Add jemalloc as an alternative malloc implementation for the Verilator
binary. When both tcmalloc and jemalloc are available, jemalloc is
preferred due to its better performance on RTLMeter.
The new --enable-jemalloc flag (default=check) mirrors the existing
--enable-tcmalloc behavior: auto-detected at configure time, supports
both static and dynamic linking, and is disabled when --enable-dev-asan
is active.
Factor out test execution into t/trace_*_common.py, which defines
a 'run' functions. All related t_trace_*py tests call this function.
Behaviour is partially encoded in the file name, which must be of the
form: t_trace_complex_<variant>_<mode>_<format>*.py, where '<variant>'
determines tracing options (default/params/structs), '<mode>' is the
compilation mode (--cc/--sc), and '<format>' determines the trace format
(vcd/fst/saif).
The part of the test name after '<format>' does not influence the test
directly and can be free form. If used, explicit 'verilator_flags2' is
passed to the 'run' function.
Used to incorrectly unroll 1D packed arrays of 'bit' or 'logic' into
elements when using --trace-structs if the array element type was given
via a typedef. Keep them as a single signal instead.
The lowerDistConstraints() function was not recursing into ConstraintIf
nodes, causing dist operators inside if-else blocks to remain unlowered
and trigger an internal error when ConstraintExprVisitor encountered them.
Fix by adding recursive handling of ConstraintIf nodes in lowerDistConstraints:
- Check for AstConstraintIf nodes before AstConstraintExpr
- Recursively process thensp() and elsesp() branches
- This ensures all dist operators are lowered regardless of nesting
Test case: t_randomize_dist_conditional.v demonstrates conditional dist:
constraint c {
if (randd) {
x dist { 8'd0 := 1, 8'd255 := 3 }; // 25% / 75%
} else {
x dist { 8'd0 := 3, 8'd255 := 1 }; // 75% / 25%
}
}
Fixes#7221
Also add array bounds and struct/union member counts to trace pushPrefix
(not used by vcd/fst/saif). Together these improve consistency in some
waveform formats.
Yangyu Chen
Yilou Wang
Artur Bieniek
Geza Lore
Wilson Snyder
Christian Hecken
Rahul Behl
Pawel Kojma
em2machine
Veripool API Bot
dependabot[bot]
Rahul Behl
github action
Julian Carrier
Ryszard Rozak
Nick Brereton