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Use tree merge for single-module LLVM linking #3493

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Merged
lerno merged 3 commits into from
Sep 2, 2026
Merged

Use tree merge for single-module LLVM linking #3493

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788045c
Use tree merge for single-module LLVM linking
ManuLinares Aug 31, 2026
b43db25
Add a single `--single-module=yes` to ci_tests.sh
ManuLinares Sep 1, 2026
c6f8c7a
Merge branch 'master' into c3c_single-module
ManuLinares Sep 1, 2026
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1 change: 1 addition & 0 deletions scripts/tools/ci_tests.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -102,6 +102,7 @@ run_examples() {
run_c3c compile examples/hash.c3
run_c3c compile examples/http_server.c3
run_c3c compile-only examples/levenshtein.c3
run_c3c compile-only --single-module=yes examples/levenshtein.c3 # --single-module test
run_c3c compile examples/load_world.c3
run_c3c compile-only examples/map.c3
run_c3c compile examples/mandelbrot.c3
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22 changes: 18 additions & 4 deletions src/compiler/llvm_codegen.c
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Expand Up @@ -1692,11 +1692,25 @@ void **llvm_gen(Module** modules, int module_count)
vec_add(gen_contexts, llvm_gen_tests(modules, module_count, context));
}
int count = vec_size(gen_contexts);
for (int i = 1; i < count; i++)
while (count > 1)
{
GenContext *other = gen_contexts[i];
LLVMLinkModules2(first->module, other->module);
gencontext_destroy(other);
int new_count = 0;
for (int i = 0; i < count; i += 2)
{
if (i + 1 < count)
{
GenContext *dst = gen_contexts[i];
GenContext *src = gen_contexts[i + 1];
LLVMLinkModules2(dst->module, src->module);
gencontext_destroy(src);
gen_contexts[new_count++] = dst;
}
else
{
gen_contexts[new_count++] = gen_contexts[i];
}
}
count = new_count;
}
vec_resize(gen_contexts, 1);
return (void**)gen_contexts;
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