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[PowerPC] Support @tls in the asm parser

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This adds support for the last missing construct to parse TLS-related
assembler code:
   add 3, 4, symbol@tls

The ADD8TLS currently hard-codes the @tls into the assembler string.
This cannot be handled by the asm parser, since @tls is parsed as
a symbol variant.  This patch changes ADD8TLS to have the @tls suffix
printed as symbol variant on output too, which allows us to remove
the isCodeGenOnly marker from ADD8TLS.  This in turn means that we
can add a AsmOperand to accept @tls marked symbols on input.

As a side effect, this means that the fixup_ppc_tlsreg fixup type
is no longer necessary and can be merged into fixup_ppc_nofixup.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185692 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Ulrich Weigand
2013-07-05 12:22:36 +00:00
parent 87b8a7f999
commit 23a72c8f7e
11 changed files with 85 additions and 24 deletions
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6
lib/Target/PowerPC/MCTargetDesc/PPCELFObjectWriter.cpp
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@@ -289,9 +289,6 @@ unsigned PPCELFObjectWriter::getRelocTypeInner(const MCValue &Target,
break;
}
break;
case PPC::fixup_ppc_tlsreg:
Type = ELF::R_PPC64_TLS;
break;
case PPC::fixup_ppc_nofixup:
switch (Modifier) {
default: llvm_unreachable("Unsupported Modifier");
@@ -301,6 +298,9 @@ unsigned PPCELFObjectWriter::getRelocTypeInner(const MCValue &Target,
case MCSymbolRefExpr::VK_TLSLD:
Type = ELF::R_PPC64_TLSLD;
break;
case MCSymbolRefExpr::VK_PPC_TLS:
Type = ELF::R_PPC64_TLS;
break;
}
break;
case FK_Data_8: