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target/i386: clarify the "reg" argument of functions returning CCPrepare

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Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2024-04-10 11:21:01 +02:00
parent 89e4e65ac0
commit ccfabc00e0
1 changed files with 8 additions and 7 deletions
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15
target/i386/tcg/translate.c
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@ -937,7 +937,7 @@ static CCPrepare gen_prepare_sign_nz(TCGv src, MemOp size)
} }
} }
/* compute eflags.C to reg */ /* compute eflags.C, trying to store it in reg if not NULL */
static CCPrepare gen_prepare_eflags_c(DisasContext *s, TCGv reg) static CCPrepare gen_prepare_eflags_c(DisasContext *s, TCGv reg)
{ {
MemOp size; MemOp size;
@ -1008,7 +1008,7 @@ static CCPrepare gen_prepare_eflags_c(DisasContext *s, TCGv reg)
} }
} }
/* compute eflags.P to reg */ /* compute eflags.P, trying to store it in reg if not NULL */
static CCPrepare gen_prepare_eflags_p(DisasContext *s, TCGv reg) static CCPrepare gen_prepare_eflags_p(DisasContext *s, TCGv reg)
{ {
gen_compute_eflags(s); gen_compute_eflags(s);
@ -1016,7 +1016,7 @@ static CCPrepare gen_prepare_eflags_p(DisasContext *s, TCGv reg)
.imm = CC_P }; .imm = CC_P };
} }
/* compute eflags.S to reg */ /* compute eflags.S, trying to store it in reg if not NULL */
static CCPrepare gen_prepare_eflags_s(DisasContext *s, TCGv reg) static CCPrepare gen_prepare_eflags_s(DisasContext *s, TCGv reg)
{ {
switch (s->cc_op) { switch (s->cc_op) {
@ -1040,7 +1040,7 @@ static CCPrepare gen_prepare_eflags_s(DisasContext *s, TCGv reg)
} }
} }
/* compute eflags.O to reg */ /* compute eflags.O, trying to store it in reg if not NULL */
static CCPrepare gen_prepare_eflags_o(DisasContext *s, TCGv reg) static CCPrepare gen_prepare_eflags_o(DisasContext *s, TCGv reg)
{ {
switch (s->cc_op) { switch (s->cc_op) {
@ -1060,7 +1060,7 @@ static CCPrepare gen_prepare_eflags_o(DisasContext *s, TCGv reg)
} }
} }
/* compute eflags.Z to reg */ /* compute eflags.Z, trying to store it in reg if not NULL */
static CCPrepare gen_prepare_eflags_z(DisasContext *s, TCGv reg) static CCPrepare gen_prepare_eflags_z(DisasContext *s, TCGv reg)
{ {
switch (s->cc_op) { switch (s->cc_op) {
@ -1090,8 +1090,9 @@ static CCPrepare gen_prepare_eflags_z(DisasContext *s, TCGv reg)
} }
} }
/* perform a conditional store into register 'reg' according to jump opcode /* return how to compute jump opcode 'b'. 'reg' can be clobbered
value 'b'. In the fast case, T0 is guaranteed not to be used. */ * if needed; it may be used for CCPrepare.reg if that will
* provide more freedom in the translation of a subsequent setcond. */
static CCPrepare gen_prepare_cc(DisasContext *s, int b, TCGv reg) static CCPrepare gen_prepare_cc(DisasContext *s, int b, TCGv reg)
{ {
int inv, jcc_op, cond; int inv, jcc_op, cond;