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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119482 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119463 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119462 91177308-0d34-0410-b5e6-96231b3b80d8
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should get the submode from the load/store multiple instruction's opcode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119461 91177308-0d34-0410-b5e6-96231b3b80d8
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instructions have to distinguish between lists of single- and double-precision
registers in order for the ASM matcher to do a proper job. In all other
respects, a list of single- or double-precision registers are the same as a list
of GPR registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119460 91177308-0d34-0410-b5e6-96231b3b80d8
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class, uses DominatorTree which is an analysis. This change moves all of
the tricky hasConstantValue logic to SimplifyInstruction, and replaces it
with a very simple literal implementation. I already taught users of
hasConstantValue that need tricky stuff to use SimplifyInstruction instead.
I didn't update InlineFunction because the IR looks like it might be in a
funky state at the point it calls hasConstantValue, which makes calling
SimplifyInstruction dangerous since it can in theory do a lot of tricky
reasoning. This may be a pessimization, for example in the case where
all phi node operands are either undef or a fixed constant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119459 91177308-0d34-0410-b5e6-96231b3b80d8
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While there, add a note about an inefficiency I noticed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119458 91177308-0d34-0410-b5e6-96231b3b80d8
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rather than hasConstantValue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119457 91177308-0d34-0410-b5e6-96231b3b80d8
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systematically, CollapsePhi will always return null here. Note
that CollapsePhi did an extra check, isSafeReplacement, which
the SimplifyInstruction logic does not do. I think that check
was bogus - I guess we will soon find out! (It was originally
added in commit 41998 without a testcase).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119456 91177308-0d34-0410-b5e6-96231b3b80d8
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This fixes some extreme compile times on unrolled sha512 code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119455 91177308-0d34-0410-b5e6-96231b3b80d8
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operands in a variadic instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119446 91177308-0d34-0410-b5e6-96231b3b80d8
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"getRegisterListOpValue" logic. If the registers are double or single precision,
the value returned is suitable for VLDM/VSTM.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119435 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119433 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119403 91177308-0d34-0410-b5e6-96231b3b80d8
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a different pass, the complicated interaction between cmov expansion
and fast isel is no longer a concern.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119400 91177308-0d34-0410-b5e6-96231b3b80d8
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Patch by Louis Zhuang!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119394 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119386 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119385 91177308-0d34-0410-b5e6-96231b3b80d8
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Next: Add support for the !HasDotLocAndDotFile case to the MCAsmStreamer
and then switch codegen to use it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119384 91177308-0d34-0410-b5e6-96231b3b80d8
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easier to debug, and to avoid complications when the CFG changes
in the middle of the instruction selection process.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119382 91177308-0d34-0410-b5e6-96231b3b80d8
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Always spill the full representative register at any point where any subregister
is live.
This fixes PR8620 which caused the old logic to get confused and not spill
anything at all.
The fundamental problem here is that the coalescer is too aggressive about
physical register coalescing. It sometimes makes it impossible to allocate
registers without these emergency spills.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119375 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119374 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119362 91177308-0d34-0410-b5e6-96231b3b80d8
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The system API's will be shifted over to returning an error_code, and returning
other return values as out parameters to the function.
Code that needs to check error conditions will use the errc enum values which
are the same as the posix_errno defines (EBADF, E2BIG, etc...), and are
compatable with the error codes in WinError.h due to some magic in system_error.
An example would be:
if (error_code ec = KillEvil("Java")) { // error_code can be converted to bool.
handle_error(ec);
}
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119360 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119354 91177308-0d34-0410-b5e6-96231b3b80d8
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rather than calling hasConstantValue. No intended functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119352 91177308-0d34-0410-b5e6-96231b3b80d8
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over a phi node by applying it to each operand may be wrong if the
operation and the phi node are mutually interdependent (the testcase
has a simple example of this). So only do this transform if it would
be correct to perform the operation in each predecessor of the block
containing the phi, i.e. if the other operands all dominate the phi.
This should fix the FFMPEG snow.c regression reported by İsmail Dönmez.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119347 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119328 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119325 91177308-0d34-0410-b5e6-96231b3b80d8
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- Add encodings to the *LDMIA_RET instrs. Probably not needed...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119323 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119321 91177308-0d34-0410-b5e6-96231b3b80d8
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(and likely) wrong about anyhow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119320 91177308-0d34-0410-b5e6-96231b3b80d8
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branches to be emitted as:
bne cr0, 2
instead of:
bne cr0, $+8
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119317 91177308-0d34-0410-b5e6-96231b3b80d8
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'db', 'ib', 'da') instead of having that mode as a separate field in the
instruction. It's more convenient for the asm parser and much more readable for
humans.
<rdar://problem/8654088>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119310 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119309 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119308 91177308-0d34-0410-b5e6-96231b3b80d8
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these instructions to be encoded with getMachineOpValue.
This unbreaks ExecutionEngine/2003-01-04-ArgumentBug.ll
when running on a G5
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119307 91177308-0d34-0410-b5e6-96231b3b80d8
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Use amazing new function call technology instead of writing identical code in
multiple places.
This fixes PR8604.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119306 91177308-0d34-0410-b5e6-96231b3b80d8
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The live range of a register defined by an early clobber starts at the use slot,
not the def slot.
Except when it is an early clobber tied to a use operand. Then it starts at the
def slot like a standard def.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119305 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119295 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119286 91177308-0d34-0410-b5e6-96231b3b80d8
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to be broken for other reasons
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119283 91177308-0d34-0410-b5e6-96231b3b80d8
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This reverts r119183 which borke the buildbots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119270 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119187 91177308-0d34-0410-b5e6-96231b3b80d8
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iterator, not TII->OptimizeCompareInstr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119186 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119185 91177308-0d34-0410-b5e6-96231b3b80d8
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pass in the first place and was masked by earlier failures not warning
and aborting the block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119184 91177308-0d34-0410-b5e6-96231b3b80d8
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The live range of a register defined by an early clobber starts at the use slot,
not the def slot.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119183 91177308-0d34-0410-b5e6-96231b3b80d8
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live ranges for the spill register are also defined at the use slot instead of
the normal def slot.
This fixes PR8612 for the inline spiller. A use was being allocated to the same
register as a spilled early clobber def.
This problem exists in all the spillers. A fix for the standard spiller is
forthcoming.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119182 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119180 91177308-0d34-0410-b5e6-96231b3b80d8
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