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target/sparc: Merge gen_branch2 into advance_pc 

The function had only one caller.  Canonicalize the cpu_cond
test to TCG_COND_NE, the "natural" sense of its value.

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 2023-10-16 10:32:50 -07:00
parent c76c804509
commit 4a8d145d71
1 changed files with 14 additions and 14 deletions
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28
target/sparc/translate.c
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@ -908,19 +908,6 @@ static void gen_op_eval_fbo(TCGv dst, TCGv src, unsigned int fcc_offset)
tcg_gen_xori_tl(dst, dst, 0x1); tcg_gen_xori_tl(dst, dst, 0x1);
} }
static void gen_branch2(DisasContext *dc, target_ulong pc1,
target_ulong pc2, TCGv r_cond)
{
TCGLabel *l1 = gen_new_label();
tcg_gen_brcondi_tl(TCG_COND_EQ, r_cond, 0, l1);
gen_goto_tb(dc, 0, pc1, pc1 + 4);
gen_set_label(l1);
gen_goto_tb(dc, 1, pc2, pc2 + 4);
}
static void gen_generic_branch(DisasContext *dc) static void gen_generic_branch(DisasContext *dc)
{ {
TCGv npc0 = tcg_constant_tl(dc->jump_pc[0]); TCGv npc0 = tcg_constant_tl(dc->jump_pc[0]);
@ -2352,6 +2339,8 @@ static int extract_qfpreg(DisasContext *dc, int x)
/* Default case for non jump instructions. */ /* Default case for non jump instructions. */
static bool advance_pc(DisasContext *dc) static bool advance_pc(DisasContext *dc)
{ {
TCGLabel *l1;
if (dc->npc & 3) { if (dc->npc & 3) {
switch (dc->npc) { switch (dc->npc) {
case DYNAMIC_PC: case DYNAMIC_PC:
@ -2359,11 +2348,22 @@ static bool advance_pc(DisasContext *dc)
dc->pc = dc->npc; dc->pc = dc->npc;
gen_op_next_insn(); gen_op_next_insn();
break; break;
case JUMP_PC: case JUMP_PC:
/* we can do a static jump */ /* we can do a static jump */
gen_branch2(dc, dc->jump_pc[0], dc->jump_pc[1], cpu_cond); l1 = gen_new_label();
tcg_gen_brcondi_tl(TCG_COND_NE, cpu_cond, 0, l1);
/* jump not taken */
gen_goto_tb(dc, 1, dc->jump_pc[1], dc->jump_pc[1] + 4);
/* jump taken */
gen_set_label(l1);
gen_goto_tb(dc, 0, dc->jump_pc[0], dc->jump_pc[0] + 4);
dc->base.is_jmp = DISAS_NORETURN; dc->base.is_jmp = DISAS_NORETURN;
break; break;
default: default:
g_assert_not_reached(); g_assert_not_reached();
} }