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[mips] Add instruction alias (dsll and dsrl).

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Summary:
The pattern dsll/dsrl $rd, $rt, $rs is found in handwritten assembly which
is just a shorthand version of dsllv/dsrlv $rd, $rt, $rs.

Reviewers: dsanders

Reviewed By: dsanders

Differential Revision: http://reviews.llvm.org/D3486

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207664 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Matheus Almeida 2014-04-30 16:00:49 +00:00
parent 3bdb9015b1
commit c3a5ef59e4
6 changed files with 14 additions and 0 deletions
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4
lib/Target/Mips/Mips64InstrInfo.td
View File

@ -440,6 +440,8 @@ def : InstAlias<"add $rs, $imm",
def : InstAlias<"addu $rs, $imm",
(ADDiu GPR32Opnd:$rs, GPR32Opnd:$rs, simm16:$imm),
0>;
def : InstAlias<"dsll $rd, $rt, $rs",
(DSLLV GPR64Opnd:$rd, GPR64Opnd:$rt, GPR32Opnd:$rs), 0>;
def : InstAlias<"dsubu $rt, $rs, $imm",
(DADDiu GPR64Opnd:$rt, GPR64Opnd:$rs,
InvertedImOperand64: $imm),0>;
@ -449,6 +451,8 @@ def : InstAlias<"dsub $rs, $imm",
def : InstAlias<"dsubu $rs, $imm",
(DADDiu GPR64Opnd:$rs, GPR64Opnd:$rs, InvertedImOperand64:$imm),
0>;
def : InstAlias<"dsrl $rd, $rt, $rs",
(DSRLV GPR64Opnd:$rd, GPR64Opnd:$rt, GPR32Opnd:$rs), 0>;
/// Move between CPU and coprocessor registers
let DecoderNamespace = "Mips64", Predicates = [HasMips64] in {

2
test/MC/Mips/mips3/valid.s
View File

@ -47,6 +47,7 @@
dmultu $a1,$a2
dsll $zero,18 # CHECK: dsll $zero, $zero, 18 # encoding: [0x00,0x00,0x04,0xb8]
dsll $zero,$s4,18 # CHECK: dsll $zero, $20, 18 # encoding: [0x00,0x14,0x04,0xb8]
dsll $zero,$s4,$t4 # CHECK: dsllv $zero, $20, $12 # encoding: [0x01,0x94,0x00,0x14]
dsll32 $zero,18 # CHECK: dsll32 $zero, $zero, 18 # encoding: [0x00,0x00,0x04,0xbc]
dsll32 $zero,$zero,18 # CHECK: dsll32 $zero, $zero, 18 # encoding: [0x00,0x00,0x04,0xbc]
dsllv $zero,$t4 # CHECK: dsllv $zero, $zero, $12 # encoding: [0x01,0x80,0x00,0x14]
@ -59,6 +60,7 @@
dsrav $gp,$s2,$s3 # CHECK: dsrav $gp, $18, $19 # encoding: [0x02,0x72,0xe0,0x17]
dsrl $s3,23 # CHECK: dsrl $19, $19, 23 # encoding: [0x00,0x13,0x9d,0xfa]
dsrl $s3,$6,23 # CHECK: dsrl $19, $6, 23 # encoding: [0x00,0x06,0x9d,0xfa]
dsrl $s3,$6,$s4 # CHECK: dsrlv $19, $6, $20 # encoding: [0x02,0x86,0x98,0x16]
dsrl32 $s3,23 # CHECK: dsrl32 $19, $19, 23 # encoding: [0x00,0x13,0x9d,0xfe]
dsrl32 $s3,$6,23 # CHECK: dsrl32 $19, $6, 23 # encoding: [0x00,0x06,0x9d,0xfe]
dsrlv $s3,$s4 # CHECK: dsrlv $19, $19, $20 # encoding: [0x02,0x93,0x98,0x16]

