meta-xilinx/meta-xilinx-bsp/recipes-microblaze/gcc/gcc-7/0030-MicroBlaze-fixing-the-bug-in-the-bit-field-instructi.patch

From 0c740ddd203433ef8d979348c085269f8b97cbfc Mon Sep 17 00:00:00 2001
From: Mahesh Bodapati <mbodapat@xilinx.com>
Date: Sat, 26 Aug 2017 19:21:50 -0700
Subject: [PATCH] MicroBlaze fixing the bug in the bit-field instruction.

Bit field instruction should be generated only if mcpu >10.0

Signed-off-by: Mahesh Bodapati <mbodapat@xilinx.com>
Signed-off-by: Manjukumar Matha <manjukumar.harthikote-matha@xilinx.com>
Upstream-Status: Pending
---
 gcc/config/microblaze/microblaze.c | 3 +++
 gcc/config/microblaze/microblaze.h | 2 ++
 2 files changed, 5 insertions(+)

diff --git a/gcc/config/microblaze/microblaze.c b/gcc/config/microblaze/microblaze.c
index 55dba83882..4f6d399bba 100644
--- a/gcc/config/microblaze/microblaze.c
+++ b/gcc/config/microblaze/microblaze.c
@@ -159,6 +159,9 @@ int microblaze_no_unsafe_delay;
 /* Set to one if the targeted core has the CLZ insn.  */
 int microblaze_has_clz = 0;
 
+/* Set to one if the targeted core has barrel-shift and cpu > 10.0 */
+int microblaze_has_bitfield = 0;
+
 /* Which CPU pipeline do we use. We haven't really standardized on a CPU 
    version having only a particular type of pipeline. There can still be 
    options on the CPU to scale pipeline features up or down. :( 
diff --git a/gcc/config/microblaze/microblaze.h b/gcc/config/microblaze/microblaze.h
index 3f48e48f10..712525f856 100644
--- a/gcc/config/microblaze/microblaze.h
+++ b/gcc/config/microblaze/microblaze.h
@@ -44,6 +44,7 @@ extern int microblaze_dbx_regno[];
 
 extern int microblaze_no_unsafe_delay;
 extern int microblaze_has_clz;
+extern int microblaze_has_bitfield;
 extern enum pipeline_type microblaze_pipe;
 
 #define OBJECT_FORMAT_ELF
@@ -62,6 +63,7 @@ extern enum pipeline_type microblaze_pipe;
 
 /* Do we have CLZ?  */
 #define TARGET_HAS_CLZ      (TARGET_PATTERN_COMPARE && microblaze_has_clz)
+#define TARGET_HAS_BITFIELD      (TARGET_BARREL_SHIFT && microblaze_has_bitfield)
 
 /* The default is to support PIC.  */
 #define TARGET_SUPPORTS_PIC 1
-- 
2.14.2