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[mips] Fix the predicates of some aliases 

Previously, some aliases were marked as not being available for microMIPS32R6,
but this was overridden at the top level.

Reviewers: atanasyan, abeserminji, smaksimovic

Differential Revision: https://reviews.llvm.org/D48321

llvm-svn: 335053
This commit is contained in:
Simon Dardis 2018-06-19 15:25:01 +00:00
parent 60f028ff03
commit 9e80c340f7
3 changed files with 8 additions and 3 deletions
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3
llvm/lib/Target/Mips/MicroMips32r6InstrInfo.td
View File

@ -1677,6 +1677,9 @@ def : MipsInstAlias<"xor $rs, $imm",
def : MipsInstAlias<"not $rt, $rs",
(NOR_MMR6 GPR32Opnd:$rt, GPR32Opnd:$rs, ZERO), 0>,
ISA_MICROMIPS32R6;
def : MipsInstAlias<"not $rt",
(NOR_MMR6 GPR32Opnd:$rt, GPR32Opnd:$rt, ZERO), 0>,
ISA_MICROMIPS32R6;
def : MipsInstAlias<"lapc $rd, $imm",
(ADDIUPC_MMR6 GPR32Opnd:$rd, simm19_lsl2:$imm)>,
ISA_MICROMIPS32R6;

6
llvm/lib/Target/Mips/MicroMipsInstrInfo.td
View File

@ -1287,7 +1287,7 @@ class UncondBranchMMPseudo<string opstr> :
def B_MM_Pseudo : UncondBranchMMPseudo<"b">, ISA_MICROMIPS;
let Predicates = [InMicroMips] in {
let EncodingPredicates = [InMicroMips] in {
def SDIV_MM_Pseudo : MultDivPseudo<SDIV_MM, ACC64, GPR32Opnd, MipsDivRem,
II_DIV, 0, 1, 1>, ISA_MIPS1_NOT_32R6_64R6;
def UDIV_MM_Pseudo : MultDivPseudo<UDIV_MM, ACC64, GPR32Opnd, MipsDivRemU,
@ -1374,10 +1374,10 @@ let Predicates = [InMicroMips] in {
def : MipsInstAlias<"not $rt, $rs",
(NOR_MM GPR32Opnd:$rt, GPR32Opnd:$rs, ZERO), 0>,
ISA_MICROMIPS;
ISA_MICROMIPS32_NOT_MIPS32R6;
def : MipsInstAlias<"not $rt",
(NOR_MM GPR32Opnd:$rt, GPR32Opnd:$rt, ZERO), 0>,
ISA_MICROMIPS;
ISA_MICROMIPS32_NOT_MIPS32R6;
def : MipsInstAlias<"bnez $rs,$offset",
(BNE_MM GPR32Opnd:$rs, ZERO, brtarget:$offset), 0>,
ISA_MICROMIPS;

2
llvm/test/MC/Mips/micromips32r6/valid.s
View File

@ -390,7 +390,9 @@
and $3, 5 # CHECK: andi $3, $3, 5 # encoding: [0xd0,0x63,0x00,0x05]
and $3, $4, 5 # CHECK: andi $3, $4, 5 # encoding: [0xd0,0x64,0x00,0x05]
not $3, $4 # CHECK: not $3, $4 # encoding: [0x00,0x04,0x1a,0xd0]
# CHECK-NEXT: # <MCInst #{{.*}} NOR_MMR6
not $3 # CHECK: not $3, $3 # encoding: [0x00,0x03,0x1a,0xd0]
# CHECK-NEXT: # <MCInst #{{.*}} NOR_MMR6
or $3, 5 # CHECK: ori $3, $3, 5 # encoding: [0x50,0x63,0x00,0x05]
or $3, $4, 5 # CHECK: ori $3, $4, 5 # encoding: [0x50,0x64,0x00,0x05]
xor $3, 5 # CHECK: xori $3, $3, 5 # encoding: [0x70,0x63,0x00,0x05]