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| author | Aurelien Jarno <aurelien@aurel32.net> | 2009-10-15 23:08:46 +0200 |
|---|---|---|
| committer | Aurelien Jarno <aurelien@aurel32.net> | 2009-10-23 00:05:17 +0200 |
| commit | 686eeb93d5738c84c59395b2ec6f8181c2b7cbed (patch) | |
| tree | 13b0a3533034804c14ed2e51c401f02de5302a45 /target-arm | |
| parent | 7bbcb0afe715c36545bbbd872441c473927c1a4e (diff) | |
| download | qemu-686eeb93d5738c84c59395b2ec6f8181c2b7cbed.zip qemu-686eeb93d5738c84c59395b2ec6f8181c2b7cbed.tar.gz qemu-686eeb93d5738c84c59395b2ec6f8181c2b7cbed.tar.bz2 | |
target-arm: fix sdiv helper
(INT32_MIN / -1) triggers an overflow, and the result depends on the
host architecture (INT32_MIN on arm, -1 on ppc, SIGFPE on x86). Use a
test to output the correct value.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Acked-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Diffstat (limited to 'target-arm')
| -rw-r--r-- | target-arm/helper.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/target-arm/helper.c b/target-arm/helper.c index 656b5df..021d121 100644 --- a/target-arm/helper.c +++ b/target-arm/helper.c @@ -402,6 +402,8 @@ int32_t HELPER(sdiv)(int32_t num, int32_t den) { if (den == 0) return 0; + if (num == INT_MIN && den == -1) + return INT_MIN; return num / den; } |