From d5d881d9e946351f00cbc851b965f62553f6e830 Mon Sep 17 00:00:00 2001
From: Michael Matz <matz@suse.de>
Date: Mon, 27 Jun 2016 20:21:57 +0200
Subject: x86-asm: Accept 'q' modifier

In inline extended asm '%q1' refers to the 64bit register of operand 1.
---
 tests/tcctest.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'tests')

diff --git a/tests/tcctest.c b/tests/tcctest.c
index 5851fb4..7fd8171 100644
--- a/tests/tcctest.c
+++ b/tests/tcctest.c
@@ -2584,6 +2584,17 @@ unsigned long mconstraint_test(struct struct1231 *r)
     return ret + a[0];
 }
 
+#ifdef __x86_64__
+int fls64(unsigned long long x)
+{
+  int bitpos = -1;
+  asm("bsrq %1,%q0"
+      : "+r" (bitpos)
+      : "rm" (x));
+  return bitpos + 1;
+}
+#endif
+
 unsigned int set;
 
 void asm_test(void)
-- 
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