[PATCH v2 22/27] llvm: give arguments a name

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Arguments, like all LLVMValues, are given a default name
but these name are simply '%0', '%1', ... and are thus not
very readable.

Fix this by giving them an explicit name 'ARG1', ... to
match the names used in sparse's linearized code.

Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@xxxxxxxxx>
---
 sparse-llvm.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/sparse-llvm.c b/sparse-llvm.c
index bbff47877..825bd0347 100644
--- a/sparse-llvm.c
+++ b/sparse-llvm.c
@@ -1076,6 +1076,17 @@ static void output_fn(LLVMModuleRef module, struct entrypoint *ep)
 
 	static int nr_bb;
 
+	/* give a name to each argument */
+	for (int i = 0; i < nr_args; i++) {
+		char name[MAX_PSEUDO_NAME];
+		LLVMValueRef arg;
+
+		arg = LLVMGetParam(function.fn, i);
+		snprintf(name, sizeof(name), "ARG%d", i+1);
+		LLVMSetValueName(arg, name);
+	}
+
+	/* create the BBs */
 	FOR_EACH_PTR(ep->bbs, bb) {
 		if (bb->generation == generation)
 			continue;
-- 
2.11.1

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