Before:
enum ShortEnum {
A,
B,
C
};
After:
enum ShortEnum { A, B, C };
This seems to be the predominant choice in LLVM/Clang as well as in
Google style.
llvm-svn: 198558
Missed this when adding the skeleton analysis. Caught by a build break
in the next patch I'm working on when trying to use the analysis.
llvm-svn: 198556
It was previously enabled in both but should only have been part of the drop-in
quirks mode that is 'MicrosoftMode' given that it's only useful for
compatibility with the Microsoft headers/runtime.
llvm-svn: 198548
Cover a hypothetical case when we might not have reached the final argument
declaration for some reason during recovery, and split out for readability.
llvm-svn: 198542
instructions. I needed this for a quick experiment I was making, and
while I've no idea if that will ever get committed, I didn't want to
throw away the pattern match code and for anyone else to have to write
it again. I've added unittests to make sure this works correctly.
In fun news, this also uncovered the IRBuilder bug. Doh!
llvm-svn: 198541
void knrNoSemi(i) int i { }
Adherents of The C Programming Language unfortunate enough to miss a semicolon
as above would be met with a cascade of errors spanning the remainder of the
TU.
This patch introduces a beautiful parse error recovery, complete with helpful
FixIt to restore sanity.
Before (output redacted for brevity):
error: 'error' diagnostics seen but not expected:
File declarators.c Line 119: declaration does not declare a parameter
File declarators.c Line 123: declaration does not declare a parameter
File declarators.c Line 127: parameter named 'func_E12' is missing
File declarators.c Line 127: expected ';' at end of declaration
File declarators.c Line 133: parameter named 'func_E13' is missing
File declarators.c Line 133: expected ';' at end of declaration
File declarators.c Line 139: parameter named 'func_E14' is missing
File declarators.c Line 139: expected ';' at end of declaration
File declarators.c Line 145: parameter named 'func_E15' is missing
File declarators.c Line 145: expected ';' at end of declaration
File declarators.c Line 150: expected function body after function declarator
File declarators.c Line 119: declaration of 'enum E11' will not be visible outside of this function
File declarators.c Line 123: declaration of 'enum E12' will not be visible outside of this function
File declarators.c Line 133: ISO C forbids forward references to 'enum' types
File declarators.c Line 133: declaration of 'enum E13' will not be visible outside of this function
File declarators.c Line 139: ISO C forbids forward references to 'enum' types
File declarators.c Line 139: declaration of 'enum E14' will not be visible outside of this function
File declarators.c Line 145: ISO C forbids forward references to 'enum' types
File declarators.c Line 145: declaration of 'enum E15' will not be visible outside of this function
...
After:
declarators.c:103:24: error: expected ';' at end of declaration
void knrNoSemi(i) int i { }
^
;
Patch found in a sealed envelope dated 1978 with the message "Do not open until
January 2014"
llvm-svn: 198540
failed to correctly propagate the NUW and NSW flags to the constant
folder for two instructions. I've added a unittest to cover flag
propagation for the rest of the instructions and constant expressions.
llvm-svn: 198538
basic block to hold instructions, and managing all of their lifetimes in
a fixture. This makes it easy to sink the expectations into the test
cases themselves which also makes things a bit more explicit and clearer
IMO.
llvm-svn: 198532
__builtin_returnaddress requires that the value passed into is be a constant.
However, at -O0 even a constant expression may not be converted to a constant.
Emit an error message intead of crashing.
llvm-svn: 198531
All other uses of this macro in LLVM/clang have been moved to the function
definition so follow suite (and the usage advice) here too for consistency.
llvm-svn: 198516
This commit was the source of crasher PR18384:
While deleting: label %for.cond127
An asserting value handle still pointed to this value!
UNREACHABLE executed at llvm/lib/IR/Value.cpp:671!
Reverting to get the builders green, feel free to re-land after fixing up.
(Renato has a handy isolated repro if you need it.)
This reverts commit r198478.
llvm-svn: 198503
type_info has been made an implicitly predeclared type in r198497 and will no
longer appear as a user-declared type so we can remove this old hack.
This reverts commit r158595.
llvm-svn: 198502
Instead of keeping it in amongst the macros, build the declaration at Sema init
the same way we do with other predeclared and builtin types.
In practice this means the declaration is marked implicit and therefore won't
show up as an unwanted user-declared type in tooling which has been a
frequently reported issue (though I haven't been able to cook up a test).
llvm-svn: 198497
This has the dual effect of (1) enabling more dead-stripping in release builds
and (2) ensuring that debug helper functions aren't stripped away in debug
builds, as they're intended to be called from the debugger.
Note that the attribute is applied to definitions rather than declarations in
headers going forward because it's now conditional on NDEBUG:
/// \brief Mark debug helper function definitions like dump() that should not be
/// stripped from debug builds.
Requires corresponding macro added in LLVM r198456.
llvm-svn: 198489
for libcxx when compiled with Visual C++ on Win32 and Win64.
clang and gcc (MinGW) compilers provide these implementations themselves.
llvm-svn: 198481
getSCEV for an ashr instruction creates an intermediate zext
expression when it truncates its operand.
The operand is initially inside the loop, so the narrow zext
expression has a non-loop-invariant loop disposition.
LoopSimplify then runs on an outer loop, hoists the ashr operand, and
properly invalidate the SCEVs that are mapped to value.
The SCEV expression for the ashr is now an AddRec with the hoisted
value as the now loop-invariant start value.
The LoopDisposition of this wide value was properly invalidated during
LoopSimplify.
However, if we later get the ashr SCEV again, we again try to create
the intermediate zext expression. We get the same SCEV that we did
earlier, and it is still cached because it was never mapped to a
Value. When we try to create a new AddRec we abort because we're using
the old non-loop-invariant LoopDisposition.
I don't have a solution for this other than to clear LoopDisposition
when LoopSimplify hoists things.
I think the long-term strategy should be to perform LoopSimplify on
all loops before computing SCEV and before running any loop opts on
individual loops. It's possible we may want to rerun LoopSimplify on
individual loops, but it should rarely do anything, so rarely require
invalidating SCEV.
llvm-svn: 198478
This checker has not been updated to work with interprocedural analysis,
and actually contains both logical correctness issues but also
memory bugs. We can resuscitate it from version control once there
is focused interest in making it a real viable checker again.
llvm-svn: 198476
consideration the num-of-elements*width-of-element width.
Disallow casts when such width is not equal between the vector types otherwise
we may end up with an invalid LLVM bitcast.
rdar://15722308.
llvm-svn: 198474
The former will set the Address object's offset to the load address value if
it is not present in any section; the latter will only set the Address object
if the load addr is contained in one of its sections.
<rdar://problem/15135987>
llvm-svn: 198469
Daniel Jasper