Mercurial > hg > truffle
diff graal/com.oracle.graal.lir.sparc/src/com/oracle/graal/lir/sparc/SPARCBitManipulationOp.java @ 9949:41511d78546a
SPARC UA 2011 assembler changes, bit manipulation synthetics
| author | Morris Meyer <morris.meyer@oracle.com> |
|---|---|
| date | Sat, 08 Jun 2013 16:54:41 -0400 |
| parents | fbeda9df497d |
| children | f78079947084 |
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--- a/graal/com.oracle.graal.lir.sparc/src/com/oracle/graal/lir/sparc/SPARCBitManipulationOp.java Sat Jun 08 15:44:39 2013 +0200 +++ b/graal/com.oracle.graal.lir.sparc/src/com/oracle/graal/lir/sparc/SPARCBitManipulationOp.java Sat Jun 08 16:54:41 2013 -0400 @@ -22,9 +22,16 @@ */ package com.oracle.graal.lir.sparc; +import static com.oracle.graal.asm.sparc.SPARCAssembler.Andn; +import static com.oracle.graal.asm.sparc.SPARCAssembler.Ldsw; +import static com.oracle.graal.asm.sparc.SPARCAssembler.Ldx; +import static com.oracle.graal.asm.sparc.SPARCAssembler.Or; import static com.oracle.graal.asm.sparc.SPARCAssembler.Popc; import static com.oracle.graal.asm.sparc.SPARCAssembler.Srl; +import static com.oracle.graal.asm.sparc.SPARCAssembler.Srlx; +import static com.oracle.graal.asm.sparc.SPARCAssembler.Sub; import static com.oracle.graal.asm.sparc.SPARCAssembler.isSimm13; +import static com.oracle.graal.asm.sparc.SPARCMacroAssembler.Mov; import com.oracle.graal.api.code.*; import com.oracle.graal.api.meta.*; @@ -54,6 +61,7 @@ @SuppressWarnings("unused") public void emitCode(TargetMethodAssembler tasm, SPARCAssembler masm) { Register dst = ValueUtil.asIntReg(result); + Register tmp = null; // ?? if (ValueUtil.isRegister(input)) { Register src = ValueUtil.asRegister(input); switch (opcode) { @@ -65,9 +73,64 @@ case LPOPCNT: new Popc(masm, src, dst); break; - case BSF: // masm.bsfq(dst, src); - case IBSR: // masm.bsrl(dst, src); - case LBSR: // masm.bsrq(dst, src); + case BSF: + // countTrailingZerosI - bsfl + // countTrailingZerosL - masm.bsfq(dst, src); + Kind tkind = input.getKind(); + if (tkind == Kind.Int) { + new Sub(masm, src, 1, dst); + new Andn(masm, dst, src, dst); + new Srl(masm, dst, SPARC.g0, dst); + new Popc(masm, dst, dst); + } else if (tkind == Kind.Long) { + new Sub(masm, src, 1, dst); + new Andn(masm, dst, src, dst); + new Popc(masm, dst, dst); + } else { + throw GraalInternalError.shouldNotReachHere("missing: " + tkind); + } + break; + case IBSR: + // countLeadingZerosI_bsr masm.bsrq(dst, src); + // masm.bsrl(dst, src); + Kind ikind = input.getKind(); + assert ikind == Kind.Int; + new Srl(masm, src, 1, tmp); + new Srl(masm, src, 0, dst); + new Or(masm, src, tmp, dst); + new Srl(masm, dst, 2, tmp); + new Or(masm, dst, tmp, dst); + new Srl(masm, dst, 4, tmp); + new Or(masm, dst, tmp, dst); + new Srl(masm, dst, 8, tmp); + new Or(masm, dst, tmp, dst); + new Srl(masm, dst, 16, tmp); + new Or(masm, dst, tmp, dst); + new Popc(masm, dst, dst); + new Mov(masm, ikind.getBitCount(), tmp); + new Sub(masm, tmp, dst, dst); + break; + case LBSR: + // countLeadingZerosL_bsr masm.bsrq(dst, src); + // masm.bsrq(dst, src); + Kind lkind = input.getKind(); + assert lkind == Kind.Int; + new Srlx(masm, src, 1, tmp); + new Or(masm, src, tmp, dst); + new Srlx(masm, dst, 2, tmp); + new Or(masm, dst, tmp, dst); + new Srlx(masm, dst, 4, tmp); + new Or(masm, dst, tmp, dst); + new Srlx(masm, dst, 8, tmp); + new Or(masm, dst, tmp, dst); + new Srlx(masm, dst, 16, tmp); + new Or(masm, dst, tmp, dst); + new Srlx(masm, dst, 32, tmp); + new Or(masm, dst, tmp, dst); + new Popc(masm, dst, dst); + new Mov(masm, lkind.getBitCount(), tmp); + new Sub(masm, tmp, dst, dst); + break; default: throw GraalInternalError.shouldNotReachHere("missing: " + opcode); @@ -87,20 +150,41 @@ SPARCAddress src = (SPARCAddress) tasm.asAddress(input); switch (opcode) { case IPOPCNT: - // masm.popcntl(dst, src); + new Ldsw(masm, src, tmp); + // clear upper word for 64 bit POPC + new Srl(masm, tmp, SPARC.g0, dst); + new Popc(masm, tmp, dst); break; case LPOPCNT: - // masm.popcntq(dst, src); + new Ldx(masm, src, tmp); + new Popc(masm, tmp, dst); break; case BSF: - // masm.bsfq(dst, src); + assert input.getKind() == Kind.Int; + new Ldsw(masm, src, tmp); + new Srl(masm, tmp, 1, tmp); + new Srl(masm, tmp, 0, dst); + new Or(masm, tmp, tmp, dst); + new Srl(masm, dst, 2, tmp); + new Or(masm, dst, tmp, dst); + new Srl(masm, dst, 4, tmp); + new Or(masm, dst, tmp, dst); + new Srl(masm, dst, 8, tmp); + new Or(masm, dst, tmp, dst); + new Srl(masm, dst, 16, tmp); + new Or(masm, dst, tmp, dst); + new Popc(masm, dst, dst); + new Mov(masm, Kind.Int.getBitCount(), tmp); + new Sub(masm, tmp, dst, dst); break; case IBSR: // masm.bsrl(dst, src); - break; + // countLeadingZerosI_bsr masm.bsrq(dst, src); + // masm.bsrl(dst, src); case LBSR: // masm.bsrq(dst, src); - break; + default: + throw GraalInternalError.shouldNotReachHere("missing: " + opcode); } } }