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glibc/SOURCES/glibc-rh1780204-04.patch
CentOS Sources afe48f68ed import glibc-2.28-127.el8
2021-10-08 11:23:15 +00:00

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From d3833cb69c7ff42ac8df68ed7b646c98c3a32eb8 Mon Sep 17 00:00:00 2001
From: Stefan Liebler <stli@linux.ibm.com>
Date: Wed, 11 Dec 2019 15:09:16 +0100
Subject: [PATCH 04/28] Always use wordsize-64 version of s_ceil.c.
This patch replaces s_ceil.c in sysdeps/dbl-64 with the one in
sysdeps/dbl-64/wordsize-64 and removes the latter one.
The code is not changed except changes in code style.
Also adjusted the include path in x86_64 and sparc64 files.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
(cherry picked from commit 9f234eafe8698fd9a441ca2309a299d0bd771156)
---
sysdeps/ieee754/dbl-64/s_ceil.c | 59 ++++++-------------
sysdeps/ieee754/dbl-64/wordsize-64/s_ceil.c | 51 ----------------
.../sparc64/fpu/multiarch/s_ceil-generic.c | 2 +-
.../sparc/sparc64/fpu/multiarch/s_ceil-vis3.c | 2 +-
sysdeps/x86_64/fpu/multiarch/s_ceil-c.c | 2 +-
5 files changed, 21 insertions(+), 95 deletions(-)
delete mode 100644 sysdeps/ieee754/dbl-64/wordsize-64/s_ceil.c
diff --git a/sysdeps/ieee754/dbl-64/s_ceil.c b/sysdeps/ieee754/dbl-64/s_ceil.c
index 5a7434c737..3becdfc515 100644
--- a/sysdeps/ieee754/dbl-64/s_ceil.c
+++ b/sysdeps/ieee754/dbl-64/s_ceil.c
@@ -24,61 +24,38 @@
double
__ceil (double x)
{
- int32_t i0, i1, j0;
- uint32_t i, j;
- EXTRACT_WORDS (i0, i1, x);
- j0 = ((i0 >> 20) & 0x7ff) - 0x3ff;
- if (j0 < 20)
+ int64_t i0, i;
+ int32_t j0;
+ EXTRACT_WORDS64 (i0, x);
+ j0 = ((i0 >> 52) & 0x7ff) - 0x3ff;
+ if (j0 <= 51)
{
if (j0 < 0)
{
- /* return 0*sign(x) if |x|<1 */
+ /* return 0 * sign(x) if |x| < 1 */
if (i0 < 0)
- {
- i0 = 0x80000000; i1 = 0;
- }
- else if ((i0 | i1) != 0)
- {
- i0 = 0x3ff00000; i1 = 0;
- }
+ i0 = INT64_C (0x8000000000000000);
+ else if (i0 != 0)
+ i0 = INT64_C (0x3ff0000000000000);
}
else
{
- i = (0x000fffff) >> j0;
- if (((i0 & i) | i1) == 0)
- return x; /* x is integral */
+ i = INT64_C (0x000fffffffffffff) >> j0;
+ if ((i0 & i) == 0)
+ return x; /* x is integral */
if (i0 > 0)
- i0 += (0x00100000) >> j0;
- i0 &= (~i); i1 = 0;
+ i0 += UINT64_C (0x0010000000000000) >> j0;
+ i0 &= ~i;
}
}
- else if (j0 > 51)
+ else
{
if (j0 == 0x400)
- return x + x; /* inf or NaN */
+ return x + x; /* inf or NaN */
else
- return x; /* x is integral */
- }
- else
- {
- i = ((uint32_t) (0xffffffff)) >> (j0 - 20);
- if ((i1 & i) == 0)
- return x; /* x is integral */
- if (i0 > 0)
- {
- if (j0 == 20)
- i0 += 1;
- else
- {
- j = i1 + (1 << (52 - j0));
- if (j < i1)
- i0 += 1; /* got a carry */
- i1 = j;
- }
- }
- i1 &= (~i);
+ return x; /* x is integral */
}
- INSERT_WORDS (x, i0, i1);
+ INSERT_WORDS64 (x, i0);
return x;
}
#ifndef __ceil
diff --git a/sysdeps/ieee754/dbl-64/wordsize-64/s_ceil.c b/sysdeps/ieee754/dbl-64/wordsize-64/s_ceil.c
deleted file mode 100644
index b99829d2b0..0000000000
--- a/sysdeps/ieee754/dbl-64/wordsize-64/s_ceil.c
+++ /dev/null
@@ -1,51 +0,0 @@
-/* @(#)s_ceil.c 5.1 93/09/24 */
-/*
- * ====================================================
- * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
- *
- * Developed at SunPro, a Sun Microsystems, Inc. business.
