aarch64: FP8 scale and convert - Implement minor improvements

Following feedback received shortly after the initial commit of the
aarch64 instructions for scaling and converting fp8 instructions, this
patch addresses the issues raised in the relevant feedback.

This includes the following changes:

* Standardize all FP8 qualifier-set names.  This has resulted in the
  renaming of QL_V2FP8B8H to QL_V2_HB_LOWER and, likewise, QL_V28H16B
  to QL_V2_HB_FULL.

* Update `FP8_INSN' aarch64_opcode_table[] entries to reflect the new
  standardized qualifier-set names mentioned above and, in the case of
  the "fcvtn" entries, also add a leading 0 to their opcode values so
  they are given as 8 hexadecimal digits in length to ensure
  consistency in formatting relative to other entries in the table.

* Revise the added test-cases so that when checking operand fields in
  the disassembled binaries, all bits for these fields get tested to
  ensure they can be toggled on/off by the relevant operand arguments.

6 files changed, 166 insertions, 201 deletions

diff --git a/gas/testsuite/gas/aarch64/advsimd-fp8.d b/gas/testsuite/gas/aarch64/advsimd-fp8.d
index b4592a7..7348ba9 100644
--- a/gas/testsuite/gas/aarch64/advsimd-fp8.d
+++ b/gas/testsuite/gas/aarch64/advsimd-fp8.d
@@ -6,115 +6,104 @@
 Disassembly of section \.text:
 
