[Qemu-devel] [PATCH 06/18] tcg/arm: add defines for the allowed instructions set

[Aurelien Jarno]

Use a set of #define to define the allowed ARM instructions, depending
on the __ARM_ARCH_*__ GCC defines.

Signed-off-by: Aurelien Jarno <address@hidden>
---
 tcg/arm/tcg-target.c |   27 ++++++++++++++++++++++++---
 1 files changed, 24 insertions(+), 3 deletions(-)

diff --git a/tcg/arm/tcg-target.c b/tcg/arm/tcg-target.c
index ee5f723..cae6385 100644
--- a/tcg/arm/tcg-target.c
+++ b/tcg/arm/tcg-target.c
@@ -22,6 +22,27 @@
  * THE SOFTWARE.
  */
 
+#if defined(__ARM_ARCH_5T__) || \
+    defined(__ARM_ARCH_5TE__) || \
+    defined(__ARM_ARCH_5TEJ__) || \
+    defined(__ARM_ARCH_6__) || \
+    defined(__ARM_ARCH_7A__) || \
+    defined(__ARM_ARCH_7__)
+# define USE_ARMV5_INSTRUCTIONS 1
+#endif
+
+#if defined(__ARM_ARCH_6__) || \
+    defined(__ARM_ARCH_7A__) || \
+    defined(__ARM_ARCH_7__)
+# define USE_ARMV6_INSTRUCTIONS 1
+#endif
+
+#if defined(__ARM_ARCH_7A__) || \
+    defined(__ARM_ARCH_7__)
+# define USE_ARMV7_INSTRUCTIONS 1
+#endif
+
+
 #ifndef NDEBUG
 static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = {
     "%r0",
@@ -361,7 +382,7 @@ static inline void tcg_out_movi32(TCGContext *s,
                 tcg_out_dat_imm(s, cond, ARITH_ADD, rd, 15, offset) :
                 tcg_out_dat_imm(s, cond, ARITH_SUB, rd, 15, -offset);
 
-#ifdef __ARM_ARCH_7A__
+#ifdef USE_ARMV7_INSTRUCTIONS
     /* use movw/movt */
     /* movw */
     tcg_out32(s, (cond << 28) | 0x03000000 | (rd << 12)
@@ -1433,7 +1454,7 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode 
opc,
         break;
 
     case INDEX_op_ext8s_i32:
-#ifdef __ARM_ARCH_7A__
+#ifdef USE_ARMV7_INSTRUCTIONS
         /* sxtb */
         tcg_out32(s, 0xe6af0070 | (args[0] << 12) | args[1]);
 #else
@@ -1444,7 +1465,7 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode 
opc,
 #endif
         break;
     case INDEX_op_ext16s_i32:
-#ifdef __ARM_ARCH_7A__
+#ifdef USE_ARMV7_INSTRUCTIONS
         /* sxth */
         tcg_out32(s, 0xe6bf0070 | (args[0] << 12) | args[1]);
 #else
-- 
1.7.0.4