unsigned getMachineOpValue(const MCInst &MI,const MCOperand &MO,
SmallVectorImpl<MCFixup> &Fixups) const;
+ unsigned getMSAMemEncoding(const MCInst &MI, unsigned OpNo,
+ SmallVectorImpl<MCFixup> &Fixups) const;
+
unsigned getMemEncoding(const MCInst &MI, unsigned OpNo,
SmallVectorImpl<MCFixup> &Fixups) const;
unsigned getMemEncodingMMImm12(const MCInst &MI, unsigned OpNo,
return getExprOpValue(MO.getExpr(),Fixups);
}
+/// getMSAMemEncoding - Return binary encoding of memory operand for LD/ST
+/// instructions.
+unsigned
+MipsMCCodeEmitter::getMSAMemEncoding(const MCInst &MI, unsigned OpNo,
+ SmallVectorImpl<MCFixup> &Fixups) const {
+ // Base register is encoded in bits 20-16, offset is encoded in bits 15-0.
+ assert(MI.getOperand(OpNo).isReg());
+ unsigned RegBits = getMachineOpValue(MI, MI.getOperand(OpNo),Fixups) << 16;
+ unsigned OffBits = getMachineOpValue(MI, MI.getOperand(OpNo+1), Fixups);
+
+ // The immediate field of an LD/ST instruction is scaled which means it must
+ // be divided (when encoding) by the size (in bytes) of the instructions'
+ // data format.
+ // .b - 1 byte
+ // .h - 2 bytes
+ // .w - 4 bytes
+ // .d - 8 bytes
+ switch(MI.getOpcode())
+ {
+ default:
+ assert (0 && "Unexpected instruction");
+ break;
+ case Mips::LD_B:
+ case Mips::ST_B:
+ // We don't need to scale the offset in this case
+ break;
+ case Mips::LD_H:
+ case Mips::ST_H:
+ OffBits >>= 1;
+ break;
+ case Mips::LD_W:
+ case Mips::ST_W:
+ OffBits >>= 2;
+ break;
+ case Mips::LD_D:
+ case Mips::ST_D:
+ OffBits >>= 3;
+ break;
+ }
+
+ return (OffBits & 0xFFFF) | RegBits;
+}
+
/// getMemEncoding - Return binary encoding of memory related operand.
/// If the offset operand requires relocation, record the relocation.
unsigned
#
# RUN: llvm-mc %s -triple=mipsel-unknown-linux -mcpu=mips32r2 -mattr=+msa -arch=mips -filetype=obj -o - | llvm-objdump -d -triple=mipsel-unknown-linux -mattr=+msa -arch=mips - | FileCheck %s -check-prefix=CHECKOBJDUMP
#
-# CHECK: ld.b $w2, 1($7) # encoding: [0x78,0x01,0x38,0xa0]
-# CHECK: ld.h $w16, -9($zero) # encoding: [0x7b,0xf7,0x04,0x21]
-# CHECK: ld.w $w13, -6($4) # encoding: [0x7b,0xfa,0x23,0x62]
-# CHECK: ld.d $w1, -5($16) # encoding: [0x7b,0xfb,0x80,0x63]
-# CHECK: st.b $w29, 1($14) # encoding: [0x78,0x01,0x77,0x64]
-# CHECK: st.h $w6, -1($8) # encoding: [0x7b,0xff,0x41,0xa5]
-# CHECK: st.w $w18, 8($15) # encoding: [0x78,0x08,0x7c,0xa6]
-# CHECK: st.d $w3, -14($18) # encoding: [0x7b,0xf2,0x90,0xe7]
-
-# CHECKOBJDUMP: ld.b $w2, 1($7)
-# CHECKOBJDUMP: ld.h $w16, -9($zero)
-# CHECKOBJDUMP: ld.w $w13, -6($4)
-# CHECKOBJDUMP: ld.d $w1, -5($16)
-# CHECKOBJDUMP: st.b $w29, 1($14)
-# CHECKOBJDUMP: st.h $w6, -1($8)
-# CHECKOBJDUMP: st.w $w18, 8($15)
-# CHECKOBJDUMP: st.d $w3, -14($18)
-
- ld.b $w2, 1($7)
- ld.h $w16, -9($zero)
- ld.w $w13, -6($4)
- ld.d $w1, -5($16)
- st.b $w29, 1($14)
- st.h $w6, -1($8)
- st.w $w18, 8($15)