 0+ <.*>:
+
 [ ]*[0-9a-f]+:	2ea17800 	bf1cvtl	v0.8h, v0.8b
-[ ]*[0-9a-f]+:	2ea17801 	bf1cvtl	v1.8h, v0.8b
-[ ]*[0-9a-f]+:	2ea17820 	bf1cvtl	v0.8h, v1.8b
-[ ]*[0-9a-f]+:	2ea17821 	bf1cvtl	v1.8h, v1.8b
-[ ]*[0-9a-f]+:	2ea17a30 	bf1cvtl	v16.8h, v17.8b
+[ ]*[0-9a-f]+:	2ea1781f 	bf1cvtl	v31.8h, v0.8b
+[ ]*[0-9a-f]+:	2ea17be0 	bf1cvtl	v0.8h, v31.8b
+[ ]*[0-9a-f]+:	2ea17bff 	bf1cvtl	v31.8h, v31.8b
 [ ]*[0-9a-f]+:	2ee17800 	bf2cvtl	v0.8h, v0.8b
-[ ]*[0-9a-f]+:	2ee17801 	bf2cvtl	v1.8h, v0.8b
-[ ]*[0-9a-f]+:	2ee17820 	bf2cvtl	v0.8h, v1.8b
-[ ]*[0-9a-f]+:	2ee17821 	bf2cvtl	v1.8h, v1.8b
-[ ]*[0-9a-f]+:	2ee17a30 	bf2cvtl	v16.8h, v17.8b
+[ ]*[0-9a-f]+:	2ee1781f 	bf2cvtl	v31.8h, v0.8b
+[ ]*[0-9a-f]+:	2ee17be0 	bf2cvtl	v0.8h, v31.8b
+[ ]*[0-9a-f]+:	2ee17bff 	bf2cvtl	v31.8h, v31.8b
 [ ]*[0-9a-f]+:	2e217800 	f1cvtl	v0.8h, v0.8b
-[ ]*[0-9a-f]+:	2e217801 	f1cvtl	v1.8h, v0.8b
-[ ]*[0-9a-f]+:	2e217820 	f1cvtl	v0.8h, v1.8b
-[ ]*[0-9a-f]+:	2e217821 	f1cvtl	v1.8h, v1.8b
-[ ]*[0-9a-f]+:	2e217a30 	f1cvtl	v16.8h, v17.8b
+[ ]*[0-9a-f]+:	2e21781f 	f1cvtl	v31.8h, v0.8b
+[ ]*[0-9a-f]+:	2e217be0 	f1cvtl	v0.8h, v31.8b
+[ ]*[0-9a-f]+:	2e217bff 	f1cvtl	v31.8h, v31.8b
 [ ]*[0-9a-f]+:	2e617800 	f2cvtl	v0.8h, v0.8b
-[ ]*[0-9a-f]+:	2e617801 	f2cvtl	v1.8h, v0.8b
-[ ]*[0-9a-f]+:	2e617820 	f2cvtl	v0.8h, v1.8b
-[ ]*[0-9a-f]+:	2e617821 	f2cvtl	v1.8h, v1.8b
-[ ]*[0-9a-f]+:	2e617a30 	f2cvtl	v16.8h, v17.8b
+[ ]*[0-9a-f]+:	2e61781f 	f2cvtl	v31.8h, v0.8b
+[ ]*[0-9a-f]+:	2e617be0 	f2cvtl	v0.8h, v31.8b
+[ ]*[0-9a-f]+:	2e617bff 	f2cvtl	v31.8h, v31.8b
 [ ]*[0-9a-f]+:	6ea17800 	bf1cvtl2	v0.8h, v0.16b
-[ ]*[0-9a-f]+:	6ea17801 	bf1cvtl2	v1.8h, v0.16b
-[ ]*[0-9a-f]+:	6ea17820 	bf1cvtl2	v0.8h, v1.16b
-[ ]*[0-9a-f]+:	6ea17821 	bf1cvtl2	v1.8h, v1.16b
-[ ]*[0-9a-f]+:	6ea17a30 	bf1cvtl2	v16.8h, v17.16b
+[ ]*[0-9a-f]+:	6ea1781f 	bf1cvtl2	v31.8h, v0.16b
+[ ]*[0-9a-f]+:	6ea17be0 	bf1cvtl2	v0.8h, v31.16b
+[ ]*[0-9a-f]+:	6ea17bff 	bf1cvtl2	v31.8h, v31.16b
 [ ]*[0-9a-f]+:	6ee17800 	bf2cvtl2	v0.8h, v0.16b
-[ ]*[0-9a-f]+:	6ee17801 	bf2cvtl2	v1.8h, v0.16b
-[ ]*[0-9a-f]+:	6ee17820 	bf2cvtl2	v0.8h, v1.16b
-[ ]*[0-9a-f]+:	6ee17821 	bf2cvtl2	v1.8h, v1.16b
-[ ]*[0-9a-f]+:	6ee17a30 	bf2cvtl2	v16.8h, v17.16b
+[ ]*[0-9a-f]+:	6ee1781f 	bf2cvtl2	v31.8h, v0.16b
+[ ]*[0-9a-f]+:	6ee17be0 	bf2cvtl2	v0.8h, v31.16b
+[ ]*[0-9a-f]+:	6ee17bff 	bf2cvtl2	v31.8h, v31.16b
 [ ]*[0-9a-f]+:	6e217800 	f1cvtl2	v0.8h, v0.16b
-[ ]*[0-9a-f]+:	6e217801 	f1cvtl2	v1.8h, v0.16b
-[ ]*[0-9a-f]+:	6e217820 	f1cvtl2	v0.8h, v1.16b
-[ ]*[0-9a-f]+:	6e217821 	f1cvtl2	v1.8h, v1.16b
-[ ]*[0-9a-f]+:	6e217a30 	f1cvtl2	v16.8h, v17.16b
+[ ]*[0-9a-f]+:	6e21781f 	f1cvtl2	v31.8h, v0.16b
+[ ]*[0-9a-f]+:	6e217be0 	f1cvtl2	v0.8h, v31.16b
+[ ]*[0-9a-f]+:	6e217bff 	f1cvtl2	v31.8h, v31.16b
 [ ]*[0-9a-f]+:	6e617800 	f2cvtl2	v0.8h, v0.16b
-[ ]*[0-9a-f]+:	6e617801 	f2cvtl2	v1.8h, v0.16b
-[ ]*[0-9a-f]+:	6e617820 	f2cvtl2	v0.8h, v1.16b
-[ ]*[0-9a-f]+:	6e617821 	f2cvtl2	v1.8h, v1.16b
-[ ]*[0-9a-f]+:	6e617a30 	f2cvtl2	v16.8h, v17.16b
+[ ]*[0-9a-f]+:	6e61781f 	f2cvtl2	v31.8h, v0.16b
+[ ]*[0-9a-f]+:	6e617be0 	f2cvtl2	v0.8h, v31.16b
+[ ]*[0-9a-f]+:	6e617bff 	f2cvtl2	v31.8h, v31.16b
 [ ]*[0-9a-f]+:	2ec03c00 	fscale	v0.4h, v0.4h, v0.4h
-[ ]*[0-9a-f]+:	2ec03c01 	fscale	v1.4h, v0.4h, v0.4h
-[ ]*[0-9a-f]+:	2ec03c20 	fscale	v0.4h, v1.4h, v0.4h
-[ ]*[0-9a-f]+:	2ec13c00 	fscale	v0.4h, v0.4h, v1.4h
-[ ]*[0-9a-f]+:	2ec03c21 	fscale	v1.4h, v1.4h, v0.4h
-[ ]*[0-9a-f]+:	2ec13c20 	fscale	v0.4h, v1.4h, v1.4h
-[ ]*[0-9a-f]+:	2ec13c21 	fscale	v1.4h, v1.4h, v1.4h
-[ ]*[0-9a-f]+:	2ed23e30 	fscale	v16.4h, v17.4h, v18.4h
+[ ]*[0-9a-f]+:	2ec03c1f 	fscale	v31.4h, v0.4h, v0.4h
+[ ]*[0-9a-f]+:	2ec03fe0 	fscale	v0.4h, v31.4h, v0.4h
+[ ]*[0-9a-f]+:	2edf3c00 	fscale	v0.4h, v0.4h, v31.4h
+[ ]*[0-9a-f]+:	2ec03fff 	fscale	v31.4h, v31.4h, v0.4h
+[ ]*[0-9a-f]+:	2edf3fe0 	fscale	v0.4h, v31.4h, v31.4h
+[ ]*[0-9a-f]+:	2ec03fff 	fscale	v31.4h, v31.4h, v0.4h
+[ ]*[0-9a-f]+:	2edf3fff 	fscale	v31.4h, v31.4h, v31.4h
 [ ]*[0-9a-f]+:	6ec03c00 	fscale	v0.8h, v0.8h, v0.8h
-[ ]*[0-9a-f]+:	6ec03c01 	fscale	v1.8h, v0.8h, v0.8h
-[ ]*[0-9a-f]+:	6ec03c20 	fscale	v0.8h, v1.8h, v0.8h
-[ ]*[0-9a-f]+:	6ec13c00 	fscale	v0.8h, v0.8h, v1.8h
-[ ]*[0-9a-f]+:	6ec03c21 	fscale	v1.8h, v1.8h, v0.8h
-[ ]*[0-9a-f]+:	6ec13c20 	fscale	v0.8h, v1.8h, v1.8h
-[ ]*[0-9a-f]+:	6ec13c21 	fscale	v1.8h, v1.8h, v1.8h
-[ ]*[0-9a-f]+:	6ed23e30 	fscale	v16.8h, v17.8h, v18.8h
+[ ]*[0-9a-f]+:	6ec03c1f 	fscale	v31.8h, v0.8h, v0.8h
+[ ]*[0-9a-f]+:	6ec03fe0 	fscale	v0.8h, v31.8h, v0.8h
+[ ]*[0-9a-f]+:	6edf3c00 	fscale	v0.8h, v0.8h, v31.8h
+[ ]*[0-9a-f]+:	6ec03fff 	fscale	v31.8h, v31.8h, v0.8h
+[ ]*[0-9a-f]+:	6edf3fe0 	fscale	v0.8h, v31.8h, v31.8h
+[ ]*[0-9a-f]+:	6ec03fff 	fscale	v31.8h, v31.8h, v0.8h
+[ ]*[0-9a-f]+:	6edf3fff 	fscale	v31.8h, v31.8h, v31.8h
 [ ]*[0-9a-f]+:	2ea0fc00 	fscale	v0.2s, v0.2s, v0.2s
-[ ]*[0-9a-f]+:	2ea0fc01 	fscale	v1.2s, v0.2s, v0.2s
-[ ]*[0-9a-f]+:	2ea0fc20 	fscale	v0.2s, v1.2s, v0.2s
-[ ]*[0-9a-f]+:	2ea1fc00 	fscale	v0.2s, v0.2s, v1.2s
-[ ]*[0-9a-f]+:	2ea0fc21 	fscale	v1.2s, v1.2s, v0.2s
-[ ]*[0-9a-f]+:	2ea1fc20 	fscale	v0.2s, v1.2s, v1.2s
-[ ]*[0-9a-f]+:	2ea1fc21 	fscale	v1.2s, v1.2s, v1.2s
-[ ]*[0-9a-f]+:	2eb2fe30 	fscale	v16.2s, v17.2s, v18.2s
+[ ]*[0-9a-f]+:	2ea0fc1f 	fscale	v31.2s, v0.2s, v0.2s
