[ARM]: Add support for vldmia/vldmdb/vstmia/vstmdb instructions in MVE.

This patch adds support for assembly instructions vldmia, vldmdb, vstmia
and vstmdb in MVE.  This instructions are already supported for Armv8-M
Floating-point Extension.

gas/ChangeLog:

2020-01-31  Srinath Parvathaneni  <srinath.parvathaneni@arm.com>

	* config/tc-arm.c (fldmias): Moved inside "THUMB_VARIANT & arm_ext_v6t2"
	to support VLDMIA instruction for MVE.
	(fldmdbs): Moved inside "THUMB_VARIANT & arm_ext_v6t2" to support VLDMDB
	instruction for MVE.
	(fstmias): Moved inside "THUMB_VARIANT & arm_ext_v6t2" to support VSTMIA
	instruction for MVE.
	(fstmdbs): Moved inside "THUMB_VARIANT & arm_ext_v6t2" to support VSTMDB
	instruction for MVE.
	* testsuite/gas/arm/mve-ldst.d: New test.
	* testsuite/gas/arm/mve-ldst.s: Likewise.

diff --git a/gas/ChangeLog b/gas/ChangeLog
index d6c9eb61ce2afee14e5390cc779988ea61286a47..4ee4809e51642c75e328828b4d99deaa4394c73b 100644 (file)
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,16 @@
+2020-01-31  Srinath Parvathaneni  <srinath.parvathaneni@arm.com>
+
+       * config/tc-arm.c (fldmias): Moved inside "THUMB_VARIANT & arm_ext_v6t2"
+       to support VLDMIA instruction for MVE.
+       (fldmdbs): Moved inside "THUMB_VARIANT & arm_ext_v6t2" to support VLDMDB
+       instruction for MVE.
+       (fstmias): Moved inside "THUMB_VARIANT & arm_ext_v6t2" to support VSTMIA
+       instruction for MVE.
+       (fstmdbs): Moved inside "THUMB_VARIANT & arm_ext_v6t2" to support VSTMDB
+       instruction for MVE.
+       * testsuite/gas/arm/mve-ldst.d: New test.
+       * testsuite/gas/arm/mve-ldst.s: Likewise.
+
 2020-01-31  Nick Clifton  <nickc@redhat.com>
 
        * po/fr.po: Updated French translation.

diff --git a/gas/config/tc-arm.c b/gas/config/tc-arm.c
index 16cbac4279ef96d0edff57f83cb20935ae5196eb..3adc57076842c985c17d3e084f67caf9e4e0ac7e 100644 (file)
--- a/gas/config/tc-arm.c
+++ b/gas/config/tc-arm.c
@@ -24989,6 +24989,12 @@ static const struct asm_opcode insns[] =
  mcCE(fstd,    d000b00, 2, (RVD, ADDRGLDC),  vfp_dp_ldst),
  mcCE(flds,    d100a00, 2, (RVS, ADDRGLDC),  vfp_sp_ldst),
  mcCE(fsts,    d000a00, 2, (RVS, ADDRGLDC),  vfp_sp_ldst),
+
+  /* Memory operations.         */
+ mcCE(fldmias, c900a00, 2, (RRnpctw, VRSLST),    vfp_sp_ldstmia),
+ mcCE(fldmdbs, d300a00, 2, (RRnpctw, VRSLST),    vfp_sp_ldstmdb),
+ mcCE(fstmias, c800a00, 2, (RRnpctw, VRSLST),    vfp_sp_ldstmia),
+ mcCE(fstmdbs, d200a00, 2, (RRnpctw, VRSLST),    vfp_sp_ldstmdb),
 #undef THUMB_VARIANT
 
   /* Moves and type conversions.  */
@@ -25003,17 +25009,13 @@ static const struct asm_opcode insns[] =
  cCE("fmxr",   ee00a10, 2, (RVC, RR),        rn_rd),
 
   /* Memory operations.         */
- cCE("fldmias",        c900a00, 2, (RRnpctw, VRSLST),    vfp_sp_ldstmia),
  cCE("fldmfds",        c900a00, 2, (RRnpctw, VRSLST),    vfp_sp_ldstmia),
- cCE("fldmdbs",        d300a00, 2, (RRnpctw, VRSLST),    vfp_sp_ldstmdb),
  cCE("fldmeas",        d300a00, 2, (RRnpctw, VRSLST),    vfp_sp_ldstmdb),
  cCE("fldmiax",        c900b00, 2, (RRnpctw, VRDLST),    vfp_xp_ldstmia),
  cCE("fldmfdx",        c900b00, 2, (RRnpctw, VRDLST),    vfp_xp_ldstmia),
  cCE("fldmdbx",        d300b00, 2, (RRnpctw, VRDLST),    vfp_xp_ldstmdb),
  cCE("fldmeax",        d300b00, 2, (RRnpctw, VRDLST),    vfp_xp_ldstmdb),
- cCE("fstmias",        c800a00, 2, (RRnpctw, VRSLST),    vfp_sp_ldstmia),
  cCE("fstmeas",        c800a00, 2, (RRnpctw, VRSLST),    vfp_sp_ldstmia),
- cCE("fstmdbs",        d200a00, 2, (RRnpctw, VRSLST),    vfp_sp_ldstmdb),
  cCE("fstmfds",        d200a00, 2, (RRnpctw, VRSLST),    vfp_sp_ldstmdb),
  cCE("fstmiax",        c800b00, 2, (RRnpctw, VRDLST),    vfp_xp_ldstmia),
  cCE("fstmeax",        c800b00, 2, (RRnpctw, VRDLST),    vfp_xp_ldstmia),

