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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@273669 91177308-0d34-0410-b5e6-96231b3b80d8
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implement this for Mips.
Summary:
The Mips implementation only covers the feature bits described by the ELF
e_flags so far. Mips stores additional feature bits such as MSA in the
.MIPS.abiflags section.
Also fixed a small bug this revealed where microMIPS wouldn't add the
EF_MIPS_MICROMIPS flag when using -filetype=obj.
Reviewers: echristo, rafael
Subscribers: rafael, mehdi_amini, dsanders, sdardis, llvm-commits
Differential Revision: http://reviews.llvm.org/D21125
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272880 91177308-0d34-0410-b5e6-96231b3b80d8
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MC only needs to know if the output is PIC or not. It never has to
decide about creating GOTs and PLTs for example. The only thing that
MC itself uses this information for is expanding "macros" in sparc and
mips. The rest I am pretty sure could be moved to CodeGen.
This is a cleanup and isolates the code from future changes to
Reloc::Model.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@269909 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
This is much closer to the way MIPS relocation expressions work
(%hi(foo + 2) rather than %hi(foo) + 2) and removes the need for the
various bodges in MipsAsmParser::evaluateRelocExpr().
Removing those bodges ensures that the constant stored in MCValue is the
full 32 or 64-bit (depending on ABI) offset from the symbol. This will be used
to correct the %hi/%lo matching needed to sort the relocation table correctly.
As part of this:
* Gave MCExpr::print() the ability to omit parenthesis when emitting a
symbol reference inside a MipsMCExpr operator like %hi(X). Without this
we print things like %lo(($L1)).
* %hi(%neg(%gprel(X))) is now three MipsMCExpr's instead of one. Most of
the related special cases have been removed or moved to MipsMCExpr. We
can remove the rest as we gain support for the less common relocations
when they are not part of this specific combination.
* Renamed MipsMCExpr::VariantKind and the enum prefix ('VK_') to avoid confusion
with MCSymbolRefExpr::VariantKind and its prefix (also 'VK_').
* fixup_Mips_GOT_Local and fixup_Mips_GOT_Global were found to be identical
and merged into fixup_Mips_GOT.
* MO_GOT16 and MO_GOT turned out to be identical and have been merged into
MO_GOT.
* VK_Mips_GOT and VK_Mips_GOT16 turned out to be the same thing so they
have been merged into MEK_GOT
Reviewers: sdardis
Subscribers: dsanders, sdardis, llvm-commits
Differential Revision: http://reviews.llvm.org/D19716
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@268379 91177308-0d34-0410-b5e6-96231b3b80d8
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lld tests need to be addressed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265822 91177308-0d34-0410-b5e6-96231b3b80d8
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Differential Revision: http://reviews.llvm.org/D18770
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265817 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
This assembler directive is used in O32 PIC to restore the current function's $gp after executing JAL's. The $gp is first stored on the stack at a user-specified offset.
It has the following format: ".cprestore 8" (where 8 is the offset).
This fixes llvm.org/PR20967.
Patch by Toma Tabacu.
Reviewers: seanbruno, tomatabacu
Subscribers: brooks, seanbruno, emaste, llvm-commits
Differential Revision: http://reviews.llvm.org/D6267
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@247897 91177308-0d34-0410-b5e6-96231b3b80d8
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