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RISC-V: Accept constant operands in la and lla 

opcodes/
	PR gas/23305
	* riscv-opc.c (riscv_opcodes): Use new format specifier 'B' for
	la and lla.

gas/
	PR gas/23305
	* config/tc-riscv.c (riscv_ip): Add format specifier 'B' for
	constants and symbols.
	* testsuite/gas/riscv/lla32.d: New file.
	* testsuite/gas/riscv/lla32.s: Likewise.
	* testsuite/gas/riscv/lla64-fail.d: Likewise.
	* testsuite/gas/riscv/lla64-fail.l: Likewise.
	* testsuite/gas/riscv/lla64-fail.s: Likewise.
	* testsuite/gas/riscv/lla64.d: Likewise.
	* testsuite/gas/riscv/lla64.s: Likewise.
This commit is contained in:
Sebastian Huber 2018-06-19 07:12:48 +02:00
parent 4ef2c1b90e
commit 160d1b3d74
11 changed files with 111 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
gas/ChangeLog
View File

@ -1,3 +1,16 @@
2018-06-20 Sebastian Huber <sebastian.huber@embedded-brains.de>
PR gas/23305
* config/tc-riscv.c (riscv_ip): Add format specifier 'B' for
constants and symbols.
* testsuite/gas/riscv/lla32.d: New file.
* testsuite/gas/riscv/lla32.s: Likewise.
* testsuite/gas/riscv/lla64-fail.d: Likewise.
* testsuite/gas/riscv/lla64-fail.l: Likewise.
* testsuite/gas/riscv/lla64-fail.s: Likewise.
* testsuite/gas/riscv/lla64.d: Likewise.
* testsuite/gas/riscv/lla64.s: Likewise.
2018-06-19 Simon Marchi <simon.marchi@ericsson.com>
* Makefile.am (AUTOMAKE_OPTIONS): Remove 1.11, add subdir-objects.

11
gas/config/tc-riscv.c
View File

@ -1935,6 +1935,17 @@ rvc_lui:
s = expr_end;
continue;
case 'B':
my_getExpression (imm_expr, s);
normalize_constant_expr (imm_expr);
/* The 'B' format specifier must be a symbol or a constant. */
if (imm_expr->X_op != O_symbol && imm_expr->X_op != O_constant)
break;
if (imm_expr->X_op == O_symbol)
*imm_reloc = BFD_RELOC_32;
s = expr_end;
continue;
case 'j': /* Sign-extended immediate. */
*imm_reloc = BFD_RELOC_RISCV_LO12_I;
p = percent_op_itype;

19
gas/testsuite/gas/riscv/lla32.d Normal file
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@ -0,0 +1,19 @@
#as: -march=rv32i -mabi=ilp32
#objdump: -dr
.*: file format elf32-littleriscv
Disassembly of section .text:
0+000 <.text>:
0: 00100513 li a0,1
4: 00001537 lui a0,0x1
8: 00001537 lui a0,0x1
c: 00150513 addi a0,a0,1 # 1001 <c>
10: 00001537 lui a0,0x1
14: fff50513 addi a0,a0,-1 # fff <d>
18: 80000537 lui a0,0x80000
1c: fff50513 addi a0,a0,-1 # 7fffffff <h\+0x80000000>
20: 00000513 li a0,0
24: fff00513 li a0,-1

15
gas/testsuite/gas/riscv/lla32.s Normal file
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@ -0,0 +1,15 @@
.set a, 0x1
.set b, 0x1000
.set c, 0x1001
.set d, 0xfff
.set e, 0x7fffffff
.set g, 0x0
.set h, 0xffffffff
.text
lla a0, a
lla a0, b
lla a0, c
lla a0, d
lla a0, e
lla a0, g
lla a0, h

3
gas/testsuite/gas/riscv/lla64-fail.d Normal file
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@ -0,0 +1,3 @@
#as: -march=rv64i -mabi=lp64
#source: lla64-fail.s
#error-output: lla64-fail.l

2
gas/testsuite/gas/riscv/lla64-fail.l Normal file
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@ -0,0 +1,2 @@
.*: Assembler messages:
.*: Error: offset too large

3
gas/testsuite/gas/riscv/lla64-fail.s Normal file
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@ -0,0 +1,3 @@
.set a, 0xffffffff
.text
lla a0, a

20
gas/testsuite/gas/riscv/lla64.d Normal file
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@ -0,0 +1,20 @@
#as: -march=rv64i -mabi=lp64
#objdump: -dr
.*: file format elf64-littleriscv
Disassembly of section .text:
0+000 <.text>:
0: 0010051b addiw a0,zero,1
4: 00001537 lui a0,0x1
8: 00001537 lui a0,0x1
c: 0015051b addiw a0,a0,1
10: 00001537 lui a0,0x1
14: fff5051b addiw a0,a0,-1
18: 80000537 lui a0,0x80000
1c: fff5051b addiw a0,a0,-1
20: 0000051b sext.w a0,zero
24: fff0051b addiw a0,zero,-1
28: 80000537 lui a0,0x80000

17
gas/testsuite/gas/riscv/lla64.s Normal file
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@ -0,0 +1,17 @@
.set a, 0x1
.set b, 0x1000
.set c, 0x1001
.set d, 0xfff
.set e, 0x7fffffff
.set g, 0x0
.set h, 0xffffffffffffffff
.set i, 0xffffffff80000000
.text
lla a0, a
lla a0, b
lla a0, c
lla a0, d
lla a0, e
lla a0, g
lla a0, h
lla a0, i

6
opcodes/ChangeLog
View File

@ -1,3 +1,9 @@
2018-06-20 Sebastian Huber <sebastian.huber@embedded-brains.de>
PR gas/23305
* riscv-opc.c (riscv_opcodes): Use new format specifier 'B' for
la and lla.
2018-06-19 Simon Marchi <simon.marchi@ericsson.com>
* Makefile.am (AUTOMAKE_OPTIONS): Remove 1.11.

4
opcodes/riscv-opc.c
View File

@ -278,8 +278,8 @@ const struct riscv_opcode riscv_opcodes[] =
applied to an add instruction, for relaxation to use. */
{"add", "I", "d,s,t,0",MATCH_ADD, MASK_ADD, match_opcode, 0 },
{"add", "I", "d,s,j", MATCH_ADDI, MASK_ADDI, match_opcode, INSN_ALIAS },
{"la", "I", "d,A", 0, (int) M_LA, match_never, INSN_MACRO },
{"lla", "I", "d,A", 0, (int) M_LLA, match_never, INSN_MACRO },
{"la", "I", "d,B", 0, (int) M_LA, match_never, INSN_MACRO },
{"lla", "I", "d,B", 0, (int) M_LLA, match_never, INSN_MACRO },
{"la.tls.gd", "I", "d,A", 0, (int) M_LA_TLS_GD, match_never, INSN_MACRO },
{"la.tls.ie", "I", "d,A", 0, (int) M_LA_TLS_IE, match_never, INSN_MACRO },
{"neg", "I", "d,t", MATCH_SUB, MASK_SUB | MASK_RS1, match_opcode, INSN_ALIAS }, /* sub 0 */