From 17c5d0e1d12229f6b720708748723811f7f2acd3 Mon Sep 17 00:00:00 2001
From: John Hodge <tpg@ucc.asn.au>
Date: Thu, 3 Jan 2019 22:58:24 +0800
Subject: Lower MIR - Allow "+" at the start of asm output specifiers

---
 src/mir/from_hir.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/mir/from_hir.cpp b/src/mir/from_hir.cpp
index bea8a38c..17de43c2 100644
--- a/src/mir/from_hir.cpp
+++ b/src/mir/from_hir.cpp
@@ -544,7 +544,7 @@ namespace {
             // Outputs can also (sometimes) be rvalues (only for `*m`?)
             for(auto& v : node.m_outputs) {
                 this->visit_node_ptr(v.value);
-                if( v.spec[0] != '=' )
+                if( v.spec[0] != '=' && v.spec[0] != '+' )  // TODO: what does '+' mean?
                     ERROR(node.span(), E0000, "Assembly output specifiers must start with =");
                 ::MIR::LValue   lv;
                 if(v.spec[1] == '*')
-- 
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