diff mbox series

[v3,22/30] target/ppc: Introduce macros to check isa extensions

Message ID 20210430011543.1017113-23-richard.henderson@linaro.org
State Superseded
Headers show
Series Base for adding PowerPC 64-bit instructions | expand

Commit Message

Richard Henderson April 30, 2021, 1:15 a.m. UTC 
These will be used by the decodetree trans_* functions
to early-exit when the instruction set is not enabled.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

---
 target/ppc/translate.c | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

-- 
2.25.1

Comments

Philippe Mathieu-Daudé May 3, 2021, 10:37 p.m. UTC | #1 
On 4/30/21 3:15 AM, Richard Henderson wrote:
> These will be used by the decodetree trans_* functions

> to early-exit when the instruction set is not enabled.

> 

> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

> ---

>  target/ppc/translate.c | 26 ++++++++++++++++++++++++++

>  1 file changed, 26 insertions(+)


Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
diff mbox series

Patch

diff --git a/target/ppc/translate.c b/target/ppc/translate.c
index 112afd02d5..cde12e9d38 100644
--- a/target/ppc/translate.c
+++ b/target/ppc/translate.c
@@ -6876,6 +6876,32 @@  static inline void set_avr64(int regno, TCGv_i64 src, bool high)
     tcg_gen_st_i64(src, cpu_env, avr64_offset(regno, high));
 }
 
+/*
+ * Helpers for trans_* functions to check for specific insns flags.
+ * Use token pasting to ensure that we use the proper flag with the
+ * proper variable.
+ */
+#define REQUIRE_INSNS_FLAGS(CTX, NAME) \
+    do {                                                \
+        if (((CTX)->insns_flags & PPC_##NAME) == 0) {   \
+            return false;                               \
+        }                                               \
+    } while (0)
+
+#define REQUIRE_INSNS_FLAGS2(CTX, NAME) \
+    do {                                                \
+        if (((CTX)->insns_flags2 & PPC2_##NAME) == 0) { \
+            return false;                               \
+        }                                               \
+    } while (0)
+
+/* Then special-case the check for 64-bit so that we elide code for ppc32. */
+#if TARGET_LONG_BITS == 32
+# define REQUIRE_64BIT(CTX)  return false
+#else
+# define REQUIRE_64BIT(CTX)  REQUIRE_INSNS_FLAGS(CTX, 64B)
+#endif
+
 #include "translate/fp-impl.c.inc"
 
 #include "translate/vmx-impl.c.inc"