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| author | Aurelien Jarno <aurelien@aurel32.net> | 2013-05-08 22:36:39 +0200 |
|---|---|---|
| committer | Aurelien Jarno <aurelien@aurel32.net> | 2013-05-09 16:14:58 +0200 |
| commit | 66e61b55f158ef5628e4c056dd2f233c9351a3f5 (patch) | |
| tree | 6db143a8c30e4b43c91d629be686d1686c240a97 /tcg/optimize.c | |
| parent | 47ec15cdd44877e553ed0bd0a16aea8a295dad62 (diff) | |
| download | qemu-66e61b55f158ef5628e4c056dd2f233c9351a3f5.zip qemu-66e61b55f158ef5628e4c056dd2f233c9351a3f5.tar.gz qemu-66e61b55f158ef5628e4c056dd2f233c9351a3f5.tar.bz2 | |
tcg/optimize: fix setcond2 optimization
When setcond2 is rewritten into setcond, the state of the destination
temp should be reset, so that a copy of the previous value is not
used instead of the result.
Reported-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Diffstat (limited to 'tcg/optimize.c')
| -rw-r--r-- | tcg/optimize.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tcg/optimize.c b/tcg/optimize.c index 1b6644c..b35868a 100644 --- a/tcg/optimize.c +++ b/tcg/optimize.c @@ -1057,6 +1057,7 @@ static TCGArg *tcg_constant_folding(TCGContext *s, uint16_t *tcg_opc_ptr, /* Simplify LT/GE comparisons vs zero to a single compare vs the high word of the input. */ s->gen_opc_buf[op_index] = INDEX_op_setcond_i32; + reset_temp(args[0]); gen_args[0] = args[0]; gen_args[1] = args[2]; gen_args[2] = args[4]; |