From: Richard Henderson <rth@twiddle.net>
Date: Tue, 20 Jun 2017 18:34:55 +0000 (-0700)
Subject: tcg: Return NULL temp for TCG_CALL_DUMMY_ARG
X-Git-Tag: v2.11.0-rc0~27^2~44
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c6c7d84df8889b9d6298466999b88a8a42e5f976;p=thirdparty%2Fqemu.git

tcg: Return NULL temp for TCG_CALL_DUMMY_ARG

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
---

diff --git a/tcg/tcg.h b/tcg/tcg.h
index fc4d1ed58b6..5fcdec1fc5b 100644
--- a/tcg/tcg.h
+++ b/tcg/tcg.h
@@ -731,7 +731,7 @@ extern bool parallel_cpus;
 
 static inline TCGTemp *arg_temp(TCGArg a)
 {
-    return &tcg_ctx.temps[a];
+    return a == TCG_CALL_DUMMY_ARG ? NULL : &tcg_ctx.temps[a];
 }
 
 static inline void tcg_set_insn_param(int op_idx, int arg, TCGArg v)