Some targets need special LLVM calling convention for CUDA kernel.
This patch does that through a TargetCodeGenInfo hook.
It only affects amdgcn target.
Patch by Greg Rodgers.
Revised and lit tests added by Yaxun Liu.
Differential Revision: https://reviews.llvm.org/D45223
llvm-svn: 330447
It also adds a check making sure PHIs for operands are all in the same
block.
Patch by Daniel Berlin <dberlin@dberlin.org>
Reviewers: dberlin, davide
Differential Revision: https://reviews.llvm.org/D43865
llvm-svn: 330444
Summary:
By default Clang outputs its version (including git commit hash, in
case of trunk builds) into object and assembly files. It might be
useful to have an option to disable this, especially for debugging
purposes.
This patch implements new command line flags -Qn and -Qy (the names
are chosen for compatibility with GCC). -Qn disables output of
the 'llvm.ident' metadata string and the 'producer' debug info. -Qy
(enabled by default) does the opposite.
Reviewers: faisalv, echristo, aprantl
Reviewed By: aprantl
Subscribers: aprantl, cfe-commits, JDevlieghere, rogfer01
Differential Revision: https://reviews.llvm.org/D45255
llvm-svn: 330442
Updated two more debug line related warnings to use WithColor. This was
necessary to ensure consistent output order of the warnings on Windows
for debug line tests.
Differential Revision: https://reviews.llvm.org/D45871
llvm-svn: 330440
This was originally committed at rL328921 and reverted at rL329920 to
investigate failures in Chrome. This time I've added to the ReleaseNotes
to warn users of the potential of exposing UB and let me repeat that
here for more exposure:
Optimization of floating-point casts is improved. This may cause surprising
results for code that is relying on undefined behavior. Code sanitizers can
be used to detect affected patterns such as this:
int main() {
float x = 4294967296.0f;
x = (float)((int)x);
printf("junk in the ftrunc: %f\n", x);
return 0;
}
$ clang -O1 ftrunc.c -fsanitize=undefined ; ./a.out
ftrunc.c:5:15: runtime error: 4.29497e+09 is outside the range of
representable values of type 'int'
junk in the ftrunc: 0.000000
Original commit message:
fptosi / fptoui round towards zero, and that's the same behavior as ISD::FTRUNC,
so replace a pair of casts with the equivalent node. We don't have to account for
special cases (NaN, INF) because out-of-range casts are undefined.
Differential Revision: https://reviews.llvm.org/D44909
llvm-svn: 330437
Reapply the patches with a fix. Thanks Ilya and Hans for the reproducer!
This reverts commit r330416.
The issue was that removing predecessors invalidated uses that we stored
for rewrite. The fix is to finish manipulating with CFG before we select
uses for rewrite.
llvm-svn: 330431
nvcc generates a unique registration function for each object file
that contains relocatable device code. Unique names are achieved
with a module id that is also reflected in the function's name.
Differential Revision: https://reviews.llvm.org/D42922
llvm-svn: 330425
This patch updates AddGoldPlugin to pass stats-file to the Gold plugin,
if -save-stats is passed. It also moves the save-stats option handling
to a helper function tools::getStatsFileName.
Reviewers: tejohnson, mehdi_amini, compnerd
Reviewed By: tejohnson, compnerd
Differential Revision: https://reviews.llvm.org/D45771
llvm-svn: 330422
This patch adds the ability for the ObjectYAML DWARFEmitter to calculate
the lengths of DIEs. This is accomplished by creating a DIEFixupVisitor
class which traverses the DWARF DIEs to calculate and fix up the lengths
in the Compile Unit header.
The DIEFixupVisitor can be extended in the future to enable more complex
fix ups which will enable simplified YAML string representations.
This is also very useful when using the YAML format in unit tests
because you no longer need to know the length of the compile unit when
writing the YAML string.
Differential commandeered from Chris Bieneman (beanz)
Differential revision: https://reviews.llvm.org/D30666
llvm-svn: 330421
The script was using Python's difflib module to calculate the number of
lines changed so that it could report it in its status output. It turns
out this can be very very slow on large sets of lines (Python bug 6931).
It's not worth the cost, so just remove the usage of difflib entirely.
llvm-svn: 330419
Summary: This makes C++/objC not totally broken, without hurting C files too much.
Reviewers: ilya-biryukov
Subscribers: klimek, jkorous-apple, ioeric, cfe-commits
Differential Revision: https://reviews.llvm.org/D45442
llvm-svn: 330418
Revert r330413: "[SSAUpdaterBulk] Use SmallVector instead of DenseMap for storing rewrites."
Revert r330403 "Reapply "[PR16756] Use SSAUpdaterBulk in JumpThreading." one more time."
r330403 commit seems to crash clang during our integrate while doing PGO build with the following stacktrace:
#2 llvm::SSAUpdaterBulk::RewriteAllUses(llvm::DominatorTree*, llvm::SmallVectorImpl<llvm::PHINode*>*)
#3 llvm::JumpThreadingPass::ThreadEdge(llvm::BasicBlock*, llvm::SmallVectorImpl<llvm::BasicBlock*> const&, llvm::BasicBlock*)
#4 llvm::JumpThreadingPass::ProcessThreadableEdges(llvm::Value*, llvm::BasicBlock*, llvm::jumpthreading::ConstantPreference, llvm::Instruction*)
#5 llvm::JumpThreadingPass::ProcessBlock(llvm::BasicBlock*)
The crash happens while compiling 'lib/Analysis/CallGraph.cpp'.
r3340413 is reverted due to conflicting changes.
llvm-svn: 330416
On Windows, %llc_dwarf automatically adds -mtriple causing this test to
error. Changed %llc_dwarf to llc.
Differential Revision: https://reviews.llvm.org/D45869
llvm-svn: 330414
Summary:
This is a small refactoring to extract the svn checkout code from the
build script used inside the docker image.
This would give more flexibility if more than a single invocation of
cmake is needed inside the docker image.
User-facing interface (build_docker_image.sh) hasn't changed, only the
internal scripts running inside the build container are affected.
Reviewers: ioeric
Reviewed By: ioeric
Subscribers: mehdi_amini, llvm-commits
Differential Revision: https://reviews.llvm.org/D45868
llvm-svn: 330412
This patch adds a StatsFile option to LTO/Config.h and updates both
LLVMGold and llvm-lto2 to set it.
Reviewers: MatzeB, tejohnson, espindola
Reviewed By: tejohnson
Differential Revision: https://reviews.llvm.org/D45531
llvm-svn: 330411
XML printer.
A test has been added that tries to comprehensively test emitting
XUnit XML output for shell tests.
Differential Revision: https://reviews.llvm.org/D45567
llvm-svn: 330409
Hopefully, changing set to vector removes nondeterminism detected by
some bots, or the new assert will catch something.
This reverts commit r330180.
llvm-svn: 330403
Yaxun Liu