meta-xilinx/meta-xilinx-bsp/recipes-microblaze/gcc/gcc-7/0027-Fix-the-calculation-of-high-word-in-a-long-long-64-b.patch

From 34049c9fcaa256befad032cbcd8aa74beecf13dc Mon Sep 17 00:00:00 2001
From: Mahesh Bodapati <mbodapat@xilinx.com>
Date: Sat, 26 Aug 2017 19:21:47 -0700
Subject: [PATCH] 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.

ChangeLog:

2016-03-01  Nagaraju Mekala  <nagaraju.mekala@xilinx.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.

Signed-off-by: Nagaraju Mekala <nagaraju.mekala@xilinx.com>
Signed-off-by: Ajit Agarwal <ajitkum@xilinx.com>
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 ---
 1 file changed, 3 deletions(-)

diff --git a/gcc/config/microblaze/microblaze.c b/gcc/config/microblaze/microblaze.c
index a41121264e..2ed64971fb 100644
--- a/gcc/config/microblaze/microblaze.c
+++ b/gcc/config/microblaze/microblaze.c
@@ -2509,9 +2509,6 @@ 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]);
     }
-- 
2.14.2