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Mips ELF: MicroMips direct object Little endian support.
Test included. Patch by Zoran Jovanovich llvm-svn: 188024
This commit is contained in:
Jack Carter
parent
3c99aa1abd
commit
69e05b321a
@ -39,11 +39,14 @@ class MipsMCCodeEmitter : public MCCodeEmitter {
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MCContext &Ctx;
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const MCSubtargetInfo &STI;
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bool IsLittleEndian;
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bool IsMicroMips;
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public:
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MipsMCCodeEmitter(const MCInstrInfo &mcii, MCContext &Ctx_,
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const MCSubtargetInfo &sti, bool IsLittle) :
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MCII(mcii), Ctx(Ctx_), STI (sti), IsLittleEndian(IsLittle) {}
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MCII(mcii), Ctx(Ctx_), STI (sti), IsLittleEndian(IsLittle) {
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IsMicroMips = STI.getFeatureBits() & Mips::FeatureMicroMips;
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}
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~MipsMCCodeEmitter() {}
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@ -53,9 +56,17 @@ public:
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void EmitInstruction(uint64_t Val, unsigned Size, raw_ostream &OS) const {
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// Output the instruction encoding in little endian byte order.
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for (unsigned i = 0; i < Size; ++i) {
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unsigned Shift = IsLittleEndian ? i * 8 : (Size - 1 - i) * 8;
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EmitByte((Val >> Shift) & 0xff, OS);
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// Little-endian byte ordering:
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// mips32r2: 4 | 3 | 2 | 1
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// microMIPS: 2 | 1 | 4 | 3
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if (IsLittleEndian && Size == 4 && IsMicroMips) {
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EmitInstruction(Val>>16, 2, OS);
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EmitInstruction(Val, 2, OS);
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} else {
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for (unsigned i = 0; i < Size; ++i) {
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unsigned Shift = IsLittleEndian ? i * 8 : (Size - 1 - i) * 8;
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EmitByte((Val >> Shift) & 0xff, OS);
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}
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}
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}
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@ -1,38 +1,73 @@
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# RUN: llvm-mc %s -triple=mipsel -show-encoding -mattr=micromips | FileCheck %s
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# RUN: llvm-mc %s -triple=mipsel -show-encoding -mattr=micromips | FileCheck -check-prefix=CHECK-EL %s
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# RUN: llvm-mc %s -triple=mips -show-encoding -mattr=micromips | FileCheck -check-prefix=CHECK-EB %s
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# Check that the assembler can handle the documented syntax
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# for arithmetic and logical instructions.
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#------------------------------------------------------------------------------
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# Arithmetic and Logical Instructions
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#------------------------------------------------------------------------------
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# CHECK: add $9, $6, $7 # encoding: [0x10,0x49,0xe6,0x00]
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# CHECK: addi $9, $6, 17767 # encoding: [0x67,0x45,0x26,0x11]
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# CHECK: addiu $9, $6, -15001 # encoding: [0x67,0xc5,0x26,0x31]
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# CHECK: addi $9, $6, 17767 # encoding: [0x67,0x45,0x26,0x11]
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# CHECK: addiu $9, $6, -15001 # encoding: [0x67,0xc5,0x26,0x31]
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# CHECK: addu $9, $6, $7 # encoding: [0x50,0x49,0xe6,0x00]
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# CHECK: sub $9, $6, $7 # encoding: [0x90,0x49,0xe6,0x00]
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# CHECK: subu $4, $3, $5 # encoding: [0xd0,0x21,0xa3,0x00]
