[mips][microMIPS] Implement LWLE, LWRE, SWLE and SWRE instructions

Differential Revision: http://reviews.llvm.org/D11631

llvm-svn: 250377

6 files changed, 47 insertions, 0 deletions

diff --git a/llvm/lib/Target/Mips/MicroMipsInstrFormats.td b/llvm/lib/Target/Mips/MicroMipsInstrFormats.td
index 7807809470e..eb3456c2d74 100644
--- a/llvm/lib/Target/Mips/MicroMipsInstrFormats.td
+++ b/llvm/lib/Target/Mips/MicroMipsInstrFormats.td
@@ -418,6 +418,22 @@ class LWL_FM_MM<bits<4> funct> {
   let Inst{11-0}  = addr{11-0};
 }
 
+class POOL32C_STEVA_LDEVA_FM_MM<bits<4> type, bits<3> funct> {
+  bits<5> rt;
+  bits<21> addr;
+  bits<5> base = addr{20-16};
+  bits<9> offset = addr{8-0};
+
+  bits<32> Inst;
+
+  let Inst{31-26} = 0x18;
+  let Inst{25-21} = rt;
+  let Inst{20-16} = base;
+  let Inst{15-12} = type;
+  let Inst{11-9} = funct;
+  let Inst{8-0}  = offset;
+}
+
 class CMov_F_I_FM_MM<bits<7> func> : MMArch {
   bits<5> rd;
   bits<5> rs;
diff --git a/llvm/lib/Target/Mips/MicroMipsInstrInfo.td b/llvm/lib/Target/Mips/MicroMipsInstrInfo.td
index 4e7a1776014..a858a9ec908 100644
--- a/llvm/lib/Target/Mips/MicroMipsInstrInfo.td
+++ b/llvm/lib/Target/Mips/MicroMipsInstrInfo.td
@@ -751,6 +751,16 @@ let DecoderNamespace = "MicroMips", Predicates = [InMicroMips] in {
                LWL_FM_MM<0x8>;
   def SWR_MM : StoreLeftRightMM<"swr", MipsSWR, GPR32Opnd, mem_mm_12>,
                LWL_FM_MM<0x9>;
+  let DecoderMethod = "DecodeMemMMImm9" in {
+    def LWLE_MM : LoadLeftRightMM<"lwle", MipsLWL, GPR32Opnd, mem_mm_12>,
+                  POOL32C_STEVA_LDEVA_FM_MM<0x6, 0x2>;
+    def LWRE_MM : LoadLeftRightMM<"lwre", MipsLWR, GPR32Opnd, mem_mm_12>,
+                  POOL32C_STEVA_LDEVA_FM_MM<0x6, 0x3>;
+    def SWLE_MM : StoreLeftRightMM<"swle", MipsSWL, GPR32Opnd, mem_mm_12>,
+                  POOL32C_STEVA_LDEVA_FM_MM<0xa, 0x0>;
+    def SWRE_MM : StoreLeftRightMM<"swre", MipsSWR, GPR32Opnd, mem_mm_12>,
+                  POOL32C_STEVA_LDEVA_FM_MM<0xa, 0x1>, ISA_MIPS1_NOT_32R6_64R6;
+  }
 