+[ ]*[0-9a-f]+:	2ea0ffe0 	fscale	v0.2s, v31.2s, v0.2s
+[ ]*[0-9a-f]+:	2ebffc00 	fscale	v0.2s, v0.2s, v31.2s
+[ ]*[0-9a-f]+:	2ea0ffff 	fscale	v31.2s, v31.2s, v0.2s
+[ ]*[0-9a-f]+:	2ebfffe0 	fscale	v0.2s, v31.2s, v31.2s
+[ ]*[0-9a-f]+:	2ea0ffff 	fscale	v31.2s, v31.2s, v0.2s
+[ ]*[0-9a-f]+:	2ebfffff 	fscale	v31.2s, v31.2s, v31.2s
 [ ]*[0-9a-f]+:	6ea0fc00 	fscale	v0.4s, v0.4s, v0.4s
-[ ]*[0-9a-f]+:	6ea0fc01 	fscale	v1.4s, v0.4s, v0.4s
-[ ]*[0-9a-f]+:	6ea0fc20 	fscale	v0.4s, v1.4s, v0.4s
-[ ]*[0-9a-f]+:	6ea1fc00 	fscale	v0.4s, v0.4s, v1.4s
-[ ]*[0-9a-f]+:	6ea0fc21 	fscale	v1.4s, v1.4s, v0.4s
-[ ]*[0-9a-f]+:	6ea1fc20 	fscale	v0.4s, v1.4s, v1.4s
-[ ]*[0-9a-f]+:	6ea1fc21 	fscale	v1.4s, v1.4s, v1.4s
-[ ]*[0-9a-f]+:	6eb2fe30 	fscale	v16.4s, v17.4s, v18.4s
+[ ]*[0-9a-f]+:	6ea0fc1f 	fscale	v31.4s, v0.4s, v0.4s
+[ ]*[0-9a-f]+:	6ea0ffe0 	fscale	v0.4s, v31.4s, v0.4s
+[ ]*[0-9a-f]+:	6ebffc00 	fscale	v0.4s, v0.4s, v31.4s
+[ ]*[0-9a-f]+:	6ea0ffff 	fscale	v31.4s, v31.4s, v0.4s
+[ ]*[0-9a-f]+:	6ebfffe0 	fscale	v0.4s, v31.4s, v31.4s
+[ ]*[0-9a-f]+:	6ea0ffff 	fscale	v31.4s, v31.4s, v0.4s
+[ ]*[0-9a-f]+:	6ebfffff 	fscale	v31.4s, v31.4s, v31.4s
 [ ]*[0-9a-f]+:	6ee0fc00 	fscale	v0.2d, v0.2d, v0.2d
-[ ]*[0-9a-f]+:	6ee0fc01 	fscale	v1.2d, v0.2d, v0.2d
-[ ]*[0-9a-f]+:	6ee0fc20 	fscale	v0.2d, v1.2d, v0.2d
-[ ]*[0-9a-f]+:	6ee1fc00 	fscale	v0.2d, v0.2d, v1.2d
-[ ]*[0-9a-f]+:	6ee0fc21 	fscale	v1.2d, v1.2d, v0.2d
-[ ]*[0-9a-f]+:	6ee1fc20 	fscale	v0.2d, v1.2d, v1.2d
-[ ]*[0-9a-f]+:	6ee1fc21 	fscale	v1.2d, v1.2d, v1.2d
-[ ]*[0-9a-f]+:	6ef2fe30 	fscale	v16.2d, v17.2d, v18.2d
+[ ]*[0-9a-f]+:	6ee0fc1f 	fscale	v31.2d, v0.2d, v0.2d
+[ ]*[0-9a-f]+:	6ee0ffe0 	fscale	v0.2d, v31.2d, v0.2d
+[ ]*[0-9a-f]+:	6efffc00 	fscale	v0.2d, v0.2d, v31.2d
+[ ]*[0-9a-f]+:	6ee0ffff 	fscale	v31.2d, v31.2d, v0.2d
+[ ]*[0-9a-f]+:	6effffe0 	fscale	v0.2d, v31.2d, v31.2d
+[ ]*[0-9a-f]+:	6ee0ffff 	fscale	v31.2d, v31.2d, v0.2d
+[ ]*[0-9a-f]+:	6effffff 	fscale	v31.2d, v31.2d, v31.2d
 [ ]*[0-9a-f]+:	0e40f400 	fcvtn	v0.8b, v0.4h, v0.4h
-[ ]*[0-9a-f]+:	0e40f401 	fcvtn	v1.8b, v0.4h, v0.4h
-[ ]*[0-9a-f]+:	0e40f420 	fcvtn	v0.8b, v1.4h, v0.4h
-[ ]*[0-9a-f]+:	0e41f400 	fcvtn	v0.8b, v0.4h, v1.4h
-[ ]*[0-9a-f]+:	0e40f421 	fcvtn	v1.8b, v1.4h, v0.4h
-[ ]*[0-9a-f]+:	0e41f420 	fcvtn	v0.8b, v1.4h, v1.4h
-[ ]*[0-9a-f]+:	0e41f421 	fcvtn	v1.8b, v1.4h, v1.4h
-[ ]*[0-9a-f]+:	0e52f630 	fcvtn	v16.8b, v17.4h, v18.4h
+[ ]*[0-9a-f]+:	0e40f41f 	fcvtn	v31.8b, v0.4h, v0.4h
+[ ]*[0-9a-f]+:	0e40f7e0 	fcvtn	v0.8b, v31.4h, v0.4h
+[ ]*[0-9a-f]+:	0e5ff400 	fcvtn	v0.8b, v0.4h, v31.4h
+[ ]*[0-9a-f]+:	0e40f7ff 	fcvtn	v31.8b, v31.4h, v0.4h
+[ ]*[0-9a-f]+:	0e5ff7e0 	fcvtn	v0.8b, v31.4h, v31.4h
+[ ]*[0-9a-f]+:	0e5ff7ff 	fcvtn	v31.8b, v31.4h, v31.4h
 [ ]*[0-9a-f]+:	4e40f400 	fcvtn	v0.16b, v0.8h, v0.8h
-[ ]*[0-9a-f]+:	4e40f401 	fcvtn	v1.16b, v0.8h, v0.8h
-[ ]*[0-9a-f]+:	4e40f420 	fcvtn	v0.16b, v1.8h, v0.8h
-[ ]*[0-9a-f]+:	4e41f400 	fcvtn	v0.16b, v0.8h, v1.8h
-[ ]*[0-9a-f]+:	4e40f421 	fcvtn	v1.16b, v1.8h, v0.8h
-[ ]*[0-9a-f]+:	4e41f420 	fcvtn	v0.16b, v1.8h, v1.8h
-[ ]*[0-9a-f]+:	4e41f421 	fcvtn	v1.16b, v1.8h, v1.8h
-[ ]*[0-9a-f]+:	4e52f630 	fcvtn	v16.16b, v17.8h, v18.8h
+[ ]*[0-9a-f]+:	4e40f41f 	fcvtn	v31.16b, v0.8h, v0.8h
+[ ]*[0-9a-f]+:	4e40f7e0 	fcvtn	v0.16b, v31.8h, v0.8h
+[ ]*[0-9a-f]+:	4e5ff400 	fcvtn	v0.16b, v0.8h, v31.8h
+[ ]*[0-9a-f]+:	4e40f7ff 	fcvtn	v31.16b, v31.8h, v0.8h
+[ ]*[0-9a-f]+:	4e5ff7e0 	fcvtn	v0.16b, v31.8h, v31.8h
+[ ]*[0-9a-f]+:	4e5ff7ff 	fcvtn	v31.16b, v31.8h, v31.8h
 [ ]*[0-9a-f]+:	0e00f400 	fcvtn	v0.8b, v0.4s, v0.4s
-[ ]*[0-9a-f]+:	0e00f401 	fcvtn	v1.8b, v0.4s, v0.4s
-[ ]*[0-9a-f]+:	0e00f420 	fcvtn	v0.8b, v1.4s, v0.4s
-[ ]*[0-9a-f]+:	0e01f400 	fcvtn	v0.8b, v0.4s, v1.4s
-[ ]*[0-9a-f]+:	0e00f421 	fcvtn	v1.8b, v1.4s, v0.4s
-[ ]*[0-9a-f]+:	0e01f420 	fcvtn	v0.8b, v1.4s, v1.4s
-[ ]*[0-9a-f]+:	0e01f421 	fcvtn	v1.8b, v1.4s, v1.4s
-[ ]*[0-9a-f]+:	0e12f630 	fcvtn	v16.8b, v17.4s, v18.4s
+[ ]*[0-9a-f]+:	0e00f41f 	fcvtn	v31.8b, v0.4s, v0.4s
+[ ]*[0-9a-f]+:	0e00f7e0 	fcvtn	v0.8b, v31.4s, v0.4s
+[ ]*[0-9a-f]+:	0e1ff400 	fcvtn	v0.8b, v0.4s, v31.4s
+[ ]*[0-9a-f]+:	0e00f7ff 	fcvtn	v31.8b, v31.4s, v0.4s
+[ ]*[0-9a-f]+:	0e1ff7e0 	fcvtn	v0.8b, v31.4s, v31.4s
+[ ]*[0-9a-f]+:	0e1ff7ff 	fcvtn	v31.8b, v31.4s, v31.4s
 [ ]*[0-9a-f]+:	4e00f400 	fcvtn2	v0.16b, v0.4s, v0.4s
-[ ]*[0-9a-f]+:	4e00f401 	fcvtn2	v1.16b, v0.4s, v0.4s
-[ ]*[0-9a-f]+:	4e00f420 	fcvtn2	v0.16b, v1.4s, v0.4s
-[ ]*[0-9a-f]+:	4e01f400 	fcvtn2	v0.16b, v0.4s, v1.4s
-[ ]*[0-9a-f]+:	4e00f421 	fcvtn2	v1.16b, v1.4s, v0.4s
-[ ]*[0-9a-f]+:	4e01f420 	fcvtn2	v0.16b, v1.4s, v1.4s
-[ ]*[0-9a-f]+:	4e01f421 	fcvtn2	v1.16b, v1.4s, v1.4s
-[ ]*[0-9a-f]+:	4e12f630 	fcvtn2	v16.16b, v17.4s, v18.4s
+[ ]*[0-9a-f]+:	4e00f41f 	fcvtn2	v31.16b, v0.4s, v0.4s
+[ ]*[0-9a-f]+:	4e00f7e0 	fcvtn2	v0.16b, v31.4s, v0.4s
+[ ]*[0-9a-f]+:	4e1ff400 	fcvtn2	v0.16b, v0.4s, v31.4s
+[ ]*[0-9a-f]+:	4e00f7ff 	fcvtn2	v31.16b, v31.4s, v0.4s
+[ ]*[0-9a-f]+:	4e1ff7e0 	fcvtn2	v0.16b, v31.4s, v31.4s
+[ ]*[0-9a-f]+:	4e1ff7ff 	fcvtn2	v31.16b, v31.4s, v31.4s
diff --git a/gas/testsuite/gas/aarch64/advsimd-fp8.s b/gas/testsuite/gas/aarch64/advsimd-fp8.s
index e49f38d..7f2f38d 100644
--- a/gas/testsuite/gas/aarch64/advsimd-fp8.s
+++ b/gas/testsuite/gas/aarch64/advsimd-fp8.s
@@ -6,10 +6,9 @@
 
