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target/mips: nanoMIPS: Fix branch handling 

Fix nanoMIPS branch handling.

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Stefan Markovic <smarkovic@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
This commit is contained in:
Stefan Markovic 2019-01-22 16:06:21 +01:00 committed by Aleksandar Markovic
parent fc95c2412e
commit 697b7b6bc5
1 changed files with 12 additions and 0 deletions
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12
target/mips/translate.c
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@ -19758,6 +19758,10 @@ static void gen_compute_imm_branch(DisasContext *ctx, uint32_t opc,
goto out;
}
/* branch completion */
clear_branch_hflags(ctx);
ctx->base.is_jmp = DISAS_NORETURN;
if (bcond_compute == 0) {
/* Uncoditional compact branch */
gen_goto_tb(ctx, 0, ctx->btarget);
@ -19798,6 +19802,10 @@ static void gen_compute_nanomips_pbalrsc_branch(DisasContext *ctx, int rs,
tcg_gen_movi_tl(t1, ctx->base.pc_next + 4);
gen_op_addr_add(ctx, btarget, t1, t0);
/* branch completion */
clear_branch_hflags(ctx);
ctx->base.is_jmp = DISAS_NORETURN;
/* unconditional branch to register */
tcg_gen_mov_tl(cpu_PC, btarget);
tcg_gen_lookup_and_goto_ptr();
@ -19936,6 +19944,10 @@ static void gen_compute_compact_branch_nm(DisasContext *ctx, uint32_t opc,
goto out;
}
/* branch completion */
clear_branch_hflags(ctx);
ctx->base.is_jmp = DISAS_NORETURN;
/* Generating branch here as compact branches don't have delay slot */
gen_goto_tb(ctx, 1, ctx->btarget);
gen_set_label(fs);