- * Permission to use, copy, modify, and distribute this
- * software is freely granted, provided that this notice
- * is preserved.
- * ====================================================
- */
-
-/*
- * ceil(x)
- * Return x rounded toward -inf to integral value
- * Method:
- * Bit twiddling.
- */
-
-#include <math.h>
-#include <math_private.h>
-#include <libm-alias-double.h>
-
-double
-__ceil(double x)
-{
- int64_t i0,i;
- int32_t j0;
- EXTRACT_WORDS64(i0,x);
- j0 = ((i0>>52)&0x7ff)-0x3ff;
- if(j0<=51) {
- if(j0<0) {
- /* return 0*sign(x) if |x|<1 */
- if(i0<0) {i0=INT64_C(0x8000000000000000);}
- else if(i0!=0) { i0=INT64_C(0x3ff0000000000000);}
- } else {
- i = INT64_C(0x000fffffffffffff)>>j0;
- if((i0&i)==0) return x; /* x is integral */
- if(i0>0) i0 += UINT64_C(0x0010000000000000)>>j0;
- i0 &= (~i);
- }
- } else {
- if(j0==0x400) return x+x; /* inf or NaN */
- else return x; /* x is integral */
- }
- INSERT_WORDS64(x,i0);
- return x;
-}
-#ifndef __ceil
-libm_alias_double (__ceil, ceil)
-#endif
diff --git a/sysdeps/sparc/sparc64/fpu/multiarch/s_ceil-generic.c b/sysdeps/sparc/sparc64/fpu/multiarch/s_ceil-generic.c
index febea745e1..80f68b6766 100644
--- a/sysdeps/sparc/sparc64/fpu/multiarch/s_ceil-generic.c
+++ b/sysdeps/sparc/sparc64/fpu/multiarch/s_ceil-generic.c
@@ -1,2 +1,2 @@
#define __ceil __ceil_generic
-#include <sysdeps/ieee754/dbl-64/wordsize-64/s_ceil.c>
+#include <sysdeps/ieee754/dbl-64/s_ceil.c>
diff --git a/sysdeps/sparc/sparc64/fpu/multiarch/s_ceil-vis3.c b/sysdeps/sparc/sparc64/fpu/multiarch/s_ceil-vis3.c
index a03a0090f0..59822e0f8c 100644
--- a/sysdeps/sparc/sparc64/fpu/multiarch/s_ceil-vis3.c
+++ b/sysdeps/sparc/sparc64/fpu/multiarch/s_ceil-vis3.c
@@ -20,4 +20,4 @@
#define __ceil __ceil_vis3
-#include <sysdeps/ieee754/dbl-64/wordsize-64/s_ceil.c>
+#include <sysdeps/ieee754/dbl-64/s_ceil.c>
diff --git a/sysdeps/x86_64/fpu/multiarch/s_ceil-c.c b/sysdeps/x86_64/fpu/multiarch/s_ceil-c.c
index 6a5ea3ff27..ada28baa1a 100644
--- a/sysdeps/x86_64/fpu/multiarch/s_ceil-c.c
+++ b/sysdeps/x86_64/fpu/multiarch/s_ceil-c.c
@@ -1,2 +1,2 @@
#define __ceil __ceil_c
-#include <sysdeps/ieee754/dbl-64/wordsize-64/s_ceil.c>
+#include <sysdeps/ieee754/dbl-64/s_ceil.c>
--
2.18.2
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