Changeset 15248 in vbox

Timestamp:

Dec 10, 2008 1:57:58 PM (16 years ago)

Author:

vboxsync

Message:

new REM: disable liveness analysis for 32-bit hosts and 64-bit targets, it's buggy

File:

• trunk/src/recompiler_new/tcg/tcg.c (modified) (1 diff)

trunk/src/recompiler_new/tcg/tcg.c

@@ -64 +64 @@
 #include "tcg-op.h"
 #include "elf.h"
+
+
+#ifdef VBOX
+/* 
+ * Liveness analysis doesn't work well with 32-bit hosts and 64-bit targets,
+ * second element of the register pair to store 64-bit value is consedered 
+ * dead, it seems. 
+ * @todo: fix it in compiler
+ */
+#if defined(TARGET_X86_64) && (TCG_TARGET_REG_BITS == 32)
+#undef USE_LIVENESS_ANALYSIS
+#endif
+#endif