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authorPeter Maydell <peter.maydell@linaro.org>2011-06-22 15:16:32 +0100
committerBlue Swirl <blauwirbel@gmail.com>2011-07-12 20:29:46 +0000
commit5b620fb698e69a5386f2f02c7c455bdbdd59a52b (patch)
treee456eca4760bd7136a5c0170f6c6e210e8fbc864 /exec-all.h
parenta884da8a06806d55fa83c8011bb17d6838583f9b (diff)
exec-all.h: Make MAX_OP_PER_INSTR large enough for target-arm's uses
The target-arm frontend's worst-case TCG ops per instr is 194 (and in general many of the "load multiple registers" ARM instructions generate more than 100 TCG ops). Raise MAX_OP_PER_INSTR accordingly to avoid possible buffer overruns. Since it doesn't make any sense for the "64 bit guest on 32 bit host" case to have a smaller limit than the normal case, we collapse the two cases back into each other again. (This increase costs us about 14K in extra static buffer space and 21K of extra margin at the end of a 32MB codegen buffer.) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Diffstat (limited to 'exec-all.h')
-rw-r--r--exec-all.h6
1 files changed, 1 insertions, 5 deletions
diff --git a/exec-all.h b/exec-all.h
index 21a69d68ad..69acf3b97d 100644
--- a/exec-all.h
+++ b/exec-all.h
@@ -44,11 +44,7 @@ struct TranslationBlock;
typedef struct TranslationBlock TranslationBlock;
/* XXX: make safe guess about sizes */
-#if (HOST_LONG_BITS == 32) && (TARGET_LONG_BITS == 64)
-#define MAX_OP_PER_INSTR 128
-#else
-#define MAX_OP_PER_INSTR 96
-#endif
+#define MAX_OP_PER_INSTR 208
#if HOST_LONG_BITS == 32
#define MAX_OPC_PARAM_PER_ARG 2