[Qemu-devel] [PULL 06/10] tcg/mips: Add use_mips32r6_instructions definition

[Richard Henderson <rth@twiddle.net>]

From: James Hogan <james.hogan@imgtec.com>

Add definition use_mips32r6_instructions to the MIPS TCG backend which
is constant 1 when built for MIPS release 6. This will be used to decide
between pre-R6 and R6 instruction encodings.

Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <1443788657-14537-4-git-send-email-james.hogan@imgtec.com>
---
 tcg/mips/tcg-target.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/tcg/mips/tcg-target.h b/tcg/mips/tcg-target.h
index f5ba52c..e579c10 100644
--- a/tcg/mips/tcg-target.h
+++ b/tcg/mips/tcg-target.h
@@ -96,6 +96,13 @@ extern bool use_mips32_instructions;
 extern bool use_mips32r2_instructions;
 #endif
 
+/* MIPS32R6 instruction set detection */
+#if defined(__mips_isa_rev) && (__mips_isa_rev >= 6)
+#define use_mips32r6_instructions  1
+#else
+#define use_mips32r6_instructions  0
+#endif
+
 /* optional instructions */
 #define TCG_TARGET_HAS_div_i32          1
 #define TCG_TARGET_HAS_rem_i32          1
-- 
2.4.3