From: Kazu Hirata <kazu@cs.umass.edu>
Date: Wed, 3 Mar 2004 04:53:16 +0000 (+0000)
Subject: lib1funcs.asm (___fixunssfsi): Change the threshold to 0x4f.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=cb36ddbac11b060630d83fd15d45823951180fec;p=gcc.git

lib1funcs.asm (___fixunssfsi): Change the threshold to 0x4f.

	* config/h8300/lib1funcs.asm (___fixunssfsi): Change the
	threshold to 0x4f.

	Revert:
	2004-02-27  Kazu Hirata  <kazu@cs.umass.edu>
	* config/h8300/fixunssfsi.c (__fixunssfsi): Enable on H8/300
	as well.
	* config/h8300/lib1funcs.asm (___fixunssfsi): Remove.
	* config/h8300/t-h8300 (LIB1ASMFUNCS): Remove _fixunssfsi_asm.

From-SVN: r78818
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 8dc0903e0fe..98c43fc274a 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,15 @@
+2004-03-02  Kazu Hirata  <kazu@cs.umass.edu>
+
+	* config/h8300/lib1funcs.asm (___fixunssfsi): Change the
+	threshold to 0x4f.
+
+	Revert:
+	2004-02-27  Kazu Hirata  <kazu@cs.umass.edu>
+	* config/h8300/fixunssfsi.c (__fixunssfsi): Enable on H8/300
+	as well.
+	* config/h8300/lib1funcs.asm (___fixunssfsi): Remove.
+	* config/h8300/t-h8300 (LIB1ASMFUNCS): Remove _fixunssfsi_asm.
+
 2004-03-02  Kazu Hirata  <kazu@cs.umass.edu>
 
 	* doc/md.texi (cbranchmode4): New.
diff --git a/gcc/config/h8300/fixunssfsi.c b/gcc/config/h8300/fixunssfsi.c
index 0cd72dee048..06120ba4905 100644
--- a/gcc/config/h8300/fixunssfsi.c
+++ b/gcc/config/h8300/fixunssfsi.c
@@ -29,8 +29,10 @@ the Free Software Foundation, 59 Temple Place - Suite 330,
 Boston, MA 02111-1307, USA.  */
 
 /* The libgcc2.c implementation gets confused by our type setup and creates
-   a directly recursive call, so we do our own implementation.  */
+   a directly recursive call, so we do our own implementation.  For
+   the H8/300, that's in lib1funcs.asm, for H8/300H and H8S, it's here.  */
 
+#ifndef __H8300__
 long __fixunssfsi (float a);
 
 long
@@ -40,3 +42,4 @@ __fixunssfsi (float a)
     return (long) (a - 32768L) + 32768L;
   return (long) a;
 }
+#endif
diff --git a/gcc/config/h8300/lib1funcs.asm b/gcc/config/h8300/lib1funcs.asm
index bf981e050d0..8a7e5054256 100644
--- a/gcc/config/h8300/lib1funcs.asm
+++ b/gcc/config/h8300/lib1funcs.asm
@@ -806,3 +806,31 @@ L_skip2:
 
 #endif
 #endif /* L_mulsi3 */
+#ifdef L_fixunssfsi_asm
+/* For the h8300 we use asm to save some bytes, to
+   allow more programs to fit into the tiny address
+   space.  For the H8/300H and H8S, the C version is good enough.  */
+#ifdef __H8300__
+/* We still treat NANs different than libgcc2.c, but then, the
+   behavior is undefined anyways.  */
+	.global	___fixunssfsi
+___fixunssfsi:
+	cmp.b #0x4f,r0h
+	bge Large_num
+	jmp     @___fixsfsi
+Large_num:
+	bhi L_huge_num
+	xor.b #0x80,A0L
+	bmi L_shift8
+L_huge_num:
+	mov.w #65535,A0
+	mov.w A0,A1
+	rts
+L_shift8:
+	mov.b A0L,A0H
+	mov.b A1H,A0L
+	mov.b A1L,A1H
+	mov.b #0,A1L
+	rts
+#endif
+#endif /* L_fixunssfsi_asm */
diff --git a/gcc/config/h8300/t-h8300 b/gcc/config/h8300/t-h8300
index 476dc18884a..28ea2cf71bd 100644
--- a/gcc/config/h8300/t-h8300
+++ b/gcc/config/h8300/t-h8300
@@ -1,5 +1,6 @@
 LIB1ASMSRC = h8300/lib1funcs.asm
-LIB1ASMFUNCS = _cmpsi2 _ucmpsi2 _divhi3 _divsi3 _mulhi3 _mulsi3
+LIB1ASMFUNCS = _cmpsi2 _ucmpsi2 _divhi3 _divsi3 _mulhi3 _mulsi3 \
+  _fixunssfsi_asm
 
 LIB2FUNCS_EXTRA = \
 	$(srcdir)/config/h8300/clzhi2.c \