- st.d $w3, -14($18)
+# CHECK: ld.b $w0, -512($1) # encoding: [0x7a,0x00,0x08,0x20]
+# CHECK: ld.b $w1, 0($2) # encoding: [0x78,0x00,0x10,0x60]
+# CHECK: ld.b $w2, 511($3) # encoding: [0x79,0xff,0x18,0xa0]
+
+# CHECK: ld.h $w3, -1024($4) # encoding: [0x7a,0x00,0x20,0xe1]
+# CHECK: ld.h $w4, -512($5) # encoding: [0x7b,0x00,0x29,0x21]
+# CHECK: ld.h $w5, 0($6) # encoding: [0x78,0x00,0x31,0x61]
+# CHECK: ld.h $w6, 512($7) # encoding: [0x79,0x00,0x39,0xa1]
+# CHECK: ld.h $w7, 1022($8) # encoding: [0x79,0xff,0x41,0xe1]
+
+# CHECK: ld.w $w8, -2048($9) # encoding: [0x7a,0x00,0x4a,0x22]
+# CHECK: ld.w $w9, -1024($10) # encoding: [0x7b,0x00,0x52,0x62]
+# CHECK: ld.w $w10, -512($11) # encoding: [0x7b,0x80,0x5a,0xa2]
+# CHECK: ld.w $w11, 512($12) # encoding: [0x78,0x80,0x62,0xe2]
+# CHECK: ld.w $w12, 1024($13) # encoding: [0x79,0x00,0x6b,0x22]
+# CHECK: ld.w $w13, 2044($14) # encoding: [0x79,0xff,0x73,0x62]
+
+# CHECK: ld.d $w14, -4096($15) # encoding: [0x7a,0x00,0x7b,0xa3]
+# CHECK: ld.d $w15, -2048($16) # encoding: [0x7b,0x00,0x83,0xe3]
+# CHECK: ld.d $w16, -1024($17) # encoding: [0x7b,0x80,0x8c,0x23]
+# CHECK: ld.d $w17, -512($18) # encoding: [0x7b,0xc0,0x94,0x63]
+# CHECK: ld.d $w18, 0($19) # encoding: [0x78,0x00,0x9c,0xa3]
+# CHECK: ld.d $w19, 512($20) # encoding: [0x78,0x40,0xa4,0xe3]
+# CHECK: ld.d $w20, 1024($21) # encoding: [0x78,0x80,0xad,0x23]
+# CHECK: ld.d $w21, 2048($22) # encoding: [0x79,0x00,0xb5,0x63]
+# CHECK: ld.d $w22, 4088($23) # encoding: [0x79,0xff,0xbd,0xa3]
+
+# CHECKOBJDUMP: ld.b $w0, -512($1)
+# CHECKOBJDUMP: ld.b $w1, 0($2)
+# CHECKOBJDUMP: ld.b $w2, 511($3)
+
+# CHECKOBJDUMP: ld.h $w3, -1024($4)
+# CHECKOBJDUMP: ld.h $w4, -512($5)
+# CHECKOBJDUMP: ld.h $w5, 0($6)
+# CHECKOBJDUMP: ld.h $w6, 512($7)
+# CHECKOBJDUMP: ld.h $w7, 1022($8)
+
+# CHECKOBJDUMP: ld.w $w8, -2048($9)
+# CHECKOBJDUMP: ld.w $w9, -1024($10)
+# CHECKOBJDUMP: ld.w $w10, -512($11)
+# CHECKOBJDUMP: ld.w $w11, 512($12)
+# CHECKOBJDUMP: ld.w $w12, 1024($13)
+# CHECKOBJDUMP: ld.w $w13, 2044($14)
+
+# CHECKOBJDUMP: ld.d $w14, -4096($15)
+# CHECKOBJDUMP: ld.d $w15, -2048($16)
+# CHECKOBJDUMP: ld.d $w16, -1024($17)
+# CHECKOBJDUMP: ld.d $w17, -512($18)
+# CHECKOBJDUMP: ld.d $w18, 0($19)
+# CHECKOBJDUMP: ld.d $w19, 512($20)
+# CHECKOBJDUMP: ld.d $w20, 1024($21)
+# CHECKOBJDUMP: ld.d $w21, 2048($22)
+# CHECKOBJDUMP: ld.d $w22, 4088($23)
+
+ ld.b $w0, -512($1)
+ ld.b $w1, 0($2)
+ ld.b $w2, 511($3)
+
+ ld.h $w3, -1024($4)
+ ld.h $w4, -512($5)
+ ld.h $w5, 0($6)
+ ld.h $w6, 512($7)
+ ld.h $w7, 1022($8)
+
+ ld.w $w8, -2048($9)
+ ld.w $w9, -1024($10)
+ ld.w $w10, -512($11)
+ ld.w $w11, 512($12)
+ ld.w $w12, 1024($13)
+ ld.w $w13, 2044($14)
+
+ ld.d $w14, -4096($15)
+ ld.d $w15, -2048($16)
+ ld.d $w16, -1024($17)
+ ld.d $w17, -512($18)
+ ld.d $w18, 0($19)
+ ld.d $w19, 512($20)
+ ld.d $w20, 1024($21)
+ ld.d $w21, 2048($22)
+ ld.d $w22, 4088($23)
projects / oota-llvm.git / commitdiff