section with TextAlignFillValue and calls EmitCodeAlignment() instead of
calling EmitValueToAlignment(). This allows x86 assembly code to be aligned
with optimal nops.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97158 91177308-0d34-0410-b5e6-96231b3b80d8
We still have the templated X86 JIT emitter, *and* the
almost-copy in X86InstrInfo for getting instruction sizes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96059 91177308-0d34-0410-b5e6-96231b3b80d8
containing the subset of the full auto generated test case that currently
encodes correctly. Again it is useful as we bring up the the new encoder
to make sure currently working stuff stays working.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95791 91177308-0d34-0410-b5e6-96231b3b80d8
in X86-32 mode. This is still required in x86-64 mode to avoid
forming [disp+rip] encoding. Rewrite the SIB byte decision logic
to be actually understandable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95693 91177308-0d34-0410-b5e6-96231b3b80d8
Lock prefix, Repeat string operation prefixes and the Segment override prefixes.
Also added versions of the move string and store string instructions without the
repeat prefixes to X86InstrInfo.td. And finally marked the rep versions of
move/store string records in X86InstrInfo.td as isCodeGenOnly = 1 so tblgen is
happy building the disassembler files.
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some mechanism for specifying alternative syntaxes, but I'm not sure what form
that should take yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95158 91177308-0d34-0410-b5e6-96231b3b80d8
It's unclear if the matcher is nondeterminstic of what here,
but I'm getting matches without TAILCALL and some other hosts
are getting matches with it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95149 91177308-0d34-0410-b5e6-96231b3b80d8
This test case is different subset of the full auto generated test case, and a
larger subset that is in x86_32-bit.s (that set will encode correctly). These
instructions can pass though llvm-mc as it were a logical cat(1) and then
reassemble to the same instruction. It is useful as we bring up the parser and
matcher so we don't break things that currently work.
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something totally broken and parsing them as immediates, but the .td file also
had the wrong match class so things sortof worked. Except, that is, that we
would parse
movl $0, %eax
as
movl 0, %eax
Feel free to guess how well that worked.
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- This test case is auto generated, and has been verified to round-trip
correctly through llvm-mc by checking the assembled .o file before and after
piping through llvm-mc. It will be extended over time as the matcher grows
support for more instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94857 91177308-0d34-0410-b5e6-96231b3b80d8
emits one directive instead of N. Not doing this would be a
significant regression on the # bytes generated by .fill.
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data on them, for example:
addb %al, (%rax)
simple-tests.txt:11:5: error: excess data detected in input
0 0 0 0 0
^
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91896 91177308-0d34-0410-b5e6-96231b3b80d8
that a symbol stub section with no attributes can be parsed as in:
.section __TEXT,__picsymbolstub4,symbol_stubs,none,16
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