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-rw-r--r--target-sparc/op_helper.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/target-sparc/op_helper.c b/target-sparc/op_helper.c
index f8f94ac39a..3cc4f501cc 100644
--- a/target-sparc/op_helper.c
+++ b/target-sparc/op_helper.c
@@ -234,7 +234,10 @@ void helper_faligndata(void)
uint64_t tmp;
tmp = (*((uint64_t *)&DT0)) << ((env->gsr & 7) * 8);
- tmp |= (*((uint64_t *)&DT1)) >> (64 - (env->gsr & 7) * 8);
+ /* on many architectures a shift of 64 does nothing */
+ if ((env->gsr & 7) != 0) {
+ tmp |= (*((uint64_t *)&DT1)) >> (64 - (env->gsr & 7) * 8);
+ }
*((uint64_t *)&DT0) = tmp;
}