[micromips] Print instruction alias "not" if the last operand of a nor is zero.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188851 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/Mips/InstPrinter/MipsInstPrinter.cpp b/lib/Target/Mips/InstPrinter/MipsInstPrinter.cpp
index 369fecee0554d496f84754cace42a969c998c40a..755a948f722a513fc36a7d9eed8399068491b44c 100644 (file)
--- a/lib/Target/Mips/InstPrinter/MipsInstPrinter.cpp
+++ b/lib/Target/Mips/InstPrinter/MipsInstPrinter.cpp
@@ -257,6 +257,7 @@ bool MipsInstPrinter::printAlias(const MCInst &MI, raw_ostream &OS) {
     // jalr $ra, $r1 => jalr $r1
     return isReg<Mips::RA_64>(MI, 0) && printAlias("jalr", MI, 1, OS);
   case Mips::NOR:
+  case Mips::NOR_MM:
     // nor $r0, $r1, $zero => not $r0, $r1
     return isReg<Mips::ZERO>(MI, 2) && printAlias("not", MI, 0, 1, OS);
   case Mips::NOR64:

diff --git a/test/MC/Mips/micromips-alu-instructions.s b/test/MC/Mips/micromips-alu-instructions.s
index 426ab8baaf23addf9906b27ebc625d6e3ad3f4b8..3f6079cf67366a4d8472733eca0e424dce69ae1e 100644 (file)
--- a/test/MC/Mips/micromips-alu-instructions.s
+++ b/test/MC/Mips/micromips-alu-instructions.s
@@ -32,7 +32,7 @@
 # CHECK-EL: xori   $9, $6, 17767  # encoding: [0x26,0x71,0x67,0x45]
 # CHECK-EL: xori   $9, $6, 17767  # encoding: [0x26,0x71,0x67,0x45]
 # CHECK-EL: nor    $9, $6, $7     # encoding: [0xe6,0x00,0xd0,0x4a]
-# CHECK-EL: nor    $7, $8, $zero  # encoding: [0x08,0x00,0xd0,0x3a]
+# CHECK-EL: not    $7, $8         # encoding: [0x08,0x00,0xd0,0x3a]
 # CHECK-EL: mul    $9, $6, $7     # encoding: [0xe6,0x00,0x10,0x4a]
 # CHECK-EL: mult   $9, $7         # encoding: [0xe9,0x00,0x3c,0x8b]
 # CHECK-EL: multu  $9, $7         # encoding: [0xe9,0x00,0x3c,0x9b]
@@ -64,7 +64,7 @@
 # CHECK-EB:  xori  $9, $6, 17767  # encoding: [0x71,0x26,0x45,0x67]
 # CHECK-EB:  xori  $9, $6, 17767  # encoding: [0x71,0x26,0x45,0x67]
 # CHECK-EB:  nor $9, $6, $7       # encoding: [0x00,0xe6,0x4a,0xd0]
-# CHECK-EB:  nor $7, $8, $zero    # encoding: [0x00,0x08,0x3a,0xd0]
+# CHECK-EB:  not $7, $8           # encoding: [0x00,0x08,0x3a,0xd0]
 # CHECK-EB:  mul $9, $6, $7       # encoding: [0x00,0xe6,0x4a,0x10]
 # CHECK-EB:  mult  $9, $7         # encoding: [0x00,0xe9,0x8b,0x3c]
 # CHECK-EB:  multu $9, $7         # encoding: [0x00,0xe9,0x9b,0x3c]