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Thumb2 parsing and encoding for ADD (register). 

llvm-svn: 139017
This commit is contained in:
Jim Grosbach 2011-09-02 18:14:46 +00:00
parent 5c04c62765
commit 2761155203
2 changed files with 30 additions and 9 deletions
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23
llvm/lib/Target/ARM/ARMInstrThumb2.td
View File

@ -624,9 +624,9 @@ multiclass T2I_bin_ii12rs<bits<3> op23_21, string opc, PatFrag opnode,
// in particular for taking the address of a local.
let isReMaterializable = 1 in {
def ri : T2sTwoRegImm<
(outs rGPR:$Rd), (ins GPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
(outs rGPR:$Rd), (ins GPRnopc:$Rn, t2_so_imm:$imm), IIC_iALUi,
opc, ".w\t$Rd, $Rn, $imm",
[(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_imm:$imm))]> {
[(set rGPR:$Rd, (opnode GPRnopc:$Rn, t2_so_imm:$imm))]> {
let Inst{31-27} = 0b11110;
let Inst{25} = 0;
let Inst{24} = 1;
@ -654,9 +654,9 @@ multiclass T2I_bin_ii12rs<bits<3> op23_21, string opc, PatFrag opnode,
let Inst{7-0} = imm{7-0};
}
// register
def rr : T2sThreeReg<(outs rGPR:$Rd), (ins GPR:$Rn, rGPR:$Rm), IIC_iALUr,
def rr : T2sThreeReg<(outs rGPR:$Rd), (ins GPRnopc:$Rn, rGPR:$Rm), IIC_iALUr,
opc, ".w\t$Rd, $Rn, $Rm",
[(set rGPR:$Rd, (opnode GPR:$Rn, rGPR:$Rm))]> {
[(set rGPR:$Rd, (opnode GPRnopc:$Rn, rGPR:$Rm))]> {
let isCommutable = Commutable;
let Inst{31-27} = 0b11101;
let Inst{26-25} = 0b01;
@ -668,9 +668,9 @@ multiclass T2I_bin_ii12rs<bits<3> op23_21, string opc, PatFrag opnode,
}
// shifted register
def rs : T2sTwoRegShiftedReg<
(outs rGPR:$Rd), (ins GPR:$Rn, t2_so_reg:$ShiftedRm),
(outs rGPR:$Rd), (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm),
IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
[(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_reg:$ShiftedRm))]> {
[(set rGPR:$Rd, (opnode GPRnopc:$Rn, t2_so_reg:$ShiftedRm))]> {
let Inst{31-27} = 0b11101;
let Inst{26-25} = 0b01;
let Inst{24} = 1;
@ -3512,8 +3512,13 @@ def : t2InstAlias<"sbc${s}${p} $Rd, $Rn, $ShiftedRm",
(t2SBCrs rGPR:$Rd, rGPR:$Rn, t2_so_reg:$ShiftedRm,
pred:$p, cc_out:$s)>;
// Aliases for ADD immediate without the ".w" optional width specifier.
// Aliases for ADD without the ".w" optional width specifier.
def : t2InstAlias<"add${s}${p} $Rd, $Rn, $imm",
(t2ADDri rGPR:$Rd, GPR:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
(t2ADDri rGPR:$Rd, GPRnopc:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
def : t2InstAlias<"add${p} $Rd, $Rn, $imm",
(t2ADDri12 rGPR:$Rd, GPR:$Rn, imm0_4095:$imm, pred:$p)>;
(t2ADDri12 rGPR:$Rd, GPR:$Rn, imm0_4095:$imm, pred:$p)>;
def : t2InstAlias<"add${s}${p} $Rd, $Rn, $Rm",
(t2ADDrr rGPR:$Rd, GPRnopc:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
def : t2InstAlias<"add${s}${p} $Rd, $Rn, $ShiftedRm",
(t2ADDrs rGPR:$Rd, GPRnopc:$Rn, t2_so_reg:$ShiftedRm,
pred:$p, cc_out:$s)>;

16
llvm/test/MC/ARM/basic-thumb2-instructions.s
View File

@ -87,6 +87,22 @@ _func:
@ CHECK: adds.w r1, r2, #496 @ encoding: [0x12,0xf5,0xf8,0x71]
@------------------------------------------------------------------------------
@ ADD (register)
@------------------------------------------------------------------------------
add r1, r2, r8
add r5, r9, r2, asr #32
adds r7, r3, r1, lsl #31
adds.w r0, r3, r6, lsr #25
add.w r4, r8, r1, ror #12
@ CHECK: add.w r1, r2, r8 @ encoding: [0x02,0xeb,0x08,0x01]
@ CHECK: add.w r5, r9, r2, asr #32 @ encoding: [0x09,0xeb,0x22,0x05]
@ CHECK: adds.w r7, r3, r1, lsl #31 @ encoding: [0x13,0xeb,0xc1,0x77]
@ CHECK: adds.w r0, r3, r6, lsr #25 @ encoding: [0x13,0xeb,0x56,0x60]
@ CHECK: add.w r4, r8, r1, ror #12 @ encoding: [0x08,0xeb,0x31,0x34]
@------------------------------------------------------------------------------
@ FIXME: ADR
@------------------------------------------------------------------------------