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[thirdparty/glibc.git] / sysdeps / powerpc / powerpc32 / fpu / s_truncf.S

diff --git a/sysdeps/powerpc/powerpc32/fpu/s_truncf.S b/sysdeps/powerpc/powerpc32/fpu/s_truncf.S
index 9a8dae931b0cc088c7623f491e061ded1488579e..1f2e02154cff60bc655a742779957b4e78793c39 100644 (file)
--- a/sysdeps/powerpc/powerpc32/fpu/s_truncf.S
+++ b/sysdeps/powerpc/powerpc32/fpu/s_truncf.S
@@ -1,5 +1,5 @@
 /* truncf function.  PowerPC32 version.
-   Copyright (C) 2004 Free Software Foundation, Inc.
+   Copyright (C) 2004-2014 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -13,53 +13,37 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
 
 #include <sysdep.h>
 
-       .section        .rodata
-       .align 3
-       .type   TWO23.0,@object
-       .size   TWO23.0,8
-TWO23.0:
-       .long 0x41600000
-       .long 0
-       .type   NEGZERO.0,@object
-       .size   NEGZERO.0,8
-NEGZERO.0:
-       .long 0x80000000
-       .long 0
-
-       .section        .rodata.cst8,"aM",@progbits,8
-       .align 3
+       .section        .rodata.cst4,"aM",@progbits,4
+       .align  2
 .LC0:  /* 2**23 */
-       .long 0x41600000
-       .long 0
-.LC1:  /* -0.0 */
-       .long 0x80000000
-       .long 0
+       .long 0x4b000000
 
 /* float [fp1] truncf (float x [fp1])
    IEEE 1003.1 trunc function.  IEEE specifies "trunc to the integer
-   value, in floating format, nearest to but no larger in magnitude 
+   value, in floating format, nearest to but no larger in magnitude
    then the argument."
    We set "round toward Zero" mode and trunc by adding +-2**23 then
    subtracting +-2**23.  */
 
+       .section        ".text"
 ENTRY (__truncf)
        mffs    fp11            /* Save current FPU rounding mode.  */
 #ifdef SHARED
        mflr    r11
-       bl      _GLOBAL_OFFSET_TABLE_@local-4
-       mflr    r10
-       lwz     r9,.LC0@got(10)
+       cfi_register(lr,r11)
+       SETUP_GOT_ACCESS(r9,got_label)
+       addis   r9,r9,.LC0-got_label@ha
+       lfs     fp13,.LC0-got_label@l(r9)
        mtlr    r11
-       lfd     fp13,0(r9)
+       cfi_same_value (lr)
 #else
        lis     r9,.LC0@ha
-       lfd     fp13,.LC0@l(r9)
+       lfs     fp13,.LC0@l(r9)
 #endif
        fabs    fp0,fp1
        fsubs   fp12,fp13,fp13  /* generate 0.0  */
@@ -70,23 +54,18 @@ ENTRY (__truncf)
        ble-    cr6,.L4
        fadds   fp1,fp1,fp13    /* x+= TWO23;  */
        fsubs   fp1,fp1,fp13    /* x-= TWO23;  */
-.L9:   
-       mtfsf   0x01,fp11       /* restore previous truncing mode.  */
+       fabs    fp1,fp1         /* if (x == 0.0)  */
+                               /* x = 0.0; */
+       mtfsf   0x01,fp11       /* restore previous rounding mode.  */
        blr
 .L4:
        bge-    cr6,.L9         /* if (x < 0.0)  */
        fsubs   fp1,fp1,fp13    /* x-= TWO23;  */
        fadds   fp1,fp1,fp13    /* x+= TWO23;  */
-       fcmpu   cr5,fp1,fp12    /* if (x > 0.0)  */
+       fnabs   fp1,fp1         /* if (x == 0.0)  */
+                               /* x = -0.0; */
+.L9:
        mtfsf   0x01,fp11       /* restore previous rounding mode.  */
-       bnelr+  cr5
-#ifdef SHARED
-       lwz     r9,.LC1@got(10)
-       lfd     fp1,0(r9)
-#else
-       lis     r9,.LC1@ha
-       lfd     fp1,.LC1@l(r9)
-#endif
        blr
        END (__truncf)