RISC-V: Add testcase for DWARF register numbers

Although it had csr-dw-regnums.d (for CSRs), it didn't have DWARF register
number test for GPRs/FPRs.

This commit adds dw-regnums.{s,d} to test such registers.

gas/ChangeLog:

	* testsuite/gas/riscv/dw-regnums.s: New DWARF register number test
	for GPRs/FPRs.
	* testsuite/gas/riscv/dw-regnums.d: Likewise.

2 files changed, 296 insertions, 0 deletions

diff --git a/gas/testsuite/gas/riscv/dw-regnums.d b/gas/testsuite/gas/riscv/dw-regnums.d
new file mode 100644
index 0000000..5f1c879
--- /dev/null
+++ b/gas/testsuite/gas/riscv/dw-regnums.d
@@ -0,0 +1,148 @@
+#as: -march=rv32if
+#objdump: --dwarf=frames
+
+
+.*:     file format elf.*-.*riscv
+
+Contents of the .* section:
+
+
+00000000 [a-zA-Z0-9]+ [a-zA-Z0-9]+ CIE
+  Version:               .*
+  Augmentation:          .*
+  Code alignment factor: .*
+  Data alignment factor: .*
+  Return address column: .*
+  Augmentation data:     .*
+#...
+[a-zA-Z0-9]+ [a-zA-Z0-9]+ [a-zA-Z0-9]+ FDE cie=00000000 pc=[a-zA-Z0-9]+\.\.[a-zA-Z0-9]+
+  DW_CFA_advance_loc: 4 to 0+0000020
+  DW_CFA_offset_extended_sf: r0 \(zero\) at cfa\+4
+  DW_CFA_offset_extended_sf: r1 \(ra\) at cfa\+8
+  DW_CFA_offset_extended_sf: r2 \(sp\) at cfa\+12
+  DW_CFA_offset_extended_sf: r3 \(gp\) at cfa\+16
+  DW_CFA_offset_extended_sf: r4 \(tp\) at cfa\+20
+  DW_CFA_offset_extended_sf: r5 \(t0\) at cfa\+24
+  DW_CFA_offset_extended_sf: r6 \(t1\) at cfa\+28
+  DW_CFA_offset_extended_sf: r7 \(t2\) at cfa\+32
+  DW_CFA_offset_extended_sf: r8 \(s0\) at cfa\+36
+  DW_CFA_offset_extended_sf: r9 \(s1\) at cfa\+40
+  DW_CFA_offset_extended_sf: r10 \(a0\) at cfa\+44
+  DW_CFA_offset_extended_sf: r11 \(a1\) at cfa\+48
+  DW_CFA_offset_extended_sf: r12 \(a2\) at cfa\+52
+  DW_CFA_offset_extended_sf: r13 \(a3\) at cfa\+56
+  DW_CFA_offset_extended_sf: r14 \(a4\) at cfa\+60
+  DW_CFA_offset_extended_sf: r15 \(a5\) at cfa\+64
+  DW_CFA_offset_extended_sf: r16 \(a6\) at cfa\+68
+  DW_CFA_offset_extended_sf: r17 \(a7\) at cfa\+72
+  DW_CFA_offset_extended_sf: r18 \(s2\) at cfa\+76
+  DW_CFA_offset_extended_sf: r19 \(s3\) at cfa\+80
+  DW_CFA_offset_extended_sf: r20 \(s4\) at cfa\+84
+  DW_CFA_offset_extended_sf: r21 \(s5\) at cfa\+88
+  DW_CFA_offset_extended_sf: r22 \(s6\) at cfa\+92
+  DW_CFA_offset_extended_sf: r23 \(s7\) at cfa\+96
+  DW_CFA_offset_extended_sf: r24 \(s8\) at cfa\+100
+  DW_CFA_offset_extended_sf: r25 \(s9\) at cfa\+104
+  DW_CFA_offset_extended_sf: r26 \(s10\) at cfa\+108
+  DW_CFA_offset_extended_sf: r27 \(s11\) at cfa\+112
+  DW_CFA_offset_extended_sf: r28 \(t3\) at cfa\+116
+  DW_CFA_offset_extended_sf: r29 \(t4\) at cfa\+120
+  DW_CFA_offset_extended_sf: r30 \(t5\) at cfa\+124
+  DW_CFA_offset_extended_sf: r31 \(t6\) at cfa\+128
