From 95b0c2c431510013eb2f7385fc078ee2498f83bf Mon Sep 17 00:00:00 2001
From: Stefan Liebler <stli@linux.ibm.com>
Date: Wed, 11 Dec 2019 15:09:15 +0100
Subject: [PATCH] Always use wordsize-64 version of s_floor.c.

This patch replaces s_floor.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>
---
 sysdeps/ieee754/dbl-64/{wordsize-64 => }/s_floor.c | 46 +++++++++++++---------
 .../sparc/sparc64/fpu/multiarch/s_floor-generic.c  |  2 +-
 sysdeps/sparc/sparc64/fpu/multiarch/s_floor-vis3.c |  2 +-
 sysdeps/x86_64/fpu/multiarch/s_floor-c.c           |  2 +-
 4 files changed, 30 insertions(+), 22 deletions(-)
 rename sysdeps/ieee754/dbl-64/{wordsize-64 => }/s_floor.c (73%)

diff --git a/sysdeps/ieee754/dbl-64/wordsize-64/s_floor.c b/sysdeps/ieee754/dbl-64/s_floor.c
similarity index 73%
rename from sysdeps/ieee754/dbl-64/wordsize-64/s_floor.c
rename to sysdeps/ieee754/dbl-64/s_floor.c
index b60f15bf00..ce0c42bdb6 100644
--- a/sysdeps/ieee754/dbl-64/wordsize-64/s_floor.c
+++ b/sysdeps/ieee754/dbl-64/s_floor.c
@@ -47,25 +47,33 @@
 double
 __floor (double x)
 {
-	int64_t i0;
-	EXTRACT_WORDS64(i0,x);
-	int32_t j0 = ((i0>>52)&0x7ff)-0x3ff;
-	if(__builtin_expect(j0<52, 1)) {
-	    if(j0<0) {
-		/* return 0*sign(x) if |x|<1 */
-		if(i0>=0) {i0=0;}
-		else if((i0&0x7fffffffffffffffl)!=0)
-		  { i0=0xbff0000000000000l;}
-	    } else {
-		uint64_t i = (0x000fffffffffffffl)>>j0;
-		if((i0&i)==0) return x; /* x is integral */
-		if(i0<0) i0 += (0x0010000000000000l)>>j0;
-		i0 &= (~i);
-	    }
-	    INSERT_WORDS64(x,i0);
-	} else if (j0==0x400)
-	    return x+x;	/* inf or NaN */
-	return x;
+  int64_t i0;
+  EXTRACT_WORDS64 (i0, x);
+  int32_t j0 = ((i0 >> 52) & 0x7ff) - 0x3ff;
+  if (__glibc_likely (j0 < 52))
+    {
+      if (j0 < 0)
+	{
+	  /* return 0 * sign (x) if |x| < 1  */
+	  if (i0 >= 0)
+	    i0 = 0;
+	  else if ((i0 & 0x7fffffffffffffffl) != 0)
+	    i0 = 0xbff0000000000000l;
+	}
+      else
+	{
+	  uint64_t i = 0x000fffffffffffffl >> j0;
+	  if ((i0 & i) == 0)
+	    return x;			 /* x is integral */
+	  if (i0 < 0)
+	    i0 += 0x0010000000000000l >> j0;
+	  i0 &= ~i;
+	}
+      INSERT_WORDS64 (x, i0);
+    }
+  else if (j0 == 0x400)
+    return x + x;			/* inf or NaN */
+  return x;
 }
 #ifndef __floor
 libm_alias_double (__floor, floor)
diff --git a/sysdeps/sparc/sparc64/fpu/multiarch/s_floor-generic.c b/sysdeps/sparc/sparc64/fpu/multiarch/s_floor-generic.c
index 0f3361a9fb..c92b600df1 100644
--- a/sysdeps/sparc/sparc64/fpu/multiarch/s_floor-generic.c
+++ b/sysdeps/sparc/sparc64/fpu/multiarch/s_floor-generic.c
@@ -1,2 +1,2 @@
 #define __floor __floor_generic
-#include <sysdeps/ieee754/dbl-64/wordsize-64/s_floor.c>
+#include <sysdeps/ieee754/dbl-64/s_floor.c>
diff --git a/sysdeps/sparc/sparc64/fpu/multiarch/s_floor-vis3.c b/sysdeps/sparc/sparc64/fpu/multiarch/s_floor-vis3.c
index ccac0e46af..4f3d53c0e3 100644
--- a/sysdeps/sparc/sparc64/fpu/multiarch/s_floor-vis3.c
+++ b/sysdeps/sparc/sparc64/fpu/multiarch/s_floor-vis3.c
@@ -20,4 +20,4 @@
 
 #define __floor __floor_vis3
 
-#include <sysdeps/ieee754/dbl-64/wordsize-64/s_floor.c>
+#include <sysdeps/ieee754/dbl-64/s_floor.c>
diff --git a/sysdeps/x86_64/fpu/multiarch/s_floor-c.c b/sysdeps/x86_64/fpu/multiarch/s_floor-c.c
index 68733b69ef..002d12247e 100644
--- a/sysdeps/x86_64/fpu/multiarch/s_floor-c.c
+++ b/sysdeps/x86_64/fpu/multiarch/s_floor-c.c
@@ -1,3 +1,3 @@
 #undef __floor
 #define __floor __floor_c
-#include <sysdeps/ieee754/dbl-64/wordsize-64/s_floor.c>
+#include <sysdeps/ieee754/dbl-64/s_floor.c>
-- 
2.11.4.GIT