gcc-source: Add all Xilinx MicroBlaze GCC 7.2 patchesrocko

Add all the Xilinx patches for MicroBlaze, this includes a number of
bug fixes, testsuite fixes, feature improvements and additional feature
support.

Important changes:
 * v10.0 - CPU support
 * v10.0 - Bit-field instruction support
 * v10.0 - 8-stage pipeline aka 'frequency' optimized
 * Size optimized implementations for shift instructions

Signed-off-by: Nathan Rossi <nathan@nathanrossi.com>
Signed-off-by: Manjukumar Matha <manjukumar.harthikote-matha@xilinx.com>

1 files changed, 48 insertions, 0 deletions

diff --git a/meta-xilinx-bsp/recipes-microblaze/gcc/gcc-7/0031-Fixing-the-issue-with-MicroBlaze-builtin_alloc.patch b/meta-xilinx-bsp/recipes-microblaze/gcc/gcc-7/0031-Fixing-the-issue-with-MicroBlaze-builtin_alloc.patch
new file mode 100644
index 00000000..3786a71a
--- /dev/null
+++ b/meta-xilinx-bsp/recipes-microblaze/gcc/gcc-7/0031-Fixing-the-issue-with-MicroBlaze-builtin_alloc.patch
@@ -0,0 +1,48 @@
+From fdb99f97b41f7cd06b81e668b88463d0fc2cbe87 Mon Sep 17 00:00:00 2001
+From: Nagaraju Mekala <nagaraju.mekala@xilinx.com>
+Date: Sat, 26 Aug 2017 19:21:54 -0700
+Subject: [PATCH] Fixing the issue with MicroBlaze builtin_alloc
+
+Fixing the issue with the builtin_alloc. Register r18 was not properly
+handling the stack pattern which was resolved by using free available
+register
+
+Signed-off-by: Nagaraju Mekala <nagaraju.mekala@xilinx.com>
+Signed-off-by: Manjukumar Matha <manjukumar.harthikote-matha@xilinx.com>
+Upstream-Status: Pending
+---
+ gcc/config/microblaze/microblaze.md | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/gcc/config/microblaze/microblaze.md b/gcc/config/microblaze/microblaze.md
+index 7a00629922..68c3b22bd4 100644
+--- a/gcc/config/microblaze/microblaze.md
++++ b/gcc/config/microblaze/microblaze.md
+@@ -2076,10 +2076,10 @@
+   ""
+   { 
+     rtx retaddr = gen_rtx_MEM (Pmode, stack_pointer_rtx);
+-    rtx rtmp    = gen_rtx_REG (SImode, R_TMP);
++    rtx reg = gen_reg_rtx (Pmode);
+     rtx neg_op0;
+ 
+-    emit_move_insn (rtmp, retaddr);
++    emit_move_insn (reg, retaddr);
+     if (GET_CODE (operands[1]) != CONST_INT)
+     {
+         neg_op0 = gen_reg_rtx (Pmode);
+@@ -2088,9 +2088,9 @@
+         neg_op0 = GEN_INT (- INTVAL (operands[1]));
+ 
+     emit_insn (gen_addsi3 (stack_pointer_rtx, stack_pointer_rtx, neg_op0));
+-    emit_move_insn (gen_rtx_MEM (Pmode, stack_pointer_rtx), rtmp);
++    emit_move_insn (gen_rtx_MEM (Pmode, stack_pointer_rtx), reg);
+     emit_move_insn (operands[0], virtual_stack_dynamic_rtx);
+-    emit_insn (gen_rtx_CLOBBER (SImode, rtmp));
++    emit_insn (gen_rtx_CLOBBER (SImode, reg));
+     DONE;
+   }
+ )
+-- 
+2.14.2
+