[v4,19/63] llvm: give a name to call's return values

Commit Message

Luc Van Oostenryck March 21, 2017, 12:15 a.m. UTC

Currently, a name is given to the result of instruction like
binops, compares, ... but not to function calls.

Functionally, it doesn't change anything but those names are
useful by easing reading while debugging, reading the generated
code, ...

Fix this by giving a name to OP_CALL's result too.

Signed-off-by: Luc Van Oostenryck <[e-mail]>
---
 sparse-llvm.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

Patch

diff --git a/sparse-llvm.c b/sparse-llvm.c
index b9176e19d..dd7ff3398 100644
--- a/sparse-llvm.c
+++ b/sparse-llvm.c
@@ -297,6 +297,9 @@  static void pseudo_name(pseudo_t pseudo, char *buf)
 	case PSEUDO_PHI:
 		snprintf(buf, MAX_PSEUDO_NAME, "PHI%d", pseudo->nr);
 		break;
+	case PSEUDO_VOID:
+		buf[0] = '\0';
+		break;
 	default:
 		assert(0);
 	}
@@ -708,6 +711,8 @@  static void output_op_call(struct function *fn, struct instruction *insn)
 	int n_arg = 0, i;
 	struct instruction *arg;
 	LLVMValueRef *args;
+	char name[64];
+
 
 	n_arg = instruction_list_size(insn->arguments);
 	args = calloc(n_arg, sizeof(LLVMValueRef));
@@ -718,7 +723,8 @@  static void output_op_call(struct function *fn, struct instruction *insn)
 	} END_FOR_EACH_PTR(arg);
 
 	func = pseudo_to_value(fn, insn, insn->func);
-	target = LLVMBuildCall(fn->builder, func, args, n_arg, "");
+	pseudo_name(insn->target, name);
+	target = LLVMBuildCall(fn->builder, func, args, n_arg, name);
 
 	insn->target->priv = target;
 }