+  DW_CFA_offset_extended_sf: r0 \(zero\) at cfa\+4
+  DW_CFA_offset_extended_sf: r1 \(ra\) at cfa\+8
+  DW_CFA_offset_extended_sf: r2 \(sp\) at cfa\+12
+  DW_CFA_offset_extended_sf: r3 \(gp\) at cfa\+16
+  DW_CFA_offset_extended_sf: r4 \(tp\) at cfa\+20
+  DW_CFA_offset_extended_sf: r5 \(t0\) at cfa\+24
+  DW_CFA_offset_extended_sf: r6 \(t1\) at cfa\+28
+  DW_CFA_offset_extended_sf: r7 \(t2\) at cfa\+32
+  DW_CFA_offset_extended_sf: r8 \(s0\) at cfa\+36
+  DW_CFA_offset_extended_sf: r9 \(s1\) at cfa\+40
+  DW_CFA_offset_extended_sf: r10 \(a0\) at cfa\+44
+  DW_CFA_offset_extended_sf: r11 \(a1\) at cfa\+48
+  DW_CFA_offset_extended_sf: r12 \(a2\) at cfa\+52
+  DW_CFA_offset_extended_sf: r13 \(a3\) at cfa\+56
+  DW_CFA_offset_extended_sf: r14 \(a4\) at cfa\+60
+  DW_CFA_offset_extended_sf: r15 \(a5\) at cfa\+64
+  DW_CFA_offset_extended_sf: r16 \(a6\) at cfa\+68
+  DW_CFA_offset_extended_sf: r17 \(a7\) at cfa\+72
+  DW_CFA_offset_extended_sf: r18 \(s2\) at cfa\+76
+  DW_CFA_offset_extended_sf: r19 \(s3\) at cfa\+80
+  DW_CFA_offset_extended_sf: r20 \(s4\) at cfa\+84
+  DW_CFA_offset_extended_sf: r21 \(s5\) at cfa\+88
+  DW_CFA_offset_extended_sf: r22 \(s6\) at cfa\+92
+  DW_CFA_offset_extended_sf: r23 \(s7\) at cfa\+96
+  DW_CFA_offset_extended_sf: r24 \(s8\) at cfa\+100
+  DW_CFA_offset_extended_sf: r25 \(s9\) at cfa\+104
+  DW_CFA_offset_extended_sf: r26 \(s10\) at cfa\+108
+  DW_CFA_offset_extended_sf: r27 \(s11\) at cfa\+112
+  DW_CFA_offset_extended_sf: r28 \(t3\) at cfa\+116
+  DW_CFA_offset_extended_sf: r29 \(t4\) at cfa\+120
+  DW_CFA_offset_extended_sf: r30 \(t5\) at cfa\+124
+  DW_CFA_offset_extended_sf: r31 \(t6\) at cfa\+128
+  DW_CFA_offset_extended_sf: r32 \(ft0\) at cfa\+132
+  DW_CFA_offset_extended_sf: r33 \(ft1\) at cfa\+136
+  DW_CFA_offset_extended_sf: r34 \(ft2\) at cfa\+140
+  DW_CFA_offset_extended_sf: r35 \(ft3\) at cfa\+144
+  DW_CFA_offset_extended_sf: r36 \(ft4\) at cfa\+148
+  DW_CFA_offset_extended_sf: r37 \(ft5\) at cfa\+152
+  DW_CFA_offset_extended_sf: r38 \(ft6\) at cfa\+156
+  DW_CFA_offset_extended_sf: r39 \(ft7\) at cfa\+160
+  DW_CFA_offset_extended_sf: r40 \(fs0\) at cfa\+164
+  DW_CFA_offset_extended_sf: r41 \(fs1\) at cfa\+168
+  DW_CFA_offset_extended_sf: r42 \(fa0\) at cfa\+172
+  DW_CFA_offset_extended_sf: r43 \(fa1\) at cfa\+176
+  DW_CFA_offset_extended_sf: r44 \(fa2\) at cfa\+180
+  DW_CFA_offset_extended_sf: r45 \(fa3\) at cfa\+184
+  DW_CFA_offset_extended_sf: r46 \(fa4\) at cfa\+188
+  DW_CFA_offset_extended_sf: r47 \(fa5\) at cfa\+192
+  DW_CFA_offset_extended_sf: r48 \(fa6\) at cfa\+196
+  DW_CFA_offset_extended_sf: r49 \(fa7\) at cfa\+200
+  DW_CFA_offset_extended_sf: r50 \(fs2\) at cfa\+204
+  DW_CFA_offset_extended_sf: r51 \(fs3\) at cfa\+208
+  DW_CFA_offset_extended_sf: r52 \(fs4\) at cfa\+212
