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Conflicts:
docs/LangRef.rst
include/llvm/CodeGen/CallingConvLower.h
include/llvm/IRReader/IRReader.h
include/llvm/Target/TargetMachine.h
lib/CodeGen/CallingConvLower.cpp
lib/IRReader/IRReader.cpp
lib/IRReader/LLVMBuild.txt
lib/IRReader/Makefile
lib/LLVMBuild.txt
lib/Makefile
lib/Support/MemoryBuffer.cpp
lib/Support/Unix/PathV2.inc
lib/Target/ARM/ARMBaseInstrInfo.cpp
lib/Target/ARM/ARMISelLowering.cpp
lib/Target/ARM/ARMInstrInfo.td
lib/Target/ARM/ARMSubtarget.cpp
lib/Target/ARM/ARMTargetMachine.cpp
lib/Target/Mips/CMakeLists.txt
lib/Target/Mips/MipsDelaySlotFiller.cpp
lib/Target/Mips/MipsISelLowering.cpp
lib/Target/Mips/MipsInstrInfo.td
lib/Target/Mips/MipsSubtarget.cpp
lib/Target/Mips/MipsSubtarget.h
lib/Target/X86/X86FastISel.cpp
lib/Target/X86/X86ISelDAGToDAG.cpp
lib/Target/X86/X86ISelLowering.cpp
lib/Target/X86/X86InstrControl.td
lib/Target/X86/X86InstrFormats.td
lib/Transforms/IPO/ExtractGV.cpp
lib/Transforms/InstCombine/InstCombineCompares.cpp
lib/Transforms/Utils/SimplifyLibCalls.cpp
test/CodeGen/X86/fast-isel-divrem.ll
test/MC/ARM/data-in-code.ll
tools/Makefile
tools/llvm-extract/llvm-extract.cpp
tools/llvm-link/CMakeLists.txt
tools/opt/CMakeLists.txt
tools/opt/LLVMBuild.txt
tools/opt/Makefile
tools/opt/opt.cpp
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During LTO, the target options on functions within the same Module may
change. This would necessitate resetting some of the back-end. Do this for X86,
because it's a Friday afternoon.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178917 91177308-0d34-0410-b5e6-96231b3b80d8
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Conflicts:
include/llvm/CodeGen/LexicalScopes.h
include/llvm/MC/MCAsmInfo.h
lib/Linker/LinkArchives.cpp
lib/Linker/LinkItems.cpp
lib/MC/MCAsmInfo.cpp
lib/MC/MCDwarf.cpp
lib/Target/ARM/ARMInstrInfo.td
lib/Target/ARM/ARMSubtarget.cpp
lib/Target/ARM/MCTargetDesc/ARMMCTargetDesc.cpp
lib/Target/Mips/MCTargetDesc/MipsELFObjectWriter.cpp
lib/Target/Mips/MCTargetDesc/MipsMCTargetDesc.cpp
lib/Target/Mips/MipsAsmPrinter.cpp
lib/Target/Mips/MipsDelaySlotFiller.cpp
lib/Target/Mips/MipsISelDAGToDAG.cpp
lib/Target/Mips/MipsSubtarget.cpp
lib/Target/Mips/MipsSubtarget.h
lib/Target/Mips/MipsTargetObjectFile.cpp
lib/Target/X86/MCTargetDesc/X86MCAsmInfo.cpp
lib/Target/X86/X86FastISel.cpp
lib/Target/X86/X86ISelLowering.cpp
lib/Target/X86/X86TargetMachine.cpp
lib/Transforms/CMakeLists.txt
lib/Transforms/LLVMBuild.txt
lib/Transforms/Makefile
test/MC/ARM/arm_instructions.s
test/MC/X86/AlignedBundling/pad-align-to-bundle-end.s
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173285 91177308-0d34-0410-b5e6-96231b3b80d8
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deplib features commented out due to removal upstream;
will add back as a localmod
Conflicts:
include/llvm/ADT/Triple.h
include/llvm/MC/MCAssembler.h
include/llvm/Target/TargetFrameLowering.h
lib/CodeGen/AsmPrinter/DwarfDebug.cpp
lib/CodeGen/AsmPrinter/DwarfDebug.h
lib/CodeGen/BranchFolding.cpp
lib/LLVMBuild.txt
lib/Linker/LinkArchives.cpp
lib/MC/MCAssembler.cpp
lib/MC/MCELFStreamer.cpp
lib/Makefile
lib/Target/ARM/ARMExpandPseudoInsts.cpp
lib/Target/ARM/ARMFrameLowering.cpp
lib/Target/ARM/ARMISelLowering.cpp
lib/Target/ARM/ARMSubtarget.h
lib/Target/ARM/ARMTargetObjectFile.cpp
lib/Target/ARM/MCTargetDesc/ARMAsmBackend.cpp
lib/Target/Mips/MipsInstrFPU.td
lib/Target/Mips/MipsInstrInfo.td
lib/Target/X86/X86CodeEmitter.cpp
lib/Target/X86/X86Subtarget.h
lib/VMCore/Module.cpp
test/MC/MachO/ARM/nop-armv4-padding.s
tools/Makefile
tools/llc/llc.cpp
tools/lto/LTOModule.cpp
tools/lto/lto.cpp
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168937 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168936 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167622 91177308-0d34-0410-b5e6-96231b3b80d8
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rdar://12340498
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167620 91177308-0d34-0410-b5e6-96231b3b80d8
