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authorEddie Hung <eddie@fpgeh.com>2020-02-13 10:30:29 -0800
committerEddie Hung <eddie@fpgeh.com>2020-02-27 10:17:29 -0800
commit7c92b6852f3bcc962e72bb787ac51e3f4324a4fb (patch)
treebc2010addc0bc4ef2f4f7be735a56505de1fbf88
parentfb60d82971a9de5312467c4c192148ab546504dc (diff)
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abc9_ops: sort LUT delays to be ascending
-rw-r--r--passes/techmap/abc9_ops.cc5
1 files changed, 4 insertions, 1 deletions
diff --git a/passes/techmap/abc9_ops.cc b/passes/techmap/abc9_ops.cc
index 61a3880b7..e1ab70f11 100644
--- a/passes/techmap/abc9_ops.cc
+++ b/passes/techmap/abc9_ops.cc
@@ -617,7 +617,8 @@ void prep_lut(RTLIL::Design *design, int maxlut)
}
if (maxlut && GetSize(specify) > maxlut)
continue;
- // ABC requires ascending LUT input delays
+ // ABC requires non-decreasing LUT input delays
+ std::sort(specify.begin(), specify.end());
table.emplace_back(GetSize(specify), module->name, it->second.as_int(), std::move(specify));
}
// ABC requires ascending size
@@ -777,6 +778,8 @@ void prep_box(RTLIL::Design *design)
log_assert(GetSize(src) == GetSize(dst));
for (auto i = 0; i < GetSize(src); i++) {
auto r = table.insert(std::make_pair(src[i],dst[i]));
+ if (!r.second)
+ log_error("Module '%s' contains multiple specify cells for SRC '%s' and DST '%s'.\n", log_id(module), log_signal(src[i]), log_signal(dst[i]));
log_assert(r.second);
r.first->second = std::to_string(max);
}