diff --git a/gas/testsuite/gas/arm/mve-ldst.d b/gas/testsuite/gas/arm/mve-ldst.d
new file mode 100644 (file)
index 0000000..b676b5c
--- /dev/null
+++ b/gas/testsuite/gas/arm/mve-ldst.d
@@ -0,0 +1,43 @@
+# name: MVE Floating point load multiple and store multiple instructions.
+# as: -march=armv8.1-m.main+mve
+# objdump: -dr --prefix-addresses --show-raw-insn -marmv8.1-m.main
+
+.*: +file format .*arm.*
+
+Disassembly of section .text:
+[^>]*> ecb0 8a01       vldmia  r0!, {s16}
+[^>]*> ed30 8a01       vldmdb  r0!, {s16}
+[^>]*> eca0 8a01       vstmia  r0!, {s16}
+[^>]*> ed20 8a01       vstmdb  r0!, {s16}
+[^>]*> ecb1 8a01       vldmia  r1!, {s16}
+[^>]*> ed31 8a01       vldmdb  r1!, {s16}
+[^>]*> eca1 8a01       vstmia  r1!, {s16}
+[^>]*> ed21 8a01       vstmdb  r1!, {s16}
+[^>]*> ecb2 8a01       vldmia  r2!, {s16}
+[^>]*> ed32 8a01       vldmdb  r2!, {s16}
+[^>]*> eca2 8a01       vstmia  r2!, {s16}
+[^>]*> ed22 8a01       vstmdb  r2!, {s16}
+[^>]*> ecb4 8a01       vldmia  r4!, {s16}
+[^>]*> ed34 8a01       vldmdb  r4!, {s16}
+[^>]*> eca4 8a01       vstmia  r4!, {s16}
+[^>]*> ed24 8a01       vstmdb  r4!, {s16}
+[^>]*> ecb7 8a01       vldmia  r7!, {s16}
+[^>]*> ed37 8a01       vldmdb  r7!, {s16}
+[^>]*> eca7 8a01       vstmia  r7!, {s16}
+[^>]*> ed27 8a01       vstmdb  r7!, {s16}
+[^>]*> ecb8 8a01       vldmia  r8!, {s16}
+[^>]*> ed38 8a01       vldmdb  r8!, {s16}
+[^>]*> eca8 8a01       vstmia  r8!, {s16}
+[^>]*> ed28 8a01       vstmdb  r8!, {s16}
+[^>]*> ecba 8a01       vldmia  sl!, {s16}
+[^>]*> ed3a 8a01       vldmdb  sl!, {s16}
+[^>]*> ecaa 8a01       vstmia  sl!, {s16}
+[^>]*> ed2a 8a01       vstmdb  sl!, {s16}
+[^>]*> ecbc 8a01       vldmia  ip!, {s16}
+[^>]*> ed3c 8a01       vldmdb  ip!, {s16}
+[^>]*> ecac 8a01       vstmia  ip!, {s16}
+[^>]*> ed2c 8a01       vstmdb  ip!, {s16}
+[^>]*> ecbe 8a01       vldmia  lr!, {s16}
+[^>]*> ed3e 8a01       vldmdb  lr!, {s16}
+[^>]*> ecae 8a01       vstmia  lr!, {s16}
+[^>]*> ed2e 8a01       vstmdb  lr!, {s16}

diff --git a/gas/testsuite/gas/arm/mve-ldst.s b/gas/testsuite/gas/arm/mve-ldst.s
new file mode 100644 (file)
index 0000000..c8bbebe
--- /dev/null
+++ b/gas/testsuite/gas/arm/mve-ldst.s
@@ -0,0 +1,13 @@
+.arch armv8.1-m.main
+.arch_extension dsp
+.arch_extension mve
+.syntax unified
+.thumb
+.text
+
+.irp op0, r0, r1, r2, r4, r7, r8, r10, r12, r14
+vldmia.32 \op0!,{s16}
+vldmdb.32 \op0!,{s16}
+vstmia.32 \op0!,{s16}
+vstmdb.32 \op0!,{s16}
+.endr