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PR9673
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162284 91177308-0d34-0410-b5e6-96231b3b80d8
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This merges r159618 from upstream into master. It goes with clang rev
af50aab0c317462129d73ae8000c6394c718598d
Conflicts:
include/llvm/CodeGen/LexicalScopes.h
include/llvm/Target/TargetOptions.h
lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
lib/Target/ARM/ARMBaseInstrInfo.cpp
lib/Target/ARM/ARMTargetMachine.cpp
lib/Target/ARM/ARMTargetObjectFile.cpp
lib/Target/Mips/MCTargetDesc/MipsAsmBackend.cpp
lib/Target/Mips/MipsISelDAGToDAG.cpp
lib/Target/Mips/MipsInstrFPU.td
lib/Target/Mips/MipsMCInstLower.cpp
lib/Target/Mips/MipsTargetMachine.cpp
lib/Target/TargetMachine.cpp
lib/Target/X86/X86ISelLowering.cpp
lib/Target/X86/X86RegisterInfo.cpp
lib/Target/X86/X86TargetObjectFile.cpp
lib/Target/X86/X86TargetObjectFile.h
tools/llc/llc.cpp
(tools/llc/llc.cpp is from a merged version of r160532 because it was a bit
hairy and I didn't want to redo it.)
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(only non-new files; new files in git 4f429c8b)
Change-Id: Ia39f818088485bd90e4d048db404f8d6ba5f836b
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instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159611 91177308-0d34-0410-b5e6-96231b3b80d8
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boolean flag to an enum: { Fast, Standard, Strict } (default = Standard).
This option controls the creation by optimizations of fused FP ops that store
intermediate results in higher precision than IEEE allows (E.g. FMAs). The
behavior of this option is intended to match the behaviour specified by a
soon-to-be-introduced frontend flag: '-ffuse-fp-ops'.
Fast mode - allows formation of fused FP ops whenever they're profitable.
Standard mode - allow fusion only for 'blessed' FP ops. At present the only
blessed op is the fmuladd intrinsic. In the future more blessed ops may be
added.
Strict mode - allow fusion only if/when it can be proven that the excess
precision won't effect the result.
Note: This option only controls formation of fused ops by the optimizers. Fused
operations that are explicitly requested (e.g. FMA via the llvm.fma.* intrinsic)
will always be honored, regardless of the value of this option.
Internally TargetOptions::AllowExcessFPPrecision has been replaced by
TargetOptions::AllowFPOpFusion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158956 91177308-0d34-0410-b5e6-96231b3b80d8
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This patch adds DAG combines to form FMAs from pairs of FADD + FMUL or
FSUB + FMUL. The combines are performed when:
(a) Either
AllowExcessFPPrecision option (-enable-excess-fp-precision for llc)
OR
UnsafeFPMath option (-enable-unsafe-fp-math)
are set, and
(b) TargetLoweringInfo::isFMAFasterThanMulAndAdd(VT) is true for the type of
the FADD/FSUB, and
(c) The FMUL only has one user (the FADD/FSUB).
If your target has fast FMA instructions you can make use of these combines by
overriding TargetLoweringInfo::isFMAFasterThanMulAndAdd(VT) to return true for
types supported by your FMA instruction, and adding patterns to match ISD::FMA
to your FMA instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158757 91177308-0d34-0410-b5e6-96231b3b80d8
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TargetLoweringObjectFileELF. Use this to support it on X86. Unlike ARM,
on X86 it is not easy to find out if .init_array should be used or not, so
the decision is made via TargetOptions and defaults to off.
Add a command line option to llc that enables it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158692 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154488 91177308-0d34-0410-b5e6-96231b3b80d8
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optimizations which are valid for position independent code being linked
into a single executable, but not for such code being linked into
a shared library.