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# CHECK: neg $6, $7 # encoding: [0x90,0x31,0xe0,0x00]
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# CHECK: negu $6, $7 # encoding: [0xd0,0x31,0xe0,0x00]
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# CHECK: move $7, $8 # encoding: [0x50,0x39,0x08,0x00]
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# CHECK: slt $3, $3, $5 # encoding: [0x50,0x1b,0xa3,0x00]
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# CHECK: slti $3, $3, 103 # encoding: [0x67,0x00,0x63,0x90]
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# CHECK: slti $3, $3, 103 # encoding: [0x67,0x00,0x63,0x90]
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# CHECK: sltiu $3, $3, 103 # encoding: [0x67,0x00,0x63,0xb0]
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# CHECK: sltu $3, $3, $5 # encoding: [0x90,0x1b,0xa3,0x00]
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# CHECK: and $9, $6, $7 # encoding: [0x50,0x4a,0xe6,0x00]
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# CHECK: andi $9, $6, 17767 # encoding: [0x67,0x45,0x26,0xd1]
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# CHECK: andi $9, $6, 17767 # encoding: [0x67,0x45,0x26,0xd1]
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# CHECK: or $3, $4, $5 # encoding: [0x90,0x1a,0xa4,0x00]
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# CHECK: ori $9, $6, 17767 # encoding: [0x67,0x45,0x26,0x51]
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# CHECK: xor $3, $3, $5 # encoding: [0x10,0x1b,0xa3,0x00]
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# CHECK: xori $9, $6, 17767 # encoding: [0x67,0x45,0x26,0x71]
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# CHECK: xori $9, $6, 17767 # encoding: [0x67,0x45,0x26,0x71]
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# CHECK: nor $9, $6, $7 # encoding: [0xd0,0x4a,0xe6,0x00]
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# CHECK: not $7, $8 # encoding: [0xd0,0x3a,0x08,0x00]
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# CHECK: mul $9, $6, $7 # encoding: [0x10,0x4a,0xe6,0x00]
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# CHECK: mult $9, $7 # encoding: [0x3c,0x8b,0xe9,0x00]
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# CHECK: multu $9, $7 # encoding: [0x3c,0x9b,0xe9,0x00]
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# Little endian
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#------------------------------------------------------------------------------
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# CHECK-EL: add $9, $6, $7 # encoding: [0xe6,0x00,0x10,0x49]
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# CHECK-EL: addi $9, $6, 17767 # encoding: [0x26,0x11,0x67,0x45]
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# CHECK-EL: addiu $9, $6, -15001 # encoding: [0x26,0x31,0x67,0xc5]
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# CHECK-EL: addi $9, $6, 17767 # encoding: [0x26,0x11,0x67,0x45]
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# CHECK-EL: addiu $9, $6, -15001 # encoding: [0x26,0x31,0x67,0xc5]
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# CHECK-EL: addu $9, $6, $7 # encoding: [0xe6,0x00,0x50,0x49]
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# CHECK-EL: sub $9, $6, $7 # encoding: [0xe6,0x00,0x90,0x49]
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# CHECK-EL: subu $4, $3, $5 # encoding: [0xa3,0x00,0xd0,0x21]
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# CHECK-EL: neg $6, $7 # encoding: [0xe0,0x00,0x90,0x31]
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# CHECK-EL: negu $6, $7 # encoding: [0xe0,0x00,0xd0,0x31]
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# CHECK-EL: move $7, $8 # encoding: [0x08,0x00,0x50,0x39]
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# CHECK-EL: slt $3, $3, $5 # encoding: [0xa3,0x00,0x50,0x1b]
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# CHECK-EL: slti $3, $3, 103 # encoding: [0x63,0x90,0x67,0x00]
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# CHECK-EL: slti $3, $3, 103 # encoding: [0x63,0x90,0x67,0x00]
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# CHECK-EL: sltiu $3, $3, 103 # encoding: [0x63,0xb0,0x67,0x00]
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# CHECK-EL: sltu $3, $3, $5 # encoding: [0xa3,0x00,0x90,0x1b]
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# CHECK-EL: and $9, $6, $7 # encoding: [0xe6,0x00,0x50,0x4a]
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# CHECK-EL: andi $9, $6, 17767 # encoding: [0x26,0xd1,0x67,0x45]
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# CHECK-EL: andi $9, $6, 17767 # encoding: [0x26,0xd1,0x67,0x45]
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# CHECK-EL: or $3, $4, $5 # encoding: [0xa4,0x00,0x90,0x1a]
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# CHECK-EL: ori $9, $6, 17767 # encoding: [0x26,0x51,0x67,0x45]