+  DW_CFA_offset_extended_sf: r53 \(fs5\) at cfa\+216
+  DW_CFA_offset_extended_sf: r54 \(fs6\) at cfa\+220
+  DW_CFA_offset_extended_sf: r55 \(fs7\) at cfa\+224
+  DW_CFA_offset_extended_sf: r56 \(fs8\) at cfa\+228
+  DW_CFA_offset_extended_sf: r57 \(fs9\) at cfa\+232
+  DW_CFA_offset_extended_sf: r58 \(fs10\) at cfa\+236
+  DW_CFA_offset_extended_sf: r59 \(fs11\) at cfa\+240
+  DW_CFA_offset_extended_sf: r60 \(ft8\) at cfa\+244
+  DW_CFA_offset_extended_sf: r61 \(ft9\) at cfa\+248
+  DW_CFA_offset_extended_sf: r62 \(ft10\) at cfa\+252
+  DW_CFA_offset_extended_sf: r63 \(ft11\) at cfa\+256
+  DW_CFA_offset_extended_sf: r32 \(ft0\) at cfa\+132
+  DW_CFA_offset_extended_sf: r33 \(ft1\) at cfa\+136
+  DW_CFA_offset_extended_sf: r34 \(ft2\) at cfa\+140
+  DW_CFA_offset_extended_sf: r35 \(ft3\) at cfa\+144
+  DW_CFA_offset_extended_sf: r36 \(ft4\) at cfa\+148
+  DW_CFA_offset_extended_sf: r37 \(ft5\) at cfa\+152
+  DW_CFA_offset_extended_sf: r38 \(ft6\) at cfa\+156
+  DW_CFA_offset_extended_sf: r39 \(ft7\) at cfa\+160
+  DW_CFA_offset_extended_sf: r40 \(fs0\) at cfa\+164
+  DW_CFA_offset_extended_sf: r41 \(fs1\) at cfa\+168
+  DW_CFA_offset_extended_sf: r42 \(fa0\) at cfa\+172
+  DW_CFA_offset_extended_sf: r43 \(fa1\) at cfa\+176
+  DW_CFA_offset_extended_sf: r44 \(fa2\) at cfa\+180
+  DW_CFA_offset_extended_sf: r45 \(fa3\) at cfa\+184
+  DW_CFA_offset_extended_sf: r46 \(fa4\) at cfa\+188
+  DW_CFA_offset_extended_sf: r47 \(fa5\) at cfa\+192
+  DW_CFA_offset_extended_sf: r48 \(fa6\) at cfa\+196
+  DW_CFA_offset_extended_sf: r49 \(fa7\) at cfa\+200
+  DW_CFA_offset_extended_sf: r50 \(fs2\) at cfa\+204
+  DW_CFA_offset_extended_sf: r51 \(fs3\) at cfa\+208
+  DW_CFA_offset_extended_sf: r52 \(fs4\) at cfa\+212
+  DW_CFA_offset_extended_sf: r53 \(fs5\) at cfa\+216
+  DW_CFA_offset_extended_sf: r54 \(fs6\) at cfa\+220
+  DW_CFA_offset_extended_sf: r55 \(fs7\) at cfa\+224
+  DW_CFA_offset_extended_sf: r56 \(fs8\) at cfa\+228
+  DW_CFA_offset_extended_sf: r57 \(fs9\) at cfa\+232
+  DW_CFA_offset_extended_sf: r58 \(fs10\) at cfa\+236
+  DW_CFA_offset_extended_sf: r59 \(fs11\) at cfa\+240
+  DW_CFA_offset_extended_sf: r60 \(ft8\) at cfa\+244
+  DW_CFA_offset_extended_sf: r61 \(ft9\) at cfa\+248
+  DW_CFA_offset_extended_sf: r62 \(ft10\) at cfa\+252
+  DW_CFA_offset_extended_sf: r63 \(ft11\) at cfa\+256
+#...
diff --git a/gas/testsuite/gas/riscv/dw-regnums.s b/gas/testsuite/gas/riscv/dw-regnums.s
new file mode 100644
index 0000000..6686e8b
--- /dev/null
+++ b/gas/testsuite/gas/riscv/dw-regnums.s
@@ -0,0 +1,148 @@
+# Check that CFI directives can accept all of the register names (including
+# aliases).  The results for this test also ensures that the DWARF
+# register numbers for the GPRs/FPRs registers shouldn't change.