I discussed the design of this with Eric Christopher, and the decision
was to support an optional bit rather than a completely separate
relocation model. Fundamentally, this is still PIC relocation, its just
that certain optimizations are only valid under a PIC relocation model
when the resulting code won't be in a shared library. The simplest path
to here is to expose a single bit option in the TargetOptions. If folks
have different/better designs, I'm all ears. =]
I've included the first optimization based upon this: changing TLS
models to the *Exec models when PIE is enabled. This is the LLVM
component of PR12380 and is all of the hard work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154294 91177308-0d34-0410-b5e6-96231b3b80d8
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Creates a configurable regalloc pipeline.
Ensure specific llc options do what they say and nothing more: -reglloc=... has no effect other than selecting the allocator pass itself. This patch introduces a new umbrella flag, "-optimize-regalloc", to enable/disable the optimizing regalloc "superpass". This allows for example testing coalscing and scheduling under -O0 or vice-versa.
When a CodeGen pass requires the MachineFunction to have a particular property, we need to explicitly define that property so it can be directly queried rather than naming a specific Pass. For example, to check for SSA, use MRI->isSSA, not addRequired<PHIElimination>.
CodeGen transformation passes are never "required" as an analysis
ProcessImplicitDefs does not require LiveVariables.
We have a plan to massively simplify some of the early passes within the regalloc superpass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150226 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148442 91177308-0d34-0410-b5e6-96231b3b80d8
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More short term hackery until we have a way to configure passes that work on LiveIntervals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148289 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148105 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148104 91177308-0d34-0410-b5e6-96231b3b80d8
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change, now you need a TargetOptions object to create a TargetMachine. Clang
patch to follow.
One small functionality change in PTX. PTX had commented out the machine
verifier parts in their copy of printAndVerify. That now calls the version in
LLVMTargetMachine. Users of PTX who need verification disabled should rely on
not passing the command-line flag to enable it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145714 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143722 91177308-0d34-0410-b5e6-96231b3b80d8
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-segmented-stacks.
Patch by Sanjoy Das!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138811 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133739 91177308-0d34-0410-b5e6-96231b3b80d8
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LTO friendly as we can now correctly merge files compiled with or without
-fasynchronous-unwind-tables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132033 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129884 91177308-0d34-0410-b5e6-96231b3b80d8
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is lowered into a call to the specified trap function at sdisel time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129152 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129045 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109775 91177308-0d34-0410-b5e6-96231b3b80d8
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-enable-no-nans-fp-math and -enable-no-infs-fp-math. All of the current codegen fp math optimizations only care whether the fp arithmetics arguments and results can never be NaN.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108465 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108272 91177308-0d34-0410-b5e6-96231b3b80d8
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Remove the -enable-eh option which is only used by the JIT,
and replace it with -jit-enable-eh.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102865 91177308-0d34-0410-b5e6-96231b3b80d8
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optimization for non-leaf functions. This will be hooked up to gcc's
-momit-leaf-frame-pointer option. rdar://7886181
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101984 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98704 91177308-0d34-0410-b5e6-96231b3b80d8
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its current purpose.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95564 91177308-0d34-0410-b5e6-96231b3b80d8
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- Move DisableScheduling flag into TargetOption.h
- Move SDNodeOrdering into its own header file. Give it a minimal interface that
doesn't conflate construction with storage.
- Move assigning the ordering into the SelectionDAGBuilder.
This isn't used yet, so there should be no functional changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91727 91177308-0d34-0410-b5e6-96231b3b80d8
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feature, either build the JIT in debug mode to enable it by default or pass
-jit-emit-debug to lli.
Right now, the only debug information that this communicates to GDB is call
frame information, since it's already being generated to support exceptions in
the JIT. Eventually, when DWARF generation isn't tied so tightly to AsmPrinter,
it will be easy to push that information to GDB through this interface.
Here's a step-by-step breakdown of how the feature works:
- The JIT generates the machine code and DWARF call frame info
(.eh_frame/.debug_frame) for a function into memory.
- The JIT copies that info into an in-memory ELF file with a symbol for the
function.
- The JIT creates a code entry pointing to the ELF buffer and adds it to a
linked list hanging off of a global descriptor at a special symbol that GDB
knows about.
- The JIT calls a function marked noinline that GDB knows about and has put an
internal breakpoint in.
- GDB catches the breakpoint and reads the global descriptor to look for new
code.
- When sees there is new code, it reads the ELF from the inferior's memory and
adds it to itself as an object file.
- The JIT continues, and the next time we stop the program, we are able to
produce a proper backtrace.