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# CHECK-EL: xor $3, $3, $5 # encoding: [0xa3,0x00,0x10,0x1b]
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# CHECK-EL: xori $9, $6, 17767 # encoding: [0x26,0x71,0x67,0x45]
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# CHECK-EL: xori $9, $6, 17767 # encoding: [0x26,0x71,0x67,0x45]
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# CHECK-EL: nor $9, $6, $7 # encoding: [0xe6,0x00,0xd0,0x4a]
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# CHECK-EL: not $7, $8 # encoding: [0x08,0x00,0xd0,0x3a]
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# CHECK-EL: mul $9, $6, $7 # encoding: [0xe6,0x00,0x10,0x4a]
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# CHECK-EL: mult $9, $7 # encoding: [0xe9,0x00,0x3c,0x8b]
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# CHECK-EL: multu $9, $7 # encoding: [0xe9,0x00,0x3c,0x9b]
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#------------------------------------------------------------------------------
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# Big endian
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#------------------------------------------------------------------------------
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# CHECK-EB: add $9, $6, $7 # encoding: [0x00,0xe6,0x49,0x10]
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# CHECK-EB: addi $9, $6, 17767 # encoding: [0x11,0x26,0x45,0x67]
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# CHECK-EB: addiu $9, $6, -15001 # encoding: [0x31,0x26,0xc5,0x67]
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# CHECK-EB: addi $9, $6, 17767 # encoding: [0x11,0x26,0x45,0x67]
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# CHECK-EB: addiu $9, $6, -15001 # encoding: [0x31,0x26,0xc5,0x67]
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# CHECK-EB: addu $9, $6, $7 # encoding: [0x00,0xe6,0x49,0x50]
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# CHECK-EB: sub $9, $6, $7 # encoding: [0x00,0xe6,0x49,0x90]
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# CHECK-EB: subu $4, $3, $5 # encoding: [0x00,0xa3,0x21,0xd0]
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# CHECK-EB: neg $6, $7 # encoding: [0x00,0xe0,0x31,0x90]
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# CHECK-EB: negu $6, $7 # encoding: [0x00,0xe0,0x31,0xd0]
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# CHECK-EB: move $7, $8 # encoding: [0x00,0x08,0x39,0x50]
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# CHECK-EB: slt $3, $3, $5 # encoding: [0x00,0xa3,0x1b,0x50]
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# CHECK-EB: slti $3, $3, 103 # encoding: [0x90,0x63,0x00,0x67]
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# CHECK-EB: slti $3, $3, 103 # encoding: [0x90,0x63,0x00,0x67]
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# CHECK-EB: sltiu $3, $3, 103 # encoding: [0xb0,0x63,0x00,0x67]
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# CHECK-EB: sltu $3, $3, $5 # encoding: [0x00,0xa3,0x1b,0x90]
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# CHECK-EB: and $9, $6, $7 # encoding: [0x00,0xe6,0x4a,0x50]
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# CHECK-EB: andi $9, $6, 17767 # encoding: [0xd1,0x26,0x45,0x67]
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# CHECK-EB: andi $9, $6, 17767 # encoding: [0xd1,0x26,0x45,0x67]
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# CHECK-EB: or $3, $4, $5 # encoding: [0x00,0xa4,0x1a,0x90]
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# CHECK-EB: ori $9, $6, 17767 # encoding: [0x51,0x26,0x45,0x67]
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# CHECK-EB: xor $3, $3, $5 # encoding: [0x00,0xa3,0x1b,0x10]
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# CHECK-EB: xori $9, $6, 17767 # encoding: [0x71,0x26,0x45,0x67]
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# CHECK-EB: xori $9, $6, 17767 # encoding: [0x71,0x26,0x45,0x67]
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# CHECK-EB: nor $9, $6, $7 # encoding: [0x00,0xe6,0x4a,0xd0]
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# CHECK-EB: not $7, $8 # encoding: [0x00,0x08,0x3a,0xd0]
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# CHECK-EB: mul $9, $6, $7 # encoding: [0x00,0xe6,0x4a,0x10]
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# CHECK-EB: mult $9, $7 # encoding: [0x00,0xe9,0x8b,0x3c]
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# CHECK-EB: multu $9, $7 # encoding: [0x00,0xe9,0x9b,0x3c]
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add $9, $6, $7
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add $9, $6, 17767
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addu $9, $6, -15001
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@ -1,17 +1,31 @@
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# RUN: llvm-mc %s -triple=mipsel -show-encoding -mattr=micromips | FileCheck %s
