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Implement __sync_synchronize on ppc32. Patch by Gary Benson.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55186 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -26,6 +26,9 @@ let TargetPrefix = "ppc" in { // All intrinsics start with "llvm.ppc.".
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def int_ppc_dcbtst: Intrinsic<[llvm_void_ty, llvm_ptr_ty], [IntrWriteMem]>;
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def int_ppc_dcbz : Intrinsic<[llvm_void_ty, llvm_ptr_ty], [IntrWriteMem]>;
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def int_ppc_dcbzl : Intrinsic<[llvm_void_ty, llvm_ptr_ty], [IntrWriteMem]>;
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// sync instruction
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def int_ppc_sync : Intrinsic<[llvm_void_ty], [IntrWriteMem]>;
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}
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@ -78,9 +78,6 @@ PPCTargetLowering::PPCTargetLowering(PPCTargetMachine &TM)
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// from FP_ROUND: that rounds to nearest, this rounds to zero.
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setOperationAction(ISD::FP_ROUND_INREG, MVT::ppcf128, Custom);
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// PowerPC has no intrinsics for these particular operations
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setOperationAction(ISD::MEMBARRIER, MVT::Other, Expand);
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// PowerPC has no SREM/UREM instructions
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setOperationAction(ISD::SREM, MVT::i32, Expand);
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setOperationAction(ISD::UREM, MVT::i32, Expand);
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@ -309,6 +309,17 @@ class XForm_24<bits<6> opcode, bits<10> xo, dag OOL, dag IOL, string asmstr,
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let Inst{31} = 0;
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}
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class XForm_24_sync<bits<6> opcode, bits<10> xo, dag OOL, dag IOL,
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string asmstr, InstrItinClass itin, list<dag> pattern>
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: I<opcode, OOL, IOL, asmstr, itin> {
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let Pattern = pattern;
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let Inst{6-10} = 0;
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let Inst{11-15} = 0;
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let Inst{16-20} = 0;
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let Inst{21-30} = xo;
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let Inst{31} = 0;
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}
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class XForm_25<bits<6> opcode, bits<10> xo, dag OOL, dag IOL, string asmstr,
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InstrItinClass itin, list<dag> pattern>
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: XForm_base_r3xo<opcode, xo, OOL, IOL, asmstr, itin, pattern> {
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@ -776,6 +776,10 @@ def STFDX : XForm_28<31, 727, (outs), (ins F8RC:$frS, memrr:$dst),
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[(store F8RC:$frS, xaddr:$dst)]>;
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}
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let isBarrier = 1 in
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def SYNC : XForm_24_sync<31, 598, (outs), (ins),
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"sync", LdStSync,
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[(int_ppc_sync)]>;
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//===----------------------------------------------------------------------===//
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// PPC32 Arithmetic Instructions.
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@ -1360,5 +1364,13 @@ def : Pat<(extloadf32 iaddr:$src),
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def : Pat<(extloadf32 xaddr:$src),
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(FMRSD (LFSX xaddr:$src))>;
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// Memory barriers
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def : Pat<(membarrier (i32 imm:$ll),
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(i32 imm:$ls),
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(i32 imm:$sl),
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(i32 imm:$ss),
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(i32 imm:$device)),
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(SYNC)>;
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include "PPCInstrAltivec.td"
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include "PPCInstr64Bit.td"
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