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X86 TLS: optimize the implementation of "local exec" model.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36359 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -2467,9 +2467,15 @@ def TLS_addr : I<0, Pseudo, (ops GR32:$dst, i32imm:$sym),
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Imp<[EBX],[]>;
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let AddedComplexity = 10 in
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def TLS_gs : I<0, Pseudo, (ops GR32:$dst, GR32:$src),
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"movl %gs:($src), $dst",
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[(set GR32:$dst, (load (add X86TLStp, GR32:$src)))]>;
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def TLS_gs_rr : I<0, Pseudo, (ops GR32:$dst, GR32:$src),
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"movl %gs:($src), $dst",
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[(set GR32:$dst, (load (add X86TLStp, GR32:$src)))]>;
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let AddedComplexity = 15 in
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def TLS_gs_ri : I<0, Pseudo, (ops GR32:$dst, i32imm:$src),
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"movl %gs:${src:mem}, $dst",
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[(set GR32:$dst,
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(load (add X86TLStp, (X86Wrapper tglobaltlsaddr:$src))))]>;
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def TLS_tp : I<0, Pseudo, (ops GR32:$dst),
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"movl %gs:0, $dst",
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@ -2491,6 +2497,7 @@ def DWARF_LOC : I<0, Pseudo, (ops i32imm:$line, i32imm:$col, i32imm:$file),
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// ConstantPool GlobalAddress, ExternalSymbol, and JumpTable
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def : Pat<(i32 (X86Wrapper tconstpool :$dst)), (MOV32ri tconstpool :$dst)>;
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def : Pat<(i32 (X86Wrapper tjumptable :$dst)), (MOV32ri tjumptable :$dst)>;
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def : Pat<(i32 (X86Wrapper tglobaltlsaddr:$dst)), (MOV32ri tglobaltlsaddr:$dst)>;
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def : Pat<(i32 (X86Wrapper tglobaladdr :$dst)), (MOV32ri tglobaladdr :$dst)>;
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def : Pat<(i32 (X86Wrapper texternalsym:$dst)), (MOV32ri texternalsym:$dst)>;
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