2
test/MC/Mips/mips4/valid.s
View File

@ -46,6 +46,7 @@
dmultu $a1,$a2
dsll $zero,18 # CHECK: dsll $zero, $zero, 18 # encoding: [0x00,0x00,0x04,0xb8]
dsll $zero,$s4,18 # CHECK: dsll $zero, $20, 18 # encoding: [0x00,0x14,0x04,0xb8]
dsll $zero,$s4,$t4 # CHECK: dsllv $zero, $20, $12 # encoding: [0x01,0x94,0x00,0x14]
dsll32 $zero,18 # CHECK: dsll32 $zero, $zero, 18 # encoding: [0x00,0x00,0x04,0xbc]
dsll32 $zero,$zero,18 # CHECK: dsll32 $zero, $zero, 18 # encoding: [0x00,0x00,0x04,0xbc]
dsllv $zero,$t4 # CHECK: dsllv $zero, $zero, $12 # encoding: [0x01,0x80,0x00,0x14]
@ -58,6 +59,7 @@
dsrav $gp,$s2,$s3 # CHECK: dsrav $gp, $18, $19 # encoding: [0x02,0x72,0xe0,0x17]
dsrl $s3,23 # CHECK: dsrl $19, $19, 23 # encoding: [0x00,0x13,0x9d,0xfa]
dsrl $s3,$6,23 # CHECK: dsrl $19, $6, 23 # encoding: [0x00,0x06,0x9d,0xfa]
dsrl $s3,$6,$s4 # CHECK: dsrlv $19, $6, $20 # encoding: [0x02,0x86,0x98,0x16]
dsrl32 $s3,23 # CHECK: dsrl32 $19, $19, 23 # encoding: [0x00,0x13,0x9d,0xfe]
dsrl32 $s3,$6,23 # CHECK: dsrl32 $19, $6, 23 # encoding: [0x00,0x06,0x9d,0xfe]
dsrlv $s3,$s4 # CHECK: dsrlv $19, $19, $20 # encoding: [0x02,0x93,0x98,0x16]

2
test/MC/Mips/mips5/valid.s
View File

@ -47,6 +47,7 @@
dmultu $a1,$a2
dsll $zero,18 # CHECK: dsll $zero, $zero, 18 # encoding: [0x00,0x00,0x04,0xb8]
dsll $zero,$s4,18 # CHECK: dsll $zero, $20, 18 # encoding: [0x00,0x14,0x04,0xb8]
dsll $zero,$s4,$t4 # CHECK: dsllv $zero, $20, $12 # encoding: [0x01,0x94,0x00,0x14]
dsll32 $zero,18 # CHECK: dsll32 $zero, $zero, 18 # encoding: [0x00,0x00,0x04,0xbc]
dsll32 $zero,$zero,18 # CHECK: dsll32 $zero, $zero, 18 # encoding: [0x00,0x00,0x04,0xbc]
dsllv $zero,$t4 # CHECK: dsllv $zero, $zero, $12 # encoding: [0x01,0x80,0x00,0x14]
@ -59,6 +60,7 @@
dsrav $gp,$s2,$s3 # CHECK: dsrav $gp, $18, $19 # encoding: [0x02,0x72,0xe0,0x17]
dsrl $s3,23 # CHECK: dsrl $19, $19, 23 # encoding: [0x00,0x13,0x9d,0xfa]
dsrl $s3,$6,23 # CHECK: dsrl $19, $6, 23 # encoding: [0x00,0x06,0x9d,0xfa]
dsrl $s3,$6,$s4 # CHECK: dsrlv $19, $6, $20 # encoding: [0x02,0x86,0x98,0x16]
dsrl32 $s3,23 # CHECK: dsrl32 $19, $19, 23 # encoding: [0x00,0x13,0x9d,0xfe]
dsrl32 $s3,$6,23 # CHECK: dsrl32 $19, $6, 23 # encoding: [0x00,0x06,0x9d,0xfe]
dsrlv $s3,$s4 # CHECK: dsrlv $19, $19, $20 # encoding: [0x02,0x93,0x98,0x16]

