microsoft-demangle-fuzzer: ASSERT: Pos >= 0
Comment #2 on issue 14398 by ClusterFuzz-External: llvm/llvm-microsoft-demangle-fuzzer: ASSERT: Pos >= 0 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14398#c2 ClusterFuzz has detected this issue as fixed in range 201904210259:201904220257. Detailed report: https://oss-fuzz.com/testcase?key=5637072016113664 Project: llvm Fuzzer: libFuzzer_llvm_llvm-microsoft-demangle-fuzzer Fuzz target binary: llvm-microsoft-demangle-fuzzer Job Type: libfuzzer_asan_llvm Platform Id: linux Crash Type: ASSERT Crash Address: Crash State: Pos >= 0 outputEscapedChar llvm::ms_demangle::Demangler::demangleStringLiteral Sanitizer: address (ASAN) Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm=201901070410:201901080410 Fixed: https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm=201904210259:201904220257 Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=5637072016113664 See https://github.com/google/oss-fuzz/blob/master/docs/reproducing.md for instructions to reproduce this bug locally. If you suspect that the result above is incorrect, try re-doing that job on the test case report page. -- You received this message because: 1. You were specifically CC'd on the issue You may adjust your notification preferences at: https://bugs.chromium.org/hosting/settings Reply to this email to add a comment. ___ llvm-bugs mailing list llvm-bugs@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] Issue 14404 in oss-fuzz: llvm/llvm-microsoft-demangle-fuzzer: ASSERT: !MangledName.empty()
Status: New Owner: CC: k...@google.com, masc...@google.com, jdevlieg...@apple.com, igm...@gmail.com, mit...@google.com, bigchees...@gmail.com, eney...@google.com, llvm-b...@lists.llvm.org, j...@chromium.org, v...@apple.com, mitchphi...@outlook.com, xpl...@gmail.com, akils...@apple.com Labels: ClusterFuzz Stability-Memory-AddressSanitizer Reproducible Engine-libfuzzer Proj-llvm Reported-2019-04-22 Type: Bug New issue 14404 by ClusterFuzz-External: llvm/llvm-microsoft-demangle-fuzzer: ASSERT: !MangledName.empty() https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14404 Detailed report: https://oss-fuzz.com/testcase?key=5643372422758400 Project: llvm Fuzzer: libFuzzer_llvm_llvm-microsoft-demangle-fuzzer Fuzz target binary: llvm-microsoft-demangle-fuzzer Job Type: libfuzzer_asan_llvm Platform Id: linux Crash Type: ASSERT Crash Address: Crash State: !MangledName.empty() llvm::ms_demangle::Demangler::demangleCharLiteral llvm::ms_demangle::Demangler::demangleStringLiteral Sanitizer: address (ASAN) Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm=201901070410:201901080410 Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=5643372422758400 Issue filed automatically. See https://github.com/google/oss-fuzz/blob/master/docs/reproducing.md for instructions to reproduce this bug locally. When you fix this bug, please * mention the fix revision(s). * state whether the bug was a short-lived regression or an old bug in any stable releases. * add any other useful information. This information can help downstream consumers. If you need to contact the OSS-Fuzz team with a question, concern, or any other feedback, please file an issue at https://github.com/google/oss-fuzz/issues. -- You received this message because: 1. You were specifically CC'd on the issue You may adjust your notification preferences at: https://bugs.chromium.org/hosting/settings Reply to this email to add a comment. ___ llvm-bugs mailing list llvm-bugs@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] [Bug 41557] New: wrong code with "opt -structurizecfg -newgvn"
https://bugs.llvm.org/show_bug.cgi?id=41557
Bug ID: 41557
Summary: wrong code with "opt -structurizecfg -newgvn"
Product: libraries
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: Scalar Optimizations
Assignee: unassignedb...@nondot.org
Reporter: csz...@163.com
CC: llvm-bugs@lists.llvm.org
Created attachment 21808
--> https://bugs.llvm.org/attachment.cgi?id=21808=edit
.bc file of the source code
$clang -v
clang version 9.0.0 (trunk 355281)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/jack-zhou/Documents/llvm/llvm_truck/llvm/build4/bin
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/8
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5.5.0
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/6
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/6.5.0
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/7
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/7.3.0
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/8
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/7.3.0
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Candidate multilib: x32;@mx32
Selected multilib: .;@m64
$clang -O3 -c -emit-llvm -mllvm -disable-llvm-optzns small.c -o small.bc
$clang small.bc -o small1.out && ./small1.out
65535
0
0
0
0
0
0
0
0
$opt -sroa -simple-loop-unswitch -gvn small.bc -o small-opt1.bc
$clang small-opt1.bc -o small2.out && ./small2.out
65535
0
0
0
0
0
0
0
0
$opt -structurizecfg -newgvn small-opt1.bc -o small-opt2.bc
$clang small-opt2.bc -o small3.out && ./small3.out
1792
0
0
0
0
0
0
0
0
$opt -structurizecfg small-opt1.bc -o small-opt3.bc
$clang small-opt3.bc -o small4.out && ./small4.out
Segmentation fault (core dumped)
-
#include
unsigned int a, d;
unsigned short int b[1][9];
unsigned short int *c = b;
int **e;
int *f();
unsigned char g() {
f(0, 0);
return 0;
}
int *f(h, m) {
k:
if (m < *c)
for (; d;) {
*e =
for (; a;)
goto k;
}
--*c;
return 0;
}
void main() {
int i, j, l = 0;
g();
for (i = j = 0; j < 9; j++){
printf("%d\n",b[i][j]);
}
}
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[llvm-bugs] [Bug 41556] New: Bogus warning: all paths through this function will call itself
https://bugs.llvm.org/show_bug.cgi?id=41556
Bug ID: 41556
Summary: Bogus warning: all paths through this function will
call itself
Product: clang
Version: 6.0
Hardware: PC
OS: FreeBSD
Status: NEW
Severity: enhancement
Priority: P
Component: C++
Assignee: unassignedclangb...@nondot.org
Reporter: y...@tsoft.com
CC: blitzrak...@gmail.com, dgre...@apple.com,
erik.pilking...@gmail.com, llvm-bugs@lists.llvm.org,
richard-l...@metafoo.co.uk
Created attachment 21807
--> https://bugs.llvm.org/attachment.cgi?id=21807=edit
infinite-recursion-testcase.cpp
It prints this bogus warning:
> $ c++ -Wall -o infinite-recursion-testcase infinite-recursion-testcase.cpp
> infinite-recursion-testcase.cpp:9:87: warning: all paths through this
> function will call itself [-Winfinite-recursion]
> friend std::ostream& operator<<(std::ostream , const AtomSignature
> ) {
>
> ^
> 1 warning generated.
