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-rw-r--r--target/riscv/vector_internals.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/target/riscv/vector_internals.h b/target/riscv/vector_internals.h
index 842765f6c1..9e1e15b575 100644
--- a/target/riscv/vector_internals.h
+++ b/target/riscv/vector_internals.h
@@ -24,6 +24,13 @@
#include "tcg/tcg-gvec-desc.h"
#include "internals.h"
+#define VSTART_CHECK_EARLY_EXIT(env) do { \
+ if (env->vstart >= env->vl) { \
+ env->vstart = 0; \
+ return; \
+ } \
+} while (0)
+
static inline uint32_t vext_nf(uint32_t desc)
{
return FIELD_EX32(simd_data(desc), VDATA, NF);
@@ -151,6 +158,8 @@ void HELPER(NAME)(void *vd, void *v0, void *vs2, \
uint32_t vma = vext_vma(desc); \
uint32_t i; \
\
+ VSTART_CHECK_EARLY_EXIT(env); \
+ \
for (i = env->vstart; i < vl; i++) { \
if (!vm && !vext_elem_mask(v0, i)) { \
/* set masked-off elements to 1s */ \