Consider running the following program through the JIT:
#include <stdio.h>
void baz(short z) {
long w = z + 1;
printf("%d, %x\n", w, *((int*)NULL)); // SEGFAULT here
}
void bar(short y) {
int z = y + 1;
baz(z);
}
void foo(char x) {
short y = x + 1;
bar(y);
}
int main(int argc, char** argv) {
char x = 1;
foo(x);
}
Here is a backtrace before this patch:
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x2aaaabdfbd10 (LWP 25476)]
0x00002aaaabe7d1a8 in ?? ()
(gdb) bt
#0 0x00002aaaabe7d1a8 in ?? ()
#1 0x0000000000000003 in ?? ()
#2 0x0000000000000004 in ?? ()
#3 0x00032aaaabe7cfd0 in ?? ()
#4 0x00002aaaabe7d12c in ?? ()
#5 0x00022aaa00000003 in ?? ()
#6 0x00002aaaabe7d0aa in ?? ()
#7 0x01000002abe7cff0 in ?? ()
#8 0x00002aaaabe7d02c in ?? ()
#9 0x0100000000000001 in ?? ()
#10 0x00000000014388e0 in ?? ()
#11 0x00007fff00000001 in ?? ()
#12 0x0000000000b870a2 in llvm::JIT::runFunction (this=0x1405b70,
F=0x14024e0, ArgValues=@0x7fffffffe050)
at /home/rnk/llvm-gdb/lib/ExecutionEngine/JIT/JIT.cpp:395
#13 0x0000000000baa4c5 in llvm::ExecutionEngine::runFunctionAsMain
(this=0x1405b70, Fn=0x14024e0, argv=@0x13f06f8, envp=0x7fffffffe3b0)
at /home/rnk/llvm-gdb/lib/ExecutionEngine/ExecutionEngine.cpp:377
#14 0x00000000007ebd52 in main (argc=2, argv=0x7fffffffe398,
envp=0x7fffffffe3b0) at /home/rnk/llvm-gdb/tools/lli/lli.cpp:208
And a backtrace after this patch:
Program received signal SIGSEGV, Segmentation fault.
0x00002aaaabe7d1a8 in baz ()
(gdb) bt
#0 0x00002aaaabe7d1a8 in baz ()
#1 0x00002aaaabe7d12c in bar ()
#2 0x00002aaaabe7d0aa in foo ()
#3 0x00002aaaabe7d02c in main ()
#4 0x0000000000b870a2 in llvm::JIT::runFunction (this=0x1405b70,
F=0x14024e0, ArgValues=...)
at /home/rnk/llvm-gdb/lib/ExecutionEngine/JIT/JIT.cpp:395
#5 0x0000000000baa4c5 in llvm::ExecutionEngine::runFunctionAsMain
(this=0x1405b70, Fn=0x14024e0, argv=..., envp=0x7fffffffe3c0)
at /home/rnk/llvm-gdb/lib/ExecutionEngine/ExecutionEngine.cpp:377
#6 0x00000000007ebd52 in main (argc=2, argv=0x7fffffffe3a8,
envp=0x7fffffffe3c0) at /home/rnk/llvm-gdb/tools/lli/lli.cpp:208
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82418 91177308-0d34-0410-b5e6-96231b3b80d8
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and short. Well, it's kinda short. Definitely nasty and brutish.
The front-end generates the register/unregister calls into the SjLj runtime,
call-site indices and landing pad dispatch. The back end fills in the LSDA
with the call-site information provided by the front end. Catch blocks are
not yet implemented.
Built on Darwin and verified no llvm-core "make check" regressions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78625 91177308-0d34-0410-b5e6-96231b3b80d8
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be self contained, and it isn't used from TM.h
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77857 91177308-0d34-0410-b5e6-96231b3b80d8
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ABI. The missing piece is support for putting "homogeneous aggregates"
into registers.
Patch by Sandeep Patel!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73095 91177308-0d34-0410-b5e6-96231b3b80d8
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Update code generator to use this attribute and remove NoImplicitFloat target option.
Update llc to set this attribute when -no-implicit-float command line option is used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72959 91177308-0d34-0410-b5e6-96231b3b80d8
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Update code generator to use this attribute and remove DisableRedZone target option.
Update llc to set this attribute when -disable-red-zone command line option is used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72894 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70340 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70275 91177308-0d34-0410-b5e6-96231b3b80d8
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use the old behavior, the flag is -O0. This change allows for finer-grained
control over which optimizations are run at different -O levels.
Most of this work was pretty mechanical. The majority of the fixes came from
verifying that a "fast" variable wasn't used anymore. The JIT still uses a
"Fast" flag. I'm not 100% sure if it's necessary to change it there...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70270 91177308-0d34-0410-b5e6-96231b3b80d8
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default to verbose.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67668 91177308-0d34-0410-b5e6-96231b3b80d8
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