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Fix operand encoding for Thumb2 extended precision multiplies. rdar://8745555 

llvm-svn: 121297
This commit is contained in:
Jim Grosbach 2010-12-08 22:29:28 +00:00
parent 8d846daa81
commit c3b0b10708
1 changed files with 24 additions and 10 deletions
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34
llvm/lib/Target/ARM/ARMInstrThumb2.td
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@ -398,6 +398,20 @@ class T2FourReg<dag oops, dag iops, InstrItinClass itin,
let Inst{3-0} = Rm;
}
class T2MulLong<dag oops, dag iops, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
: T2I<oops, iops, itin, opc, asm, pattern> {
bits<4> RdLo;
bits<4> RdHi;
bits<4> Rn;
bits<4> Rm;
let Inst{19-16} = Rn;
let Inst{15-12} = RdLo;
let Inst{11-8} = RdHi;
let Inst{3-0} = Rm;
}
/// T2I_un_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
/// unary operation that produces a value. These are predicable and can be
@ -2192,7 +2206,7 @@ def t2MLS: T2FourReg<
// Extra precision multiplies with low / high results
let neverHasSideEffects = 1 in {
let isCommutable = 1 in {
def t2SMULL : T2FourReg<
def t2SMULL : T2MulLong<
(outs rGPR:$Rd, rGPR:$Ra),
(ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
"smull", "\t$Rd, $Ra, $Rn, $Rm", []> {
@ -2202,10 +2216,10 @@ def t2SMULL : T2FourReg<
let Inst{7-4} = 0b0000;
}
def t2UMULL : T2FourReg<
(outs rGPR:$Rd, rGPR:$Ra),
def t2UMULL : T2MulLong<
(outs rGPR:$RdLo, rGPR:$RdHi),
(ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
"umull", "\t$Rd, $Ra, $Rn, $Rm", []> {
"umull", "\t$RdLo, $RdHi, $Rn, $Rm", []> {
let Inst{31-27} = 0b11111;
let Inst{26-23} = 0b0111;
let Inst{22-20} = 0b010;
@ -2214,27 +2228,27 @@ def t2UMULL : T2FourReg<
} // isCommutable
// Multiply + accumulate
def t2SMLAL : T2FourReg<(outs rGPR:$Ra, rGPR:$Rd),
def t2SMLAL : T2MulLong<(outs rGPR:$RdLo, rGPR:$RdHi),
(ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
"smlal", "\t$Ra, $Rd, $Rn, $Rm", []>{
"smlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>{
let Inst{31-27} = 0b11111;
let Inst{26-23} = 0b0111;
let Inst{22-20} = 0b100;
let Inst{7-4} = 0b0000;
}
def t2UMLAL : T2FourReg<(outs rGPR:$Ra, rGPR:$Rd),
def t2UMLAL : T2MulLong<(outs rGPR:$RdLo, rGPR:$RdHi),
(ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
"umlal", "\t$Ra, $Rd, $Rn, $Rm", []>{
"umlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>{
let Inst{31-27} = 0b11111;
let Inst{26-23} = 0b0111;
let Inst{22-20} = 0b110;
let Inst{7-4} = 0b0000;
}
def t2UMAAL : T2FourReg<(outs rGPR:$Ra, rGPR:$Rd),
def t2UMAAL : T2MulLong<(outs rGPR:$RdLo, rGPR:$RdHi),
(ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
"umaal", "\t$Ra, $Rd, $Rn, $Rm", []>{
"umaal", "\t$RdLo, $RdHi, $Rn, $Rm", []>{
let Inst{31-27} = 0b11111;
let Inst{26-23} = 0b0111;
let Inst{22-20} = 0b110;