 	.macro cvrt_lowerhalf, op
 	\op 	v0.8h, v0.8b
-	\op 	v1.8h, v0.8b
-	\op 	v0.8h, v1.8b
-	\op 	v1.8h, v1.8b
-	\op 	v16.8h, v17.8b
+	\op 	v31.8h, v0.8b
+	\op 	v0.8h, v31.8b
+	\op 	v31.8h, v31.8b
 	.endm
 
 	cvrt_lowerhalf	bf1cvtl
@@ -22,10 +21,9 @@
 
 	.macro cvrt_upperhalf, op
 	\op 	v0.8h, v0.16b
-	\op 	v1.8h, v0.16b
-	\op 	v0.8h, v1.16b
-	\op 	v1.8h, v1.16b
-	\op 	v16.8h, v17.16b
+	\op 	v31.8h, v0.16b
+	\op 	v0.8h, v31.16b
+	\op 	v31.8h, v31.16b
 	.endm
 
 	cvrt_upperhalf	bf1cvtl2
@@ -37,13 +35,13 @@
 
 	.macro fscale_gen, op_var
 	fscale	v0.\op_var, v0.\op_var, v0.\op_var
-	fscale	v1.\op_var, v0.\op_var, v0.\op_var
-	fscale	v0.\op_var, v1.\op_var, v0.\op_var
-	fscale	v0.\op_var, v0.\op_var, v1.\op_var
-	fscale	v1.\op_var, v1.\op_var, v0.\op_var
-	fscale	v0.\op_var, v1.\op_var, v1.\op_var
-	fscale	v1.\op_var, v1.\op_var, v1.\op_var
-	fscale	v16.\op_var, v17.\op_var, v18.\op_var
+	fscale	v31.\op_var, v0.\op_var, v0.\op_var
+	fscale	v0.\op_var, v31.\op_var, v0.\op_var
+	fscale	v0.\op_var, v0.\op_var, v31.\op_var
+	fscale	v31.\op_var, v31.\op_var, v0.\op_var
+	fscale	v0.\op_var, v31.\op_var, v31.\op_var
+	fscale	v31.\op_var, v31.\op_var, v0.\op_var
+	fscale	v31.\op_var, v31.\op_var, v31.\op_var
 	.endm
 
 	/* Half-precision variant.  */
@@ -58,13 +56,12 @@
 
 	.macro fcvtn_to_fp8, op, sd, ss
 	\op	v0.\sd, v0.\ss, v0.\ss
-	\op	v1.\sd, v0.\ss, v0.\ss
-	\op	v0.\sd, v1.\ss, v0.\ss
-	\op	v0.\sd, v0.\ss, v1.\ss
-	\op	v1.\sd, v1.\ss, v0.\ss
-	\op	v0.\sd, v1.\ss, v1.\ss
-	\op	v1.\sd, v1.\ss, v1.\ss
-	\op	v16.\sd, v17.\ss, v18.\ss
+	\op	v31.\sd, v0.\ss, v0.\ss
+	\op	v0.\sd, v31.\ss, v0.\ss
+	\op	v0.\sd, v0.\ss, v31.\ss
+	\op	v31.\sd, v31.\ss, v0.\ss
+	\op	v0.\sd, v31.\ss, v31.\ss
+	\op	v31.\sd, v31.\ss, v31.\ss
 	.endm
 
 	/* Half-precision variant.  */
diff --git a/gas/testsuite/gas/aarch64/sme2-fp8.d b/gas/testsuite/gas/aarch64/sme2-fp8.d
index 8d952d4..18f3df4 100644
--- a/gas/testsuite/gas/aarch64/sme2-fp8.d
+++ b/gas/testsuite/gas/aarch64/sme2-fp8.d
@@ -6,123 +6,113 @@
 Disassembly of section \.text:
 