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# RUN: llvm-mc %s -triple=mipsel -show-encoding -mattr=micromips | FileCheck -check-prefix=CHECK-EL %s
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# RUN: llvm-mc %s -triple=mips -show-encoding -mattr=micromips | FileCheck -check-prefix=CHECK-EB %s
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# Check that the assembler can handle the documented syntax
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# for load and store instructions.
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#------------------------------------------------------------------------------
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# Load and Store Instructions
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#------------------------------------------------------------------------------
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# CHECK: lb $5, 8($4) # encoding: [0x08,0x00,0xa4,0x1c]
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# CHECK: lbu $6, 8($4) # encoding: [0x08,0x00,0xc4,0x14]
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# CHECK: lh $2, 8($4) # encoding: [0x08,0x00,0x44,0x3c]
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# CHECK: lhu $4, 8($2) # encoding: [0x08,0x00,0x82,0x34]
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# CHECK: lw $6, 4($5) # encoding: [0x04,0x00,0xc5,0xfc]
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# CHECK: sb $5, 8($4) # encoding: [0x08,0x00,0xa4,0x18]
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# CHECK: sh $2, 8($4) # encoding: [0x08,0x00,0x44,0x38]
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# CHECK: sw $5, 4($6) # encoding: [0x04,0x00,0xa6,0xf8]
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# Little endian
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#------------------------------------------------------------------------------
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# CHECK-EL: lb $5, 8($4) # encoding: [0xa4,0x1c,0x08,0x00]
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# CHECK-EL: lbu $6, 8($4) # encoding: [0xc4,0x14,0x08,0x00]
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# CHECK-EL: lh $2, 8($4) # encoding: [0x44,0x3c,0x08,0x00]
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# CHECK-EL: lhu $4, 8($2) # encoding: [0x82,0x34,0x08,0x00]
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# CHECK-EL: lw $6, 4($5) # encoding: [0xc5,0xfc,0x04,0x00]
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# CHECK-EL: sb $5, 8($4) # encoding: [0xa4,0x18,0x08,0x00]
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# CHECK-EL: sh $2, 8($4) # encoding: [0x44,0x38,0x08,0x00]
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# CHECK-EL: sw $5, 4($6) # encoding: [0xa6,0xf8,0x04,0x00]
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#------------------------------------------------------------------------------
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# Big endian
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#------------------------------------------------------------------------------
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# CHECK-EB: lb $5, 8($4) # encoding: [0x1c,0xa4,0x00,0x08]
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# CHECK-EB: lbu $6, 8($4) # encoding: [0x14,0xc4,0x00,0x08]
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# CHECK-EB: lh $2, 8($4) # encoding: [0x3c,0x44,0x00,0x08]
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# CHECK-EB: lhu $4, 8($2) # encoding: [0x34,0x82,0x00,0x08]
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# CHECK-EB: lw $6, 4($5) # encoding: [0xfc,0xc5,0x00,0x04]
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# CHECK-EB: sb $5, 8($4) # encoding: [0x18,0xa4,0x00,0x08]
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# CHECK-EB: sh $2, 8($4) # encoding: [0x38,0x44,0x00,0x08]
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# CHECK-EB: sw $5, 4($6) # encoding: [0xf8,0xa6,0x00,0x04]
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lb $5, 8($4)
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lbu $6, 8($4)
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lh $2, 8($4)
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@ -1,17 +1,31 @@
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# RUN: llvm-mc %s -triple=mipsel -show-encoding -mcpu=mips32r2 -mattr=micromips | FileCheck %s
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# RUN: llvm-mc %s -triple=mipsel -show-encoding -mcpu=mips32r2 -mattr=micromips | FileCheck -check-prefix=CHECK-EL %s
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# RUN: llvm-mc %s -triple=mips -show-encoding -mcpu=mips32r2 -mattr=micromips | FileCheck -check-prefix=CHECK-EB %s
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# Check that the assembler can handle the documented syntax
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# for shift instructions.
