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[PATCH, pdp11] Fix 64 bit divide
- From: Paul Koning <paulkoning at comcast dot net>
- To: GCC Patches <gcc-patches at gcc dot gnu dot org>
- Date: Sun, 25 Nov 2018 12:41:18 -0500
- Subject: [PATCH, pdp11] Fix 64 bit divide
This fixes a number of testsuite failures in pdp11.
Committed.
paul
ChangeLog:
2018-11-25 Paul Koning <ni1d@arrl.net>
* config/pdp11/pdp11.h (TARGET_HAS_NO_HW_DIVIDE): Define.
Index: config/pdp11/pdp11.h
===================================================================
--- config/pdp11/pdp11.h (revision 266438)
+++ config/pdp11/pdp11.h (working copy)
@@ -143,6 +143,11 @@ extern const struct real_format pdp11_d_format;
/* Define this if move instructions will actually fail to work
when given unaligned data. */
#define STRICT_ALIGNMENT 1
+
+/* "HW_DIVIDE" actually means 64 by 32 bit divide. While some PDP11
+ models have hardware divide, it is for 32 by 16 bits only, so we
+ call this platform "no hardware divide". */
+#define TARGET_HAS_NO_HW_DIVIDE 1
/* Standard register usage. */