meta-xilinx: remove subtree

The meta-xilinx layer was used for a now-deleted EVB.  Neither the EVB
nor the meta-xilinx layer have been updated for the Yocto override
syntax change and the meta-xilinx still doesn't have a hardknott or
honister branch (or corresponding support).

I've asked the Xilinx maintainer back in May on when a hardknott
version would be supported and I was told "about a month from now".  I
followed up in August and was told "work is in progress".  As of today
there are still zero commits in meta-xilinx since January 2021.

As such, I do not believe this layer is well-maintained and we have no
specific use for it anymore.  Remove it until someone finds a good
reason to include it and the upstream shows signs of life.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: Id14ea55db2ac2779edf42e63cb57ad7d25172ad5

1 files changed, 0 insertions, 72 deletions

diff --git a/meta-xilinx/meta-microblaze/recipes-devtools/gcc/gcc-10/0019-Patch-microblaze-Update-ashlsi3-movsf-patterns.patch b/meta-xilinx/meta-microblaze/recipes-devtools/gcc/gcc-10/0019-Patch-microblaze-Update-ashlsi3-movsf-patterns.patch
deleted file mode 100644
index 4a4901199..000000000
--- a/meta-xilinx/meta-microblaze/recipes-devtools/gcc/gcc-10/0019-Patch-microblaze-Update-ashlsi3-movsf-patterns.patch
+++ /dev/null
@@ -1,72 +0,0 @@
-From 3a9ee185eb462f880ceb4ddd125d4a98e0759873 Mon Sep 17 00:00:00 2001
-From: Mahesh Bodapati <mbodapat@xilinx.com>
-Date: Tue, 17 Jan 2017 18:18:41 +0530
-Subject: [PATCH 19/54] [Patch, microblaze]: Update ashlsi3 & movsf patterns
- This patch removes the use of HOST_WIDE_INT_PRINT_HEX macro in print_operand
- of ashlsi3_with_mul_nodelay,ashlsi3_with_mul_delay and movsf_internal
- patterns beacuse HOST_WIDE_INT_PRINT_HEX is generating 64-bit value which our
- instruction doesn't support so using gen_int_mode function
-
-Signed-off-by :Nagaraju Mekala <nmekala@xilix.com>
-              :Ajit Agarwal  <ajitkum@xilinx.com>
-
-ChangeLog:
-2016-01-07 Nagaraju Mekala <nmekala@xilix.com>
-           Ajit Agarwal  <ajitkum@xilinx.com>
-
-  *microblaze.md (ashlsi3_with_mul_nodelay,
-                  ashlsi3_with_mul_delay,
-                  movsf_internal):
-    Updated the patterns to use gen_int_mode function
-  *microblaze.c (print_operand):
-     updated the 'F' case to use "unsinged int" instead
-     of HOST_WIDE_INT_PRINT_HEX
----
- gcc/config/microblaze/microblaze.c  |  2 +-
- gcc/config/microblaze/microblaze.md | 10 ++++++++--
- 2 files changed, 9 insertions(+), 3 deletions(-)
-
-diff --git a/gcc/config/microblaze/microblaze.c b/gcc/config/microblaze/microblaze.c
-index 9eae5515c60..0a4619eec0c 100644
---- a/gcc/config/microblaze/microblaze.c
-+++ b/gcc/config/microblaze/microblaze.c
-@@ -2468,7 +2468,7 @@ print_operand (FILE * file, rtx op, int letter)
- 	  unsigned long value_long;
- 	  REAL_VALUE_TO_TARGET_SINGLE (*CONST_DOUBLE_REAL_VALUE (op),
- 				       value_long);
--	  fprintf (file, "0x%lx", value_long);
-+	  fprintf (file, "0x%08x", (unsigned int) value_long);
- 	}
-       else
- 	{
-diff --git a/gcc/config/microblaze/microblaze.md b/gcc/config/microblaze/microblaze.md
-index efd2c34e0b7..be8bbda2bfb 100644
---- a/gcc/config/microblaze/microblaze.md
-+++ b/gcc/config/microblaze/microblaze.md
-@@ -1368,7 +1368,10 @@
-                    (match_operand:SI 2 "immediate_operand" "I")))] 
-   "!TARGET_SOFT_MUL 
-    && ((1 << INTVAL (operands[2])) <= 32767 && (1 << INTVAL (operands[2])) >= -32768)"
--  "muli\t%0,%1,%m2"
-+  {
-+    operands[2] = gen_int_mode (1 << INTVAL (operands[2]), SImode);
-+    return "muli\t%0,%1,%2";
-+  }
-   ;; This MUL will not generate an imm. Can go into a delay slot.
-   [(set_attr "type"	"arith")
-    (set_attr "mode"	"SI")
-@@ -1380,7 +1383,10 @@
- 	(ashift:SI (match_operand:SI 1 "register_operand"  "d")
-                    (match_operand:SI 2 "immediate_operand" "I")))] 
-   "!TARGET_SOFT_MUL"
--  "muli\t%0,%1,%m2"
-+  {
-+    operands[2] = gen_int_mode (1 << INTVAL (operands[2]), SImode);
-+    return "muli\t%0,%1,%2";
-+  }
-   ;; This MUL will generate an IMM. Cannot go into a delay slot
-   [(set_attr "type"	"no_delay_arith")
-    (set_attr "mode"	"SI")
--- 
-2.17.1
-