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[Hexagon] Adding J class call instructions.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224150 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Colin LeMahieu 2014-12-12 21:12:27 +00:00
parent 034ae88fbd
commit 365cfbc3f0
3 changed files with 56 additions and 9 deletions
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55
lib/Target/Hexagon/HexagonInstrInfoV3.td
View File

@ -21,13 +21,52 @@ def callv3nr : SDNode<"HexagonISD::CALLv3nr", SDT_SPCall,
// J +
//===----------------------------------------------------------------------===//
// Call subroutine.
let isCall = 1, hasSideEffects = 0,
Defs = [D0, D1, D2, D3, D4, D5, D6, D7, R28, R31,
P0, P1, P2, P3, LC0, LC1, SA0, SA1] in {
def CALLv3 : JInst<(outs), (ins calltarget:$dst),
"call $dst", []>, Requires<[HasV3T]>;
let isCall = 1, hasSideEffects = 1, validSubTargets = HasV3SubT,
Defs = VolatileV3.Regs, isPredicable = 1,
isExtended = 0, isExtendable = 1, opExtendable = 0,
isExtentSigned = 1, opExtentBits = 24, opExtentAlign = 2 in
class T_Call<string ExtStr>
: JInst<(outs), (ins calltarget:$dst),
"call " # ExtStr # "$dst", [], "", J_tc_2early_SLOT23> {
let BaseOpcode = "call";
bits<24> dst;
let IClass = 0b0101;
let Inst{27-25} = 0b101;
let Inst{24-16,13-1} = dst{23-2};
let Inst{0} = 0b0;
}
let isCall = 1, hasSideEffects = 1, validSubTargets = HasV3SubT,
Defs = VolatileV3.Regs, isPredicated = 1,
isExtended = 0, isExtendable = 1, opExtendable = 1,
isExtentSigned = 1, opExtentBits = 17, opExtentAlign = 2 in
class T_CallPred<bit IfTrue, string ExtStr>
: JInst<(outs), (ins PredRegs:$Pu, calltarget:$dst),
CondStr<"$Pu", IfTrue, 0>.S # "call " # ExtStr # "$dst",
[], "", J_tc_2early_SLOT23> {
let BaseOpcode = "call";
let isPredicatedFalse = !if(IfTrue,0,1);
bits<2> Pu;
bits<17> dst;
let IClass = 0b0101;
let Inst{27-24} = 0b1101;
let Inst{23-22,20-16,13,7-1} = dst{16-2};
let Inst{21} = !if(IfTrue,0,1);
let Inst{11} = 0b0;
let Inst{9-8} = Pu;
}
multiclass T_Calls<string ExtStr> {
def NAME : T_Call<ExtStr>;
def t : T_CallPred<1, ExtStr>;
def f : T_CallPred<0, ExtStr>;
}
let isCodeGenOnly = 0 in
defm J2_call: T_Calls<"">, PredRel;
//===----------------------------------------------------------------------===//
// J -
//===----------------------------------------------------------------------===//
@ -100,8 +139,8 @@ Requires<[HasV3T]>;
// Map call instruction
def : Pat<(call (i32 IntRegs:$dst)),
(CALLRv3 (i32 IntRegs:$dst))>, Requires<[HasV3T]>;
(J2_call (i32 IntRegs:$dst))>, Requires<[HasV3T]>;
def : Pat<(call tglobaladdr:$dst),
(CALLv3 tglobaladdr:$dst)>, Requires<[HasV3T]>;
(J2_call tglobaladdr:$dst)>, Requires<[HasV3T]>;
def : Pat<(call texternalsym:$dst),
(CALLv3 texternalsym:$dst)>, Requires<[HasV3T]>;
(J2_call texternalsym:$dst)>, Requires<[HasV3T]>;

2
lib/Target/Hexagon/HexagonNewValueJump.cpp
View File

@ -176,7 +176,7 @@ static bool commonChecksToProhibitNewValueJump(bool afterRA,
return false;
// if call in path, bail out.
if (MII->getOpcode() == Hexagon::CALLv3)
if (MII->getOpcode() == Hexagon::J2_call)
return false;
// if NVJ is running prior to RA, do the following checks.

8
test/MC/Disassembler/Hexagon/j.txt Normal file
View File

@ -0,0 +1,8 @@
# RUN: llvm-mc -triple hexagon -disassemble < %s | FileCheck %s
0x22 0xc0 0x00 0x5a
# CHECK: call
0x22 0xc3 0x00 0x5d
# CHECK: if (p3) call
0x22 0xc3 0x20 0x5d
# CHECK: if (!p3) call