1 files changed, 45 insertions, 0 deletions

diff --git a/meta-microblaze/recipes-devtools/gcc/gcc-10/0028-patch-microblaze-Fix-the-calculation-of-high-word-in.patch b/meta-microblaze/recipes-devtools/gcc/gcc-10/0028-patch-microblaze-Fix-the-calculation-of-high-word-in.patch
new file mode 100644
index 00000000..3f9dd69b
--- /dev/null
+++ b/meta-microblaze/recipes-devtools/gcc/gcc-10/0028-patch-microblaze-Fix-the-calculation-of-high-word-in.patch
@@ -0,0 +1,45 @@
+From fa067a4b7b65aae3671bb02d77c580c9e35fc384 Mon Sep 17 00:00:00 2001
+From: Mahesh Bodapati <mbodapat@xilinx.com>
+Date: Wed, 18 Jan 2017 12:03:39 +0530
+Subject: [PATCH 28/58] [patch,microblaze]: Fix the calculation of high word in
+ a long long 64-bit
+
+This patch will change the calculation of high word in a long long 64-bit.
+Earlier to this patch the high word of long long word (0xF0000000ULL) is
+coming to be 0xFFFFFFFF and low word is 0xF0000000. Instead the high word
+should be 0x00000000 and the low word should be 0xF0000000. This patch
+removes the condition of checking high word = 0 & low word < 0.
+This check is not required for the correctness of calculating 32-bit high
+and low words in a 64-bit long long.
+
+Signed-off-by :Nagaraju Mekala <nmekala@xilix.com>
+               Ajit Agarwal  <ajitkum@xilinx.com>
+
+ChangeLog:
+2016-03-01 Nagaraju Mekala <nmekala@xilix.com>
+           Ajit Agarwal  <ajitkum@xilinx.com>
+
+    *config/microblaze/microblaze.c (print_operand): Remove the condition of checking
+    high word = 0 & low word < 0.
+    *testsuite/gcc.target/microblaze/others/long.c: Add -O0 option.
+---
+ gcc/config/microblaze/microblaze.c | 3 ---
+ 1 file changed, 3 deletions(-)
+
+diff --git a/gcc/config/microblaze/microblaze.c b/gcc/config/microblaze/microblaze.c
+index f7c29ef28f5..0a73a6c32b4 100644
+--- a/gcc/config/microblaze/microblaze.c
++++ b/gcc/config/microblaze/microblaze.c
+@@ -2603,9 +2603,6 @@ print_operand (FILE * file, rtx op, int letter)
+         {
+          val[0] = (INTVAL (op) & 0xffffffff00000000LL) >> 32;
+          val[1] = INTVAL (op) & 0x00000000ffffffffLL;
+-         if (val[0] == 0 && val[1] < 0)
+-           val[0] = -1;
+-           
+         }
+       fprintf (file, "0x%8.8lx", (letter == 'h') ? val[0] : val[1]);
+     }
+-- 
+2.17.1
+