 0+ <.*>:
-[ ]*[0-9a-f]+:	c166e040 	bf1cvt	{z0.h-z1.h}, z2.b
+[ ]*[0-9a-f]+:	c166e060 	bf1cvt	{z0.h-z1.h}, z3.b
 [ ]*[0-9a-f]+:	c166e080 	bf1cvt	{z0.h-z1.h}, z4.b
-[ ]*[0-9a-f]+:	c166e042 	bf1cvt	{z2.h-z3.h}, z2.b
 [ ]*[0-9a-f]+:	c166e082 	bf1cvt	{z2.h-z3.h}, z4.b
-[ ]*[0-9a-f]+:	c166e3dc 	bf1cvt	{z28.h-z29.h}, z30.b
-[ ]*[0-9a-f]+:	c1e6e040 	bf2cvt	{z0.h-z1.h}, z2.b
+[ ]*[0-9a-f]+:	c166e3fc 	bf1cvt	{z28.h-z29.h}, z31.b
+[ ]*[0-9a-f]+:	c1e6e060 	bf2cvt	{z0.h-z1.h}, z3.b
 [ ]*[0-9a-f]+:	c1e6e080 	bf2cvt	{z0.h-z1.h}, z4.b
-[ ]*[0-9a-f]+:	c1e6e042 	bf2cvt	{z2.h-z3.h}, z2.b
 [ ]*[0-9a-f]+:	c1e6e082 	bf2cvt	{z2.h-z3.h}, z4.b
-[ ]*[0-9a-f]+:	c1e6e3dc 	bf2cvt	{z28.h-z29.h}, z30.b
-[ ]*[0-9a-f]+:	c166e041 	bf1cvtl	{z0.h-z1.h}, z2.b
+[ ]*[0-9a-f]+:	c1e6e3fc 	bf2cvt	{z28.h-z29.h}, z31.b
+[ ]*[0-9a-f]+:	c166e061 	bf1cvtl	{z0.h-z1.h}, z3.b
 [ ]*[0-9a-f]+:	c166e081 	bf1cvtl	{z0.h-z1.h}, z4.b
-[ ]*[0-9a-f]+:	c166e043 	bf1cvtl	{z2.h-z3.h}, z2.b
 [ ]*[0-9a-f]+:	c166e083 	bf1cvtl	{z2.h-z3.h}, z4.b
-[ ]*[0-9a-f]+:	c166e3dd 	bf1cvtl	{z28.h-z29.h}, z30.b
-[ ]*[0-9a-f]+:	c1e6e041 	bf2cvtl	{z0.h-z1.h}, z2.b
+[ ]*[0-9a-f]+:	c166e3fd 	bf1cvtl	{z28.h-z29.h}, z31.b
+[ ]*[0-9a-f]+:	c1e6e061 	bf2cvtl	{z0.h-z1.h}, z3.b
 [ ]*[0-9a-f]+:	c1e6e081 	bf2cvtl	{z0.h-z1.h}, z4.b
-[ ]*[0-9a-f]+:	c1e6e043 	bf2cvtl	{z2.h-z3.h}, z2.b
 [ ]*[0-9a-f]+:	c1e6e083 	bf2cvtl	{z2.h-z3.h}, z4.b
-[ ]*[0-9a-f]+:	c1e6e3dd 	bf2cvtl	{z28.h-z29.h}, z30.b
-[ ]*[0-9a-f]+:	c126e040 	f1cvt	{z0.h-z1.h}, z2.b
+[ ]*[0-9a-f]+:	c1e6e3fd 	bf2cvtl	{z28.h-z29.h}, z31.b
+[ ]*[0-9a-f]+:	c126e060 	f1cvt	{z0.h-z1.h}, z3.b
 [ ]*[0-9a-f]+:	c126e080 	f1cvt	{z0.h-z1.h}, z4.b
-[ ]*[0-9a-f]+:	c126e042 	f1cvt	{z2.h-z3.h}, z2.b
 [ ]*[0-9a-f]+:	c126e082 	f1cvt	{z2.h-z3.h}, z4.b
-[ ]*[0-9a-f]+:	c126e3dc 	f1cvt	{z28.h-z29.h}, z30.b
-[ ]*[0-9a-f]+:	c1a6e040 	f2cvt	{z0.h-z1.h}, z2.b
+[ ]*[0-9a-f]+:	c126e3fc 	f1cvt	{z28.h-z29.h}, z31.b
+[ ]*[0-9a-f]+:	c1a6e060 	f2cvt	{z0.h-z1.h}, z3.b
 [ ]*[0-9a-f]+:	c1a6e080 	f2cvt	{z0.h-z1.h}, z4.b
-[ ]*[0-9a-f]+:	c1a6e042 	f2cvt	{z2.h-z3.h}, z2.b
 [ ]*[0-9a-f]+:	c1a6e082 	f2cvt	{z2.h-z3.h}, z4.b
-[ ]*[0-9a-f]+:	c1a6e3dc 	f2cvt	{z28.h-z29.h}, z30.b
-[ ]*[0-9a-f]+:	c126e041 	f1cvtl	{z0.h-z1.h}, z2.b
+[ ]*[0-9a-f]+:	c1a6e3fc 	f2cvt	{z28.h-z29.h}, z31.b
+[ ]*[0-9a-f]+:	c126e061 	f1cvtl	{z0.h-z1.h}, z3.b
 [ ]*[0-9a-f]+:	c126e081 	f1cvtl	{z0.h-z1.h}, z4.b
-[ ]*[0-9a-f]+:	c126e043 	f1cvtl	{z2.h-z3.h}, z2.b
 [ ]*[0-9a-f]+:	c126e083 	f1cvtl	{z2.h-z3.h}, z4.b
-[ ]*[0-9a-f]+:	c126e3dd 	f1cvtl	{z28.h-z29.h}, z30.b
-[ ]*[0-9a-f]+:	c1a6e041 	f2cvtl	{z0.h-z1.h}, z2.b
+[ ]*[0-9a-f]+:	c126e3fd 	f1cvtl	{z28.h-z29.h}, z31.b
+[ ]*[0-9a-f]+:	c1a6e061 	f2cvtl	{z0.h-z1.h}, z3.b
 [ ]*[0-9a-f]+:	c1a6e081 	f2cvtl	{z0.h-z1.h}, z4.b
-[ ]*[0-9a-f]+:	c1a6e043 	f2cvtl	{z2.h-z3.h}, z2.b
 [ ]*[0-9a-f]+:	c1a6e083 	f2cvtl	{z2.h-z3.h}, z4.b
-[ ]*[0-9a-f]+:	c1a6e3dd 	f2cvtl	{z28.h-z29.h}, z30.b
-[ ]*[0-9a-f]+:	c164e002 	bfcvt	z2.b, {z0.h-z1.h}
+[ ]*[0-9a-f]+:	c1a6e3fd 	f2cvtl	{z28.h-z29.h}, z31.b
+[ ]*[0-9a-f]+:	c164e003 	bfcvt	z3.b, {z0.h-z1.h}
 [ ]*[0-9a-f]+:	c164e004 	bfcvt	z4.b, {z0.h-z1.h}
-[ ]*[0-9a-f]+:	c164e042 	bfcvt	z2.b, {z2.h-z3.h}
 [ ]*[0-9a-f]+:	c164e044 	bfcvt	z4.b, {z2.h-z3.h}
-[ ]*[0-9a-f]+:	c164e39e 	bfcvt	z30.b, {z28.h-z29.h}
-[ ]*[0-9a-f]+:	c124e002 	fcvt	z2.b, {z0.h-z1.h}
+[ ]*[0-9a-f]+:	c164e39f 	bfcvt	z31.b, {z28.h-z29.h}
+[ ]*[0-9a-f]+:	c124e003 	fcvt	z3.b, {z0.h-z1.h}
 [ ]*[0-9a-f]+:	c124e004 	fcvt	z4.b, {z0.h-z1.h}
-[ ]*[0-9a-f]+:	c124e042 	fcvt	z2.b, {z2.h-z3.h}
 [ ]*[0-9a-f]+:	c124e044 	fcvt	z4.b, {z2.h-z3.h}
-[ ]*[0-9a-f]+:	c124e39e 	fcvt	z30.b, {z28.h-z29.h}
-[ ]*[0-9a-f]+:	c134e024 	fcvtn	z4.b, {z0.s-z3.s}
+[ ]*[0-9a-f]+:	c124e39f 	fcvt	z31.b, {z28.h-z29.h}
+[ ]*[0-9a-f]+:	c134e027 	fcvtn	z7.b, {z0.s-z3.s}
 [ ]*[0-9a-f]+:	c134e028 	fcvtn	z8.b, {z0.s-z3.s}
-[ ]*[0-9a-f]+:	c134e0a4 	fcvtn	z4.b, {z4.s-z7.s}
-[ ]*[0-9a-f]+:	c134e0a8 	fcvtn	z8.b, {z4.s-z7.s}
-[ ]*[0-9a-f]+:	c134e33c 	fcvtn	z28.b, {z24.s-z27.s}
-[ ]*[0-9a-f]+:	c134e004 	fcvt	z4.b, {z0.s-z3.s}
+[ ]*[0-9a-f]+:	c134e0a1 	fcvtn	z1.b, {z4.s-z7.s}
+[ ]*[0-9a-f]+:	c134e0a2 	fcvtn	z2.b, {z4.s-z7.s}
+[ ]*[0-9a-f]+:	c134e33f 	fcvtn	z31.b, {z24.s-z27.s}
+[ ]*[0-9a-f]+:	c134e007 	fcvt	z7.b, {z0.s-z3.s}
 [ ]*[0-9a-f]+:	c134e008 	fcvt	z8.b, {z0.s-z3.s}
-[ ]*[0-9a-f]+:	c134e084 	fcvt	z4.b, {z4.s-z7.s}
-[ ]*[0-9a-f]+:	c134e088 	fcvt	z8.b, {z4.s-z7.s}
-[ ]*[0-9a-f]+:	c134e31c 	fcvt	z28.b, {z24.s-z27.s}
+[ ]*[0-9a-f]+:	c134e081 	fcvt	z1.b, {z4.s-z7.s}
+[ ]*[0-9a-f]+:	c134e082 	fcvt	z2.b, {z4.s-z7.s}
+[ ]*[0-9a-f]+:	c134e31f 	fcvt	z31.b, {z24.s-z27.s}
 [ ]*[0-9a-f]+:	c162a180 	fscale	{z0.h-z1.h}, {z0.h-z1.h}, z2.h
 [ ]*[0-9a-f]+:	c162a182 	fscale	{z2.h-z3.h}, {z2.h-z3.h}, z2.h
 [ ]*[0-9a-f]+:	c164a180 	fscale	{z0.h-z1.h}, {z0.h-z1.h}, z4.h
 [ ]*[0-9a-f]+:	c164a182 	fscale	{z2.h-z3.h}, {z2.h-z3.h}, z4.h
-[ ]*[0-9a-f]+:	c16fa198 	fscale	{z24.h-z25.h}, {z24.h-z25.h}, z15.h
+[ ]*[0-9a-f]+:	c16fa19e 	fscale	{z30.h-z31.h}, {z30.h-z31.h}, z15.h
 [ ]*[0-9a-f]+:	c164a980 	fscale	{z0.h-z3.h}, {z0.h-z3.h}, z4.h
