From: David Given <dg@cowlark.com>
Date: Sat, 15 Oct 2016 17:14:25 +0000 (+0200)
Subject: Fix yet another bug to do with IR register outputs.
X-Git-Url: https://git.ndcode.org/public/gitweb.cgi?a=commitdiff_plain;h=0eb32e7553b0e2e161a4f9802e3a1d98681bf235;p=ack.git

Fix yet another bug to do with IR register outputs.
---

diff --git a/mach/proto/mcg/pass_instructionselection.c b/mach/proto/mcg/pass_instructionselection.c
index 752648de5..52adc7b34 100644
--- a/mach/proto/mcg/pass_instructionselection.c
+++ b/mach/proto/mcg/pass_instructionselection.c
@@ -205,7 +205,7 @@ static struct insn* walk_instructions(struct burm_node* node, int goal)
             hop_print('I', current_hop);
             array_append(&current_bb->hops, current_hop);
 
-            if (goal != burm_stmt_NT)
+            if ((goal != burm_stmt_NT) && !insn->ir->result)
                 insn->ir->result = insn->hop->output;
         }
     }