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[Hexagon] Adding sxth instruction.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222577 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Colin LeMahieu 2014-11-21 21:54:59 +00:00
parent 326816c88f
commit 88109da602
4 changed files with 20 additions and 8 deletions
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4
lib/Target/Hexagon/HexagonISelDAGToDAG.cpp
View File

@ -934,7 +934,7 @@ SDNode *HexagonDAGToDAGISel::SelectSelect(SDNode *N) {
if (N000 == N2 &&
N0.getNode()->getValueType(N0.getResNo()) == MVT::i1 &&
N00.getNode()->getValueType(N00.getResNo()) == MVT::i32) {
SDNode *SextNode = CurDAG->getMachineNode(Hexagon::SXTH, dl,
SDNode *SextNode = CurDAG->getMachineNode(Hexagon::A2_sxth, dl,
MVT::i32, N000);
SDNode *Result = CurDAG->getMachineNode(Hexagon::MAXw_rr, dl,
MVT::i32,
@ -958,7 +958,7 @@ SDNode *HexagonDAGToDAGISel::SelectSelect(SDNode *N) {
if (N000 == N2 &&
N0.getNode()->getValueType(N0.getResNo()) == MVT::i1 &&
N00.getNode()->getValueType(N00.getResNo()) == MVT::i32) {
SDNode *SextNode = CurDAG->getMachineNode(Hexagon::SXTH, dl,
SDNode *SextNode = CurDAG->getMachineNode(Hexagon::A2_sxth, dl,
MVT::i32, N000);
SDNode *Result = CurDAG->getMachineNode(Hexagon::MINw_rr, dl,
MVT::i32,

8
lib/Target/Hexagon/HexagonInstrInfo.cpp
View File

@ -716,7 +716,7 @@ bool HexagonInstrInfo::isPredicable(MachineInstr *MI) const {
case Hexagon::ASLH:
case Hexagon::ASRH:
case Hexagon::A2_sxtb:
case Hexagon::SXTH:
case Hexagon::A2_sxth:
case Hexagon::ZXTB:
case Hexagon::ZXTH:
return Subtarget.hasV4TOps();
@ -1315,6 +1315,10 @@ bool HexagonInstrInfo::isConditionalALU32 (const MachineInstr* MI) const {
case Hexagon::A2_pxorfnew:
case Hexagon::A2_pxort:
case Hexagon::A2_pxortnew:
case Hexagon::A4_psxthf:
case Hexagon::A4_psxthfnew:
case Hexagon::A4_psxtht:
case Hexagon::A4_psxthtnew:
case Hexagon::A4_psxtbf:
case Hexagon::A4_psxtbfnew:
case Hexagon::A4_psxtbt:
@ -1328,8 +1332,6 @@ bool HexagonInstrInfo::isConditionalALU32 (const MachineInstr* MI) const {
case Hexagon::ASLH_cNotPt_V4:
case Hexagon::ASRH_cPt_V4:
case Hexagon::ASRH_cNotPt_V4:
case Hexagon::SXTH_cPt_V4:
case Hexagon::SXTH_cNotPt_V4:
case Hexagon::ZXTB_cPt_V4:
case Hexagon::ZXTB_cNotPt_V4:
case Hexagon::ZXTH_cPt_V4:

6
lib/Target/Hexagon/HexagonInstrInfo.td
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@ -266,6 +266,7 @@ multiclass ALU32_2op_base<string mnemonic, bits<3> minOp> {
}
defm sxtb : ALU32_2op_base<"sxtb", 0b101>, PredNewRel;
defm sxth : ALU32_2op_base<"sxth", 0b111>, PredNewRel;
// Combines the two integer registers SRC1 and SRC2 into a double register.
let isPredicable = 1 in
@ -597,7 +598,6 @@ multiclass ALU32_2op_base2<string mnemonic> {
defm ASLH : ALU32_2op_base2<"aslh">, PredNewRel;
defm ASRH : ALU32_2op_base2<"asrh">, PredNewRel;
defm SXTH : ALU32_2op_base2<"sxth">, PredNewRel;
defm ZXTB : ALU32_2op_base2<"zxtb">, PredNewRel;
defm ZXTH : ALU32_2op_base2<"zxth">, PredNewRel;
@ -611,7 +611,7 @@ def : Pat <(sext_inreg (i32 IntRegs:$src1), i8),
(A2_sxtb IntRegs:$src1)>;
def : Pat <(sext_inreg (i32 IntRegs:$src1), i16),
(SXTH IntRegs:$src1)>;
(A2_sxth IntRegs:$src1)>;
//===----------------------------------------------------------------------===//
// ALU32/PERM -
@ -2350,7 +2350,7 @@ def : Pat <(i64 (sext_inreg (i64 DoubleRegs:$src1), i32)),
// Map from Rdd = sign_extend_inreg(Rss, i16) -> Rdd = SXTW(SXTH(Rss.lo)).
def : Pat <(i64 (sext_inreg (i64 DoubleRegs:$src1), i16)),
(i64 (SXTW (i32 (SXTH (i32 (EXTRACT_SUBREG (i64 DoubleRegs:$src1),
(i64 (SXTW (i32 (A2_sxth (i32 (EXTRACT_SUBREG (i64 DoubleRegs:$src1),
subreg_loreg))))))>;
// Map from Rdd = sign_extend_inreg(Rss, i8) -> Rdd = SXTW(SXTB(Rss.lo)).

10
test/MC/Hexagon/inst_sxth.ll Normal file
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@ -0,0 +1,10 @@
;; RUN: llc -mtriple=hexagon-unknown-elf -filetype=obj %s -o - \
;; RUN: | llvm-objdump -s - | FileCheck %s
define i32 @foo (i16 %a)
{
%1 = sext i16 %a to i32
ret i32 %1
}
; CHECK: 0000 0040e070 00c09f52