 [ ]*[0-9a-f]+:	c164a984 	fscale	{z4.h-z7.h}, {z4.h-z7.h}, z4.h
 [ ]*[0-9a-f]+:	c168a980 	fscale	{z0.h-z3.h}, {z0.h-z3.h}, z8.h
 [ ]*[0-9a-f]+:	c168a984 	fscale	{z4.h-z7.h}, {z4.h-z7.h}, z8.h
-[ ]*[0-9a-f]+:	c16fa998 	fscale	{z24.h-z27.h}, {z24.h-z27.h}, z15.h
+[ ]*[0-9a-f]+:	c16fa99c 	fscale	{z28.h-z31.h}, {z28.h-z31.h}, z15.h
 [ ]*[0-9a-f]+:	c1a2a180 	fscale	{z0.s-z1.s}, {z0.s-z1.s}, z2.s
 [ ]*[0-9a-f]+:	c1a2a182 	fscale	{z2.s-z3.s}, {z2.s-z3.s}, z2.s
 [ ]*[0-9a-f]+:	c1a4a180 	fscale	{z0.s-z1.s}, {z0.s-z1.s}, z4.s
 [ ]*[0-9a-f]+:	c1a4a182 	fscale	{z2.s-z3.s}, {z2.s-z3.s}, z4.s
-[ ]*[0-9a-f]+:	c1afa198 	fscale	{z24.s-z25.s}, {z24.s-z25.s}, z15.s
+[ ]*[0-9a-f]+:	c1afa19e 	fscale	{z30.s-z31.s}, {z30.s-z31.s}, z15.s
 [ ]*[0-9a-f]+:	c1a4a980 	fscale	{z0.s-z3.s}, {z0.s-z3.s}, z4.s
 [ ]*[0-9a-f]+:	c1a4a984 	fscale	{z4.s-z7.s}, {z4.s-z7.s}, z4.s
 [ ]*[0-9a-f]+:	c1a8a980 	fscale	{z0.s-z3.s}, {z0.s-z3.s}, z8.s
 [ ]*[0-9a-f]+:	c1a8a984 	fscale	{z4.s-z7.s}, {z4.s-z7.s}, z8.s
-[ ]*[0-9a-f]+:	c1afa998 	fscale	{z24.s-z27.s}, {z24.s-z27.s}, z15.s
+[ ]*[0-9a-f]+:	c1afa99c 	fscale	{z28.s-z31.s}, {z28.s-z31.s}, z15.s
 [ ]*[0-9a-f]+:	c1e2a180 	fscale	{z0.d-z1.d}, {z0.d-z1.d}, z2.d
 [ ]*[0-9a-f]+:	c1e2a182 	fscale	{z2.d-z3.d}, {z2.d-z3.d}, z2.d
 [ ]*[0-9a-f]+:	c1e4a180 	fscale	{z0.d-z1.d}, {z0.d-z1.d}, z4.d
 [ ]*[0-9a-f]+:	c1e4a182 	fscale	{z2.d-z3.d}, {z2.d-z3.d}, z4.d
-[ ]*[0-9a-f]+:	c1efa198 	fscale	{z24.d-z25.d}, {z24.d-z25.d}, z15.d
+[ ]*[0-9a-f]+:	c1efa19e 	fscale	{z30.d-z31.d}, {z30.d-z31.d}, z15.d
 [ ]*[0-9a-f]+:	c1e4a980 	fscale	{z0.d-z3.d}, {z0.d-z3.d}, z4.d
 [ ]*[0-9a-f]+:	c1e4a984 	fscale	{z4.d-z7.d}, {z4.d-z7.d}, z4.d
 [ ]*[0-9a-f]+:	c1e8a980 	fscale	{z0.d-z3.d}, {z0.d-z3.d}, z8.d
 [ ]*[0-9a-f]+:	c1e8a984 	fscale	{z4.d-z7.d}, {z4.d-z7.d}, z8.d
-[ ]*[0-9a-f]+:	c1efa998 	fscale	{z24.d-z27.d}, {z24.d-z27.d}, z15.d
+[ ]*[0-9a-f]+:	c1efa99c 	fscale	{z28.d-z31.d}, {z28.d-z31.d}, z15.d
 [ ]*[0-9a-f]+:	c162b180 	fscale	{z0.h-z1.h}, {z0.h-z1.h}, {z2.h-z3.h}
 [ ]*[0-9a-f]+:	c162b182 	fscale	{z2.h-z3.h}, {z2.h-z3.h}, {z2.h-z3.h}
 [ ]*[0-9a-f]+:	c164b180 	fscale	{z0.h-z1.h}, {z0.h-z1.h}, {z4.h-z5.h}
 [ ]*[0-9a-f]+:	c164b182 	fscale	{z2.h-z3.h}, {z2.h-z3.h}, {z4.h-z5.h}
-[ ]*[0-9a-f]+:	c176b194 	fscale	{z20.h-z21.h}, {z20.h-z21.h}, {z22.h-z23.h}
+[ ]*[0-9a-f]+:	c17eb19e 	fscale	{z30.h-z31.h}, {z30.h-z31.h}, {z30.h-z31.h}
 [ ]*[0-9a-f]+:	c164b980 	fscale	{z0.h-z3.h}, {z0.h-z3.h}, {z4.h-z7.h}
 [ ]*[0-9a-f]+:	c164b984 	fscale	{z4.h-z7.h}, {z4.h-z7.h}, {z4.h-z7.h}
 [ ]*[0-9a-f]+:	c168b980 	fscale	{z0.h-z3.h}, {z0.h-z3.h}, {z8.h-z11.h}
 [ ]*[0-9a-f]+:	c168b984 	fscale	{z4.h-z7.h}, {z4.h-z7.h}, {z8.h-z11.h}
-[ ]*[0-9a-f]+:	c178b994 	fscale	{z20.h-z23.h}, {z20.h-z23.h}, {z24.h-z27.h}
+[ ]*[0-9a-f]+:	c178b99c 	fscale	{z28.h-z31.h}, {z28.h-z31.h}, {z24.h-z27.h}
 [ ]*[0-9a-f]+:	c1a2b180 	fscale	{z0.s-z1.s}, {z0.s-z1.s}, {z2.s-z3.s}
 [ ]*[0-9a-f]+:	c1a2b182 	fscale	{z2.s-z3.s}, {z2.s-z3.s}, {z2.s-z3.s}
 [ ]*[0-9a-f]+:	c1a4b180 	fscale	{z0.s-z1.s}, {z0.s-z1.s}, {z4.s-z5.s}
 [ ]*[0-9a-f]+:	c1a4b182 	fscale	{z2.s-z3.s}, {z2.s-z3.s}, {z4.s-z5.s}
-[ ]*[0-9a-f]+:	c1b6b194 	fscale	{z20.s-z21.s}, {z20.s-z21.s}, {z22.s-z23.s}
+[ ]*[0-9a-f]+:	c1beb19e 	fscale	{z30.s-z31.s}, {z30.s-z31.s}, {z30.s-z31.s}
 [ ]*[0-9a-f]+:	c1a4b980 	fscale	{z0.s-z3.s}, {z0.s-z3.s}, {z4.s-z7.s}
 [ ]*[0-9a-f]+:	c1a4b984 	fscale	{z4.s-z7.s}, {z4.s-z7.s}, {z4.s-z7.s}
 [ ]*[0-9a-f]+:	c1a8b980 	fscale	{z0.s-z3.s}, {z0.s-z3.s}, {z8.s-z11.s}
 [ ]*[0-9a-f]+:	c1a8b984 	fscale	{z4.s-z7.s}, {z4.s-z7.s}, {z8.s-z11.s}
-[ ]*[0-9a-f]+:	c1b8b994 	fscale	{z20.s-z23.s}, {z20.s-z23.s}, {z24.s-z27.s}
+[ ]*[0-9a-f]+:	c1b8b99c 	fscale	{z28.s-z31.s}, {z28.s-z31.s}, {z24.s-z27.s}
 [ ]*[0-9a-f]+:	c1e2b180 	fscale	{z0.d-z1.d}, {z0.d-z1.d}, {z2.d-z3.d}
 [ ]*[0-9a-f]+:	c1e2b182 	fscale	{z2.d-z3.d}, {z2.d-z3.d}, {z2.d-z3.d}
 [ ]*[0-9a-f]+:	c1e4b180 	fscale	{z0.d-z1.d}, {z0.d-z1.d}, {z4.d-z5.d}
 [ ]*[0-9a-f]+:	c1e4b182 	fscale	{z2.d-z3.d}, {z2.d-z3.d}, {z4.d-z5.d}
-[ ]*[0-9a-f]+:	c1f6b194 	fscale	{z20.d-z21.d}, {z20.d-z21.d}, {z22.d-z23.d}
+[ ]*[0-9a-f]+:	c1feb19e 	fscale	{z30.d-z31.d}, {z30.d-z31.d}, {z30.d-z31.d}
 [ ]*[0-9a-f]+:	c1e4b980 	fscale	{z0.d-z3.d}, {z0.d-z3.d}, {z4.d-z7.d}
 [ ]*[0-9a-f]+:	c1e4b984 	fscale	{z4.d-z7.d}, {z4.d-z7.d}, {z4.d-z7.d}
 [ ]*[0-9a-f]+:	c1e8b980 	fscale	{z0.d-z3.d}, {z0.d-z3.d}, {z8.d-z11.d}
 [ ]*[0-9a-f]+:	c1e8b984 	fscale	{z4.d-z7.d}, {z4.d-z7.d}, {z8.d-z11.d}
-[ ]*[0-9a-f]+:	c1f8b994 	fscale	{z20.d-z23.d}, {z20.d-z23.d}, {z24.d-z27.d}
\ No newline at end of file
+[ ]*[0-9a-f]+:	c1f8b99c 	fscale	{z28.d-z31.d}, {z28.d-z31.d}, {z24.d-z27.d}
\ No newline at end of file
diff --git a/gas/testsuite/gas/aarch64/sme2-fp8.s b/gas/testsuite/gas/aarch64/sme2-fp8.s
index ca2a4b4..6bcfbce 100644
--- a/gas/testsuite/gas/aarch64/sme2-fp8.s
+++ b/gas/testsuite/gas/aarch64/sme2-fp8.s
@@ -1,12 +1,11 @@
-	/* sme-fp8.s Test file for AArch64 SME 8-bit floating-point
+	/* sme2-fp8.s Test file for AArch64 SME 8-bit floating-point
 	vector instructions.  */
 
