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target/sparc: Remove CC_OP_TADDTV, CC_OP_TSUBTV

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Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2023-10-14 21:38:12 -07:00
parent f828df7443
commit 68524e83f8
4 changed files with 32 additions and 200 deletions
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36
target/sparc/helper.c
View file

@ -156,7 +156,7 @@ uint64_t helper_udivx(CPUSPARCState *env, uint64_t a, uint64_t b)
target_ulong helper_taddcctv(CPUSPARCState *env, target_ulong src1,
target_ulong src2)
{
target_ulong dst;
target_ulong dst, v;
/* Tag overflow occurs if either input has bits 0 or 1 set. */
if ((src1 | src2) & 3) {
@ -166,13 +166,23 @@ target_ulong helper_taddcctv(CPUSPARCState *env, target_ulong src1,
dst = src1 + src2;
/* Tag overflow occurs if the addition overflows. */
if (~(src1 ^ src2) & (src1 ^ dst) & (1u << 31)) {
v = ~(src1 ^ src2) & (src1 ^ dst);
if (v & (1u << 31)) {
goto tag_overflow;
}
/* Only modify the CC after any exceptions have been generated. */
env->cc_src = src1;
env->cc_src2 = src2;
env->cc_V = v;
env->cc_N = dst;
env->icc_Z = dst;
#ifdef TARGET_SPARC64
env->xcc_Z = dst;
env->icc_C = dst ^ src1 ^ src2;
env->xcc_C = dst < src1;
#else
env->icc_C = dst < src1;
#endif
return dst;
tag_overflow:
@ -182,7 +192,7 @@ target_ulong helper_taddcctv(CPUSPARCState *env, target_ulong src1,
target_ulong helper_tsubcctv(CPUSPARCState *env, target_ulong src1,
target_ulong src2)
{
target_ulong dst;
target_ulong dst, v;
/* Tag overflow occurs if either input has bits 0 or 1 set. */
if ((src1 | src2) & 3) {
@ -192,13 +202,23 @@ target_ulong helper_tsubcctv(CPUSPARCState *env, target_ulong src1,
dst = src1 - src2;
/* Tag overflow occurs if the subtraction overflows. */
if ((src1 ^ src2) & (src1 ^ dst) & (1u << 31)) {
v = (src1 ^ src2) & (src1 ^ dst);
if (v & (1u << 31)) {
goto tag_overflow;
}
/* Only modify the CC after any exceptions have been generated. */
env->cc_src = src1;
env->cc_src2 = src2;
env->cc_V = v;
env->cc_N = dst;
env->icc_Z = dst;
#ifdef TARGET_SPARC64
env->xcc_Z = dst;
env->icc_C = dst ^ src1 ^ src2;
env->xcc_C = src1 < src2;
#else
env->icc_C = src1 < src2;
#endif
return dst;
tag_overflow: