let Inst{5-0} = funct;
}
+//===----------------------------------------------------------------------===//
+// Exception return format <Cop0|1|0|funct>
+//===----------------------------------------------------------------------===//
+
+class ER_FM<bits<6> funct>
+{
+ bits<32> Inst;
+ let Inst{31-26} = 0x10;
+ let Inst{25} = 1;
+ let Inst{24-6} = 0;
+ let Inst{5-0} = funct;
+}
+
//===----------------------------------------------------------------------===//
//
// FLOATING POINT INSTRUCTION FORMATS
InstSE<(outs), (ins uimm10:$code_1, uimm10:$code_2),
!strconcat(opstr, "\t$code_1, $code_2"), [], NoItinerary, FrmOther>;
+// (D)Eret
+class ER_FT<string opstr> :
+ InstSE<(outs), (ins),
+ opstr, [], NoItinerary, FrmOther>;
+
// Sync
let hasSideEffects = 1 in
class SYNC_FT :
def BREAK : BRK_FT<"break">, BRK_FM<0xd>;
def SYSCALL : SYS_FT<"syscall">, SYS_FM<0xc>;
+def ERET : ER_FT<"eret">, ER_FM<0x18>;
+def DERET : ER_FT<"deret">, ER_FM<0x1f>;
+
/// Load-linked, Store-conditional
let Predicates = [NotN64, HasStdEnc] in {
def LL : LLBase<"ll", CPURegsOpnd, mem>, LW_FM<0x30>;
--- /dev/null
+# RUN: llvm-mc %s -triple=mips-unknown-unknown -show-encoding -mcpu=mips32r2 | \
+# RUN: FileCheck -check-prefix=CHECK32 %s
+# RUN: llvm-mc %s -triple=mips-unknown-unknown -show-encoding -mcpu=mips64r2 | \
+# RUN: FileCheck -check-prefix=CHECK64 %s
+
+# CHECK32: break # encoding: [0x00,0x00,0x00,0x0d]
+# CHECK32: break 7, 0 # encoding: [0x00,0x07,0x00,0x0d]
+# CHECK32: break 7, 5 # encoding: [0x00,0x07,0x01,0x4d]
+# CHECK32: syscall # encoding: [0x00,0x00,0x00,0x0c]
+# CHECK32: syscall 13396 # encoding: [0x00,0x0d,0x15,0x0c]
+# CHECK32: eret # encoding: [0x42,0x00,0x00,0x18]
+# CHECK32: deret # encoding: [0x42,0x00,0x00,0x1f]
+
+# CHECK64: break # encoding: [0x00,0x00,0x00,0x0d]
+# CHECK64: break 7, 0 # encoding: [0x00,0x07,0x00,0x0d]
+# CHECK64: break 7, 5 # encoding: [0x00,0x07,0x01,0x4d]
+# CHECK64: syscall # encoding: [0x00,0x00,0x00,0x0c]
+# CHECK64: syscall 13396 # encoding: [0x00,0x0d,0x15,0x0c]
+# CHECK64: eret # encoding: [0x42,0x00,0x00,0x18]
+# CHECK64: deret # encoding: [0x42,0x00,0x00,0x1f]
+
+ break
+ break 7
+ break 7,5
+ syscall
+ syscall 0x3454
+ eret
+ deret
.set f6,$f6
# CHECK: abs.s $f6, $f7 # encoding: [0x46,0x00,0x39,0x85]
# CHECK: and $3, $15, $15 # encoding: [0x01,0xef,0x18,0x24]
-# CHECK: break # encoding: [0x00,0x00,0x00,0x0d]
-# CHECK: break 7, 0 # encoding: [0x00,0x07,0x00,0x0d]
-# CHECK: break 7, 5 # encoding: [0x00,0x07,0x01,0x4d]
-# CHECK: syscall # encoding: [0x00,0x00,0x00,0x0c]
-# CHECK: syscall 13396 # encoding: [0x00,0x0d,0x15,0x0c]
abs.s f6,FPU_MASK
and r3,$t7,STORE_MASK
- break
- break 7
- break 7,5
- syscall
- syscall 0x3454