   /// Load and Store Instructions - multiple
   def SWM32_MM  : StoreMultMM<"swm32">, LWM_FM_MM<0xd>;
diff --git a/llvm/test/MC/Disassembler/Mips/micromips32r3/valid-el.txt b/llvm/test/MC/Disassembler/Mips/micromips32r3/valid-el.txt
index f1cf2053967..f8df6399ad9 100644
--- a/llvm/test/MC/Disassembler/Mips/micromips32r3/valid-el.txt
+++ b/llvm/test/MC/Disassembler/Mips/micromips32r3/valid-el.txt
@@ -183,3 +183,7 @@
 0xa4 0x60 0x08 0xa8 # CHECK: sbe $5, 8($4)
 0xa4 0x60 0x08 0xaa # CHECK: she $5, 8($4)
 0xa4 0x60 0x08 0xae # CHECK: swe $5, 8($4)
+0x03 0x63 0x05 0xa2 # CHECK: swre $24, 5($3)
+0x03 0x63 0x05 0xa0 # CHECK: swle $24, 5($3)
+0x03 0x63 0x05 0x66 # CHECK: lwre $24, 5($3)
+0x04 0x63 0x02 0x64 # CHECK: lwle $24, 2($4)
diff --git a/llvm/test/MC/Disassembler/Mips/micromips32r3/valid.txt b/llvm/test/MC/Disassembler/Mips/micromips32r3/valid.txt
index 7274940abf5..76b02c3c4e6 100644
--- a/llvm/test/MC/Disassembler/Mips/micromips32r3/valid.txt
+++ b/llvm/test/MC/Disassembler/Mips/micromips32r3/valid.txt
@@ -183,3 +183,7 @@
 0x60 0xa4 0xa8 0x08 # CHECK: sbe $5, 8($4)
 0x60 0xa4 0xaa 0x08 # CHECK: she $5, 8($4)
 0x60 0xa4 0xae 0x08 # CHECK: swe $5, 8($4)
+0x63 0x03 0xa2 0x05 # CHECK: swre $24, 5($3)
+0x63 0x03 0xa0 0x05 # CHECK: swle $24, 5($3)
+0x63 0x03 0x66 0x05 # CHECK: lwre $24, 5($3)
+0x63 0x04 0x64 0x02 # CHECK: lwle $24, 2($4)
diff --git a/llvm/test/MC/Mips/micromips-control-instructions.s b/llvm/test/MC/Mips/micromips-control-instructions.s
index 41f2b62ca3d..5e4d5c468b5 100644
--- a/llvm/test/MC/Mips/micromips-control-instructions.s
+++ b/llvm/test/MC/Mips/micromips-control-instructions.s
@@ -42,6 +42,10 @@
 # CHECK-EL:    prefe 1, 8($5)             # encoding: [0x25,0x60,0x08,0xa4]
 # CHECK-EL:    cachee 1, 8($5)            # encoding: [0x25,0x60,0x08,0xa6]
 # CHECK-EL:    prefx 1, $3($5)            # encoding: [0x65,0x54,0xa0,0x09]
+# CHECK-EL:    swre $24, 5($3)            # encoding: [0x03,0x63,0x05,0xa2]
+# CHECK-EL:    swle $24, 5($3)            # encoding: [0x03,0x63,0x05,0xa0]
+# CHECK-EL:    lwre $24, 5($3)            # encoding: [0x03,0x63,0x05,0x66]
+# CHECK-EL:    lwle $24, 2($4)            # encoding: [0x04,0x63,0x02,0x64]
 #------------------------------------------------------------------------------
 # Big endian
 #------------------------------------------------------------------------------
@@ -78,6 +82,10 @@
 # CHECK-EB:   prefe 1, 8($5)              # encoding: [0x60,0x25,0xa4,0x08]
 # CHECK-EB:   cachee 1, 8($5)             # encoding: [0x60,0x25,0xa6,0x08]
 # CHECK-EB:   prefx 1, $3($5)             # encoding: [0x54,0x65,0x09,0xa0]
+# CHECK-EB:   swre $24, 5($3)             # encoding: [0x63,0x03,0xa2,0x05]
+# CHECK-EB:   swle $24, 5($3)             # encoding: [0x63,0x03,0xa0,0x05]
+# CHECK-EB:   lwre $24, 5($3)             # encoding: [0x63,0x03,0x66,0x05]
+# CHECK-EB:   lwle $24, 2($4)             # encoding: [0x63,0x04,0x64,0x02]
 
     sdbbp
     sdbbp 34
@@ -109,3 +117,7 @@
     prefe 1, 8($5)
     cachee 1, 8($5)
     prefx 1, $3($5)
+    swre $24, 5($3)
+    swle $24, 5($3)
+    lwre $24, 5($3)
+    lwle $24, 2($4)
diff --git a/llvm/test/MC/Mips/mips32r6/invalid-mips1-wrong-error.s b/llvm/test/MC/Mips/mips32r6/invalid-mips1-wrong-error.s
index a6ba7574c7a..6d569d12b39 100644
--- a/llvm/test/MC/Mips/mips32r6/invalid-mips1-wrong-error.s
+++ b/llvm/test/MC/Mips/mips32r6/invalid-mips1-wrong-error.s
@@ -14,4 +14,5 @@
         lwle      $s4,-4231($15)      # CHECK: :[[@LINE]]:{{[0-9]+}}: error: invalid operand for instruction
         lwre      $zero,-19147($gp)   # CHECK: :[[@LINE]]:{{[0-9]+}}: error: invalid operand for instruction
         swle      $15,13694($s3)      # CHECK: :[[@LINE]]:{{[0-9]+}}: error: invalid operand for instruction
+        swre      $24, 5($3)          # CHECK: :[[@LINE]]:{{[0-9]+}}: error: invalid operand for instruction
         swre      $s1,-26590($14)     # CHECK: :[[@LINE]]:{{[0-9]+}}: error: invalid operand for instruction