From ffb1eabf4525d5e5c9e6d62894f63c775f876eab Mon Sep 17 00:00:00 2001
From: David Given <dg@cowlark.com>
Date: Wed, 19 Oct 2016 23:27:53 +0200
Subject: [PATCH] Floating point promotion is less buggy.

---
 mach/proto/mcg/pass_promotefloatops.c | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/mach/proto/mcg/pass_promotefloatops.c b/mach/proto/mcg/pass_promotefloatops.c
index ffea3f0dc..87db1e47d 100644
--- a/mach/proto/mcg/pass_promotefloatops.c
+++ b/mach/proto/mcg/pass_promotefloatops.c
@@ -86,8 +86,21 @@ static void modify_promotable_irs(void)
     {
         struct ir* ir = promotable.item[i];
         
-        if (ir->opcode != IR_PHI)
-            ir->opcode++;
+        switch (ir->opcode)
+        {
+            case IR_ADDF:
+            case IR_SUBF:
+            case IR_MULF:
+            case IR_DIVF:
+            case IR_NEGF:
+            case IR_PHI:
+            case IR_NOP:
+                break;
+
+            default:
+                ir->opcode++;
+                break;
+        }
     }
 }