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-rw-r--r--sysdeps/powerpc/powerpc64/fpu/s_truncf.S21
1 files changed, 11 insertions, 10 deletions
diff --git a/sysdeps/powerpc/powerpc64/fpu/s_truncf.S b/sysdeps/powerpc/powerpc64/fpu/s_truncf.S
index 1456e7f434..b38b722a6f 100644
--- a/sysdeps/powerpc/powerpc64/fpu/s_truncf.S
+++ b/sysdeps/powerpc/powerpc64/fpu/s_truncf.S
@@ -1,5 +1,5 @@
 /* truncf function.  PowerPC64 version.
-   Copyright (C) 2004, 2006 Free Software Foundation, Inc.
+   Copyright (C) 2004 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
@@ -21,7 +21,9 @@
 
 	.section	".toc","aw"
 .LC0:	/* 2**23 */
-	.tc FD_4b000000_0[TC],0x4b00000000000000
+	.tc FD_41600000_0[TC],0x4160000000000000
+.LC2:	/* -0.0 */
+	.tc FD_80000000_0[TC],0x8000000000000000
 	.section	".text"
 	
 /* float [fp1] truncf (float x [fp1])
@@ -31,10 +33,10 @@
    We set "round toward Zero" mode and trunc by adding +-2**23 then
    subtracting +-2**23.  */
 
-EALIGN (__truncf, 4, 0)
+ENTRY (__truncf)
 	CALL_MCOUNT 0
 	mffs	fp11		/* Save current FPU rounding mode.  */
-	lfs	fp13,.LC0@toc(2)
+	lfd	fp13,.LC0@toc(2)
 	fabs	fp0,fp1
 	fsubs	fp12,fp13,fp13	/* generate 0.0  */
 	fcmpu	cr7,fp0,fp13	/* if (fabs(x) > TWO23)  */
@@ -44,18 +46,17 @@ EALIGN (__truncf, 4, 0)
 	ble-	cr6,.L4
 	fadds	fp1,fp1,fp13	/* x+= TWO23;  */
 	fsubs	fp1,fp1,fp13	/* x-= TWO23;  */
-	fabs	fp1,fp1		/* if (x == 0.0)  */
-				/* x = 0.0; */
-	mtfsf	0x01,fp11	/* restore previous rounding mode.  */
+.L9:	
+	mtfsf	0x01,fp11	/* restore previous truncing mode.  */
 	blr
 .L4:
 	bge-	cr6,.L9		/* if (x < 0.0)  */
 	fsubs	fp1,fp1,fp13	/* x-= TWO23;  */
 	fadds	fp1,fp1,fp13	/* x+= TWO23;  */
-	fnabs	fp1,fp1		/* if (x == 0.0)  */
-				/* x = -0.0; */
-.L9:
+	fcmpu	cr5,fp1,fp12	/* if (x > 0.0)  */
 	mtfsf	0x01,fp11	/* restore previous rounding mode.  */
+	bnelr+	cr5
+	lfd	fp1,.LC2@toc(2)	/* x must be -0.0 for the 0.0 case.  */	
 	blr
 	END (__truncf)