[Qemu-devel] [PATCH v2 09/16] target/arm: Add predicate registers for SVE

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

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/arm/cpu.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/target/arm/cpu.h b/target/arm/cpu.h
index 57d805b5d8..132da359b5 100644
--- a/target/arm/cpu.h
+++ b/target/arm/cpu.h
@@ -186,6 +186,15 @@ typedef struct ARMVectorReg {
     uint64_t d[2 * ARM_MAX_VQ] QEMU_ALIGNED(16);
 } ARMVectorReg;
 
+/* In AArch32 mode, predicate registers do not exist at all.  */
+typedef struct ARMPredicateReg {
+#ifdef TARGET_AARCH64
+    uint64_t p[2 * ARM_MAX_VQ / 8] QEMU_ALIGNED(16);
+#else
+    uint64_t p[0];
+#endif
+} ARMPredicateReg;
+
 
 typedef struct CPUARMState {
     /* Regs for current mode.  */
@@ -513,6 +522,9 @@ typedef struct CPUARMState {
     struct {
         ARMVectorReg zregs[32];
 
+        /* Store FFR as pregs[16] to make it easier to treat as any other.  */
+        ARMPredicateReg pregs[17];
+
         uint32_t xregs[16];
         /* We store these fpcsr fields separately for convenience.  */
         int vec_len;
-- 
2.14.3