+
+	.text
+	.global _start
+_start:
+	.cfi_startproc
+	nop
+
+	# GPRs (ABI)
+	.cfi_offset zero,  4
+	.cfi_offset ra,    8
+	.cfi_offset sp,   12
+	.cfi_offset gp,   16
+	.cfi_offset tp,   20
+	.cfi_offset t0,   24
+	.cfi_offset t1,   28
+	.cfi_offset t2,   32
+	.cfi_offset s0,   36
+	.cfi_offset s1,   40
+	.cfi_offset a0,   44
+	.cfi_offset a1,   48
+	.cfi_offset a2,   52
+	.cfi_offset a3,   56
+	.cfi_offset a4,   60
+	.cfi_offset a5,   64
+	.cfi_offset a6,   68
+	.cfi_offset a7,   72
+	.cfi_offset s2,   76
+	.cfi_offset s3,   80
+	.cfi_offset s4,   84
+	.cfi_offset s5,   88
+	.cfi_offset s6,   92
+	.cfi_offset s7,   96
+	.cfi_offset s8,  100
+	.cfi_offset s9,  104
+	.cfi_offset s10, 108
+	.cfi_offset s11, 112
+	.cfi_offset t3,  116
+	.cfi_offset t4,  120
+	.cfi_offset t5,  124
+	.cfi_offset t6,  128
+
+	# GPRs (Numeric)
+	.cfi_offset x0,    4
+	.cfi_offset x1,    8
+	.cfi_offset x2,   12
+	.cfi_offset x3,   16
+	.cfi_offset x4,   20
+	.cfi_offset x5,   24
+	.cfi_offset x6,   28
+	.cfi_offset x7,   32
+	.cfi_offset x8,   36
+	.cfi_offset x9,   40
+	.cfi_offset x10,  44
+	.cfi_offset x11,  48
+	.cfi_offset x12,  52
+	.cfi_offset x13,  56
+	.cfi_offset x14,  60
+	.cfi_offset x15,  64
+	.cfi_offset x16,  68
+	.cfi_offset x17,  72
+	.cfi_offset x18,  76
+	.cfi_offset x19,  80
+	.cfi_offset x20,  84
+	.cfi_offset x21,  88
+	.cfi_offset x22,  92
+	.cfi_offset x23,  96
+	.cfi_offset x24, 100
+	.cfi_offset x25, 104
+	.cfi_offset x26, 108
+	.cfi_offset x27, 112
+	.cfi_offset x28, 116
+	.cfi_offset x29, 120
+	.cfi_offset x30, 124
+	.cfi_offset x31, 128
+
+	# FPRs (ABI)
+	.cfi_offset ft0,  132
+	.cfi_offset ft1,  136
+	.cfi_offset ft2,  140
+	.cfi_offset ft3,  144
+	.cfi_offset ft4,  148
+	.cfi_offset ft5,  152
+	.cfi_offset ft6,  156
+	.cfi_offset ft7,  160
+	.cfi_offset fs0,  164
+	.cfi_offset fs1,  168
+	.cfi_offset fa0,  172
+	.cfi_offset fa1,  176
+	.cfi_offset fa2,  180
+	.cfi_offset fa3,  184
+	.cfi_offset fa4,  188
+	.cfi_offset fa5,  192
+	.cfi_offset fa6,  196
+	.cfi_offset fa7,  200
+	.cfi_offset fs2,  204
+	.cfi_offset fs3,  208
+	.cfi_offset fs4,  212
+	.cfi_offset fs5,  216
+	.cfi_offset fs6,  220
+	.cfi_offset fs7,  224
+	.cfi_offset fs8,  228
+	.cfi_offset fs9,  232
+	.cfi_offset fs10, 236
+	.cfi_offset fs11, 240
+	.cfi_offset ft8,  244
+	.cfi_offset ft9,  248
+	.cfi_offset ft10, 252
+	.cfi_offset ft11, 256
+
+	# FPRs (Numeric)
+	.cfi_offset f0,  132
+	.cfi_offset f1,  136
+	.cfi_offset f2,  140
+	.cfi_offset f3,  144
+	.cfi_offset f4,  148
+	.cfi_offset f5,  152
+	.cfi_offset f6,  156
+	.cfi_offset f7,  160
+	.cfi_offset f8,  164
+	.cfi_offset f9,  168
+	.cfi_offset f10, 172
+	.cfi_offset f11, 176
+	.cfi_offset f12, 180
+	.cfi_offset f13, 184
+	.cfi_offset f14, 188
+	.cfi_offset f15, 192
+	.cfi_offset f16, 196
+	.cfi_offset f17, 200
+	.cfi_offset f18, 204
+	.cfi_offset f19, 208
+	.cfi_offset f20, 212
+	.cfi_offset f21, 216
+	.cfi_offset f22, 220
+	.cfi_offset f23, 224
+	.cfi_offset f24, 228
+	.cfi_offset f25, 232
+	.cfi_offset f26, 236
+	.cfi_offset f27, 240
+	.cfi_offset f28, 244
+	.cfi_offset f29, 248
+	.cfi_offset f30, 252
+	.cfi_offset f31, 256
+
+	nop
+	.cfi_endproc