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icount: remove unnecessary gen_io_end calls

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Prior patch resets can_do_io flag at the TB entry. Therefore there is no
need in resetting this flag at the end of the block.
This patch removes redundant gen_io_end calls.

Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
Message-Id: <156404429499.18669.13404064982854123855.stgit@pasha-Precision-3630-Tower>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@gmail.com>
This commit is contained in:
Pavel Dovgalyuk 2019-07-25 11:44:55 +03:00 • committed by Paolo Bonzini
parent ba3e792669
commit 9e9b10c649
18 changed files with 7 additions and 102 deletions
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11
target/mips/translate.c
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@ -7129,9 +7129,6 @@ static void gen_mfc0(DisasContext *ctx, TCGv arg, int reg, int sel)
gen_io_start();
}
gen_helper_mfc0_count(arg, cpu_env);
if (tb_cflags(ctx->base.tb) & CF_USE_ICOUNT) {
gen_io_end();
}
/*
* Break the TB to be able to take timer interrupts immediately
* after reading count. DISAS_STOP isn't sufficient, we need to
@ -8296,7 +8293,6 @@ static void gen_mtc0(DisasContext *ctx, TCGv arg, int reg, int sel)
/* For simplicity assume that all writes can cause interrupts. */
if (tb_cflags(ctx->base.tb) & CF_USE_ICOUNT) {
gen_io_end();
/*
* DISAS_STOP isn't sufficient, we need to ensure we break out of
* translated code to check for pending interrupts.
@ -8607,9 +8603,6 @@ static void gen_dmfc0(DisasContext *ctx, TCGv arg, int reg, int sel)
gen_io_start();
}
gen_helper_mfc0_count(arg, cpu_env);
if (tb_cflags(ctx->base.tb) & CF_USE_ICOUNT) {
gen_io_end();
}
/*
* Break the TB to be able to take timer interrupts immediately
* after reading count. DISAS_STOP isn't sufficient, we need to
@ -9748,7 +9741,6 @@ static void gen_dmtc0(DisasContext *ctx, TCGv arg, int reg, int sel)
/* For simplicity assume that all writes can cause interrupts. */
if (tb_cflags(ctx->base.tb) & CF_USE_ICOUNT) {
gen_io_end();
/*
* DISAS_STOP isn't sufficient, we need to ensure we break out of
* translated code to check for pending interrupts.
@ -12817,9 +12809,6 @@ static void gen_rdhwr(DisasContext *ctx, int rt, int rd, int sel)
gen_io_start();
}
gen_helper_rdhwr_cc(t0, cpu_env);
if (tb_cflags(ctx->base.tb) & CF_USE_ICOUNT) {
gen_io_end();
}
gen_store_gpr(t0, rt);
/*
* Break the TB to be able to take timer interrupts immediately