that it coalesces normal copies.
Without this, MachineCSE is powerless to handle redundant operations
with truncated source operands.
This required fixing the 2-addr pass to handle tied subregisters. It
isn't clear what combinations of subregisters can legally be tied, but
the simple case of truncated source operands is now safely handled:
%vreg11<def> = COPY %vreg1:sub_32bit; GR32:%vreg11 GR64:%vreg1
%vreg12<def> = COPY %vreg2:sub_32bit; GR32:%vreg12 GR64:%vreg2
%vreg13<def,tied1> = ADD32rr %vreg11<tied0>, %vreg12<kill>, %EFLAGS<imp-def>
llvm-svn: 197414
This reverts commit 2b43f500cfea10a8c59c986dcfc24fd08eecc77d.
This was accidentally committed because I failed to notice my client
wasn't clean prior to submitting a fix for a crasher.
llvm-svn: 197410
CXXScopeSpec when necessary while performing typo correction. This fixes
the crash reported in PR18213 (the problem existed since r185487, and
r193020 made it easier to hit).
llvm-svn: 197409
This was manifesting as an LLVM_ASSUME_ALIGNED() failure in an ELF debug
info test when building LLVM with clang in the Microsoft C++ ABI.
llvm-svn: 197401
Instead, mark the module as unavailable so that clang errors as soon as
someone tries to build this module.
A better long-term strategy might be to not stat the header files at all
while reading the module map and instead read them only when the module
is being built (there is a corresponding FIXME in parseHeaderDecl()).
However, it seems non-trivial to get there and this would be a temporary
solution to unblock us.
Also changed the implementation to reuse the same DiagnosticsEngine as
otherwise warnings can't be enabled or disabled with command-line flags.
llvm-svn: 197388
BreakConstructorInitializersBeforeComma is true.
This option is used in WebKit style, so this also ensures initializer lists are
not put on a single line, as per the WebKit coding guidelines.
Patch by Florian Sowade!
llvm-svn: 197386
Added scalar compare VCMPSS, VCMPSD.
Implemented LowerSELECT for scalar FP operations.
I replaced FSETCCss, FSETCCsd with one node type FSETCCs.
Node extract_vector_elt(v16i1/v8i1, idx) returns an element of type i1.
llvm-svn: 197384
*h_errno is written not on success, but on failure.
In fact, it seems like it can be written even when return value signals
success, so we just unpoison it in all cases.
llvm-svn: 197383
FIXME: Host's llvm-config is not generated. It's for target's.
Host tools, aka "BuildTools", in utils, do not require llvm-config to build.
For example with --host=i686-pc-mingw32 --build=linux,
$ BuildTools/Release+Asserts/bin/llvm-config --libs support
-lLLVMSupport
-lpthread -lshell32 -lpsapi -limagehlp -lm
llvm-svn: 197382
LLVM libs are printed in the first line, and system libs are printed in the next line.
$ bin/llvm-config --libs object
-lLLVMObject -lLLVMSupport
-lrt -ldl -ltinfo -lpthread -lz
It is workaround for PR3347 and PR8449.
llvm-svn: 197380
Summary:
-regex and -iregex both mimic options of the find utility.
Made the default list of extensions case-insensitive, so that it's not only C
and CPP extensions are accepted in upper case.
Reviewers: djasper
Reviewed By: djasper
CC: cfe-commits
Differential Revision: http://llvm-reviews.chandlerc.com/D2415
llvm-svn: 197378
If NONAME option is given for an export, that symbol will be exported only by
its ordinal. LLD will not emit the symbol name to the export table.
llvm-svn: 197371
Especially try to keep existing line breaks before raw string literals,
as the code author might have aligned content to it.
Thereby, clang-format now keeps things like:
parseStyle(R"(
BasedOnStyle: Google,
ColumnLimit: 100)");
parseStyle(
R"(BasedOnStyle: Google,
ColumnLimit: 100)");
llvm-svn: 197368
OrdinalBase is an addend to the ordinals. We used to always set 1 to the field.
Although it produced a valid a DLL export table, it'd be a waste if the first
ordinal does not start with 1 -- we had to have NULL fields at the beginning of
the export address table. By setting the ordinal base, we can eliminate the
NULL fields.
llvm-svn: 197367
You can specify exported function's ordinal by /export:func,@<number> command
line option, but LLD ignored the option until now. This patch implements the
feature.
Ordinal is basically the index into the exported function address table. So,
for example, if /export:foo,@42 is specified, the linker writes foo's address
to 42th entry in the address table. Windows supports import-by-ordinal; you
can not only import a function by name, but by its ordinal. If you want to
allow your DLL users to import your functions by their ordinals, you need to
make sure that your functions are always exported with the same ordinals.
This is the feature for that situation.
llvm-svn: 197364
An empty string for an ASM input constraint is invalid, and will crash
during clang CodeGen. Change TargetInfo::validateInputConstraint to
reject an empty string.
<rdar://problem/15552191>
llvm-svn: 197362
Currently we have such types as legal vector types. The DAG combiner may generate some DAG nodes having such types but we don't have patterns to match them.
E.g. a load i32 and a bitcast i32 to v1i32 will be combined into a load v1i32:
bitcast (load i32) to v1i32 -> load v1i32.
So this patch fixes such problems for load/dup instructions.
If v1i8/v1i16/v1i32 are not legal any more, the code in this patch can be deleted. So I also add some FIXME.
llvm-svn: 197361
Rafael Espindola