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-rw-r--r--tcg/tcg-opc.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/tcg/tcg-opc.h b/tcg/tcg-opc.h
index c7d971fa3d..242d608e6d 100644
--- a/tcg/tcg-opc.h
+++ b/tcg/tcg-opc.h
@@ -35,7 +35,7 @@ DEF(call, 0, 0, 3, TCG_OPF_CALL_CLOBBER | TCG_OPF_NOT_PRESENT)
DEF(br, 0, 0, 1, TCG_OPF_BB_END)
-#define IMPL(X) (__builtin_constant_p(X) && !(X) ? TCG_OPF_NOT_PRESENT : 0)
+#define IMPL(X) (__builtin_constant_p(X) && (X) <= 0 ? TCG_OPF_NOT_PRESENT : 0)
#if TCG_TARGET_REG_BITS == 32
# define IMPL64 TCG_OPF_64BIT | TCG_OPF_NOT_PRESENT
#else