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[PowerPC] Add asm parser/disassembler support for hrfid,nap,slbmfev 

These few book-III instructions are used by the Linux kernel.

Partially fixes PR24796.

llvm-svn: 280560
This commit is contained in:
Hal Finkel 2016-09-02 23:42:01 +00:00
parent 277736eee6
commit 28842b96f3
5 changed files with 47 additions and 0 deletions
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19
llvm/lib/Target/PowerPC/PPCInstrFormats.td
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@ -1193,6 +1193,25 @@ class XLForm_1<bits<6> opcode, bits<10> xo, dag OOL, dag IOL, string asmstr,
let Inst{31} = 0;
}
class XLForm_1_np<bits<6> opcode, bits<10> xo, dag OOL, dag IOL, string asmstr,
InstrItinClass itin, list<dag> pattern>
: XLForm_1<opcode, xo, OOL, IOL, asmstr, itin, pattern> {
let CRD = 0;
let CRA = 0;
let CRB = 0;
}
class XLForm_1_gen<bits<6> opcode, bits<10> xo, dag OOL, dag IOL, string asmstr,
InstrItinClass itin, list<dag> pattern>
: XLForm_1<opcode, xo, OOL, IOL, asmstr, itin, pattern> {
bits<5> RT;
bits<5> RB;
let CRD = RT;
let CRA = 0;
let CRB = RB;
}
class XLForm_1_ext<bits<6> opcode, bits<10> xo, dag OOL, dag IOL, string asmstr,
InstrItinClass itin, list<dag> pattern>
: I<opcode, OOL, IOL, asmstr, itin> {

6
llvm/lib/Target/PowerPC/PPCInstrInfo.td
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@ -3697,6 +3697,9 @@ def SLBMTE : XForm_26<31, 402, (outs), (ins gprc:$RS, gprc:$RB),
def SLBMFEE : XForm_26<31, 915, (outs gprc:$RT), (ins gprc:$RB),
"slbmfee $RT, $RB", IIC_SprSLBMFEE, []>;
def SLBMFEV : XLForm_1_gen<31, 851, (outs gprc:$RT), (ins gprc:$RB),
"slbmfev $RT, $RB", IIC_SprSLBMFEV, []>;
def SLBIA : XForm_0<31, 498, (outs), (ins), "slbia", IIC_SprSLBIA, []>;
def TLBIA : XForm_0<31, 370, (outs), (ins),
@ -3759,6 +3762,9 @@ def MFDCR : XFXForm_1<31, 323, (outs gprc:$RT), (ins i32imm:$SPR),
def MTDCR : XFXForm_1<31, 451, (outs), (ins gprc:$RT, i32imm:$SPR),
"mtdcr $SPR, $RT", IIC_SprMTSPR>, Requires<[IsPPC4xx]>;
def HRFID : XLForm_1_np<19, 274, (outs), (ins), "hrfid", IIC_BrB, []>;
def NAP : XLForm_1_np<19, 434, (outs), (ins), "nap", IIC_BrB, []>;
def ATTN : XForm_attn<0, 256, (outs), (ins), "attn", IIC_BrB>;
def LBZCIX : XForm_base_r3xo<31, 853, (outs gprc:$RST), (ins gprc:$A, gprc:$B),

1
llvm/lib/Target/PowerPC/PPCSchedule.td
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@ -109,6 +109,7 @@ def IIC_SprSLBIE : InstrItinClass;
def IIC_SprSLBIEG : InstrItinClass;
def IIC_SprSLBMTE : InstrItinClass;
def IIC_SprSLBMFEE : InstrItinClass;
def IIC_SprSLBMFEV : InstrItinClass;
def IIC_SprSLBIA : InstrItinClass;
def IIC_SprSLBSYNC : InstrItinClass;
def IIC_SprTLBIA : InstrItinClass;

9
llvm/test/MC/Disassembler/PowerPC/ppc64-encoding-bookIII.txt
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@ -1,5 +1,11 @@
# RUN: llvm-mc --disassemble %s -triple powerpc64-unknown-unknown -mcpu=pwr7 | FileCheck %s
# CHECK: hrfid
0x4c 0x00 0x02 0x24
# CHECK: nap
0x4c 0x00 0x03 0x64
# CHECK: mtmsr 4
0x7c 0x80 0x01 0x24
@ -90,6 +96,9 @@
# CHECK: slbmfee 4, 5
0x7c 0x80 0x2f 0x26
0x7c 0x40 0x1e 0xa6
# CHECK: slbmfev 2, 3
# CHECK: slbia
0x7c 0x00 0x03 0xe4

12
llvm/test/MC/PowerPC/ppc64-encoding-bookIII.s
View File

@ -1,6 +1,14 @@
# RUN: llvm-mc -triple powerpc64-unknown-unknown --show-encoding %s | FileCheck -check-prefix=CHECK-BE %s
# RUN: llvm-mc -triple powerpc64le-unknown-unknown --show-encoding %s | FileCheck -check-prefix=CHECK-LE %s
# CHECK-BE: hrfid # encoding: [0x4c,0x00,0x02,0x24]
# CHECK-LE: hrfid # encoding: [0x24,0x02,0x00,0x4c]
hrfid
# CHECK-BE: nap # encoding: [0x4c,0x00,0x03,0x64]
# CHECK-LE: nap # encoding: [0x64,0x03,0x00,0x4c]
nap
# CHECK-BE: mtmsr 4 # encoding: [0x7c,0x80,0x01,0x24]
# CHECK-LE: mtmsr 4 # encoding: [0x24,0x01,0x80,0x7c]
mtmsr %r4
@ -134,6 +142,10 @@
# CHECK-LE: slbmfee 4, 5 # encoding: [0x26,0x2f,0x80,0x7c]
slbmfee %r4, %r5
# CHECK-BE: slbmfev 2, 3 # encoding: [0x7c,0x40,0x1e,0xa6]
# CHECK-LE: slbmfev 2, 3 # encoding: [0xa6,0x1e,0x40,0x7c]
slbmfev %r2, %r3
# CHECK-BE: slbia # encoding: [0x7c,0x00,0x03,0xe4]
# CHECK-LE: slbia # encoding: [0xe4,0x03,0x00,0x7c]
slbia