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Add raise_error pass

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Raise errors from attributes for testing.
I want it for bugpoint tests but it could be useful elsewhere.
This commit is contained in:
Krystine Sherwin 2025-05-13 15:14:33 +12:00
parent 50da04a75e
commit 107b768cdd
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5 changed files with 92 additions and 0 deletions
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1
kernel/constids.inc
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@ -284,3 +284,4 @@ X(A_WIDTHS)
X(B_WIDTHS) X(B_WIDTHS)
X(C_WIDTHS) X(C_WIDTHS)
X(C_SIGNED) X(C_SIGNED)
X(raise_error)

1
passes/tests/Makefile.inc
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@ -2,4 +2,5 @@
OBJS += passes/tests/test_autotb.o OBJS += passes/tests/test_autotb.o
OBJS += passes/tests/test_cell.o OBJS += passes/tests/test_cell.o
OBJS += passes/tests/test_abcloop.o OBJS += passes/tests/test_abcloop.o
OBJS += passes/tests/raise_error.o

61
passes/tests/raise_error.cc Normal file
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@ -0,0 +1,61 @@
#include "kernel/yosys.h"
USING_YOSYS_NAMESPACE
PRIVATE_NAMESPACE_BEGIN
struct RaiseErrorPass : public Pass {
RaiseErrorPass() : Pass("raise_error", "raise errors from attributes") { }
void help() override
{
// |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
log("\n");
log(" raise_error [selection]\n");
log("\n");
log("Test error handling by raising arbitrary errors. This pass iterates over the\n");
log("design (or selection of it) checking for objects with the 'raise_error'\n");
log("attribute set.\n");
log("\n");
}
void execute(vector<string> args, RTLIL::Design *design) override
{
log_header(design, "Executing RAISE_ERROR pass.\n");
extra_args(args, 1, design, true);
RTLIL::NamedObject *err_obj = nullptr;
for (auto mod : design->all_selected_modules()) {
if (mod->has_attribute(ID::raise_error)) {
err_obj = mod->clone();
break;
}
for (auto memb : mod->selected_members()) {
if (memb->has_attribute(ID::raise_error)) {
err_obj = memb;
break;
}
}
if (err_obj != nullptr) break;
}
if (err_obj != nullptr) {
log("Raising error from '%s'.\n", log_id(err_obj));
auto err_no = err_obj->attributes[ID::raise_error].as_int();
if (err_no < 256) {
log_flush();
#if defined(_MSC_VER)
_exit(err_no);
#else
_Exit(err_no);
#endif
} else {
auto err_msg = err_obj->get_string_attribute(ID::raise_error);
log_error("%s\n", err_msg.c_str());
}
} else {
log("'raise_error' attribute not found\n");
}
}
} RaiseErrorPass;
PRIVATE_NAMESPACE_END

2
tests/bugpoint/.gitignore vendored Normal file
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@ -0,0 +1,2 @@
*.il
*.log

27
tests/bugpoint/err.ys Normal file
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@ -0,0 +1,27 @@
read_verilog -noblackbox << EOF
(* raise_error=7 *)
module top();
endmodule
(* raise_error="help me" *)
module other();
endmodule
module zzy();
endmodule
EOF
select -assert-mod-count 3 =*
design -stash read
# raise_error with int exits with status
design -load read
bugpoint -yosys ../../yosys -command raise_error -expect-return 7
select -assert-mod-count 1 =*
select -assert-mod-count 1 top
# raise_error with string prints message
design -load read
rename top abc
bugpoint -yosys ../../yosys -command raise_error -grep "help me"
select -assert-mod-count 1 =*
select -assert-mod-count 1 other