meta-xilinx/meta-microblaze/recipes-devtools/gcc/gcc-10/0023-patch-microblaze-Fix-the-calculation-of-high-word-in.patch

From ad3d0a29a4895351008ce959138c13b8f5924464 Mon Sep 17 00:00:00 2001
From: Mahesh Bodapati <mbodapat@xilinx.com>
Date: Wed, 18 Jan 2017 12:03:39 +0530
Subject: [PATCH 23/54] [patch,microblaze]: Fix the calculation of high word in
 a long long 6. .4-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 29b2f6b016b..4710def18cf 100644
--- a/gcc/config/microblaze/microblaze.c
+++ b/gcc/config/microblaze/microblaze.c
@@ -2468,9 +2468,6 @@ 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