[PATCH v2 02/11] RISC-V: Add test for 'Zfinx' register switching

[Tsukasa OI <research_trasio@irq.a4lg.com>]

From: Tsukasa OI <research_trasio@irq.a4lg.com>

Because the author is going to reorganize core RISC-V disassembler, we have
to make sure that nothing is broken when disassembling with mapping symbols
with ISA string.

This commit adds a testcase for 'F' and 'Zfinx' instructions to make sure
that "FPR" register names are correctly switched when necessary.

gas/ChangeLog:

	* testsuite/gas/riscv/mapping.s: Add 'F' and 'Zfinx' testcase.
	* testsuite/gas/riscv/mapping-dis.d: Likewise.
	* testsuite/gas/riscv/mapping-symbols.d: Likewise.
---
 gas/testsuite/gas/riscv/mapping-dis.d     |  7 +++++++
 gas/testsuite/gas/riscv/mapping-symbols.d |  4 ++++
 gas/testsuite/gas/riscv/mapping.s         | 10 ++++++++++
 3 files changed, 21 insertions(+)

diff --git a/gas/testsuite/gas/riscv/mapping-dis.d b/gas/testsuite/gas/riscv/mapping-dis.d
index b1a26fbd151b..f0508499b726 100644
--- a/gas/testsuite/gas/riscv/mapping-dis.d
+++ b/gas/testsuite/gas/riscv/mapping-dis.d
@@ -91,3 +91,10 @@ Disassembly of section .text.relax.align:
 [ 	]+[0-9a-f]+:[ 	]+00000013[ 	]+nop
 [ 	]+[0-9a-f]+:[ 	]+00200513[ 	]+li[ 	]+a0,2
 [ 	]+[0-9a-f]+:[ 	]+00000013[ 	]+nop
+
+Disassembly of section .text.dis.zfinx:
+
+0+000 <.text.dis.zfinx>:
+[ 	]+[0-9a-f]+:[ 	]+00c5f553[ 	]+fadd\.s[ 	]+fa0,fa1,fa2
+[ 	]+[0-9a-f]+:[ 	]+00c5f553[ 	]+fadd\.s[ 	]+a0,a1,a2
+[ 	]+[0-9a-f]+:[ 	]+00c5f553[ 	]+fadd\.s[ 	]+fa0,fa1,fa2
diff --git a/gas/testsuite/gas/riscv/mapping-symbols.d b/gas/testsuite/gas/riscv/mapping-symbols.d
index 40df34097369..b28e3306b1b4 100644
--- a/gas/testsuite/gas/riscv/mapping-symbols.d
+++ b/gas/testsuite/gas/riscv/mapping-symbols.d
@@ -42,6 +42,10 @@ SYMBOL TABLE:
 0+00 l    d  .text.relax.align	0+00 .text.relax.align
 0+00 l       .text.relax.align	0+00 \$xrv32i2p1_c2p0
 0+08 l       .text.relax.align	0+00 \$xrv32i2p1
+0+00 l    d  .text.dis.zfinx	0+00 .text.dis.zfinx
+0+00 l       .text.dis.zfinx	0+00 \$xrv32i2p1_f2p2_zicsr2p0
+0+04 l       .text.dis.zfinx	0+00 \$xrv32i2p1_zicsr2p0_zfinx1p0
+0+08 l       .text.dis.zfinx	0+00 \$xrv32i2p1_f2p2_zicsr2p0
 0+0a l       .text.section.padding	0+00 \$x
 0+03 l       .text.odd.align.start.insn	0+00 \$d
 0+04 l       .text.odd.align.start.insn	0+00 \$x
diff --git a/gas/testsuite/gas/riscv/mapping.s b/gas/testsuite/gas/riscv/mapping.s
index 3014a69e7920..4fee2b420f0c 100644
--- a/gas/testsuite/gas/riscv/mapping.s
+++ b/gas/testsuite/gas/riscv/mapping.s
@@ -119,3 +119,13 @@ addi	a0, zero, 1		# $x, won't added
 .align	3			# $x, won't added
 addi	a0, zero, 2		# $xrv32i
 .option pop
+
+.section .text.dis.zfinx, "ax"
+.option push
+.option arch, rv32if
+fadd.s	fa0, fa1, fa2		# $xrv32if
+.option arch, rv32i_zfinx
+fadd.s	a0, a1, a2		# $xrv32i_zfinx
+.option arch, rv32if
+fadd.s	fa0, fa1, fa2		# $xrv32if
+.option pop
-- 
2.38.1