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target-sparc: Move sdivx and udivx out of line

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The branches around the exception are maintaining an otherwise
unnecessary use of local temps for the cpu destination.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Richard Henderson 2012-10-05 16:55:03 -07:00 • committed by Blue Swirl
parent 61316742e2
commit c28ae41ecd
5 changed files with 37 additions and 52 deletions
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28
target-sparc/helper.c
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@ -75,6 +75,7 @@ static target_ulong helper_udiv_common(CPUSPARCState *env, target_ulong a,
x1 = (b & 0xffffffff);
if (x1 == 0) {
cpu_restore_state2(env, GETPC());
helper_raise_exception(env, TT_DIV_ZERO);
}
@ -113,6 +114,7 @@ static target_ulong helper_sdiv_common(CPUSPARCState *env, target_ulong a,
x1 = (b & 0xffffffff);
if (x1 == 0) {
cpu_restore_state2(env, GETPC());
helper_raise_exception(env, TT_DIV_ZERO);
}
@ -139,3 +141,29 @@ target_ulong helper_sdiv_cc(CPUSPARCState *env, target_ulong a, target_ulong b)
{
return helper_sdiv_common(env, a, b, 1);
}
#ifdef TARGET_SPARC64
int64_t helper_sdivx(CPUSPARCState *env, int64_t a, int64_t b)
{
if (b == 0) {
/* Raise divide by zero trap. */
cpu_restore_state2(env, GETPC());
helper_raise_exception(env, TT_DIV_ZERO);
} else if (b == -1) {
/* Avoid overflow trap with i386 divide insn. */
return -a;
} else {
return a / b;
}
}
uint64_t helper_udivx(CPUSPARCState *env, uint64_t a, uint64_t b)
{
if (b == 0) {
/* Raise divide by zero trap. */
cpu_restore_state2(env, GETPC());
helper_raise_exception(env, TT_DIV_ZERO);
}
return a / b;
}
#endif