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authorConnor Abbott <[email protected]>2019-02-18 17:28:32 +0100
committerConnor Abbott <[email protected]>2019-05-02 16:14:06 +0200
commit6ec4ed48fc2056d3475e5e60de7c34fe42f8fd33 (patch)
treeca05ade051d03141bc05cc1051a0dc3c91c3d54a /src/compiler/nir
parent7ce86e69381ebbff495f6a3f6fd716f58df9bd10 (diff)
nir/search: Add debugging code to dump the pattern matched
This was useful while debugging the previous commit. Reviewed-by: Jason Ekstrand <[email protected]>
Diffstat (limited to 'src/compiler/nir')
-rw-r--r--src/compiler/nir/nir_search.c75
1 files changed, 75 insertions, 0 deletions
diff --git a/src/compiler/nir/nir_search.c b/src/compiler/nir/nir_search.c
index c8acdfb46b4..6d3fbf7f7ba 100644
--- a/src/compiler/nir/nir_search.c
+++ b/src/compiler/nir/nir_search.c
@@ -530,6 +530,73 @@ construct_value(nir_builder *build,
}
}
+MAYBE_UNUSED static void dump_value(const nir_search_value *val)
+{
+ switch (val->type) {
+ case nir_search_value_constant: {
+ const nir_search_constant *sconst = nir_search_value_as_constant(val);
+ switch (sconst->type) {
+ case nir_type_float:
+ printf("%f", sconst->data.d);
+ break;
+ case nir_type_int:
+ printf("%"PRId64, sconst->data.i);
+ break;
+ case nir_type_uint:
+ printf("0x%"PRIx64, sconst->data.u);
+ break;
+ default:
+ unreachable("bad const type");
+ }
+ break;
+ }
+
+ case nir_search_value_variable: {
+ const nir_search_variable *var = nir_search_value_as_variable(val);
+ if (var->is_constant)
+ printf("#");
+ printf("%c", var->variable + 'a');
+ break;
+ }
+
+ case nir_search_value_expression: {
+ const nir_search_expression *expr = nir_search_value_as_expression(val);
+ printf("(");
+ if (expr->inexact)
+ printf("~");
+ switch (expr->opcode) {
+#define CASE(n) \
+ case nir_search_op_##n: printf(#n); break;
+ CASE(f2b)
+ CASE(b2f)
+ CASE(b2i)
+ CASE(i2b)
+ CASE(i2i)
+ CASE(f2i)
+ CASE(i2f)
+#undef CASE
+ default:
+ printf("%s", nir_op_infos[expr->opcode].name);
+ }
+
+ unsigned num_srcs = 1;
+ if (expr->opcode <= nir_last_opcode)
+ num_srcs = nir_op_infos[expr->opcode].num_inputs;
+
+ for (unsigned i = 0; i < num_srcs; i++) {
+ printf(" ");
+ dump_value(expr->srcs[i]);
+ }
+
+ printf(")");
+ break;
+ }
+ }
+
+ if (val->bit_size > 0)
+ printf("@%d", val->bit_size);
+}
+
nir_ssa_def *
nir_replace_instr(nir_builder *build, nir_alu_instr *instr,
const nir_search_expression *search,
@@ -567,6 +634,14 @@ nir_replace_instr(nir_builder *build, nir_alu_instr *instr,
if (!found)
return NULL;
+#if 0
+ printf("matched: ");
+ dump_value(&search->value);
+ printf(" -> ");
+ dump_value(replace);
+ printf(" ssa_%d\n", instr->dest.dest.ssa.index);
+#endif
+
build->cursor = nir_before_instr(&instr->instr);
nir_alu_src val = construct_value(build, replace,