style: put the repository assembly in gasm fmt canonical form

Assisted-by: GLM 5.3 Flash

testdata/verify/basic_loong64.s

@@ -5,50 +5,53 @@
 
 // add returns a + b.
 TEXT ·add(SB), NOSPLIT, $0-24
-	MOVV	a+0(FP), R4
-	MOVV	b+8(FP), R5
-	ADDV	R5, R4, R4
-	MOVV	R4, ret+16(FP)
+	MOVV a+0(FP), R4
+	MOVV b+8(FP), R5
+	ADDV R5, R4, R4
+	MOVV R4, ret+16(FP)
 	RET
 
 // arith exercises the 3R integer and FP set.
 TEXT ·arith(SB), NOSPLIT, $0-0
-	ADDV	R4, R5, R6
-	SUBV	R7, R8, R9
-	MULV	R10, R11, R12
-	DIVV	R13, R14, R15
-	AND	R16, R17, R18
-	OR	R18, R19, R20
-	XOR	R20, R21, R2
-	SLLV	R2, R23, R24
-	SRLV	R24, R25, R26
-	SRAV	R26, R27, R28
+	ADDV R4, R5, R6
+	SUBV R7, R8, R9
+	MULV R10, R11, R12
+	DIVV R13, R14, R15
+	AND  R16, R17, R18
+	OR   R18, R19, R20
+	XOR  R20, R21, R2
+	SLLV R2, R23, R24
+	SRLV R24, R25, R26
+	SRAV R26, R27, R28
 	RET
 
 // imm exercises the immediate forms.
 TEXT ·imm(SB), NOSPLIT, $0-0
-	ADDV	$42, R4, R5
-	ADDV	$-8, R6
-	AND	$0xff, R7, R8
-	OR	$1, R9, R10
-	XOR	$0, R11, R12
-	SGT	$100, R13, R14
-	SLLV	$4, R15, R16
-	MOVV	$0x12345, R17
+	ADDV $42, R4, R5
+	ADDV $-8, R6
+	AND  $0xff, R7, R8
+	OR   $1, R9, R10
+	XOR  $0, R11, R12
+	SGT  $100, R13, R14
+	SLLV $4, R15, R16
+	MOVV $0x12345, R17
 	RET
 
 // branch exercises conditional and unconditional control flow.
 TEXT ·branch(SB), NOSPLIT, $0-0
-	BEQ	R4, R5, done
-	BNE	R6, R7, skip
-	BLT	R8, R9, done
-	BGE	R10, R11, done
-	BLTU	R12, R13, done
-	BGEU	R14, R15, done
+	BEQ  R4, R5, done
+	BNE  R6, R7, skip
+	BLT  R8, R9, done
+	BGE  R10, R11, done
+	BLTU R12, R13, done
+	BGEU R14, R15, done
+
 skip:
-	JMP	loop
+	JMP  loop
+
 loop:
-	JAL	skip
+	JAL  skip
 	RET
+
 done:
 	RET