2
test/MC/Mips/mips64/valid.s
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@ -51,6 +51,7 @@
dmultu $a1,$a2
dsll $zero,18 # CHECK: dsll $zero, $zero, 18 # encoding: [0x00,0x00,0x04,0xb8]
dsll $zero,$s4,18 # CHECK: dsll $zero, $20, 18 # encoding: [0x00,0x14,0x04,0xb8]
dsll $zero,$s4,$t4 # CHECK: dsllv $zero, $20, $12 # encoding: [0x01,0x94,0x00,0x14]
dsll32 $zero,18 # CHECK: dsll32 $zero, $zero, 18 # encoding: [0x00,0x00,0x04,0xbc]
dsll32 $zero,$zero,18 # CHECK: dsll32 $zero, $zero, 18 # encoding: [0x00,0x00,0x04,0xbc]
dsllv $zero,$t4 # CHECK: dsllv $zero, $zero, $12 # encoding: [0x01,0x80,0x00,0x14]
@ -63,6 +64,7 @@
dsrav $gp,$s2,$s3 # CHECK: dsrav $gp, $18, $19 # encoding: [0x02,0x72,0xe0,0x17]
dsrl $s3,23 # CHECK: dsrl $19, $19, 23 # encoding: [0x00,0x13,0x9d,0xfa]
dsrl $s3,$6,23 # CHECK: dsrl $19, $6, 23 # encoding: [0x00,0x06,0x9d,0xfa]
dsrl $s3,$6,$s4 # CHECK: dsrlv $19, $6, $20 # encoding: [0x02,0x86,0x98,0x16]
dsrl32 $s3,23 # CHECK: dsrl32 $19, $19, 23 # encoding: [0x00,0x13,0x9d,0xfe]
dsrl32 $s3,$6,23 # CHECK: dsrl32 $19, $6, 23 # encoding: [0x00,0x06,0x9d,0xfe]
dsrlv $s3,$s4 # CHECK: dsrlv $19, $19, $20 # encoding: [0x02,0x93,0x98,0x16]

2
test/MC/Mips/mips64r2/valid.s
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@ -60,6 +60,7 @@
dshd $v0,$sp
dsll $zero,18 # CHECK: dsll $zero, $zero, 18 # encoding: [0x00,0x00,0x04,0xb8]
dsll $zero,$s4,18 # CHECK: dsll $zero, $20, 18 # encoding: [0x00,0x14,0x04,0xb8]
dsll $zero,$s4,$t4 # CHECK: dsllv $zero, $20, $12 # encoding: [0x01,0x94,0x00,0x14]
dsll32 $zero,18 # CHECK: dsll32 $zero, $zero, 18 # encoding: [0x00,0x00,0x04,0xbc]
dsll32 $zero,$zero,18 # CHECK: dsll32 $zero, $zero, 18 # encoding: [0x00,0x00,0x04,0xbc]
dsllv $zero,$t4 # CHECK: dsllv $zero, $zero, $12 # encoding: [0x01,0x80,0x00,0x14]
@ -72,6 +73,7 @@
dsrav $gp,$s2,$s3 # CHECK: dsrav $gp, $18, $19 # encoding: [0x02,0x72,0xe0,0x17]
dsrl $s3,23 # CHECK: dsrl $19, $19, 23 # encoding: [0x00,0x13,0x9d,0xfa]
dsrl $s3,$6,23 # CHECK: dsrl $19, $6, 23 # encoding: [0x00,0x06,0x9d,0xfa]
dsrl $s3,$6,$s4 # CHECK: dsrlv $19, $6, $20 # encoding: [0x02,0x86,0x98,0x16]
dsrl32 $s3,23 # CHECK: dsrl32 $19, $19, 23 # encoding: [0x00,0x13,0x9d,0xfe]
dsrl32 $s3,$6,23 # CHECK: dsrl32 $19, $6, 23 # encoding: [0x00,0x06,0x9d,0xfe]
dsrlv $s3,$s4 # CHECK: dsrlv $19, $19, $20 # encoding: [0x02,0x93,0x98,0x16]