The warning is bogus because it calls itself with a different object. There is
no problem with infinite recursion there.
As long as there is variability in any of the arguments - there is no problem
with infinite recursion.
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[llvm-bugs] [Bug 41356] LLD does not handle " " in InputSectionDescriptions correctly
https://bugs.llvm.org/show_bug.cgi?id=41356 George Rimar changed: What|Removed |Added Resolution|--- |FIXED Status|CONFIRMED |RESOLVED --- Comment #3 from George Rimar --- r358874 -- You are receiving this mail because: You are on the CC list for the bug.___ llvm-bugs mailing list llvm-bugs@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] [Bug 41555] New: Problem of parse typedef with template partial specialization.
https://bugs.llvm.org/show_bug.cgi?id=41555
Bug ID: 41555
Summary: Problem of parse typedef with template partial
specialization.
Product: clang
Version: trunk
Hardware: PC
OS: Windows NT
Status: NEW
Severity: enhancement
Priority: P
Component: Tooling
Assignee: unassignedclangb...@nondot.org
Reporter: burnss...@gmail.com
CC: llvm-bugs@lists.llvm.org
I use clang libTooling version 9.0 (latest release).
I have example of code with template with template partial specialization. And
where clang while parsing ,return result invalid declaration.
Example of code:
template < class T> class TYPE_A
{
};
template < class T, class U> class TYPE_B
{
};
template < class T, class U = TYPE_A > class TYPE_B;
typedef TYPE_B B_Test;
And when I parse this construction, I received invalid declaration for B_Test
type.
I have example of dump:
TypedefDecl 0x2024d557af0
col:27 invalid B_Test 'int'
`-BuiltinType 0x2024caff080 'int'
Please, help me for resolving this problem.
Thank you.
Best Regards,
Ivan.
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[llvm-bugs] [Bug 41554] New: Constant Hoist Makes Inconsistent Code Generation
https://bugs.llvm.org/show_bug.cgi?id=41554
Bug ID: 41554
Summary: Constant Hoist Makes Inconsistent Code Generation
Product: new-bugs
Version: 7.0
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: new bugs
Assignee: unassignedb...@nondot.org
Reporter: manjian2...@gmail.com
CC: htmldevelo...@gmail.com, llvm-bugs@lists.llvm.org
#include
struct MemChunk {
int a, flags;
};
void SlowFoo(void* a, void* b);
static const int kPageSizeBits = 19;
static inline MemChunk* ToMemChunk(void* o) {
uintptr_t i = reinterpret_cast(o);
const int page_mask = ~((1 << kPageSizeBits) - 1);
i = i & page_mask;
return reinterpret_cast(i);
}
void foo(void* a, void* b) {
MemChunk* m_a = ToMemChunk(a);
if ((m_a->flags & 2) == 0)
return;
MemChunk* m_b = ToMemChunk(b);
if ((m_b->flags & 2) == 0)
return;
SlowFoo(a, b);
}
compiles with -target armv7-linux-androideabi -fPIC -O3 -mllvm -debug -S
-march=armv7-a -mfloat-abi=softfp -mfpu=neon -marm
--sysroot=/home/linzj/android-ndk-r13b/platforms/android-15/arch-arm/
--gcc-toolchain=/home/linzj/android-ndk-r13b/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/
-fomit-frame-pointer -fvisibility=hidden
And gen
mov r2, #4
mov r3, r0
bfi r3, r2, #0, #19
ldrbr2, [r3]
tst r2, #2
bxeqlr
movwr2, #0
movtr2, #65528
and r2, r1, r2
ldrbr2, [r2, #4]
tst r2, #2
bne .LBB0_2
@ %bb.1:
bx lr
.LBB0_2:
b _Z7SlowFooPvS_
note that the first and is combined as bfi instruction, but the second one
would not.
I think
mov r2, #4
mov r3, r0
bfi r3, r2, #0, #19
ldrbr3, [r3]
tst r3, #2
bxeqlr
mov r3, r1
bfi r3, r2, #0, #19
ldrbr2, [r3]
tst r2, #2
bne .LBB0_2
@ %bb.1:@ %cleanup7
bx lr
.LBB0_2:@ %if.end6
b _Z7SlowFooPvS_
is better output.
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