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Implement __sync_synchronize on ppc32. Patch by Gary Benson.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55186 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dale Johannesen 2008-08-22 17:20:54 +00:00
parent 55beb6ded8
commit f87d6c02f5
4 changed files with 26 additions and 3 deletions
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3
include/llvm/IntrinsicsPowerPC.td
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@ -26,6 +26,9 @@ let TargetPrefix = "ppc" in { // All intrinsics start with "llvm.ppc.".
def int_ppc_dcbtst: Intrinsic<[llvm_void_ty, llvm_ptr_ty], [IntrWriteMem]>;
def int_ppc_dcbz : Intrinsic<[llvm_void_ty, llvm_ptr_ty], [IntrWriteMem]>;
def int_ppc_dcbzl : Intrinsic<[llvm_void_ty, llvm_ptr_ty], [IntrWriteMem]>;
// sync instruction
def int_ppc_sync : Intrinsic<[llvm_void_ty], [IntrWriteMem]>;
}

3
lib/Target/PowerPC/PPCISelLowering.cpp
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@ -78,9 +78,6 @@ PPCTargetLowering::PPCTargetLowering(PPCTargetMachine &TM)
// from FP_ROUND: that rounds to nearest, this rounds to zero.
setOperationAction(ISD::FP_ROUND_INREG, MVT::ppcf128, Custom);
// PowerPC has no intrinsics for these particular operations
setOperationAction(ISD::MEMBARRIER, MVT::Other, Expand);
// PowerPC has no SREM/UREM instructions
setOperationAction(ISD::SREM, MVT::i32, Expand);
setOperationAction(ISD::UREM, MVT::i32, Expand);

11
lib/Target/PowerPC/PPCInstrFormats.td
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@ -309,6 +309,17 @@ class XForm_24<bits<6> opcode, bits<10> xo, dag OOL, dag IOL, string asmstr,
let Inst{31} = 0;
}
class XForm_24_sync<bits<6> opcode, bits<10> xo, dag OOL, dag IOL,
string asmstr, InstrItinClass itin, list<dag> pattern>
: I<opcode, OOL, IOL, asmstr, itin> {
let Pattern = pattern;
let Inst{6-10} = 0;
let Inst{11-15} = 0;
let Inst{16-20} = 0;
let Inst{21-30} = xo;
let Inst{31} = 0;
}
class XForm_25<bits<6> opcode, bits<10> xo, dag OOL, dag IOL, string asmstr,
InstrItinClass itin, list<dag> pattern>
: XForm_base_r3xo<opcode, xo, OOL, IOL, asmstr, itin, pattern> {

12
lib/Target/PowerPC/PPCInstrInfo.td
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@ -776,6 +776,10 @@ def STFDX : XForm_28<31, 727, (outs), (ins F8RC:$frS, memrr:$dst),
[(store F8RC:$frS, xaddr:$dst)]>;
}
let isBarrier = 1 in
def SYNC : XForm_24_sync<31, 598, (outs), (ins),
"sync", LdStSync,
[(int_ppc_sync)]>;
//===----------------------------------------------------------------------===//
// PPC32 Arithmetic Instructions.
@ -1360,5 +1364,13 @@ def : Pat<(extloadf32 iaddr:$src),
def : Pat<(extloadf32 xaddr:$src),
(FMRSD (LFSX xaddr:$src))>;
// Memory barriers
def : Pat<(membarrier (i32 imm:$ll),
(i32 imm:$ls),
(i32 imm:$sl),
(i32 imm:$ss),
(i32 imm:$device)),
(SYNC)>;
include "PPCInstrAltivec.td"
include "PPCInstr64Bit.td"