From 1ff8ba48a2958b5917653e1bc2ddd5ff22097fe7 Mon Sep 17 00:00:00 2001
From: Andrew Stubbs <ams@codesourcery.com>
Date: Fri, 16 Jun 2023 17:48:23 +0100
Subject: [PATCH] amdgcn: Delete inactive libfuncs
The HImode libfuncs weren't called and trying to enable them fails because
TARGET_PROMOTE_FUNCTION_MODE wants to widen the arguments but the signedness
isn't known.
libgcc/ChangeLog:
* config/gcn/lib2-gcn.h (QItype, UQItype, HItype, UHItype): Delete.
(__divhi3, __modhi3, __udivhi3, __umodhi3): Delete.
* config/gcn/t-amdgcn: Don't build lib2-divmod-hi.c.
* config/gcn/lib2-divmod-hi.c: Removed.
---
libgcc/config/gcn/lib2-divmod-hi.c | 117 -----------------------------
libgcc/config/gcn/lib2-gcn.h | 8 --
libgcc/config/gcn/t-amdgcn | 1 -
3 files changed, 126 deletions(-)
delete mode 100644 libgcc/config/gcn/lib2-divmod-hi.c
diff --git a/libgcc/config/gcn/lib2-divmod-hi.c b/libgcc/config/gcn/lib2-divmod-hi.c
deleted file mode 100644
index f4584aabcd94..000000000000
--- a/libgcc/config/gcn/lib2-divmod-hi.c
+++ /dev/null
@@ -1,117 +0,0 @@
-/* Copyright (C) 2012-2023 Free Software Foundation, Inc.
- Contributed by Altera and Mentor Graphics, Inc.
-
-This file is free software; you can redistribute it and/or modify it
-under the terms of the GNU General Public License as published by the
-Free Software Foundation; either version 3, or (at your option) any
-later version.
-
-This file is distributed in the hope that it will be useful, but
-WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-General Public License for more details.
-
-Under Section 7 of GPL version 3, you are granted additional
-permissions described in the GCC Runtime Library Exception, version
-3.1, as published by the Free Software Foundation.
-
-You should have received a copy of the GNU General Public License and
-a copy of the GCC Runtime Library Exception along with this program;
-see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
-<http://www.gnu.org/licenses/>. */
-
-#include "lib2-gcn.h"
-
-/* 16-bit HI divide and modulo as used in gcn. */
-
-static UHItype
-udivmodhi4 (UHItype num, UHItype den, word_type modwanted)
-{
- UHItype bit = 1;
- UHItype res = 0;
-
- while (den < num && bit && !(den & (1L<<15)))
- {
- den <<=1;
- bit <<=1;
- }
- while (bit)
- {
- if (num >= den)
- {
- num -= den;
- res |= bit;
- }
- bit >>=1;
- den >>=1;
- }
- if (modwanted)
- return num;
- return res;
-}
-
-
-HItype
-__divhi3 (HItype a, HItype b)
-{
- word_type neg = 0;
- HItype res;
-
- if (a < 0)
- {
- a = -a;
- neg = !neg;
- }
-
- if (b < 0)
- {
- b = -b;
- neg = !neg;
- }
-
- res = udivmodhi4 (a, b, 0);
-
- if (neg)
- res = -res;
-
- return res;
-}
-
-
-HItype
-__modhi3 (HItype a, HItype b)
-{
- word_type neg = 0;
- HItype res;
-
- if (a < 0)
- {
- a = -a;
- neg = 1;
- }
-
- if (b < 0)
- b = -b;
-
- res = udivmodhi4 (a, b, 1);
-
- if (neg)
- res = -res;
-
- return res;
-}
-
-
-UHItype
-__udivhi3 (UHItype a, UHItype b)
-{
- return udivmodhi4 (a, b, 0);
-}
-
-
-UHItype
-__umodhi3 (UHItype a, UHItype b)
-{
- return udivmodhi4 (a, b, 1);
-}
-
diff --git a/libgcc/config/gcn/lib2-gcn.h b/libgcc/config/gcn/lib2-gcn.h
index 645245b21287..67ad9bafc199 100644
--- a/libgcc/config/gcn/lib2-gcn.h
+++ b/libgcc/config/gcn/lib2-gcn.h
@@ -27,10 +27,6 @@
/* Types. */
-typedef char QItype __attribute__ ((mode (QI)));
-typedef unsigned char UQItype __attribute__ ((mode (QI)));
-typedef short HItype __attribute__ ((mode (HI)));
-typedef unsigned short UHItype __attribute__ ((mode (HI)));
typedef int SItype __attribute__ ((mode (SI)));
typedef unsigned int USItype __attribute__ ((mode (SI)));
typedef int DItype __attribute__ ((mode (DI)));
@@ -48,10 +44,6 @@ extern SItype __divsi3 (SItype, SItype);
extern SItype __modsi3 (SItype, SItype);
extern USItype __udivsi3 (USItype, USItype);
extern USItype __umodsi3 (USItype, USItype);
-extern HItype __divhi3 (HItype, HItype);
-extern HItype __modhi3 (HItype, HItype);
-extern UHItype __udivhi3 (UHItype, UHItype);
-extern UHItype __umodhi3 (UHItype, UHItype);
extern SItype __mulsi3 (SItype, SItype);
#endif /* LIB2_GCN_H */
diff --git a/libgcc/config/gcn/t-amdgcn b/libgcc/config/gcn/t-amdgcn
index 38bde54a0966..e64953e6185a 100644
--- a/libgcc/config/gcn/t-amdgcn
+++ b/libgcc/config/gcn/t-amdgcn
@@ -1,6 +1,5 @@
LIB2ADD += $(srcdir)/config/gcn/atomic.c \
$(srcdir)/config/gcn/lib2-divmod.c \
- $(srcdir)/config/gcn/lib2-divmod-hi.c \
$(srcdir)/config/gcn/lib2-divmod-di.c \
$(srcdir)/config/gcn/lib2-bswapti2.c \
$(srcdir)/config/gcn/unwind-gcn.c
--
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