[PATCH 6/7] target/i386: Introduce cpu_compute_eflags_ccop

[Richard Henderson <richard.henderson@linaro.org>]

This is a generalization of cpu_compute_eflags, with a dynamic
value of cc_op, and is thus tcg specific.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/i386/cpu.h           |  2 ++
 target/i386/tcg/cc_helper.c | 10 ++++++++++
 2 files changed, 12 insertions(+)

diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index 6b05738079..285f26d99d 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -2379,6 +2379,8 @@ void cpu_x86_inject_mce(Monitor *mon, X86CPU *cpu, int bank,
 
 uint32_t cpu_cc_compute_all(CPUX86State *env1);
 
+uint32_t cpu_compute_eflags_ccop(CPUX86State *env, CCOp op);
+
 static inline uint32_t cpu_compute_eflags(CPUX86State *env)
 {
     uint32_t eflags = env->eflags;
diff --git a/target/i386/tcg/cc_helper.c b/target/i386/tcg/cc_helper.c
index f76e9cb8cf..8203682ca8 100644
--- a/target/i386/tcg/cc_helper.c
+++ b/target/i386/tcg/cc_helper.c
@@ -225,6 +225,16 @@ uint32_t cpu_cc_compute_all(CPUX86State *env)
     return helper_cc_compute_all(CC_DST, CC_SRC, CC_SRC2, CC_OP);
 }
 
+uint32_t cpu_compute_eflags_ccop(CPUX86State *env, CCOp op)
+{
+    uint32_t eflags;
+
+    eflags = helper_cc_compute_all(CC_DST, CC_SRC, CC_SRC2, op);
+    eflags |= env->df & DF_MASK;
+    eflags |= env->eflags & ~(VM_MASK | RF_MASK);
+    return eflags;
+}
+
 target_ulong helper_cc_compute_c(target_ulong dst, target_ulong src1,
                                  target_ulong src2, int op)
 {
-- 
2.34.1