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MIPS/gas: Reject $0 as source register for DAUI instruction

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The MIPS64R6 TRM requires that the source register for DAUI
not be r0.

[1] "MIPS Architecture for Programmers Volume II-A: The MIPS64
    Instruction Set Manual", Imagination Technologies Ltd., Document
    Number: MD00087, Revision 6.06, December 15, 2016, Section 3.2
    "Alphabetical List of Instructions", pp. 67-68.

gas/
	* testsuite/gas/mips/r6-branch-constraints.s: Rename to ...
	* testsuite/gas/mips/r6-reg-constraints.s: this and add test
	case for DAUI.
	* testsuite/gas/mips/r6-branch-constraints.l: Rename to ...
	* testsuite/gas/mips/r6-reg-constraints.l: this and add test
	for DAUI.
	* testsuite/gas/mips/mips.exp: Rename test from
	r6-branch-constraints to r6-reg-constraints.

opcodes/
	* mips-opc.c (mips_builtin_opcodes): Change source register
	constraint for DAUI.
This commit is contained in:
Faraz Shahbazker
2019-05-13 17:19:37 -07:00
parent 3734320dc0
commit cd4797ee05
6 changed files with 20 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
gas/ChangeLog
View File

@ -1,3 +1,14 @@
2019-05-21 Faraz Shahbazker <fshahbazker@wavecomp.com>
* testsuite/gas/mips/r6-branch-constraints.s: Rename to ...
* testsuite/gas/mips/r6-reg-constraints.s: this and add test
case for DAUI.
* testsuite/gas/mips/r6-branch-constraints.l: Rename to ...
* testsuite/gas/mips/r6-reg-constraints.l: this and add test
for DAUI.
* testsuite/gas/mips/mips.exp: Rename test from
r6-branch-constraints to r6-reg-constraints.
2019-05-21 Andre Vieira <andre.simoesdiasvieira@arm.com>
PR 24559

2
gas/testsuite/gas/mips/mips.exp
View File

@ -2074,7 +2074,7 @@ if { [istarget mips*-*-vxworks*] } {
run_list_test_arches "r6-removed" "-32" [mips_arch_list_matching mips32r6]
run_list_test_arches "r6-64-removed" [mips_arch_list_matching mips64r6]
run_list_test_arches "r6-branch-constraints" "-32" \
run_list_test_arches "r6-reg-constraints" "-32" \
[mips_arch_list_matching mips32r6]
run_dump_test_arches "crc" [mips_arch_list_matching mips32r6]

1
gas/testsuite/gas/mips/r6-branch-constraints.l → gas/testsuite/gas/mips/r6-reg-constraints.l
View File

@ -23,3 +23,4 @@
.*:23: Error: the source register must not be \$0 `bnec \$0,\$2,.'
.*:24: Error: invalid operands `bnec \$2,\$0,.'
.*:25: Error: invalid operands `bnec \$2,\$2,.'
.*:26: Error: the source register must not be \$0 `daui \$2,\$0,1'

1
gas/testsuite/gas/mips/r6-branch-constraints.s → gas/testsuite/gas/mips/r6-reg-constraints.s
View File

@ -23,3 +23,4 @@
bnec $0,$2,.
bnec $2,$0,.
bnec $2,$2,.
daui $2,$0,1

5
opcodes/ChangeLog
View File

@ -1,3 +1,8 @@
2019-05-21 Faraz Shahbazker <fshahbazker@wavecomp.com>
* mips-opc.c (mips_builtin_opcodes): Change source register
constraint for DAUI.
2019-05-20 Nick Clifton <nickc@redhat.com>
* po/fr.po: Updated French translation.

2
opcodes/mips-opc.c
View File

@ -3271,7 +3271,7 @@ const struct mips_opcode mips_builtin_opcodes[] =
/* MIPS r6. */
{"aui", "t,s,u", 0x3c000000, 0xfc000000, WR_1|RD_2, 0, I37, 0, 0 },
{"auipc", "s,u", 0xec1e0000, 0xfc1f0000, WR_1, RD_pc, I37, 0, 0 },
{"daui", "t,s,u", 0x74000000, 0xfc000000, WR_1|RD_2, 0, I37, 0, 0 },
{"daui", "t,-s,u", 0x74000000, 0xfc000000, WR_1|RD_2, 0, I37, 0, 0 },
{"dahi", "s,-d,u", 0x04060000, 0xfc1f0000, MOD_1, 0, I69, 0, 0 },
{"dati", "s,-d,u", 0x041e0000, 0xfc1f0000, MOD_1, 0, I69, 0, 0 },