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[PowerPC] Add variants of "sync" instruction

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This adds support for the "sync $L" instruction with operand,
and provides aliases for "lwsync" and "ptesync".



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185344 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Ulrich Weigand 2013-07-01 16:37:52 +00:00
parent d59fc0af0a
commit af679a2292
3 changed files with 19 additions and 9 deletions
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5
lib/Target/PowerPC/PPCInstrFormats.td
View File

@ -473,8 +473,11 @@ class XForm_24<bits<6> opcode, bits<10> xo, dag OOL, dag IOL, string asmstr,
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> {
bits<2> L;
let Pattern = pattern;
let Inst{6-10} = 0;
let Inst{6-8} = 0;
let Inst{9-10} = L;
let Inst{11-15} = 0;
let Inst{16-20} = 0;
let Inst{21-30} = xo;

12
lib/Target/PowerPC/PPCInstrInfo.td
View File

@ -1508,9 +1508,9 @@ def : Pat<(pre_store f32:$rS, iPTR:$ptrreg, iPTR:$ptroff),
def : Pat<(pre_store f64:$rS, iPTR:$ptrreg, iPTR:$ptroff),
(STFDUX $rS, $ptrreg, $ptroff)>;
def SYNC : XForm_24_sync<31, 598, (outs), (ins),
"sync", LdStSync,
[(int_ppc_sync)]>;
def SYNC : XForm_24_sync<31, 598, (outs), (ins i32imm:$L),
"sync $L", LdStSync, []>;
def : Pat<(int_ppc_sync), (SYNC 0)>;
//===----------------------------------------------------------------------===//
// PPC32 Arithmetic Instructions.
@ -2231,7 +2231,7 @@ def : Pat<(f64 (extloadf32 xaddr:$src)),
def : Pat<(f64 (fextend f32:$src)),
(COPY_TO_REGCLASS $src, F8RC)>;
def : Pat<(atomic_fence (imm), (imm)), (SYNC)>;
def : Pat<(atomic_fence (imm), (imm)), (SYNC 0)>;
// Additional FNMSUB patterns: -a*c + b == -(a*c - b)
def : Pat<(fma (fneg f64:$A), f64:$C, f64:$B),
@ -2279,6 +2279,10 @@ class PPCAsmPseudo<string asm, dag iops>
def : InstAlias<"sc", (SC 0)>;
def : InstAlias<"sync", (SYNC 0)>;
def : InstAlias<"lwsync", (SYNC 1)>;
def : InstAlias<"ptesync", (SYNC 2)>;
def : InstAlias<"xnop", (XORI R0, R0, 0)>;
def : InstAlias<"mr $rA, $rB", (OR8 g8rc:$rA, g8rc:$rB, g8rc:$rB)>;

11
test/MC/PowerPC/ppc64-encoding-bookII.s
View File

@ -30,7 +30,8 @@
# CHECK: stdcx. 2, 3, 4 # encoding: [0x7c,0x43,0x21,0xad]
stdcx. 2, 3, 4
# FIXME: sync 2
# CHECK: sync 2 # encoding: [0x7c,0x40,0x04,0xac]
sync 2
# FIXME: eieio
# FIXME: wait 2
@ -47,10 +48,12 @@
# CHECK: ldarx 2, 3, 4 # encoding: [0x7c,0x43,0x20,0xa8]
ldarx 2, 3, 4
# CHECK: sync # encoding: [0x7c,0x00,0x04,0xac]
# CHECK: sync 0 # encoding: [0x7c,0x00,0x04,0xac]
sync
# FIXME: lwsync
# FIXME: ptesync
# CHECK: sync 1 # encoding: [0x7c,0x20,0x04,0xac]
lwsync
# CHECK: sync 2 # encoding: [0x7c,0x40,0x04,0xac]
ptesync
# FIXME: wait
# FIXME: waitrsv