 	.macro cvt_pat1, op
-	\op	{z0.h-z1.h}, z2.b
+	\op	{z0.h-z1.h}, z3.b
 	\op	{z0.h-z1.h}, z4.b
-	\op	{z2.h-z3.h}, z2.b
 	\op	{z2.h-z3.h}, z4.b
-	\op	{z28.h-z29.h}, z30.b
+	\op	{z28.h-z29.h}, z31.b
 	.endm
 
 	/* Multi-vector floating-point convert from 8-bit floating-point.  */
@@ -28,11 +27,10 @@
 	cvt_pat1 f2cvtl
 
 	.macro cvt_pat2, op
-	\op	z2.b, {z0.h-z1.h}
+	\op	z3.b, {z0.h-z1.h}
 	\op	z4.b, {z0.h-z1.h}
-	\op	z2.b, {z2.h-z3.h}
 	\op	z4.b, {z2.h-z3.h}
-	\op	z30.b, {z28.h-z29.h}
+	\op	z31.b, {z28.h-z29.h}
 	.endm
 
 	/* Multi-vector floating-point convert to packed 8-bit floating-point
@@ -45,11 +43,11 @@
 	cvt_pat2 fcvt
 
 	.macro cvt_pat3, op
-	\op	z4.b, {z0.s-z3.s}
+	\op	z7.b, {z0.s-z3.s}
 	\op	z8.b, {z0.s-z3.s}
-	\op	z4.b, {z4.s-z7.s}
-	\op	z8.b, {z4.s-z7.s}
-	\op	z28.b, {z24.s-z27.s}
+	\op	z1.b, {z4.s-z7.s}
+	\op	z2.b, {z4.s-z7.s}
+	\op	z31.b, {z24.s-z27.s}
 	.endm
 
 	/* Multi-vector floating-point convert from single-precision to
@@ -65,13 +63,13 @@
 	fscale { z2.\w - z3.\w }, { z2.\w - z3.\w }, z2.\w
 	fscale { z0.\w - z1.\w }, { z0.\w - z1.\w }, z4.\w
 	fscale { z2.\w - z3.\w }, { z2.\w - z3.\w }, z4.\w
-	fscale { z24.\w-z25.\w }, { z24.\w-z25.\w }, z15.\w
+	fscale { z30.\w-z31.\w }, { z30.\w-z31.\w }, z15.\w
 	/* quad.  */
 	fscale { z0.\w-z3.\w }, { z0.\w-z3.\w }, z4.\w
 	fscale { z4.\w-z7.\w }, { z4.\w-z7.\w }, z4.\w
 	fscale { z0.\w-z3.\w }, { z0.\w-z3.\w }, z8.\w
 	fscale { z4.\w-z7.\w }, { z4.\w-z7.\w }, z8.\w
-	fscale { z24.\w-z27.\w }, { z24.\w-z27.\w }, z15.\w
+	fscale { z28.\w-z31.\w }, { z28.\w-z31.\w }, z15.\w
 	.endm
 
 	/* Multi-vector floating-point adjust exponent by vector.
@@ -91,13 +89,13 @@
 	fscale { z2.\w - z3.\w }, { z2.\w - z3.\w }, { z2.\w-z3.\w }
 	fscale { z0.\w - z1.\w }, { z0.\w - z1.\w }, { z4.\w-z5.\w }
 	fscale { z2.\w - z3.\w }, { z2.\w - z3.\w }, { z4.\w-z5.\w }
-	fscale { z20.\w-z21.\w }, { z20.\w-z21.\w }, { z22.\w-z23.\w }
+	fscale { z30.\w-z31.\w }, { z30.\w-z31.\w }, { z30.\w-z31.\w }
 	/* quad.  */
 	fscale { z0.\w-z3.\w }, { z0.\w-z3.\w }, { z4.\w-z7.\w }
 	fscale { z4.\w-z7.\w }, { z4.\w-z7.\w }, { z4.\w-z7.\w }
 	fscale { z0.\w-z3.\w }, { z0.\w-z3.\w }, { z8.\w-z11.\w }
 	fscale { z4.\w-z7.\w }, { z4.\w-z7.\w }, { z8.\w-z11.\w }
-	fscale { z20.\w-z23.\w }, { z20.\w-z23.\w }, { z24.\w-z27.\w }
+	fscale { z28.\w-z31.\w }, { z28.\w-z31.\w }, { z24.\w-z27.\w }
 	.endm
 