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#------------------------------------------------------------------------------
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# Shift Instructions
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#------------------------------------------------------------------------------
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# CHECK: sll $4, $3, 7 # encoding: [0x00,0x38,0x83,0x00]
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# CHECK: sllv $2, $3, $5 # encoding: [0x10,0x10,0x65,0x00]
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# CHECK: sra $4, $3, 7 # encoding: [0x80,0x38,0x83,0x00]
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# CHECK: srav $2, $3, $5 # encoding: [0x90,0x10,0x65,0x00]
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# CHECK: srl $4, $3, 7 # encoding: [0x40,0x38,0x83,0x00]
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# CHECK: srlv $2, $3, $5 # encoding: [0x50,0x10,0x65,0x00]
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# CHECK: rotr $9, $6, 7 # encoding: [0xc0,0x38,0x26,0x01]
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# CHECK: rotrv $9, $6, $7 # encoding: [0xd0,0x48,0xc7,0x00]
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# Little endian
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#------------------------------------------------------------------------------
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# CHECK-EL: sll $4, $3, 7 # encoding: [0x83,0x00,0x00,0x38]
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# CHECK-EL: sllv $2, $3, $5 # encoding: [0x65,0x00,0x10,0x10]
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# CHECK-EL: sra $4, $3, 7 # encoding: [0x83,0x00,0x80,0x38]
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# CHECK-EL: srav $2, $3, $5 # encoding: [0x65,0x00,0x90,0x10]
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# CHECK-EL: srl $4, $3, 7 # encoding: [0x83,0x00,0x40,0x38]
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# CHECK-EL: srlv $2, $3, $5 # encoding: [0x65,0x00,0x50,0x10]
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# CHECK-EL: rotr $9, $6, 7 # encoding: [0x26,0x01,0xc0,0x38]
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# CHECK-EL: rotrv $9, $6, $7 # encoding: [0xc7,0x00,0xd0,0x48]
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#------------------------------------------------------------------------------
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# Big endian
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#------------------------------------------------------------------------------
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# CHECK-EB: sll $4, $3, 7 # encoding: [0x00,0x83,0x38,0x00]
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# CHECK-EB: sllv $2, $3, $5 # encoding: [0x00,0x65,0x10,0x10]
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# CHECK-EB: sra $4, $3, 7 # encoding: [0x00,0x83,0x38,0x80]
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# CHECK-EB: srav $2, $3, $5 # encoding: [0x00,0x65,0x10,0x90]
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# CHECK-EB: srl $4, $3, 7 # encoding: [0x00,0x83,0x38,0x40]
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# CHECK-EB: srlv $2, $3, $5 # encoding: [0x00,0x65,0x10,0x50]
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# CHECK-EB: rotr $9, $6, 7 # encoding: [0x01,0x26,0x38,0xc0]
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# CHECK-EB: rotrv $9, $6, $7 # encoding: [0x00,0xc7,0x48,0xd0]
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sll $4, $3, 7
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sllv $2, $3, $5
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sra $4, $3, 7
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