Merge from trunk revision 273743.

From-SVN: r273744

6 files changed, 24 insertions, 15 deletions

diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog
index f9f900b..7997ad8 100644
--- a/libgcc/ChangeLog
+++ b/libgcc/ChangeLog
@@ -1,3 +1,20 @@
+2019-07-22  Martin Liska  <mliska@suse.cz>
+
+	* config/pa/stublib.c: Remove stub symbol __gnu_lto_v1.
+	* config/pa/t-stublib: Likewise.
+
+2019-07-22  Stafford Horne  <shorne@gmail.com>
+
+	PR target/90362
+	* config/or1k/lib1funcs.S (__udivsi3): Change l.sfeqi
+	to l.sfeq and l.sfltsi to l.sflts equivalents as the immediate
+	instructions are not available on every processor.  Change a
+	l.bnf to l.bf to fix logic issue.
+
+2019-07-04  Iain Sandoe  <iain@sandoe.co.uk>
+
+	* config.host: Remove reference to t-darwin8.
+
 2019-07-03  Iain Sandoe  <iain@sandoe.co.uk>
 
 	* config.host (powerpc-*-darwin*,powerpc64-*-darwin*): Revise crt
diff --git a/libgcc/config.host b/libgcc/config.host
index e11a065..f5ca779 100644
--- a/libgcc/config.host
+++ b/libgcc/config.host
@@ -1084,11 +1084,9 @@ powerpc-*-darwin*)
 	case ${host} in
 	*-*-darwin9* | *-*-darwin[12][0-9]*)
 	  # libSystem contains unwind information for signal frames since
-	  # Darwin 9.  We don't need longcall either.
+	  # Darwin 9.
 	  ;;
 	*)
-	  # prepend the fragment forcing darwin8 codegen.
-	  tmake_file="rs6000/t-darwin8 $tmake_file"
 	  md_unwind_header=rs6000/darwin-unwind.h
 	  ;;
 	esac
diff --git a/libgcc/config/or1k/lib1funcs.S b/libgcc/config/or1k/lib1funcs.S
index d210392..6d05897 100644
--- a/libgcc/config/or1k/lib1funcs.S
+++ b/libgcc/config/or1k/lib1funcs.S
@@ -68,18 +68,18 @@ __udivmodsi3_internal:
 	   is not clobbered by this routine, and use that as to
 	   save a return address without creating a stack frame.  */
 
-	l.sfeqi		r4, 0		/* division by zero; return 0.  */
+	l.sfeq		r4, r0		/* division by zero; return 0.  */
 	l.ori		r11, r0, 0	/* initial quotient */
 	l.bf		9f
 	 l.ori		r12, r3, 0	/* initial remainder */
 
 	/* Given X/Y, shift Y left until Y >= X.  */
 	l.ori		r6, r0, 1	/* mask = 1 */
-1:	l.sfltsi	r4, 0		/* y has msb set */
+1:	l.sflts		r4, r0		/* y has msb set */
 	l.bf		2f
 	 l.sfltu	r4, r12		/* y < x */
 	l.add		r4, r4, r4	/* y <<= 1 */
-	l.bnf		1b
+	l.bf		1b
 	 l.add		r6, r6, r6	/* mask <<= 1 */
 
 	/* Shift Y back to the right again, subtracting from X.  */
diff --git a/libgcc/config/pa/stublib.c b/libgcc/config/pa/stublib.c
index b47afe1..7e79dbf 100644
--- a/libgcc/config/pa/stublib.c
+++ b/libgcc/config/pa/stublib.c
@@ -115,7 +115,3 @@ pthread_once (void)
   return 0;
 }
 #endif
-
-#ifdef L_gnu_lto_v1
-char gnu_lto_v1;
-#endif
diff --git a/libgcc/config/pa/t-stublib b/libgcc/config/pa/t-stublib
index 0a6223d..8004c1e 100644
--- a/libgcc/config/pa/t-stublib
+++ b/libgcc/config/pa/t-stublib
@@ -3,8 +3,7 @@ LIBGCCSTUB_OBJS = rfi-stub.o dfi-stub.o ritm-stub.o ditm-stub.o \
 	pthread_default_stacksize_np-stub.o \
 	pthread_mutex_lock-stub.o \
 	pthread_mutex_unlock-stub.o \
-	pthread_once-stub.o \
-	gnu_lto_v1-stub.o
+	pthread_once-stub.o
 
 rfi-stub.o: $(srcdir)/config/pa/stublib.c
 	$(gcc_compile) -c -O2 -DL_register_frame_info $<
@@ -36,9 +35,6 @@ pthread_mutex_unlock-stub.o: $(srcdir)/config/pa/stublib.c
 pthread_once-stub.o: $(srcdir)/config/pa/stublib.c
 	$(gcc_compile) -c -O2 -DL_pthread_once $<
 
-gnu_lto_v1-stub.o: $(srcdir)/config/pa/stublib.c
-	$(gcc_compile) -c -O2 -DL_gnu_lto_v1 $<
-
 libgcc_stub.a: $(LIBGCCSTUB_OBJS)
 	-rm -rf $@
 	$(AR) rc $@ $(LIBGCCSTUB_OBJS)
diff --git a/libgcc/generic-morestack.c b/libgcc/generic-morestack.c
index 0f6f000..2dc3733 100644
--- a/libgcc/generic-morestack.c
+++ b/libgcc/generic-morestack.c
@@ -23,6 +23,8 @@ 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/>.  */
 
+#pragma GCC optimize ("no-isolate-erroneous-paths-dereference")
+
 /* powerpc 32-bit not supported.  */
 #if !defined __powerpc__ || defined __powerpc64__