 	/* Multi-vector floating-point adjust exponent.
diff --git a/gas/testsuite/gas/aarch64/sve2-fp8-dump b/gas/testsuite/gas/aarch64/sve2-fp8-dump
index 570ff9c..1ea2c35 100644
--- a/gas/testsuite/gas/aarch64/sve2-fp8-dump
+++ b/gas/testsuite/gas/aarch64/sve2-fp8-dump
@@ -3,51 +3,43 @@
 Disassembly of section \.text:
 
 0+ <.*>:
-[ ]*[0-9a-f]+:	65083800 	bf1cvt	z0.h, z0.b
 [ ]*[0-9a-f]+:	65083801 	bf1cvt	z1.h, z0.b
 [ ]*[0-9a-f]+:	65083820 	bf1cvt	z0.h, z1.b
 [ ]*[0-9a-f]+:	65083bfe 	bf1cvt	z30.h, z31.b
-[ ]*[0-9a-f]+:	65083c00 	bf2cvt	z0.h, z0.b
 [ ]*[0-9a-f]+:	65083c01 	bf2cvt	z1.h, z0.b
 [ ]*[0-9a-f]+:	65083c20 	bf2cvt	z0.h, z1.b
 [ ]*[0-9a-f]+:	65083ffe 	bf2cvt	z30.h, z31.b
-[ ]*[0-9a-f]+:	65093800 	bf1cvtlt	z0.h, z0.b
 [ ]*[0-9a-f]+:	65093801 	bf1cvtlt	z1.h, z0.b
 [ ]*[0-9a-f]+:	65093820 	bf1cvtlt	z0.h, z1.b
 [ ]*[0-9a-f]+:	65093bfe 	bf1cvtlt	z30.h, z31.b
-[ ]*[0-9a-f]+:	65093c00 	bf2cvtlt	z0.h, z0.b
 [ ]*[0-9a-f]+:	65093c01 	bf2cvtlt	z1.h, z0.b
 [ ]*[0-9a-f]+:	65093c20 	bf2cvtlt	z0.h, z1.b
 [ ]*[0-9a-f]+:	65093ffe 	bf2cvtlt	z30.h, z31.b
-[ ]*[0-9a-f]+:	65083000 	f1cvt	z0.h, z0.b
 [ ]*[0-9a-f]+:	65083001 	f1cvt	z1.h, z0.b
 [ ]*[0-9a-f]+:	65083020 	f1cvt	z0.h, z1.b
 [ ]*[0-9a-f]+:	650833fe 	f1cvt	z30.h, z31.b
-[ ]*[0-9a-f]+:	65083400 	f2cvt	z0.h, z0.b
 [ ]*[0-9a-f]+:	65083401 	f2cvt	z1.h, z0.b
 [ ]*[0-9a-f]+:	65083420 	f2cvt	z0.h, z1.b
 [ ]*[0-9a-f]+:	650837fe 	f2cvt	z30.h, z31.b
-[ ]*[0-9a-f]+:	65093000 	f1cvtlt	z0.h, z0.b
 [ ]*[0-9a-f]+:	65093001 	f1cvtlt	z1.h, z0.b
 [ ]*[0-9a-f]+:	65093020 	f1cvtlt	z0.h, z1.b
 [ ]*[0-9a-f]+:	650933fe 	f1cvtlt	z30.h, z31.b
-[ ]*[0-9a-f]+:	65093400 	f2cvtlt	z0.h, z0.b
 [ ]*[0-9a-f]+:	65093401 	f2cvtlt	z1.h, z0.b
 [ ]*[0-9a-f]+:	65093420 	f2cvtlt	z0.h, z1.b
 [ ]*[0-9a-f]+:	650937fe 	f2cvtlt	z30.h, z31.b
 [ ]*[0-9a-f]+:	650a3800 	bfcvtn	z0.b, {z0.h-z1.h}
-[ ]*[0-9a-f]+:	650a3801 	bfcvtn	z1.b, {z0.h-z1.h}
+[ ]*[0-9a-f]+:	650a3804 	bfcvtn	z4.b, {z0.h-z1.h}
 [ ]*[0-9a-f]+:	650a3840 	bfcvtn	z0.b, {z2.h-z3.h}
-[ ]*[0-9a-f]+:	650a3bdd 	bfcvtn	z29.b, {z30.h-z31.h}
+[ ]*[0-9a-f]+:	650a3b9b 	bfcvtn	z27.b, {z28.h-z29.h}
 [ ]*[0-9a-f]+:	650a3000 	fcvtn	z0.b, {z0.h-z1.h}
-[ ]*[0-9a-f]+:	650a3001 	fcvtn	z1.b, {z0.h-z1.h}
+[ ]*[0-9a-f]+:	650a3004 	fcvtn	z4.b, {z0.h-z1.h}
 [ ]*[0-9a-f]+:	650a3040 	fcvtn	z0.b, {z2.h-z3.h}
-[ ]*[0-9a-f]+:	650a33dd 	fcvtn	z29.b, {z30.h-z31.h}
+[ ]*[0-9a-f]+:	650a339b 	fcvtn	z27.b, {z28.h-z29.h}
 [ ]*[0-9a-f]+:	650a3400 	fcvtnb	z0.b, {z0.s-z1.s}
-[ ]*[0-9a-f]+:	650a3401 	fcvtnb	z1.b, {z0.s-z1.s}
+[ ]*[0-9a-f]+:	650a3404 	fcvtnb	z4.b, {z0.s-z1.s}
 [ ]*[0-9a-f]+:	650a3440 	fcvtnb	z0.b, {z2.s-z3.s}
-[ ]*[0-9a-f]+:	650a37dd 	fcvtnb	z29.b, {z30.s-z31.s}
+[ ]*[0-9a-f]+:	650a379b 	fcvtnb	z27.b, {z28.s-z29.s}
 [ ]*[0-9a-f]+:	650a3c00 	fcvtnt	z0.b, {z0.s-z1.s}
-[ ]*[0-9a-f]+:	650a3c01 	fcvtnt	z1.b, {z0.s-z1.s}
+[ ]*[0-9a-f]+:	650a3c04 	fcvtnt	z4.b, {z0.s-z1.s}
 [ ]*[0-9a-f]+:	650a3c40 	fcvtnt	z0.b, {z2.s-z3.s}
-[ ]*[0-9a-f]+:	650a3fdd 	fcvtnt	z29.b, {z30.s-z31.s}
\ No newline at end of file
+[ ]*[0-9a-f]+:	650a3f9b 	fcvtnt	z27.b, {z28.s-z29.s}
diff --git a/gas/testsuite/gas/aarch64/sve2-fp8.s b/gas/testsuite/gas/aarch64/sve2-fp8.s
index 62dee73..fa371b9 100644
--- a/gas/testsuite/gas/aarch64/sve2-fp8.s
+++ b/gas/testsuite/gas/aarch64/sve2-fp8.s
@@ -2,7 +2,6 @@
 	instructions.  */
 
 	.macro cvt_pat1, op
-	\op	z0.h, z0.b
 	\op	z1.h, z0.b
 	\op	z0.h, z1.b
 	\op	z30.h, z31.b
@@ -10,9 +9,9 @@
 
 	.macro cvt_pat2, op, width
 	\op	z0.b, { z0.\width - z1.\width }
-	\op	z1.b, { z0.\width - z1.\width }
+	\op	z4.b, { z0.\width - z1.\width }
 	\op	z0.b, { z2.\width - z3.\width }
-	\op	z29.b, { z30.\width - z31.\width }
+	\op	z27.b, { z28.\width - z29.\width }
 	.endm
 
 	/* 8-bit floating-point convert to BFloat16 (top/bottom) with scaling by